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Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Warm Springs State Hospital Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal...

2

Warm Springs Water District District Heating Low Temperature...  

Open Energy Info (EERE)

Water District District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs Water District District Heating Low Temperature Geothermal...

3

Brooks Warm Springs Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Warm Springs Aquaculture Low Temperature Geothermal Facility Warm Springs Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Brooks Warm Springs Aquaculture Low Temperature Geothermal Facility Facility Brooks Warm Springs Sector Geothermal energy Type Aquaculture Location Fergus County, Montana Coordinates 47.2126745°, -109.4141° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

4

Warm Springs State Hospital Space Heating Low Temperature Geothermal  

Open Energy Info (EERE)

State Hospital Space Heating Low Temperature Geothermal State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility Facility Warm Springs State Hospital Sector Geothermal energy Type Space Heating Location Warm Springs, Montana Coordinates 46.1813145°, -112.78476° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

5

Roosevelt Warm Springs Institute for Rehab. Space Heating Low Temperature  

Open Energy Info (EERE)

Space Heating Low Temperature Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Roosevelt Warm Springs Institute for Rehab. Space Heating Low Temperature Geothermal Facility Facility Roosevelt Warm Springs Institute for Rehab. Sector Geothermal energy Type Space Heating Location Warm Springs, Georgia Coordinates 32.8904081°, -84.6810381° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

6

Warm Springs Greenhouses Greenhouse Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Greenhouses Greenhouse Low Temperature Geothermal Facility Greenhouses Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs Greenhouses Greenhouse Low Temperature Geothermal Facility Facility Warm Springs Greenhouses Sector Geothermal energy Type Greenhouse Location Banks, Idaho Coordinates 44.0804473°, -116.1240151° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

7

Warm Springs Water District District Heating Low Temperature Geothermal  

Open Energy Info (EERE)

Water District District Heating Low Temperature Geothermal Water District District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs Water District District Heating Low Temperature Geothermal Facility Facility Warm Springs Water District Sector Geothermal energy Type District Heating Location Boise, Idaho Coordinates 43.6135002°, -116.2034505° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

8

Estimating impacts of warming temperatures on California's electricity  

NLE Websites -- All DOE Office Websites (Extended Search)

impacts of warming temperatures on California's electricity impacts of warming temperatures on California's electricity system Title Estimating impacts of warming temperatures on California's electricity system Publication Type Journal Article Year of Publication 2013 Authors Sathaye, Jayant A., Larry L. Dale, Peter H. Larsen, Gary A. Fitts, Kevin Koy, Sarah M. Lewis, and André Frossard Pereira de Lucena Journal Global Environmental Change Volume 23 Start Page 499 Issue 2 Pagination 499-511 Date Published 04/2013 Keywords EES-EG, electricity markets and policy group Abstract Despite a clear need, little research has been carried out at the regional-level to quantify potential climate-related impacts to electricity production and delivery systems. This paper introduces a bottom-up study of climate change impacts on California's energy infrastructure, including high temperature effects on power plant capacity, transmission lines, substation capacity, and peak electricity demand. End-of-century impacts were projected using the A2 and B1 Intergovernmental Panel on Climate Change emission scenarios. The study quantifies the effect of high ambient temperatures on electricity generation, the capacity of substations and transmission lines, and the demand for peak power for a set of climate scenarios. Based on these scenarios, atmospheric warming and associated peak demand increases would necessitate up to 38% of additional peak generation capacity and up to 31% additional transmission capacity, assuming current infrastructure. These findings, although based on a limited number of scenarios, suggest that additional funding could be put to good use by supporting R&D into next generation cooling equipment technologies, diversifying the power generation mix without compromising the system's operational flexibility, and designing effective demand side management programs.

9

The Role of Human Activity in the Recent Warming of Extremely Warm Daytime Temperatures  

Science Conference Proceedings (OSTI)

Formal detection and attribution analyses of changes in daily extremes give evidence of a significant human influence on the increasing severity of extremely warm nights and decreasing severity of extremely cold days and nights. This paper ...

Nikolaos Christidis; Peter A. Stott; Simon J. Brown

2011-04-01T23:59:59.000Z

10

Inferring Climate Change from Underground Temperatures: Apparent Climatic Stability and Apparent Climatic Warming  

Science Conference Proceedings (OSTI)

Data are used to demonstrate two effects apparent in ground surface temperature histories coming from inversions of borehole temperatures: apparent climatic warming and apparent climatic stability. Unrecognized local terrain effects, such as ...

Trevor Lewis; Walter Skinner

2003-09-01T23:59:59.000Z

11

Pacific Warm Pool Temperature Regulation during TOGA COARE: Upper Ocean Feedback  

Science Conference Proceedings (OSTI)

The Hasselmann feedback model was applied to hindcast western Pacific warm pool sea surface temperatures (SST) with heat flux observations obtained near 2S, 156E from October 1992 to February 1993 during the Tropical Ocean Global Atmosphere ...

Gary S. E. Lagerloef; Roger Lukas; Robert A. Weller; Steven P. Anderson

1998-09-01T23:59:59.000Z

12

Fast and Slow Response to Global Warming: Sea Surface Temperature and Precipitation Patterns  

Science Conference Proceedings (OSTI)

The time-dependent response of sea surface temperature (SST) to global warming and the associated atmospheric changes are investigated based on a 1% year-1 CO2 increase to quadrupling experiment of the Geophysical Fluid Dynamics Laboratory climate ...

Shang-Min Long; Shang-Ping Xie; Xiao-Tong Zheng; Qinyu Liu

13

How Does the Eye Warm? Part I: A Potential Temperature Budget Analysis of an Idealized Tropical Cyclone  

Science Conference Proceedings (OSTI)

In this first part of a two-part study, the mechanisms that accomplish the warming in the eye of tropical cyclones are investigated through a potential temperature budget analysis of an idealized simulation. The spatial structure of warming varies ...

Daniel P. Stern; Fuqing Zhang

2013-01-01T23:59:59.000Z

14

Estimating impacts of warming temperatures on California's electricity...  

NLE Websites -- All DOE Office Websites (Extended Search)

energy infrastructure, including high temperature effects on power plant capacity, transmission lines, substation capacity, and peak electricity demand. End-of-century...

15

Roosevelt Warm Springs Institute for Rehab. Pool & Spa Low Temperature  

Open Energy Info (EERE)

Pool & Spa Low Temperature Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Roosevelt Warm Springs Institute for Rehab. Pool & Spa Low Temperature Geothermal Facility Facility Roosevelt Warm Springs Institute for Rehab. Sector Geothermal energy Type Pool and Spa Location Warm Springs, Georgia Coordinates 32.8904081°, -84.6810381° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

16

Global Warming Pattern Formation: Sea Surface Temperature and Rainfall  

Science Conference Proceedings (OSTI)

Spatial variations in sea surface temperature (SST) and rainfall changes over the tropics are investigated based on ensemble simulations for the first half of the twenty-first century under the greenhouse gas (GHG) emission scenario A1B with ...

Shang-Ping Xie; Clara Deser; Gabriel A. Vecchi; Jian Ma; Haiyan Teng; Andrew T. Wittenberg

2010-02-01T23:59:59.000Z

17

Warm Springs Resort Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Warm Springs Resort Pool & Spa Low Temperature Geothermal Facility Warm Springs Resort Pool & Spa Low Temperature Geothermal Facility Facility Warm Springs Resort Sector Geothermal energy Type Pool and Spa Location Idaho City, Idaho Coordinates 43.8285046°, -115.8345537° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

18

The Effect of Urban Warming on the Northern Hemisphere Temperature Average  

Science Conference Proceedings (OSTI)

The significance of the urban warming effect on large-scale and hemispheric mean temperature series is assessed using estimates of the urbanization bias for stations in the United States produced by Karl et al. It is concluded that the Northern ...

P. D. Jones; P. M. Kelly; C. M. Goodess; T. Karl

1989-03-01T23:59:59.000Z

19

Feasibility study of measuring the temperature and pressure of warm dense matter.  

Science Conference Proceedings (OSTI)

We have investigated the feasibility of making accurate measurements of the temperature and pressure of solid-density samples rapidly heated by the Z-Petawatt laser to warm dense matter (WDM) conditions, with temperatures approaching 100eV. The study focused specifically on the heating caused by laser generated proton beams. Based on an extensive literature search and numerical investigations, a WDM experiment is proposed which will accurately measure temperature and pressure based on optical emission from the surface and sample expansion velocity.

Rambo, Patrick K.; Schwarz, Jens

2008-09-01T23:59:59.000Z

20

Model Diagnosis of Nighttime Minimum Temperature Warming during Summer due to Irrigation in the California Central Valley  

Science Conference Proceedings (OSTI)

This study examines the mechanisms of nighttime minimum temperature warming in the California Central Valley during summer due to irrigation. The Scripps Experimental Climate Prediction Center (ECPC) Regional Spectral Model (RSM) was used to ...

Hideki Kanamaru; Masao Kanamitsu

2008-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Seasonal Prediction of Air Temperature Associated with the Growing-Season Start of Warm-Season Crops across Canada  

Science Conference Proceedings (OSTI)

Seasonal prediction of growing-season start of warm-season crops (GSSWC) is an important task for the agriculture sector to identify risks and opportunities in advance. On the basis of observational daily surface air temperature at 210 stations ...

Zhiwei Wu; Hai Lin; Ted OBrien

2011-08-01T23:59:59.000Z

22

A Climatology of Warm-Season Cloud Patterns over East Asia Based on GMS Infrared Brightness Temperature Observations  

Science Conference Proceedings (OSTI)

In the present study, hourly infrared (IR) brightness temperatures observed by the Geostationary Meteorological Satellite (GMS) over the region 2040N, 95145E in MayAugust 19982001 are used to compile a climatology of warm-season cloud/...

Chung-Chieh Wang; George Tai-Jen Chen; Richard E. Carbone

2004-07-01T23:59:59.000Z

23

Diagnostics of Climate Model Biases in Summer Temperature and Warm-Season Insolation for the Simulation of Regional Paddy Rice Yield in Japan  

Science Conference Proceedings (OSTI)

This study quantifies the ranges of climate model biases in surface air temperature for July and August (summer temperature) and daily total insolation for MayOctober (warm-season insolation) that can give simulated regional paddy rice yields ...

Toshichika Iizumi; Motoki Nishimori; Masayuki Yokozawa

2010-04-01T23:59:59.000Z

24

The Effect of the Sea Ice Freshwater Flux on Southern Ocean Temperatures in CCSM3: Deep-Ocean Warming and Delayed Surface Warming  

Science Conference Proceedings (OSTI)

This study explores the role of sea ice freshwater and salt fluxes in modulating twenty-first-century surface warming in the Southern Ocean via analysis of sensitivity experiments in the Community Climate System Model, version 3 (CCSM3). In ...

Clark H. Kirkman IV; Cecilia M. Bitz

2011-05-01T23:59:59.000Z

25

A New Perspective on Recent Global Warming: Asymmetric Trends of Daily Maximum and Minimum Temperature  

Science Conference Proceedings (OSTI)

Monthly mean maximum and minimum temperatures for over 50% (10%) of the Northern (Southern) Hemisphere landmass, accounting for 37% of the global landmass, indicate that the rise of the minimum temperature has occurred at a rate three times that ...

Thomas R. Karl; Richard W. Knight; Kevin P. Gallo; Thomas C. Peterson; Philip D. Jones; George Kukla; Neil Plummer; Vyacheslav Razuvayev; Janette Lindseay; Robert J. Charlson

1993-06-01T23:59:59.000Z

26

Effect of Forging Strain Rate and Deformation Temperature on the Mechanical Properties of Warm-Worked 304L Stainless Steel  

Science Conference Proceedings (OSTI)

Stainless steel 304L forgings were produced with four different types of production forging equipment hydraulic press, mechanical press, screw press, and high-energy rate forging (HERF). Each machine imparted a different nominal strain rate during the deformation. The final forgings were done at the warm working (low hot working) temperatures of 816 ?C, 843 ?C, and 871 ?C. The objectives of the study were to characterize and understand the effect of industrial strain rates (i.e. processing equipment), and deformation temperature on the mechanical properties for the final component. Some of the components were produced with an anneal prior to the final forging while others were deformed without the anneal. The results indicate that lower strain rates produced lower strength and higher ductility components, but the lower strain rate processes were more sensitive to deformation temperature variation and resulted in more within-part property variation. The highest strain rate process, HERF, resulted in slightly lower yield strength due to internal heating. Lower processing temperatures increased strength, decreased ductility but decreased within-part property variation. The anneal prior to the final forging produced a decrease in strength, a small increase in ductility, and a small decrease of within-part property variation.

Nathan T Switzner

2010-02-01T23:59:59.000Z

27

Warming Break Trends and Fractional Integration in the Northern, Southern, and Global Temperature Anomaly Series  

Science Conference Proceedings (OSTI)

This paper deals with the estimation of time trends in temperature anomaly series. However, instead of imposing that the estimated residuals from the time trends are covariance stationary processes with spectral density that is positive and ...

Luis A. Gil-Alana

2008-04-01T23:59:59.000Z

28

On the maintenance of weak meridional temperature gradients during warm climates  

E-Print Network (OSTI)

This thesis examines the dynamics of equable climates. The underlying physics of two mechanisms by which weak meridional temperature gradients might be maintained are studied. First, I examine the evolution of stratospheric ...

Korty, Robert Lindsay

2005-01-01T23:59:59.000Z

29

Novel Regenerable Sodium Based Sorbents for CO2 Capture at Warm Gas Temperatures  

Science Conference Proceedings (OSTI)

A novel sorbent consisting of NaOH/CaO was developed for CO2 capture at 315 C suitable for high-temperature CO2-capture applications, such as coal gasification systems. The sorbent is regenerable at 700 C, and steam does not affect the sorbent performance. A multicycle test conducted in the atmospheric reactor at 315 C indicated that the sorbent improved the performance with an increased number of cycles. The sorbent can also capture CO2 at a wide range of temperatures from ambient to 500 C. However, the mechanism of CO2 capture is different at ambient temperature. The sorbent is unique because it has a high CO2-capture capacity of more than 3 mol/kg at 315 C and is regenerable at 700 C

Siriwardane, R.V.; Shen, Ming; Robinson, Clark; Simonyi, Thomas

2007-07-01T23:59:59.000Z

30

Taking China's Temperature: Daily Range, Warming Trends, and Regional Variations, 19552000  

Science Conference Proceedings (OSTI)

In analyzing daily climate data from 305 weather stations in China for the period from 1955 to 2000, the authors found that surface air temperatures are increasing with an accelerating trend after 1990. They also found that the daily maximum (T...

Binhui Liu; Ming Xu; Mark Henderson; Ye Qi; Yiqing Li

2004-11-01T23:59:59.000Z

31

Novel regenerable magnesium hydroxide sorbents for CO2 capture at warm gas temperatures  

SciTech Connect

A novel sorbent consisting of Mg(OH)2 was developed for carbon dioxide (CO2) capture at 200-315 C suitable for CO2 capture applications such as coal gasification systems. Thermodynamic analysis conducted with the FactSage software package indicated that the Mg(OH)2 sorbent system is highly favorable for CO2 capture up to 400 C at 30 atm. MgCO3 formed during sorption decomposes to release CO2 at temperatures as low as 375 C up to 20 atm. MgO rehydroxylation to form Mg(OH)2 is possible at temperatures up to 300 C at 20 atm. The experimental data show that the sorbent is regenerable at 375 C at high pressure and that steam does not affect the sorbent performance. A multicycle test conducted in a high-pressure fixed-bed flow reactor at 200 C with 28% CO2 showed stable reactivity during the cyclic tests. The capture capacity also increased with increasing pressure. The sorbent is unique because it exhibits a high CO2 capture capacity of more than 3 mol/kg at 200 C and also is regenerable at a low temperature of 375 C and high pressure. High-pressure regeneration is advantageous because the CO2 compression costs required for sequestration can be reduced.

Siriwardane, R.; Stevens, R.

2009-01-01T23:59:59.000Z

32

Novel regenerable magnesium hydroxide sorbents for CO{sub 2} capture at warm gas temperatures  

SciTech Connect

A novel sorbent consisting of Mg(OH){sub 2} was developed for carbon dioxide (CO{sub 2}) capture at 200-315{sup o}C suitable for CO{sub 2} capture applications such as coal gasification systems. Thermodynamic analysis conducted with the FactSage software package indicated that the Mg(OH){sub 2} sorbent system is highly favorable for CO{sub 2} capture up to 400{sup o}C at 30 atm. MgCO{sub 3} formed during sorption decomposes to release CO{sub 2} at temperatures as low as 375{sup o}C up to 20 atm. MgO rehydroxylation to form Mg(OH){sub 2} is possible at temperatures up to 300{sup o}C at 20 atm. The experimental data show that the sorbent is regenerable at 375{sup o}C at high pressure and that steam does not affect the sorbent performance. A multicycle test conducted in a high-pressure fixed-bed flow reactor at 200{sup o}C with 28% CO{sub 2} showed stable reactivity during the cyclic tests. The capture capacity also increased with increasing pressure. The sorbent is unique because it exhibits a high CO{sub 2} capture capacity of more than 3 mol/kg at 200 {sup o}C and also is regenerable at a low temperature of 375 {sup o} C and high pressure. High-pressure regeneration is advantageous because the CO{sub 2} compression costs required for sequestration can be reduced.

Siriwardane, R.V.; Stevens, R.W. [US DOE, Morgantown, WV (USA). National Energy Technology Laboratory

2009-02-15T23:59:59.000Z

33

Solar and Daytime Infrared Irradiance during Winter Chinooks  

Science Conference Proceedings (OSTI)

Chinook winds bring unseasonably warm temperatures to southern Alberta in the winter. They also melt the snow and evaporate, the surface and near surface soil water. Hitherto, the warmth of the wind had almost exclusively been linked to the ...

Lawrence C. Nkemdirim

1990-03-01T23:59:59.000Z

34

Why Are There Tropical Warm Pools?  

Science Conference Proceedings (OSTI)

Tropical warm pools appear as the primary mode in the distribution of tropical sea surface temperature (SST). Most previous studies have focused on the role of atmospheric processes in homogenizing temperatures in the warm pool and establishing ...

Amy C. Clement; Richard Seager; Raghu Murtugudde

2005-12-01T23:59:59.000Z

35

A KNOWLEDGE DISCOVERY STRATEGY FOR RELATING SEA SURFACE TEMPERATURES TO FREQUENCIES OF TROPICAL STORMS AND GENERATING PREDICTIONS OF HURRICANES UNDER 21ST-CENTURY GLOBAL WARMING SCENARIOS  

Science Conference Proceedings (OSTI)

The connections among greenhouse-gas emissions scenarios, global warming, and frequencies of hurricanes or tropical cyclones are among the least understood in climate science but among the most fiercely debated in the context of adaptation decisions or mitigation policies. Here we show that a knowledge discovery strategy, which leverages observations and climate model simulations, offers the promise of developing credible projections of tropical cyclones based on sea surface temperatures (SST) in a warming environment. While this study motivates the development of new methodologies in statistics and data mining, the ability to solve challenging climate science problems with innovative combinations of traditional and state-of-the-art methods is demonstrated. Here we develop new insights, albeit in a proof-of-concept sense, on the relationship between sea surface temperatures and hurricane frequencies, and generate the most likely projections with uncertainty bounds for storm counts in the 21st-century warming environment based in turn on the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios. Our preliminary insights point to the benefits that can be achieved for climate science and impacts analysis, as well as adaptation and mitigation policies, by a solution strategy that remains tailored to the climate domain and complements physics-based climate model simulations with a combination of existing and new computational and data science approaches.

Race, Caitlin [University of Minnesota; Steinbach, Michael [University of Minnesota; Ganguly, Auroop R [ORNL; Semazzi, Fred [North Carolina State University; Kumar, Vipin [University of Minnesota

2010-01-01T23:59:59.000Z

36

A Decomposition of Feedback Contributions to Polar Warming Amplification  

Science Conference Proceedings (OSTI)

Polar surface temperatures are expected to warm 2-3 times faster than the global mean surface temperature; a phenomenon referred to as polar warming amplification. Therefore, understanding individual process contributions to the polar warming is ...

Patrick C. Taylor; Ming Cai; Aixue Hu; Jerry Meehl; Warren Washington; Guang J. Zhang

37

Solar Warming Submitted to Avalanche.ca Journal Feb. 2008 Can solar warming contribute to dry slab avalanches?  

E-Print Network (OSTI)

Solar Warming Submitted to Avalanche.ca Journal Feb. 2008 Can solar warming contribute to dry slab, when signs of warming, such as relatively warm air temperatures, strong solar radiation, and moist by a skier on a steep south-west facing aspect. Solar warming may have contributed to this release. (photo

Jamieson, Bruce

38

Understanding ENSO Regime Behavior upon an Increase in the Warm-Pool Temperature Using a Simple ENSO Model  

Science Conference Proceedings (OSTI)

The regime behavior of the low-order El NioSouthern Oscillation (ENSO) model, according to an increase in the radiativeconvective equilibrium sea surface temperature (SST; Tr), is studied to provide a possible explanation for the observed ...

Baek-Min Kim; Soon-Il An

2011-03-01T23:59:59.000Z

39

Warm Gas Cleanup  

NLE Websites -- All DOE Office Websites (Extended Search)

Warm Gas Cleanup Warm Gas Cleanup NETL Office of Research and Development Project Number: FWP-2012.03.03 Task 5 Project Description The Environmental Protection Agency (EPA) has established strict regulations for the trace contaminant emissions from integrated gasification combined cycle (IGCC) systems. The Department of Energy (DOE) performance goals for trace contaminant removal were selected to meet or exceed EPA's standard limits for contaminants, as well as to avoid poisoning of: the catalysts utilized in making liquids from fuel gas the electrodes in fuel cells selective catalytic reduction (SCR) catalysts The objective of the NETL's ORD Warm Gas Cleanup project is to assist in achieving both DOE and EPA targets for trace contaminant capture from coal gasification, while preserving the high thermal efficiency of the IGCC system. To achieve this, both lab and pilot-scale research is underway to develop sorbents capable of removing the following contaminants from high temperature syngas (up to 550°F):

40

Thermal Comfort under Transient Metabolic and Dynamic Localized Airflow Conditions Combined with Neutral and Warm Ambient Temperatures  

E-Print Network (OSTI)

Human thermal environments constitute complex combinations of various interacting thermal factors. The transient and non-uniform nature of those thermal factors further increases the complexity of the thermal comfort problem. The conventional approach to the thermal comfort problem has been simplifying the problem and providing steady thermal environments which would satisfy the majority of the people in a given space. However, several problems emerged with this approach. People became finely tuned to the narrow range of conditions and developed expectations for the same conditions which made them uncomfortable when there were slight deviations from those conditions. Also, the steady approach didn't solve the comfort problem because, in practice, people move between spaces, and thermal conditions such as metabolic rate, surface temperatures, airflow speed and direction vary in a typical day. A human subject test was designed to determine the transient relationship between the people and their environments. In the first part, thermal perceptions of people were taken during various metabolic rate conditions. In the second and the third parts, transient conditions of different thermal factors were created. Various combinations of airflow frequencies, airflow location around the body, metabolic rate, and room temperatures were tested for their individual and interaction effects of providing thermal comfort. The concept of Localized Dynamic Airflow was proposed in which room airflow was simply redirected to different parts of the body with a varying airflow speed. Results showed that males and females respond differently to the thermal conditions. The room temperatures they found neutral were significantly different. People?s thermal comfort during transient metabolic conditions was similar to high metabolic conditions. This heightened response extended into the next ten minutes after the high metabolic conditions ended. Test results suggested that people tolerate higher temperatures during transient environmental conditions. The average response was for comfortable even during the high temperature (83F) and high metabolic rate (4 met) conditions. Low energy use of the localized dynamic airflow and the increased room temperatures has significant potential for monetary savings.

Ugursal, Ahmet

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Observed dependence of the water vapor and clear-sky greenhouse effect on sea surface temperature: Comparison with climate warming experiments  

SciTech Connect

This study presents a comparison of the water vapor and clear-sky greenhouse effect dependence on sea surface temperature for climate variations of different types. Firstly, coincident satellite observations and meteorological analyses are used to examine seasonal and interannual variations and to evaluate the performance of a general circulation model. Then, this model is used to compare the results inferred from the analysis of observed climate variability with those derived from global climate warming experiments. One part of the coupling between the surface temperature, the water vapor and the clear-sky greenhouse effect is explained by the dependence of the saturation water vapor pressure on the atmospheric temperature. However, the analysis of observed and simulated fields shows that the coupling is very different according to the type of region under consideration and the type of climate forcing that is applied to the Earth-atmosphere system. This difference, due to the variability of the vertical structure of the atmosphere, is analyzed in detail by considering the temperature lapse rate and the vertical profile of relative humidity. Our results suggest that extrapolating the feedbacks inferred from seasonal and short-term interannual climate variability to longer-term climate changes requires great caution. It is argued that our confidence in climate models` predictions would be increased significantly if the basic physical processes that govern the variability of the vertical structure of the atmosphere, and its relation to the large-scale circulation, were better understood and simulated. For this purpose, combined observational and numerical studies focusing on physical processes are needed. 44 refs., 9 figs., 5 tabs.

Bony, S.; Le Treut, H. [Ecole Normale Superieure, Paris (France); Duvel, J.P. [Ecole Polytechnique, Palaiseau (France)

1995-07-01T23:59:59.000Z

42

Minimization of steam requirements and enhancement of water-gas shift reaction with warm gas temperature CO2 removal  

SciTech Connect

The disclosure utilizes a hydroxide sorbent for humidification and CO.sub.2 removal from a gaseous stream comprised of CO and CO.sub.2 prior to entry into a water-gas-shift reactor, in order to decrease CO.sub.2 concentration and increase H.sub.2O concentration and shift the water-gas shift reaction toward the forward reaction products CO.sub.2 and H.sub.2. The hydroxide sorbent may be utilized for absorbtion of CO.sub.2 exiting the water-gas shift reactor, producing an enriched H.sub.2 stream. The disclosure further provides for regeneration of the hydroxide sorbent at temperature approximating water-gas shift conditions, and for utilizing H.sub.2O product liberated as a result of the CO.sub.2 absorption.

Siriwardane, Ranjani V; Fisher, II, James C

2013-12-31T23:59:59.000Z

43

Global warming continues in 1989  

SciTech Connect

Nineteen eight-nine ranks as one of the warmest years on record despite the chill of unusually cool water in the tropical Pacific. The continued robustness of the warming trend that began in the mid-1970s lends support to claims that an intensifying greenhouse effect is behind it all, although that case has not yet been made definitively. Even at the current rate of global warming it will take another 10 years or so to be confident that the greenhouse effect is with us. Although the global warming trend is consistent with an increasing contribution by the greenhouse effect, direct signs that the greenhouse effect is intensifying are still hard to come by in the temperature record. Greenhouse models agree that if that is happening, the temperature increase should be most pronounced around the Arctic. Alaska, northwestern Canada, and northern Siberia warmed sharply in the 1980s, but the region from eastern Canada through Greenland and into Scandinavia cooled markedly.

Kerr, R.A.

1990-02-02T23:59:59.000Z

44

Arrhenius and global warming  

SciTech Connect

Although concern about global atmospheric warming has intensified in recent decades, research into the greenhouse effect actually began in the 19th century. Fourier and other scientists appreciated that without heat-absorbing gases in the atmosphere, the temperature on the ground would be considerably lower, making life as we know it impossible. In 1896, the Swedish scientist Svante Arrhenius was the first to make a quantitative link between changes in carbon dioxide concentration and climate. Publication of his paper was celebrated at a recent Swedish workshop. 13 refs., 1 fig.

Uppenbrink, J.

1996-05-24T23:59:59.000Z

45

An Analysis of Tropical Ocean Diurnal Warm Layers  

Science Conference Proceedings (OSTI)

During periods of light surface wind, a warm stable layer forms at the ocean surface with a maximum sea surface temperature (SST) in the early afternoon. The diurnal SST amplitude (DSA) associated with these diurnal warm layers (DWLs) can reach ...

Hugo Bellenger; Jean-Philippe Duvel

2009-07-01T23:59:59.000Z

46

Mechanisms of Global Warming Impacts on Regional Tropical Precipitation  

Science Conference Proceedings (OSTI)

Mechanisms that determine the tropical precipitation anomalies under global warming are examined in an intermediate atmospheric model coupled with a simple land surface and a mixed layer ocean. To compensate for the warm tropospheric temperature, ...

Chia Chou; J. David Neelin

2004-07-01T23:59:59.000Z

47

Global Warming: Physics and Facts  

Science Conference Proceedings (OSTI)

This report contains papers on: A tutorial on global atmospheric energetics and the greenhouse effect; global climate models: what and how; comparison of general circulation models; climate and the earth`s radiation budget; temperature and sea level change; short-term climate variability and predictions; the great ocean conveyor; trace gases in the atmosphere: temporal and spatial trends; the geochemical carbon cycle and the uptake of fossil fuel CO{sub 2}; forestry and global warming; the physical and policy linkages; policy implications of greenhouse warming; options for lowering US carbon dioxide emissions; options for reducing carbon dioxide emissions; and science and diplomacy: a new partnership to protect the environment.

Levi, B.G. [Physics Today, New York, NY (United States); Hafemeister, D. [Committee on Foreign Relations (U.S. Senate), Washington, DC (United States); Scribner, R. [Georgetown Univ., Washington, DC (United States)] [eds.

1992-05-01T23:59:59.000Z

48

Global Warming: Physics and Facts  

Science Conference Proceedings (OSTI)

This report contains papers on: A tutorial on global atmospheric energetics and the greenhouse effect; global climate models: what and how; comparison of general circulation models; climate and the earth's radiation budget; temperature and sea level change; short-term climate variability and predictions; the great ocean conveyor; trace gases in the atmosphere: temporal and spatial trends; the geochemical carbon cycle and the uptake of fossil fuel CO{sub 2}; forestry and global warming; the physical and policy linkages; policy implications of greenhouse warming; options for lowering US carbon dioxide emissions; options for reducing carbon dioxide emissions; and science and diplomacy: a new partnership to protect the environment.

Levi, B.G. (Physics Today, New York, NY (United States)); Hafemeister, D. (Committee on Foreign Relations (U.S. Senate), Washington, DC (United States)); Scribner, R. (Georgetown Univ., Washington, DC (United States)) (eds.)

1992-01-01T23:59:59.000Z

49

Dynamic and Thermodynamic Regulation of Ocean Warming  

Science Conference Proceedings (OSTI)

The relative roles of clouds, surface evaporation, and ocean heat transport in limiting maximum sea surface temperatures (SSTs) in the western Pacific warm pool are investigated by means of simple and intermediate coupled oceanatmosphere models. ...

Tim Li; Timothy F. Hogan; C-P. Chang

2000-10-01T23:59:59.000Z

50

Heard Island global warming test  

SciTech Connect

In late January and early February 1991, an international team will conduct an experiment to test the possibility of measuring global warming in the world's oceans. The goal is to provide early indications of warming caused by the so-called greenhouse effect, the atmospheric buildup of CO{sub 2} and other gases. The method is based on the principle that acoustic energy travels through water between a source and receiver at a speed determined primarily by the water temperature. Thus acoustic travel time can be used as a temperature gauge. The idea is an outgrowth of suggestions made by Professor Walter Munk of the Scripps Institution of Oceanography and Professor Carl Wunsch of MIT in the early 1980s to use long-range underwater acoustic transmissions to measure changes in the heat content of the oceans.

Spindel, R.C. (Univ. of Washington, Seattle (USA))

1991-02-01T23:59:59.000Z

51

Variability and Trends of High Temperature, High Humidity, and Sultry Weather in the Warm Season in China during the Period 19612004  

Science Conference Proceedings (OSTI)

Using the daily maximum air temperature and mean humidity observations at 394 surface weather stations across China, the changes in the annual number of days of high temperature weather (HTW), high humidity weather (HHW), and sultry weather (STW) ...

Xiaohui Shi; Chungu Lu; Xiangde Xu

2011-01-01T23:59:59.000Z

52

Tropical Warm Pool Surface Heat Budgets and Temperature: Contrasts between1997/98 El Nio and 1998/99 La Nia  

Science Conference Proceedings (OSTI)

Seasonal to interannual variations of the net surface heating (FNET) and its relationship to sea surface temperature tendency (dTs/dt) in the tropical eastern Indian and western Pacific Oceans are studied for the period October 1997September ...

Shu-Hsien Chou; Ming-Dah Chou; Pui-King Chan; Po-Hsiung Lin; Kung-Hwa Wang

2004-05-01T23:59:59.000Z

53

Probing warm dense lithium by inelastic X-ray scattering  

E-Print Network (OSTI)

-26000, NWFP, Pakistan 9 Institut f¨ur Kernphysik, Technische Universit¨at Darmstadt, Schlo?gartenstr. 9-temperature superconductors and nuclear matter1 . Warm dense matter, defined by temperatures of a few electron volts

Loss, Daniel

54

Cold-blooded and warm-blooded  

NLE Websites -- All DOE Office Websites (Extended Search)

Cold-blooded and warm-blooded Cold-blooded and warm-blooded Name: Walter Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What is the fundamental difference between cold-blooded and warm- blooded creatures? I know that reptile blood is a bit different than mammal blood, but is that the difference or is it a difference in the other cells of the body? Replies: Warm blooded refers to an animals ability to maintain its body temperature at a constant level. Cold blooded animal's bodies stay at the temperature of environment around them (more or less). The mechanism by which a warm blooded animal does this is by generating heat, mostly through muscle movement (but by other biochemical processes too). An example of this is shivering. Warm blooded animals also cool themselves off by sweating, panting (and other ways). In mammals the hypothalamic area of the brain has much to do with controlling these reflex processes

55

Ultrafast Spectroscopy of Warm Dense Matter  

NLE Websites -- All DOE Office Websites (Extended Search)

Ultrafast Spectroscopy of Warm Dense Matter Print Ultrafast Spectroscopy of Warm Dense Matter Print Being neither solid, liquid, gas, nor plasma, warm dense matter (WDM) occupies a no man's land in the map of material phases. Its temperature can range between that of planetary cores (tens of thousands K) to that of stellar cores (hundreds of thousands K). Not only is it prevalent throughout the universe, it is relevant to inertial confinement fusion (ICF) and material performance under extreme conditions. However, because of its extreme temperatures and pressures, WDM tends to be drastically transient and thus difficult to study in the laboratory. Now, researchers have set up ultrafast x-ray absorption spectroscopy at the ALS to measure the electronic structure of WDMs, demonstrating that fast-changing electron temperatures of matter under extreme conditions can be determined with picosecond resolution.

56

Global Warming, Soot, Ice  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Warming, Soot, Ice Speaker(s): James Hansen Date: November 7, 2003 - 12:00pm Location: 90-3122 Irreversible "dangerous anthropogenic interference" with the climate system...

57

Warm Water Mass Formation  

Science Conference Proceedings (OSTI)

Poleward heat transport by the own implies warm Water mass formation, i.e., the retention by the tropical and subtropical ocean of some of its net radiant heat gain. Under what condition net heat retention becomes comparable to latent heat ...

G. T. Csanady

1984-02-01T23:59:59.000Z

58

Physics of Greenhouse Effect and Convection in Warm Oceans  

Science Conference Proceedings (OSTI)

Sea surface temperature (SST) in roughly 50% of the tropical Pacific Ocean is warm enough (SST > 300 K) to permit deep convection. This paper examines the effects of deep convection on the climatological mean vertical distributions of water vapor ...

A. K. Inamdar; V. Ramanathan

1994-05-01T23:59:59.000Z

59

Monitoring Global Climate Change: The Case of Greenhouse Warming  

Science Conference Proceedings (OSTI)

Recent record high temperatures and drought conditions in many regions of the United States have prompted heightened concern about whether these are early manifestations of the global green house warming projected by the major climate models. An ...

Fred B. Wood

1990-01-01T23:59:59.000Z

60

Supervised Learning Approaches to Classify Sudden Stratospheric Warming Events  

Science Conference Proceedings (OSTI)

Sudden stratospheric warmings are prominent examples of dynamical wavemean flow interactions in the Arctic stratosphere during Northern Hemisphere winter. They are characterized by a strong temperature increase on time scales of a few days and a ...

Christian Blume; Katja Matthes; Illia Horenko

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Modeling the Impact of Warming in Climate Change Economics  

E-Print Network (OSTI)

Any economic analysis of climate change policy requires some model that describes the impact of warming on future GDP and consumption. Most integrated assessment models (IAMs) relate temperature to the level of real GDP ...

Pindyck, Robert S.

62

On the Height of the Warm Core in Tropical Cyclones  

Science Conference Proceedings (OSTI)

The warm-core structure of tropical cyclones is examined in idealized simulations using the Weather Research and Forecasting (WRF) Model. The maximum perturbation temperature in a control simulation occurs in the midtroposphere (56 km), in ...

Daniel P. Stern; David S. Nolan

2012-05-01T23:59:59.000Z

63

Cloud Clusters and Superclusters over the Oceanic Warm Pool  

Science Conference Proceedings (OSTI)

Infrared satellite images of the oceanic warm-pool region (8OE-160W) have been objectively processed to reveal tropical cloud clusters with temperature colder than a given threshold. Cloud clusters span a somewhat lognormal distribution of ...

Brain E. Mapes; Robert A. Houze Jr.

1993-05-01T23:59:59.000Z

64

Global Warming Shifts the Monsoon Circulation, Drying South Asia  

Science Conference Proceedings (OSTI)

Monsoon rainfall over South Asia has decreased during the last 5 to 6 decades according to several sets of observations. Although sea surface temperature (SST) has risen across the Indo-Pacific warm pool during this period, the expected ...

H. Annamalai; Jan Hafner; K. P. Sooraj; P. Pillai

2013-05-01T23:59:59.000Z

65

Latitudinal distribution of the recent Arctic warming  

Science Conference Proceedings (OSTI)

Increasing Arctic temperature, disappearance of Arctic sea ice, melting of the Greenland ice sheet, sea level rise, increasing strength of Atlantic hurricanes are these impending climate catastrophes supported by observations? Are the recent data really unprecedented during the observational records? Our analysis of Arctic temperature records shows that the Arctic and temperatures in the 1930s and 1940s were almost as high as they are today. We argue that the current warming of the Arctic region is affected more by the multi-decadal climate variability than by an increasing concentration of carbon dioxide. Unfortunately, none of the existing coupled Atmosphere-Ocean General Circulation Models used in the IPCC 2007 cIimate change assessment is able to reproduce neither the observed 20th century Arctic cIimate variability nor the latitudinal distribution of the warming.

Chylek, Petr [Los Alamos National Laboratory; Lesins, Glen K [DALLHOUSIE UNIV.; Wang, Muyin [UNIV OF WASHINGTON

2010-12-08T23:59:59.000Z

66

LandOcean Warming Contrast over a Wide Range of Climates: Convective Quasi-Equilibrium Theory and Idealized Simulations  

Science Conference Proceedings (OSTI)

Surface temperatures increase at a greater rate over land than ocean in simulations and observations of global warming. It has previously been proposed that this landocean warming contrast is related to different changes in lapse rates over land ...

Michael P. Byrne; Paul A. OGorman

2013-06-01T23:59:59.000Z

67

Global Warming Mitigation Investments Optimized under Uncertainty  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Warming Mitigation Investments Optimized under Uncertainty Global Warming Mitigation Investments Optimized under Uncertainty Speaker(s): Hermann Held Date: July 9, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Thomas McKone The Copenhagen Accord (2009) recognizes that 'the increase in global temperature should be below 2 degrees Celsius' (compared to pre-industrial levels, '2° target'). In recent years, energy economics have derived welfare-optimal investment streams into low-emission energy mixes and associated costs. According to our analyses, auxiliary targets that are in line with the 2° target could be achieved at relatively low costs if energy investments were triggered rather swiftly. While such analyses assume 'perfect foresight' of a benevolent 'social planner', an accompanying suite of experiments explicitly

68

Warm coats, big thanks | Y-12 National Security Complex  

NLE Websites -- All DOE Office Websites (Extended Search)

Community / Warm coats, big thanks Community / Warm coats, big thanks Warm coats, big thanks Posted: January 9, 2014 - 2:23pm Over the last 12 years, Y-12ers have donated almost 7000 coats, sweaters and other winter wear to the Volunteer Ministry Center. As East Tennessee faces the coldest temperatures seen in a long while, Y-12ers have shown their volunteer spirit for the twelfth straight year by helping countless people stay warm thanks to another successful United Way Coat Drive to benefit the Volunteer Ministry Center. In total, the site donated 589 coats and winter wear items, 64 pairs of gloves, 47 scarves, and 66 hats and toboggans, which VMC makes available to the public through its Knoxville office. In addition, this year's efforts were expanded to include collection of toiletries for VMC. Y-12 collected more than 20 copy paper boxes full of

69

WARM SPRINGS, OREGON  

DOE Green Energy (OSTI)

and, as part of its charter, has the responsibility to evaluate and develop renewable energy resources for the Confederated Tribes of Warm Springs. WSPWE recently completed a multi-year-year wind resource assessment of tribal lands, beginning with the installation of wind monitoring towers on the Mutton Mountains site in 2003, and collection of on-site wind data is ongoing. The study identified the Mutton Mountain site on the northeastern edge of the reservation as a site with sufficient wind resources to support a commercial power project estimated to generate over 226,000 MWh per year. Initial estimates indicate that the first phase of the project would be approximately 79.5 MW of installed capacity. This Phase 2 study expands and builds on the previously conducted Phase 1 Wind Resource Assessment, dated June 30, 2007. In order to fully assess the economic benefits that may accrue to the Tribes through wind energy development at Mutton Mountain, a planning-level opinion of probable cost was performed to define the costs associated with key design and construction aspects of the proposed project. This report defines the Mutton Mountain project costs and economics in sufficient detail to allow the Tribes to either build the project themselves or contract with a developer under the most favorable terms possible for the Tribes.

Jim Manion; Michael Lofting; Wil Sando; Emily Leslie; Randy Goff

2009-03-30T23:59:59.000Z

70

Global Warming and Extreme Weather  

NLE Websites -- All DOE Office Websites (Extended Search)

Global Warming and Extreme Weather Global Warming and Extreme Weather Speaker(s): Michael Wehner Date: November 28, 2006 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Surabi Menon Extreme weather events can have serious impacts on human and ecological systems. Changes in the magnitude and frequency of extreme weather associated with changes in the mean climate are likely the most serious consequence of human induced global warming. Understanding what the future portends is vital if society hopes to adapt to the very different world that awaits. In this talk, we will exploit simple extreme value theory to make predictions about the late 21st century climate. Current work on the relationship between global warming and the hurricane cycle will also be presented. The bottom line is that events that are considered rare today

71

Authropogenic Warming in North Alaska?  

Science Conference Proceedings (OSTI)

Using permafrost boreholes, Lachenbruch and Marshall recently reported evidence for a 24C warming in North Alaska occurring at some undetermined time during the last century. Popular accounts suggest their findings are evidence for ...

Patrick J. Michaels; David E. Sappington; David E. Stooksbury

1988-09-01T23:59:59.000Z

72

The Psychology of Global Warming  

Science Conference Proceedings (OSTI)

The evidence in support of global warming and the lack of significant published evidence to the contrary provides an extraordinarily strong foundation for the scientific community's call for action on greenhouse gas emissions. However, public ...

Ben R. Newell; Andrew J. Pitman

2010-08-01T23:59:59.000Z

73

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Sector Coal Stocks: March 2012 Electric Power Sector Coal Stocks: March 2012 Stocks The seasonal winter drawdown of coal stocks was totally negated during the winter months this year due to low natural gas prices and unseasonably warm temperatures throughout the continental United States. In fact, March 2012 was the seventh straight month that coal stockpiles at power plants increased from the previous month. The largest driver of increasing stockpiles has been declining consumption of coal due to unseasonably warm weather and declining natural gas prices. Because much of the coal supplied to electric generators is purchased through long-term contracts, increasing coal stockpiles have proven difficult for electric power plant operators to handle. Some operators have inventories so high that they are refusing

74

Chemical And Isotopic Investigation Of Warm Springs Associated With Normal  

Open Energy Info (EERE)

Isotopic Investigation Of Warm Springs Associated With Normal Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Details Activities (3) Areas (1) Regions (0) Abstract: Thermal springs associated with normal faults in Utah have been analyzed for major cations and anions, and oxygen and hydrogen isotopes. Springs with measured temperatures averaging greater than 40°C are characterized by Na + K- and SO4 + Cl-rich waters containing 103 to 104 mg/l of dissolved solids. Lower temperature springs, averaging less than 40°C, are more enriched in Ca + Mg relative to Na + K. Chemical variations monitored through time in selected thermal springs are probably produced by

75

More data needed to support or disprove global warming theory  

SciTech Connect

Reports of global warming are prevalent in the popular press. With the exception of Scandinavia, no major energy tax laws have been passed to date. But environmental pressures may change this, and the change could have a profound effect on refiners. These are the views of Gerald T. Westbrook, of TSBV Consultants, Houston. Westbrook summarized recent global-warming research, and his position on the subject, at the National Petroleum Refiners Association annual meeting, held March 16--18, in San Antonio. The greenhouse effect is real, says Westbrook. It is important, however, to distinguish between the two major mechanisms of the greenhouse effect: natural warming and anthropogenic warming (changes in the concentration of greenhouse gases caused by man). Without greenhouse gases the earth`s equilibrium temperature would be {minus}18 C. The effect of the gases is to raise the equilibrium temperature to 15 C. In the early 1980s, computer models estimated global warming over the past 100 years to be as much as 2.3 C. By 1986, those estimates had been reduced to 1.0 C, and in 1988, a range of 0.63 {+-} 0.2 C was reported. In 1995, a report by the Intergovernmental Panel on Climate change (IPCC) cited a range of 0.3--0.6 C. Westbrook asserts that the earth`s motion anomalies--orbit eccentricity, axial tilt, and wobbles--lead to dramatic changes in insolation, and are the dominant force over the last 160,000 years.

1997-05-26T23:59:59.000Z

76

Arctic Ocean Warming Contributes to Reduced Polar Ice Cap  

Science Conference Proceedings (OSTI)

Analysis of modern and historical observations demonstrates that the temperature of the intermediate-depth (150900 m) Atlantic water (AW) of the Arctic Ocean has increased in recent decades. The AW warming has been uneven in time; a local 1C ...

Igor V. Polyakov; Leonid A. Timokhov; Vladimir A. Alexeev; Sheldon Bacon; Igor A. Dmitrenko; Louis Fortier; Ivan E. Frolov; Jean-Claude Gascard; Edmond Hansen; Vladimir V. Ivanov; Seymour Laxon; Cecilie Mauritzen; Don Perovich; Koji Shimada; Harper L. Simmons; Vladimir T. Sokolov; Michael Steele; John Toole

2010-12-01T23:59:59.000Z

77

Warming Trends in the Arctic from Clear Sky Satellite Observations  

Science Conference Proceedings (OSTI)

Satellite thermal infrared data on surface temperatures provide pan-Arctic coverage from 1981 to 2001 during cloud-free conditions and reveal large warming anomalies in the 1990s compared to the 1980s and regional variability in the trend. The ...

Josefino C. Comiso

2003-11-01T23:59:59.000Z

78

Global hydrological cycle response to rapid and slow global warming  

Science Conference Proceedings (OSTI)

We analyze the response of global water vapor to global warming in a series of fully coupled climate model simulations. We find that a roughly 7% per Kelvin rate of increase of water vapor with global surface temperature is robust only for rapid ...

Larissa Back; Karen Russ; Zhengyu Liu; Kuniaki Inoue; Jiaxu Zhang; Bette Otto-Bliesner

79

Sensitivity of Tropical Tropospheric Temperature to Sea Surface Temperature Forcing  

Science Conference Proceedings (OSTI)

During El Nio, there are substantial tropospheric temperature anomalies across the entire tropical belt associated with the warming of sea surface temperatures (SSTs) in the central and eastern Pacific. The quasi-equilibrium tropical circulation ...

Hui Su; J. David Neelin; Joyce E. Meyerson

2003-05-01T23:59:59.000Z

80

Tropical Cyclogenesis Factors in a Warming Climate  

E-Print Network (OSTI)

Understanding the underlying causes of tropical cyclone formation is crucial to predicting tropical cyclone behavior in a warming environment, given the Earth's current warming trend. This study examines two sets of simulations from the National Center for Atmospheric Research (NCAR) Community Atmosphere Model version 3.1 (CAM3): one with aerosol forcings and one without. We looked at how four factors known to be important to tropical cyclone formation vary as carbon dioxde and the ensuing temperature changes increase to very high levels. These factors include Maximum Potential Intensity (MPI), mid-tropospheric moisture content, 200-850 mb vertical wind shear, and 850 mb absolute vorticity. We considered different representations of mid-tropospheric moisture by examining both relative humidity and chi, a non-dimensional measure of the saturation entropy deficit at 600 mb. We also looked at different combinations of these factors, including several variations of a Genesis Potential Index (GPI) and an incubation parameter, gamma, that is related to the length of time required to saturate the middle troposphere and aid tropical cyclogenesis. Higher MPI, lower saturation deficits and higher relative humidity, lower wind shear, and higher absolute vorticity all act to enhance the GPI and lower the incubation time, meaning larger environmental support for tropical cyclone development and intensification. In areas where tropical cyclone development is prevalent today, we found that shear generally decreased, but MPI decreased, absolute vorticity decreased, and the saturation deficit increases. Thus, in today's prevalent tropical cyclone regions, conditions become less favorable for development and intensification as the climate warms. On the other hand, genesis regions tend to push northward into the subtropics, as conditions become much more favorable for development up to ~40 degrees North due to both decreased wind shear and much higher MPI values.

Cathey, Stephen Christopher

2011-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Policy implications of greenhouse warming  

SciTech Connect

Contents: background; the greenhouse gases and their effects; policy framework; adaptation; mitigation; international considerations; findings and conclusions; recommendations; questions and answers about greenhouse warming; background information on synthesis panel members and professional staff; and membership lists for effects, mitigation, and adaptation panels.

1991-01-01T23:59:59.000Z

82

It's Not Too Late to Change Global Warming's Course - NERSC Science News  

NLE Websites -- All DOE Office Websites (Extended Search)

It's Not Too Late to It's Not Too Late to Change Global Warming's Course It's Not Too Late to Change Global Warming's Course Simulations Show That Cuts in Greenhouse Gas Emissions Would Save Arctic Ice, Reduce Sea Level Rise October 27, 2009 | Tags: Climate Research mitigation1.jpg Computer simulations show the extent that average air temperatures at Earth's surface could warm by 2080-2099 compared to 1980-1999, if (top) greenhouse gases emissions continue to climb at current rates, or if (middle) society cuts emissions by 70 percent. In the latter case, temperatures rise by less than 2°C (3.6°F) across nearly all of Earth's populated areas (the bottom panel shows warming averted). However, unchecked emissions could lead to warming of 3°C (5.4°F) or more across parts of Europe, Asia, North America, and Australia. (Image: Geophysical

83

Decadal Fluctuations in Planetary Wave Forcing Modulate Global Warming in Late Boreal Winter  

Science Conference Proceedings (OSTI)

The warming trend in global surface temperatures over the last 40 yr is clear and consistent with anthropogenic increases in greenhouse gases. Over the last 2 decades, this trend appears to have accelerated. In contrast to this general behavior, ...

Judah Cohen; Mathew Barlow; Kazuyuki Saito

2009-08-01T23:59:59.000Z

84

Understanding LandSea Warming Contrast in Response to Increasing Greenhouse Gases. Part I: Transient Adjustment  

Science Conference Proceedings (OSTI)

Climate model simulations consistently show that surface temperature over land increases more rapidly than over sea in response to greenhouse gas forcing. The enhanced warming over land is not simply a transient effect caused by the landsea ...

Buwen Dong; Jonathan M. Gregory; Rowan T. Sutton

2009-06-01T23:59:59.000Z

85

Constraining the Ratio of Global Warming to Cumulative CO2 Emissions Using CMIP5 Simulations  

Science Conference Proceedings (OSTI)

The ratio of warming to cumulative emissions of carbon dioxide has been shown to be approximately independent of time and emissions scenarios and directly relates emissions to temperature. It is therefore a potentially important tool for climate ...

Nathan P. Gillett; Vivek K. Arora; Damon Matthews; Myles R. Allen

2013-09-01T23:59:59.000Z

86

Constraining the ratio of global warming to cumulative CO2 emissions using CMIP5 simulations  

Science Conference Proceedings (OSTI)

The ratio of warming to cumulative emissions of carbon dioxide has been shown to be approximately independent of time and emissions scenario, and directly relates emissions to temperature. It is therefore a potentially important tool for climate ...

Nathan P. Gillett; Vivek K. Arora; Damon Matthews; Myles R. Allen

87

Changes in Interannual Variability and Decadal Potential Predictability under Global Warming  

Science Conference Proceedings (OSTI)

Global warming will result in changes in mean temperature and precipitation distributions and is also expected to affect interannual and longer time-scale internally generated variability as a consequence of changes in climate processes and ...

G. J. Boer

2009-06-01T23:59:59.000Z

88

Mechanisms for the Interannual Variability of SST in the East Pacific Warm Pool  

Science Conference Proceedings (OSTI)

In comparison with the western and equatorial Pacific Ocean, relatively little is known about the east Pacific warm pool (EPWP). Observations indicate that the interannual variability of sea surface temperature (SST) in the EPWP is highly ...

Kristopher B. Karnauskas; Antonio J. Busalacchi

2009-03-01T23:59:59.000Z

89

Pre- and Post-1997/98 Westerly Wind Events and Equatorial Pacific Cold Tongue Warming  

Science Conference Proceedings (OSTI)

Westerly wind events (WWEs) in the western equatorial Pacific have previously been shown to cause significant warming of sea surface temperature (SST) in the eastern equatorial Pacific. Observational statistics compiled during and prior to the ...

D. E. Harrison; A. M. Chiodi

2009-02-01T23:59:59.000Z

90

Mechanisms for Tropical Tropospheric Circulation Change in Response to Global Warming  

Science Conference Proceedings (OSTI)

The annual-mean tropospheric circulation change in global warming is studied by comparing the response of an atmospheric general circulation model (GCM) to a spatial-uniform sea surface temperature (SST) increase (SUSI) with the response of a ...

Jian Ma; Shang-Ping Xie; Yu Kosaka

2012-04-01T23:59:59.000Z

91

Increased Runoff from Melt from the Greenland Ice Sheet: A Response to Global Warming  

Science Conference Proceedings (OSTI)

The authors attribute significantly increased Greenland summer warmth and Greenland Ice Sheet melt and runoff since 1990 to global warming. Southern Greenland coastal and Northern Hemisphere summer temperatures were uncorrelated between the 1960s ...

Edward Hanna; Philippe Huybrechts; Konrad Steffen; John Cappelen; Russell Huff; Christopher Shuman; Tristram Irvine-Fynn; Stephen Wise; Michael Griffiths

2008-01-01T23:59:59.000Z

92

Simulation of the Tropical Pacific Warm Pool with the NCAR Climate System Model  

Science Conference Proceedings (OSTI)

The simulation of the tropical western Pacific warm pool is explored with the NCAR Climate System Model (CSM). The simulated sea surface temperatures in the Pacific basin have biases that are similar to other coupled model simulations in this ...

J. T. Kiehl

1998-06-01T23:59:59.000Z

93

Interannual Variability in Warm Water Volume Transports in the Equatorial Pacific during 199399  

Science Conference Proceedings (OSTI)

Previous studies have indicated that the volume of warm water (WWV) in the equatorial Pacific is intrinsically related to the dynamics of the El NioSouthern Oscillation (ENSO) cycle. A gridded subsurface temperature dataset, which incorporates ...

Christopher S. Meinen; Michael J. McPhaden

2001-05-01T23:59:59.000Z

94

Different Pacific Ocean Warming Decaying Types and Northwest Pacific Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

This study focuses on statistical analysis of anomalous TC activities and the physical mechanisms behind these anomalies. Different patterns of decaying of the warm sea surface temperature anomaly (SSTA) over the equatorial central-eastern Pacific ...

Yao Ha; Zhong Zhong; Xiuqun Yang; Yuan Sun

95

Surface Temperature of IGUs  

NLE Websites -- All DOE Office Websites (Extended Search)

117 117 Surface Temperatures of Insulated Glazing Units: Infrared Thermography Laboratory Measurements Brent T. Griffith, Daniel Türler, and Dariush Arasteh Building Technologies Program Environmental Energy Technologies Division Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720 USA Fax: 510-486-6046, email: D_Arasteh@lbl.gov Abstract Data are presented for the distribution of surface temperatures on the warm-side surface of seven different insulated glazing units. Surface temperatures are measured using infrared thermography and an external referencing technique. This technique allows detailed mapping of surface temperatures that is non-intrusive. The glazings were placed between warm and cold environmental chambers that were operated at conditions

96

Prediction of domestic warm-water consumption  

Science Conference Proceedings (OSTI)

The paper presents methodologies able to predict dynamic warm water consumption in district heating systems, using time-series analysis. A simulation model according to the day of a week has been chosen for modeling the domestic warm water consumption ... Keywords: autoregressive model, district heating systems, domestic warm water, prediction, simulation, time series models

Elena Serban; Daniela Popescu

2008-12-01T23:59:59.000Z

97

Hydrological consequences of global warming  

Science Conference Proceedings (OSTI)

The 2007 Intergovernmental Panel for Climate Change indicates there is strong evidence that the atmospheric concentration of carbon dioxide far exceeds the natural range over the last 650,000 years, and this recent warming of the climate system is unequivocal, resulting in more frequent extreme precipitation events, earlier snowmelt runoff, increased winter flood likelihoods, increased and widespread melting of snow and ice, longer and more widespread droughts, and rising sea level. The effects of recent warming has been well documented and climate model projections indicate a range of hydrological impacts with likely to very likely probabilities (67 to 99 percent) of occurring with significant to severe consequences in response to a warmer lower atmosphere with an accelerating hydrologic cycle.

Miller, Norman L.

2009-06-01T23:59:59.000Z

98

Warm or Steaming Ground | Open Energy Information  

Open Energy Info (EERE)

Warm or Steaming Ground Warm or Steaming Ground Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Warm or Steaming Ground Dictionary.png Warm or Steaming Ground: An area where geothermal heat is conducted to the earth's surface, warming the ground and sometimes causing steam to form when water is present. Other definitions:Wikipedia Reegle Modern Geothermal Features Typical list of modern geothermal features Hot Springs Fumaroles Warm or Steaming Ground Mudpots, Mud Pools, or Mud Volcanoes Geysers Blind Geothermal System Steam rising from the ground at Eldvorp, a 10 km row of craters, in Southwestern Iceland. http://www.visiticeland.com/SearchResults/Attraction/eldvorp Warm or steaming ground is often an indicator of a geothermal system beneath the surface. In some cases a geothermal system may not show any

99

Global warming and global dioxide emission: An empirical study  

Science Conference Proceedings (OSTI)

In this paper, the dynamic relationship between global surface temperature (global warming) and global carbon dioxide emission (CO{sub 2}) is modelled and analyzed by causality and spectral analysis in the time domain and frequency domain, respectively. Historical data of global CO{sub 2} emission and global surface temperature anomalies over 129 years from 1860-1988 are used in this study. The causal relationship between the two phenomena is first examined using the Sim and Granger causality test in the time domain after the data series are filtered by ARIMA models. The Granger causal relationship is further scrutinized and confirmed by cross-spectral and multichannel spectral analysis in the frequency domain. The evidence found from both analyses proves that there is a positive causal relationship between the two variables. The time domain analysis suggests that Granger causality exists between global surface temperature and global CO{sub 2} emission. Further, CO{sub 2} emission causes the change in temperature. The conclusions are further confirmed by the frequency domain analysis, which indicates that the increase in CO{sub 2} emission causes climate warming because a high coherence exists between the two variables. Furthermore, it is proved that climate changes happen after an increase in CO{sub 2} emission, which confirms that the increase in CO{sub 2} emission does cause global warming. 27 refs., 10 figs., 5 tabs.

Linyan Sun [Xian Jiaotong Univ., Shaanxi (China); Wang, M. [Saint Mary`s Univ., Halifax, Nova Scotia (Canada)

1996-04-01T23:59:59.000Z

100

Global Warming: some back-of-the-envelope calculations  

E-Print Network (OSTI)

We do several simple calculations and measurements in an effort to gain understanding of global warming and the carbon cycle. Some conclusions are interesting: (i) There has been global warming since the end of the "little ice age" around 1700. There is no statistically significant evidence of acceleration of global warming since 1940. (ii) The increase of CO_2 in the atmosphere, beginning around 1940, accurately tracks the burning of fossil fuels. Burning all of the remaining economically viable reserves of oil, gas and coal over the next 150 years or so will approximately double the pre-industrial atmospheric concentration of CO_2. The corresponding increase in the average temperature, due to the greenhouse effect, is quite uncertain: between 1.3 and 4.8K. This increase of temperature is (partially?) offset by the increase of aerosols and deforestation. (iii) Ice core samples indicate that the pre-historic CO_2 concentration and temperature are well correlated. We conclude that changes in the temperatures o...

Fabara, C

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

100 LPW 800 Lm Warm White LED  

Science Conference Proceedings (OSTI)

An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramic? and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumileds?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

Decai Sun

2010-10-31T23:59:59.000Z

102

Global warming and biological diversity  

SciTech Connect

This book is based on presentations given at the World Wildlife Fund's Conference on Consequences of the Greenhouse Effect for Biological Diverisity in 1988, and includes updated literature citations. The general topics covered in the book include the following: overview; summary of past responses of plants to climatic change; general ecological and physiological responses; ecosystems in 4 specific regions (arctic marine, Alaskan North Slope, NW US forests, and Mediterranean); global warming's implications for conservation. Ideas and data from many ecosystems and information about the relationships between biodiversity and climatic change are brought together with a balance of factual information and defensible scientific prognostication.

Peters, R.L.; Lovejoy, T.E. (eds.)

1992-01-01T23:59:59.000Z

103

Potential bias of model projected greenhouse warming in irrigated regions  

SciTech Connect

Atmospheric general circulation models (GCMs) used to project climate responses to increased CO{sub 2} generally omit irrigation of agricultural land. Using the NCAR CAM3 GCM coupled to a slab-ocean model, we find that inclusion of an extreme irrigation scenario has a small effect on the simulated temperature and precipitation response to doubled CO{sub 2} in most regions, but reduced warming by as much as 1 C in some agricultural regions, such as Europe and India. This interaction between CO{sub 2} and irrigation occurs in cases where agriculture is a major fraction of the land surface and where, in the absence of irrigation, soil moisture declines are projected to provide a positive feedback to temperature change. The reduction of warming is less than 25% of the temperature increase modeled for doubled CO{sub 2} in most regions; thus greenhouse warming will still be dominant. However, the results indicate that land use interactions may be an important component of climate change uncertainty in some agricultural regions. While irrigated lands comprise only {approx}2% of the land surface, they contribute over 40% of global food production. Climate changes in these regions are therefore particularly important to society despite their relatively small contribution to average global climate.

Lobell, D; Bala, G; Bonfils, C; Duffy, P

2006-04-27T23:59:59.000Z

104

From the warm magnetized atomic medium to molecular clouds  

E-Print Network (OSTI)

{It has recently been proposed that giant molecular complexes form at the sites where streams of diffuse warm atomic gas collide at transonic velocities.} {We study the global statistics of molecular clouds formed by large scale colliding flows of warm neutral atomic interstellar gas under ideal MHD conditions. The flows deliver material as well as kinetic energy and trigger thermal instability leading eventually to gravitational collapse.} {We perform adaptive mesh refinement MHD simulations which, for the first time in this context, treat self-consistently cooling and self-gravity.} {The clouds formed in the simulations develop a highly inhomogeneous density and temperature structure, with cold dense filaments and clumps condensing from converging flows of warm atomic gas. In the clouds, the column density probability density distribution (PDF) peaks at $\\sim 2 \\times 10^{21} \\psc$ and decays rapidly at higher values; the magnetic intensity correlates weakly with density from $n \\sim 0.1$ to $10^4 \\pcc$, and then varies roughly as $n^{1/2}$ for higher densities.} {The global statistical properties of such molecular clouds are reasonably consistent with observational determinations. Our numerical simulations suggest that molecular clouds formed by the moderately supersonic collision of warm atomic gas streams.}

P. Hennebelle; R. Banerjee; E. Vazquez-Semadeni; R. Klessen; E. Audit

2008-05-09T23:59:59.000Z

105

Motor vehicles and global warming  

SciTech Connect

Energy use in transportation is one of the contributors to the concern over global warming. The primary greenhouse gases released by the transportation sector are carbon dioxide and chlorofluorocarbons. When all greenhouse gases are considered, CO{sub 2} emissions from the operation of highway vehicles worldwide represent about 4.7% of global warming enhancement. CO{sub 2} emissions from U.S. highway vehicles along represent about 2 to 2.5% of worldwide greenhouse gases. The use of CFCs in automotive air conditioning, in blowing foams for seats and padding and in the manufacture of electronic circuit boards accounted for 15% of the global usage of CFC-12 in 1985 according to the U.S. EPA. The Motor Vehicle Manufacturers Association supports the phase-out of CFC use provided that safe substitutes are available and that adequate lead time is allowed for.They suggest that reduction of greenhouse gases would require planning on a global scope to be effective. One alternative they suggest for further study is a carbon fee for reducing emissions of carbon dioxide. This fee would be levied on each type of fossil fuel, proportional to its carbon content per unit of energy.

Halberstadt, M.L.

1990-03-01T23:59:59.000Z

106

Ultrafast Spectroscopy of Warm Dense Matter  

NLE Websites -- All DOE Office Websites (Extended Search)

of planet formation and structures as well as the evolution of an imploding inertial fusion capsule depends on our understanding of matter in the complex warm dense matter...

107

Hotel energy use contributes to global warming.  

E-Print Network (OSTI)

??Before learning about the consequences of global warming and the efforts hotels are making to reverse the effects, it is important to get a better (more)

Faja, Christine

2007-01-01T23:59:59.000Z

108

Myth or reality; Some data dispute global warming theory  

SciTech Connect

Science in March 1990 published a National Aeronautics and Space Administration (NASA) analysis of data collected from 1979 through 1988 by the TIROS-N series of weather satellites. The data include the most precise global temperature measurements ever taken. The study found no evidence of global warming from the greenhouse effect during that period. If anything, the short-term trend was toward cooling, since the average of the first five years, 1979 to 1983, was warmer than the most recent five. The NASA findings can be added to a burgeoning body of scientific data seriously questioning the contention that Earth is threatened by global warming resulting from a greenhouse effect primarily instigated by man. Ironically, James Hansen, director of NASA's Goddard Institute for Space Studies, has been the nation's most outspoken advocate of the thesis that, because concentrations of carbon dioxide (CO{sub 2}) and other greenhouse gases, such as methane, have risen by 30 percent in the last 100 years and are expected to rise another 40 percent by 2050, the planet eventually will warm by about 4 degrees Celsius. According to this hypothesis, the warming will cause major coastal flooding, inland droughts and sundry other catastrophes. But Reid Bryson, founder of the Institute for Environmental Studies at the University of Wisconsin, contends Hansen's thesis cannot be accepted, and Michael Schlesinger, professor of meteorology at the University of Illinois, asserts the chance that global warming has already been detected is pretty close to zero.

Lee, R.W.

1991-04-01T23:59:59.000Z

109

[Global warming and the running average sunspot number  

SciTech Connect

It has been reported in your pages that the Bush administration`s views and actions regarding how or whether to react to possible global warming due to greenhouse gases have been influenced by the so-called Marshall report. This unrefereed report, released by the George C. Marshall Institute, had as its principal conclusion the finding that the 0.5{degree} C global warming of the last century was mostly due to solar variability and, thus, the greenhouse warming of the 21st century can be expected to be a relatively small l{degree} C or so. The authors support this finding by comparing the 33-year running average sunspot number with the trend in annual average global temperature and noting the parallel between the two, especially during the 1940s--1960s when the temperature trend was downward. Subsequent letters to Science debated the merits of this and other conclusions contained in the report. I now present additional technical evidence which shows that, quite aside from the question of whether the data presented in the report support its conclusions, the actual figure on which the above conclusion is based is in error.

Fernau, M.E.

1994-05-01T23:59:59.000Z

110

Greenhouse warming and the tropical water budget  

SciTech Connect

The present work takes issue with some of the theses of Lindzen's (1990) work on global warming, arguing in particular that Lindzen's work is hampered by the use of oversimplified models. Lindzen then presents a detailed reply to these arguments, emphasizing the fundamental importance of the upper tropospheric water-vapor budget to the question of global warming. 26 refs.

Betts, A.K.

1990-10-01T23:59:59.000Z

111

The Sinking of Warm-Core Rings  

Science Conference Proceedings (OSTI)

Intense cooling of a warm-core ring or warming of the fluids surrounding a ring can increase the density of that ring relative to the surrounding fluids. This increase in density can cause the ring to sink under the surrounding fluids. A simple ...

Rick Chapman; Doron Nof

1988-04-01T23:59:59.000Z

112

NERSC Calculations Provide Independent Confirmation of Global Land Warming  

NLE Websites -- All DOE Office Websites (Extended Search)

Calculations Calculations Provide Independent Confirmation of Global Land Warming Since 1901 NERSC Calculations Provide Independent Confirmation of Global Land Warming Since 1901 September 9, 2013 | Tags: Climate Research, Hopper Contact: Jon Bashor, jbashor@lbl.gov, 510-486-5849 campo.jpg These maps show the changes in air temperatures over land as measured using thermometers (left side) and as calculated by the 20th Century Reanalysis project (left side). While more than 80 percent of the observed variation is captured by the computer model, the results show interesting differences in some regions such as the midwestern United States, Argentina and eastern Brazil. The differences may be due previously unrecognized issues with the pressure observations, variations in land use and land cover over time,

113

A Climatology of Nocturnal Warming Events Associated with Cold-Frontal Passages in Oklahoma  

Science Conference Proceedings (OSTI)

A sudden increase in temperature during the nighttime hours accompanies the passages of some cold fronts. In some cold frontassociated warming events, the temperature can rise by as much as 10C and can last from a few minutes to several hours. ...

Anita Nallapareddy; Alan Shapiro; Jonathan J. Gourley

2011-10-01T23:59:59.000Z

114

Ocean Heat Transport and Water Vapor Greenhouse in a Warm Equable Climate: A New Look at the Low Gradient Paradox  

Science Conference Proceedings (OSTI)

The authors study the role of ocean heat transport (OHT) in the maintenance of a warm, equable, ice-free climate. An ensemble of idealized aquaplanet GCM calculations is used to assess the equilibrium sensitivity of global mean surface temperature ...

Brian E. J. Rose; David Ferreira

2013-03-01T23:59:59.000Z

115

Ocean Warming effect on Surface Gravity Wave Climate Change for the end of the 21st Century  

Science Conference Proceedings (OSTI)

Surface wind (U10) and significant wave height (Hs) response to global warming are investigated using a coupled atmosphere-wave model by perturbing the sea surface temperatures (SSTs) with anomalies generated by WGCM CMIP-3 coupled models that use ...

Yalin Fan; Isaac M. Held; Shian-Jiann Lin; Xiaolan L. Wang

116

Ocean Warming Effect on Surface Gravity Wave Climate Change for the End of the Twenty-First Century  

Science Conference Proceedings (OSTI)

Surface wind (U10) and significant wave height (Hs) response to global warming are investigated using a coupled atmospherewave model by perturbing the sea surface temperatures (SSTs) with anomalies generated by the Working Group on Coupled ...

Yalin Fan; Isaac M. Held; Shian-Jiann Lin; Xiaolan L. Wang

2013-08-01T23:59:59.000Z

117

Differences in Atmospheric Circulation between the Development of Weak and Strong Warm Events in the Southern Oscillation  

Science Conference Proceedings (OSTI)

In this study temporal and spatial aspects of El Nio (warm event) development are explored by comparing composite sequences of sea level pressure (SLP), surface wind, and sea surface temperature (SST) anomalies leading into strong and weak ...

David J. Stephens; Michael J. Meuleners; Harry van Loon; Malcolm H. Lamond; Nicola P. Telcik

2007-05-01T23:59:59.000Z

118

Transient Climate Simulations with the HadGEM1 Climate Model: Causes of Past Warming and Future Climate Change  

Science Conference Proceedings (OSTI)

The ability of climate models to simulate large-scale temperature changes during the twentieth century when they include both anthropogenic and natural forcings and their inability to account for warming over the last 50 yr when they exclude ...

Peter A. Stott; Gareth S. Jones; Jason A. Lowe; Peter Thorne; Chris Durman; Timothy C. Johns; Jean-Claude Thelen

2006-06-01T23:59:59.000Z

119

In situ warming and soil venting to enhance the biodegradation of JP-4 in cold climates: A critical study and analysis. Master`s thesis  

Science Conference Proceedings (OSTI)

In cold climates, bioremediation is limited to the summer when soil temperatures are sufficient to support microbial growth. Laboratory studies directly correlate increased biodegradation rates with temperature. By raising soil temperatures, in situ jet fuel remediation can be accelerated which was shown by a bioventing project conducted in 1991 at Eielson AFB, Alaska, where three soil warming techniques were used. This study critically analyzes the project data to determine its effectiveness in enhancing biodegradation. This study also models the temperature-biodegradation relationship at the test plots using the van`t Hoff-Arrhenius equation. Using paired oxygen consumption rates and temperatures, application of the equation was valid only for the warm water and passive warming plots. This study demonstrates that bioremediation is feasible in cold climates and can be enhanced by soil warming. Soil warming can significantly decrease remediation time with acceptable cost increases.

Cox, R.D.

1995-12-01T23:59:59.000Z

120

Moored Observations of Precipitation Temperature  

Science Conference Proceedings (OSTI)

Direct observations of precipitation temperature were made from a surface buoy deployed for four months in the western Pacific warm pool. The observed rain droplet temperatures are equal to the wet-bulb temperature to within the measured wet-bulb ...

Steven P. Anderson; Alan Hinton; Robert A. Weller

1998-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

A Possible Effect of an Increase in the Warm-Pool SST on the Magnitude of El Nio Warming  

Science Conference Proceedings (OSTI)

El Nio warming corresponds to an eastward extension of the western Pacific warm pool; one thus naturally wonders whether an increase in the warm pool SST will result in stronger El Nios. This question, though elementary, has not drawn much ...

De-Zheng Sun

2003-01-01T23:59:59.000Z

122

Global Warming: A Reduced Threat?  

Science Conference Proceedings (OSTI)

One popular and apocalyptic vision of the world influenced by increasing concentrations of infrared-absorbing trace gases is that of ecological disaster brought about by rapidly rising temperatures, sea level, and evaporation rates. This vision ...

Patrick J. Michaels; David E. Stooksbury

1992-10-01T23:59:59.000Z

123

The Dynamics of Warm and Cold Climates  

Science Conference Proceedings (OSTI)

The atmospheric dynamics of five different climate simulations with the GISS GCM are compared to investigate the changes that occur as climate warms or cools. There are two ice age simulations, the current and doubled CO2 climates, and a ...

D. Rind

1986-01-01T23:59:59.000Z

124

Scaling Potential Evapotranspiration with Greenhouse Warming  

Science Conference Proceedings (OSTI)

Potential evapotranspiration (PET) is a supply-independent measure of the evaporative demand of a terrestrial climate, of basic importance in climatology, hydrology, and agriculture. Future increases in PET from greenhouse warming are often cited ...

Jacob Scheff; Dargan M. W. Frierson

125

Numerical Simulation of Sudden Stratospheric Warmings  

Science Conference Proceedings (OSTI)

A mechanistic, quasi-geostrophic, semi-spectral model with a self-consistent calculation of the mean zonal flow fields is used to numerically simulate sudden stratospheric warmings generated by a single zonal harmonic (m) planetary wave. The ...

Mark R. Schoeberl; Darrell F. Strobel

1980-01-01T23:59:59.000Z

126

Initial Precipitation Formation in Warm Florida Cumulus  

Science Conference Proceedings (OSTI)

The microphysical processes that lead to the development of precipitation in small, warm cumulus are examined using data from the Small Cumulus Microphysics Study near Cape Canaveral, Florida. Aircraft measurements are used to determine the ...

Neil F. Laird; Harry T. Ochs III; Robert M. Rauber; L. Jay Miller

2000-11-01T23:59:59.000Z

127

The Tropical Warm Pool International Cloud Experiment  

Science Conference Proceedings (OSTI)

A comprehensive dataset describing tropical cloud systems and their environmental setting and impacts has been collected during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) and Aerosol and Chemical Transport in Tropical ...

Peter T. May; James H. Mather; Geraint Vaughan; Keith N. Bower; Christian Jakob; Greg M. McFarquhar; Gerald G. Mace

2008-05-01T23:59:59.000Z

128

Response to Skeptics of Global Warming  

Science Conference Proceedings (OSTI)

The majority of the scientific community involved in climate research is convinced of the reality of a current and future global warming due to the greenhouse effect, a change that must be largely caused by human activities. However, a minority ...

William W. Kellogg

1991-04-01T23:59:59.000Z

129

Separating signal and noise in climate warming  

NLE Websites -- All DOE Office Websites (Extended Search)

11162011 | NR-11-11-03 Separating signal and noise in climate warming Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly A National Oceanic and Atmospheric...

130

Signal and noise in global warming detection. Final report  

SciTech Connect

The specific objectives of this study were the following: (1) What is the expected sampling error and bias incurred in estimation of the global average temperature from a finite number of point gauges? (2) What is the best one can do by optimally arranging N point gauges, how can one make best use of existing data at N point gauges by optimally weighting them? (3) What is a good estimation of the signal of global warming based upon simple models of the climate system? (4) How does one develop an optimal signal detection technique from the knowledge of signal and noise?

North, G.R.

1998-11-01T23:59:59.000Z

131

Indirect Drive Warm-Loaded Ignition Target Design  

SciTech Connect

This document summarizes the Indirect Drive Warm-Loaded Ignition Target design. These targets either use a fill tube or the capsule is strong enough to withstand the room temperature pressure of the DT fuel. Only features that affect the design of the NIF Cryogenic Target System (NCTS) are presented. The design presented is the current thinking and may evolve further. The NCTS should be designed to accommodate a range of targets and target scales, as described here. The interface location between the target and the NCTS cryostat is at the target base / gripper joint, the tamping gas gland/gland joint, and the electrical plug/receptacle joint.

Bernat, T P; Gibson, C R

2004-09-03T23:59:59.000Z

132

Dynamical instabilities of warm npe matter: {delta} meson effects  

Science Conference Proceedings (OSTI)

The effects of {delta} mesons on the dynamical instabilities of cold and warm nuclear and stellar matter at subsaturation densities are studied in the framework of relativistic mean-field hadron models (NL3, NL{rho}, and NL{rho}{delta}) with the inclusion of the electromagnetic field. The distillation effect and the spinodals for all the models considered are discussed. The crust-core transition density and pressure are obtained as a function of temperature for {beta}-equilibrium matter with and without neutrino trapping. An estimation of the size of the clusters formed in the nonhomogeneous phase and the corresponding growth rates are made. It is shown that cluster sizes increase with temperature. The effects of the {delta} meson on the instability region are larger for low temperatures, very asymmetric matter, and densities close to the spinodal surface. It increases the distillation effect above {approx}0.4{rho}{sub 0} and has the opposite effect below that density.

Pais, Helena; Santos, Alexandre; Providencia, Constanca [Centro de Fisica Computacional, Department of Physics, University of Coimbra, 3004-516 Coimbra (Portugal)

2009-10-15T23:59:59.000Z

133

Television news coverage of global warming  

Science Conference Proceedings (OSTI)

Citizens are expressing increased concern over the number and variety of environmental problems. Global warming in particular is a focus of concern for scientists and environmental groups. Such concern should naturally motivate individuals to seek information about these topics. Many people turn to the media, most usually television, for information on the nature of these problems. Consequently, this paper studied media coverage of environmental issues, specifically global warming. Television coverage was examined for: (1) the general nature of coverage; (2) biases in coverage; (3) visual images used to cover global warming; and (4) the congruity between visual and verbal messages in newscasts. Nightly newscasts from the three major American television networks were analyzed from 1993--1995 to determine the overall nature of global warming coverage since the Earth Summit in 1992. Results indicated that television news suffers from some serious inadequacies in its portrayal of global warming issues. The paper concludes by first discussing how its results intertwine with other work in the global warming and mass media field. Finally, the implications of inadequacies in media coverage for policy-makers when it comes to sound management of critical resources in this area are also discussed.

Nitz, M. [Univ. of Idaho, Moscow, ID (United States). School of Communication; Jarvis, S. [Univ. of Texas, Austin, TX (United States). Dept. of Speech Communication; Kenski, H. [Univ. of Arizona, Tucson, AZ (United States). Dept. of Communication

1996-06-01T23:59:59.000Z

134

Implications for the creation of warm saline deep water: Late Paleocene reconstructions and global climate model simulations  

SciTech Connect

A global warming trend began during the late Paleocene that culminated in the early Eocene with the highest global temperatures of the Cenozoic. We have reconstructed late Paleocene surfacial boundary conditions and modeled atmospheric conditions using the Goddard Institute for Space Studies general circulation model version II (GISS GCM II). These experiments were conducted to test the hypothesis that warm saline deep water formed during the late paleocene and to understand atmospheric circulation near the beginning of a period of global warming. The warming is attributed primarily to increased sea surface temperatures at high latitudes. The sensitivity of the climate to ocean temperature was tested using two sea surface temperature distributions, each delimited latitudinally by oxygen isotope values, but with different east-west gradients. The simulations discussed here contain several features unique among warm climate experiments. The first experiment (P-1) used latitudinally constant (zonal) sea surface temperatures. The zonally distributed sea surface temperatures strengthen the general circulation of the atmosphere. In particular, Hadley Cell circulation is intensified, leading to extremes of precipitation in the equatorial region and extreme evaporation across subtropical oceans. The unusual results prompted a second experiment with modern east-west sea surface temperature gradients superimposed and referred to as P-Gradient (P-Grad). 84 refs., 10 figs., 4 tabs.

O`Connell, S. [Wesleyan Univ., Middletown, CT (United States); Chandler, M.A. [Columbia Univ., New York, NY (United States)]|[Goddard Inst. of Space Studies, New York, NY (United States); Ruedy, R. [Goddard Inst. of Space Studies, New York, NY (United States)

1996-03-01T23:59:59.000Z

135

Physics of greenhouse effect and convection in warm Oceans  

SciTech Connect

Sea surface temperatures (SST) in roughly 50% of the tropical Pacific Ocean is warm enough (SST > 300 K) to permit deep convection. This paper examines the effects of deep convection on the climatological mean vertical distributions of water vapor and its greenhouse effect over such warm oceans. The study also examines the link between SST, vertical distribution of water vapor, and its greenhouse effect in the tropical oceans. The radiation model calculations do not include the effects of clouds. The data are grouped into nonconvective and convective categories using SST as an index for convective activity. On average, convective regions are more humid, trap significantly more longwave radiation, and emit more radiation to the sea surface. The greenhouse effect in regions of convection operates as per classical ideas, that is, as the SST increases, the atmosphere traps the excess longwave energy emitted by the surface and reradiates it locally back to the ocean surface. The important departure from the classical picture is that the net (up minus down) fluxes at the surface and at the top-of-the atmosphere decrease with an increase in SST; that is, the surface and the surface-troposphere column lose the ability to radiate the excess energy to space. The cause of this upper greenhouse effect at the surface is the rapid increase in the lower-troposphere humidity with SST; that of the column is due to a combination of increase in humidity in the entire column and increase in the lapse rate within the lower troposphere. The increase in the vertical distribution of humidity far exceeds that which can be attributed to the temperature dependence of saturation vapor pressure; that is, the tropospheric relative humidity is larger in convective regions. The positive coupling between SST and the radiative warming of the surface by the water vapor greenhouse effect is also shown to exist on interannual time scales. 35 refs., 17 figs. 4 tabs.

Inamdar, A.K.; Ramanathan, V. (Univ. of California, San Diego, La Jolla, CA (United States))

1994-05-01T23:59:59.000Z

136

Hydrogen and oxygen isotope geochemistry of cold and warm springs from the Tuscarora, Nevada thermal area  

DOE Green Energy (OSTI)

Eighteen cold and warm spring water samples from the Tuscarora, Nevada KGRA have been analyzed for hydrogen and oxygen isotope composition and fluid chemistry. Warm springs have deltaD values (-128 to -137 permil) significantly lower than those of cold springs to the north and east of the area, but similar to the deltaD values of cold springs to the west and south (-131 to -135 permil). The recharge area for the warm springs is unlikely to be to the immediate north, which is the local topographic highland in the area. The hydrogen isotope data would permit recharge from areas to the southwest or from high elevations to the southeast (Independence Mountains), a sector consistent with electrical resistivity evidence of fluid flow. Warm springs are HCO/sub 3//sup -/-rich waters, enriched by a factor of 3 to 10 in Na, HCO{sub 3}/{sup -} and SiO{sub 2} relative to local cold springs. Average quartz (no steam loss) and Na/K/Ca geothermometer estimates suggest subsurface temperatures of 145{sup 0} and 196{sup 0}C, respectively. The warm springs exhibit poor correlations between either hydrogen or oxygen isotope composition and water temperature or chemistry. The absence of such correlations suggests that there is no single coherent pattern of cold water mixing or evaporation in the thermal spring system.

Bowman, J.R.; Cole, D.

1982-06-01T23:59:59.000Z

137

Hydrogen and oxygen isotope geochemistry of cold and warm springs from the Tuscarora, Nevada Thermal Area  

DOE Green Energy (OSTI)

Eighteen cold and warm spring water samples from the Tuscarora, Nevada KGRA have been analyzed for hydrogen and oxygen isotope composition and fluid chemistry. Warm springs have deltaD values (128 to -137 permil) significantly lower than those of cold springs to the north and east of the area, but similar to the deltaD values of cold springs to the west and south (-131 to -135 permil). The recharge area for the warm springs is unlikely to be to the immediate north, which is the local topographic highland in the area. The hydrogen isotope data would permit recharge from areas to the southwest or from high elevations to the southeast (Independence Mountains), a sector consistent with electrical resistivity evidence of fluid flow. Warm springs are HCO/sub 3//sup -/-rich waters, enriched by a factor of 3 to 10 in Na, HCO/sub 3//sup -/ and SiO/sub 2/ relative to local cold springs. Average quartz (no steam loss) and Na/K/Ca geothermometer estimates suggest subsurface temperatures of 145/sup 0/ and 196/sup 0/C, respectively. The warm springs exhibit poor correlations between either hydrogen or oxygen isotope composition and water temperature or chemistry. The absence of such correlations suggests that there is no single coherent pattern of cold water mixing or evaporation in the thermal spring system.

Bowman, J.R.; Cole, D.

1982-10-01T23:59:59.000Z

138

The role of clouds and oceans in global greenhouse warming  

SciTech Connect

During the past three years we have conducted several studies using models and a combination of satellite data, in situ meteorological and oceanic data, and paleoclimate reconstructions, under the DoE program, Quantifying the Link Between Change in Radiative Balance and Atmospheric Temperature''. Our goals were to investigate effects of global cloudiness variations on global climate and their implications for cloud feedback and continue development and application of NYU transient climate/ocean models, with emphasis on coupled effects of greenhouse warming and feedbacks by both the clouds and oceans. Our original research plan emphasized the use of cloud, surface temperature and ocean data sets interpreted by focused climate/ocean models to develop a cloud radiative forcing scenario for the past 100 years and to assess the transient climate response; to narrow key uncertainties in the system; and to identify those aspects of the climate system most likely to be affected by greenhouse warming over short, medium and long time scales.

Hoffert, M.I.

1992-12-01T23:59:59.000Z

139

Why the Earth has not warmed as much as expected?  

Science Conference Proceedings (OSTI)

The observed increase in global mean surface temperature (GMST) over the industrial era is less than 40% of that expected from observed increases in long-lived greenhouse gases together with the best-estimate equilibrium climate sensitivity given by the 2007 Assessment Report of the Intergovernmental Panel on Climate Change. Possible reasons for this warming discrepancy are systematically examined here. The warming discrepancy is found to be due mainly to some combination of two factors: the IPCC best estimate of climate sensitivity being too high and/or the greenhouse gas forcing being partially offset by forcing by increased concentrations of atmospheric aerosols; the increase in global heat content due to thermal disequilibrium accounts for less than 25% of the discrepancy, and cooling by natural temperature variation can account for only about 15%. Current uncertainty in climate sensitivity is shown to preclude determining the amount of future fossil fuel CO2 emissions that would be compatible with any chosen maximum allowable increase in GMST; even the sign of such allowable future emissions is unconstrained. Resolving this situation, by empirical determination of the earth's climate sensitivity from the historical record over the industrial period or through use of climate models whose accuracy is evaluted by their performance over this period, is shown to require substantial reduction in the uncertainty of aerosol forcing over this period.

Schwartz, S.E.

2010-05-01T23:59:59.000Z

140

Warming of Global Abyssal and Deep Southern Ocean Waters between the 1990s and 2000s: Contributions to Global Heat and Sea Level Rise Budgets  

Science Conference Proceedings (OSTI)

Abyssal global and deep Southern Ocean temperature trends are quantified between the 1990s and 2000s to assess the role of recent warming of these regions in global heat and sea level budgets. The authors 1) compute warming rates with ...

Sarah G. Purkey; Gregory C. Johnson

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

The Early Twentieth-Century Warming in the ArcticA Possible Mechanism  

Science Conference Proceedings (OSTI)

The huge warming of the Arctic that started in the early 1920s and lasted for almost two decades is one of the most spectacular climate events of the twentieth century. During the peak period 193040, the annually averaged temperature anomaly for ...

Lennart Bengtsson; Vladimir A. Semenov; Ola M. Johannessen

2004-10-01T23:59:59.000Z

142

The Mean and Near-Inertial Velocity Fields in a Warm-Core Ring  

Science Conference Proceedings (OSTI)

Velocity and temperature profiles collected in warm-core ring 82-I in January 1983 are used to describe the mean and fluctuating fields of the ring. The ring was relatively small, containing no Sargasso See water. Its signature vanished below 600 ...

Eric Kunze

1986-08-01T23:59:59.000Z

143

Tropical Indian Ocean Basin Warming and East Asian Summer Monsoon: A Multiple AGCM Study  

Science Conference Proceedings (OSTI)

A basin-scale warming is the leading mode of tropical Indian Ocean sea surface temperature (SST) variability on interannual time scales, and it is also the prominent feature of the interdecadal SST trend in recent decades. The influence of the ...

Shuanglin Li; Jian Lu; Gang Huang; Kaiming Hu

2008-11-01T23:59:59.000Z

144

Atmospheric Responses of Gill-Type and LindzenNigam Models to Global Warming  

Science Conference Proceedings (OSTI)

The equatorial Pacific atmosphere responds differently to global warming in the Gill-type and LindzenNigam models. Under an assumption of no change in the zonal sea surface temperature (SST) gradient in the Gill-type model, the Walker circulation ...

Soon-Il An

2011-12-01T23:59:59.000Z

145

Modeling the subsurface thermal impact of Arctic thaw lakes in a warming climate  

Science Conference Proceedings (OSTI)

Warming air temperatures in the Arctic are modifying the rates of thermokarst processes along Alaska's Arctic Coastal Plain. The Arctic Coastal Plain is dominated by thaw lakes. These kilometer-scale lakes are the most visible surface features in the ... Keywords: MATLAB, Numerical model, Permafrost, Thaw lakes, Thermal model

N. Matell; R. S. Anderson; I. Overeem; C. Wobus; F. E. Urban; G. D. Clow

2013-04-01T23:59:59.000Z

146

Warm-to-Cold Water Conversion in the Northern North Atlantic Ocean  

Science Conference Proceedings (OSTI)

A box Model of warm-to-cold-water conversion in the northern North Atlantic is developed and used to estimate conversion rates, given water mass temperatures, conversion paths and rate of air-sea heat exchange. The northern North Atlantic is ...

M. S. McCartney; L. D. Talley

1984-05-01T23:59:59.000Z

147

Global Warming and the Problem of Testing for Trend in Time Series Data  

Science Conference Proceedings (OSTI)

In recent years a number of statistical tests have been proposed for testing the hypothesis that global warming is occurring. The standard approach is to examine one or two of the more prominent global temperature datasets by letting Yt = a + bt +...

Wayne A. Woodward; H. L. Gray

1993-05-01T23:59:59.000Z

148

Can we delay a greenhouse warming  

SciTech Connect

This article reviews a book published by the Environmental Protection Agency. The book discussed the Greenhouse Effect which is a warming of the earth's atmosphere caused by the doubling of the atmospheric carbon dioxide concentration. The excess carbon dioxide is pollution derived from the burning of fossil fuels. The report suggested that the warming of the atmosphere would cause thawing of the polar regions which in turn would cause a rise in sea levels and flooding of the coastal lowlands. In addition to the flooding, the report predicted climate changes that would effect the productivity of croplands in the west. The authors of the report stressed that there was no way to avoid this warming of the earth. They suggested that people should start preparing for the inevitable.

Seidel, S.; Keyes, D.

1983-01-01T23:59:59.000Z

149

On the Interpretation of Antarctic Temperature Trends  

Science Conference Proceedings (OSTI)

Determining the rate of atmospheric warming in Antarctica is hampered by the brevity of the temperature records (<50 years), which still contain signals of decadal circulation variability in the Southern Hemisphere. In this note it is ...

Michiel R. van den Broeke

2000-11-01T23:59:59.000Z

150

Joint Institute for High Temperatures  

National Nuclear Security Administration (NNSA)

Joint Institute for High Temperatures of Russian Academy of Sciences Moscow Institute of Physics and Technology Extended title Extended title Excited state of warm dense matter or Exotic state of warm dense matter or Novel form of warm dense matter or New form of plasma Three sources of generation similarity: solid state density, two temperatures: electron temperature about tens eV, cold ions keep original crystallographic positions, but electron band structure and phonon dispersion are changed, transient but steady (quasi-stationary for a short time) state of non-equilibrium, uniform plasmas (no reference to non-ideality, both strongly and weakly coupled plasmas can be formed) spectral line spectra are emitted by ion cores embedded in plasma environment which influences the spectra strongly,

151

Regional Patterns of Sea Surface Temperature Change: A Source of Uncertainty in Future Projections of Precipitation and Atmospheric Circulation  

Science Conference Proceedings (OSTI)

Precipitation change in response to global warming has profound impacts on environment for life but is highly uncertain. Effects of sea surface temperature (SST) warming on the response of rainfall and atmospheric overturning circulation are ...

Jian Ma; Shang-Ping Xie

2013-04-01T23:59:59.000Z

152

The Vertical Structures of Atmospheric Temperature Anomalies Associated with Two Flavors of El Nio Simulated by AMIP II Models  

Science Conference Proceedings (OSTI)

Recent studies have identified different modes associated with two flavors of El Nio in terms of the three-dimensional structure of atmospheric temperature. The first is a deep-warm mode, which features a coherent zonal mean warming throughout ...

Tianjun Zhou; Jie Zhang

2011-02-01T23:59:59.000Z

153

Policy implications of greenhouse warming: Mitigation, adaptation, and the science base  

SciTech Connect

This book discusses the policy implications of greenhouse warming by examining three major areas: general summary of information about the greenhouse effect leading to a framework for policy; the science basis for the greenhouse effect; mitigation of greenhouse warming. Each section contains 9-13 chapters on specific subjects including the following: overview of greenhouse gases; policy implications; internations considerations; climate records and models; sea levels; temperature rise estimation; energy management at several levels; nonenergy emission reduction; human populations; deforestation. Conclusions are summarized at the end of each section.

Not Available

1992-01-01T23:59:59.000Z

154

Surface Temperature Patterns Associated with the Southern Oscillation  

Science Conference Proceedings (OSTI)

The typical global and large-scale regional temperature patterns associated with the low (warm) and high (cold) phases of the Southern Oscillation (SO) are investigated. A total of 12 separate regions were found to have consistent temperature ...

Michael S. Halpert; Chester F. Ropelewski

1992-06-01T23:59:59.000Z

155

Global crop yield losses from recent warming  

Science Conference Proceedings (OSTI)

Global yields of the world-s six most widely grown crops--wheat, rice, maize, soybeans, barley, sorghum--have increased since 1961. Year-to-year variations in growing season minimum temperature, maximum temperature, and precipitation explain 30% or more of the variations in yield. Since 1991, climate trends have significantly decreased yield trends in all crops but rice, leading to foregone production since 1981 of about 12 million tons per year of wheat or maize, representing an annual economic loss of $1.2 to $1.7 billion. At the global scale, negative impacts of climate trends on crop yields are already apparent. Annual global temperatures have increased by {approx}0.4 C since 1980, with even larger changes observed in several regions (1). While many studies have considered the impacts of future climate changes on food production (2-5), the effects of these past changes on agriculture remain unclear. It is likely that warming has improved yields in some areas, reduced them in others, and had negligible impacts in still others; the relative balance of these effects at the global scale is unknown. An understanding of this balance would help to anticipate impacts of future climate changes, as well as to more accurately assess recent (and thereby project future) technologically driven yield progress. Separating the contribution of climate from concurrent changes in other factors--such as crop cultivars, management practices, soil quality, and atmospheric carbon dioxide (CO{sub 2}) levels--requires models that describe the response of yields to climate. Studies of future global impacts of climate change have typically relied on a bottom-up approach, whereby field scale, process-based models are applied to hundreds of representative sites and then averaged (e.g., ref 2). Such approaches require input data on soil and management conditions, which are often difficult to obtain. Limitations on data quality or quantity can thus limit the utility of this approach, especially at the local scale (6-8). At the global scale, however, many of the processes and impacts captured by field scale models will tend to cancel out, and therefore simpler empirical/statistical models with fewer input requirements may be as accurate (8, 9). Empirical/statistical models also allow the effects of poorly modeled processes (e.g., pest dynamics) to be captured and uncertainties to be readily quantified (10). Here we develop new, empirical/statistical models of global yield responses to climate using datasets on broad-scale yields, crop locations, and climate variability. We focus on global average yields for the six most widely grown crops in the world: wheat, rice, maize, soybeans, barley, and sorghum. Production of these crops accounts for over 40% of global cropland area (11). 55% of non-meat calories, and over 70% of animal feed (12).

Lobell, D; Field, C

2006-06-02T23:59:59.000Z

156

"Hot" for Warm Water Cooling  

Science Conference Proceedings (OSTI)

Liquid cooling is key to reducing energy consumption for this generation of supercomputers and remains on the roadmap for the foreseeable future. This is because the heat capacity of liquids is orders of magnitude larger than that of air and once heat has been transferred to a liquid, it can be removed from the datacenter efficiently. The transition from air to liquid cooling is an inflection point providing an opportunity to work collectively to set guidelines for facilitating the energy efficiency of liquid-cooled High Performance Computing (HPC) facilities and systems. The vision is to use non-compressor-based cooling, to facilitate heat re-use, and thereby build solutions that are more energy-efficient, less carbon intensive and more cost effective than their air-cooled predecessors. The Energy Efficient HPC Working Group is developing guidelines for warmer liquid-cooling temperatures in order to standardize facility and HPC equipment, and provide more opportunity for reuse of waste heat. This report describes the development of those guidelines.

IBM Corporation; Energy Efficient HPC Working Group; Hewlett Packard Corporation; SGI; Cray Inc.; Intel Corporation; U.S. Army Engineer Research Development Center; Coles, Henry; Ellsworth, Michael; Martinez, David J.; Bailey, Anna-Maria; Banisadr, Farhad; Bates, Natalie; Coghlan, Susan; Cowley, David E.; Dube, Nicholas; Fields, Parks; Greenberg, Steve; Iyengar, Madhusudan; Kulesza, Peter R.; Loncaric, Josip; McCann, Tim; Pautsch, Greg; Patterson, Michael K.; Rivera, Richard G.; Rottman, Greg K.; Sartor, Dale; Tschudi, William; Vinson, Wade; Wescott, Ralph

2011-08-26T23:59:59.000Z

157

Supermassive Black Holes and the Warm Ionized  

E-Print Network (OSTI)

Supermassive Black Holes and the Warm Ionized Gas in Early-type Galaxies Renbin Yan University stars actively. (late-type galaxies) #12;Prevalence of Supermassive Black Holes in Massive Galaxies MBH merging Right after coalescing Post-merger Star Formation Rate Black Hole Accretion Rate #12;Maintenance

Wang, Ming-Jye

158

Can we delay a greenhouse warming  

SciTech Connect

The author comments on the EPA report dated September 1983 Can We Delay A Greenhouse Warming. He takes exception to the widely-held interpretation that the answer is not much. The contribution of other greenhouse gases such as methane and nitrous oxide to the EPA scenarios is pointed out, and the lack of understanding of their role is emphasised. (ACR)

Perry, A.M.

1983-01-01T23:59:59.000Z

159

Warm Pool Physics in a Coupled GCM  

Science Conference Proceedings (OSTI)

The physics of the IndoPacific warm pool are investigated using a coupled ocean atmosphere general circulation model. The model, developed at the Max-Planck-Institut fair Meteorologic, Hamburg, does not employ a flux correction and is used with ...

Niklas Schneider; Tim Barnett; Mojib Latif; Timothy Stockdale

1996-01-01T23:59:59.000Z

160

Stay Warm and Save Money This Winter with Tips from the Energy Department |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stay Warm and Save Money This Winter with Tips from the Energy Stay Warm and Save Money This Winter with Tips from the Energy Department Stay Warm and Save Money This Winter with Tips from the Energy Department December 19, 2011 - 1:24pm Addthis Department of Energy headquarters during the winter months. | DOE file photo. Department of Energy headquarters during the winter months. | DOE file photo. What does this mean for me? Help your family save money by saving energy with these tips this winter. Click "start now" on Benefits.gov to find out if you're eligible for government assistance, including energy-related costs. Editor's note: This article was originally posted on Benefits.gov. As the days get shorter and temperatures get cooler, those energy bills seem to just keep going up. The average American spends around $2,000 per household on energy costs

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Stay Warm and Save Money This Winter with Tips from the Energy Department |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stay Warm and Save Money This Winter with Tips from the Energy Stay Warm and Save Money This Winter with Tips from the Energy Department Stay Warm and Save Money This Winter with Tips from the Energy Department December 19, 2011 - 1:24pm Addthis Department of Energy headquarters during the winter months. | DOE file photo. Department of Energy headquarters during the winter months. | DOE file photo. What does this mean for me? Help your family save money by saving energy with these tips this winter. Click "start now" on Benefits.gov to find out if you're eligible for government assistance, including energy-related costs. Editor's note: This article was originally posted on Benefits.gov. As the days get shorter and temperatures get cooler, those energy bills seem to just keep going up. The average American spends around $2,000 per household on energy costs

162

Three-Dimensional Studies of the Warm Ionized Medium in the Milky Way using WHAM  

E-Print Network (OSTI)

The Wisconsin H-Alpha Mapper (WHAM) is a high throughput Fabry-Perot facility developed specifically to detect and explore the warm, ionized component of the interstellar medium at high spectral resolution. It began operating at Kitt Peak, Arizona in 1997 and has recently completed the WHAM Northern Sky Survey (WHAM-NSS), providing the first global view of the distribution and kinematics of the warm, diffuse H II in the Milky Way. This H-alpha survey reveals a complex spatial and kinematic structure in the warm ionized medium and provides a foundation for studies of the temperature and ionization state of the gas, the spectrum and strength of the ionizing radiation, and its relationship to other components of the interstellar medium and sources of ionization and heating within the Galactic disk and halo. More information about WHAM and the Survey can be found at http://www.astro.wisc.edu/wham/.

R. J. Reynolds; L. M. Haffner; G. J. Madsen

2002-01-23T23:59:59.000Z

163

Three-Dimensional Studies of the Warm Ionized Medium in the Milky Way using WHAM  

E-Print Network (OSTI)

The Wisconsin H-Alpha Mapper (WHAM) is a high throughput Fabry-Perot facility developed specifically to detect and explore the warm, ionized component of the interstellar medium at high spectral resolution. It began operating at Kitt Peak, Arizona in 1997 and has recently completed the WHAM Northern Sky Survey (WHAM-NSS), providing the first global view of the distribution and kinematics of the warm, diffuse H II in the Milky Way. This H-alpha survey reveals a complex spatial and kinematic structure in the warm ionized medium and provides a foundation for studies of the temperature and ionization state of the gas, the spectrum and strength of the ionizing radiation, and its relationship to other components of the interstellar medium and sources of ionization and heating within the Galactic disk and halo. More information about WHAM and the Survey can be found at http://www.astro.wisc.edu/wham/.

Reynolds, R J; Madsen, G J

2002-01-01T23:59:59.000Z

164

Observational Constraints on Past Attributable Warming and Predictions of Future Global Warming  

Science Conference Proceedings (OSTI)

This paper investigates the impact of aerosol forcing uncertainty on the robustness of estimates of the twentieth-century warming attributable to anthropogenic greenhouse gas emissions. Attribution analyses on three coupled climate models with ...

Peter A. Stott; John F. B. Mitchell; Myles R. Allen; Thomas L. Delworth; Jonathan M. Gregory; Gerald A. Meehl; Benjamin D. Santer

2006-07-01T23:59:59.000Z

165

On the Contribution of Major Warming Episodes in the Tropical East Pacific to a Useful Prognostic Relationship Based on the Southern Oscillation  

Science Conference Proceedings (OSTI)

It is known that the Southern Oscillation Index (SOI) and the mean sea surface temperature off the Peru Coast are highly coherent and that variations of the latter are dominated by infrequent warming episodes. The present study examines the ...

Robert R. Dickson; Robert E. Livezey

1984-02-01T23:59:59.000Z

166

Decadal Variability of the Indo-Pacific Warm Pool and Its Association with Atmospheric and Oceanic Variability in the NCEPNCAR and SODA Reanalyses  

Science Conference Proceedings (OSTI)

Decadal variability of the Indo-Pacific warm pool (IPWP) sea surface temperature (SST) and its association with atmospheric and oceanic circulations are investigated with observed 50-yr (19522001) SST, and the NCEPNCAR atmospheric and Simple ...

Hui Wang; Vikram M. Mehta

2008-11-01T23:59:59.000Z

167

Building Technologies Office: Low-Global Warming Potential Refrigerants  

NLE Websites -- All DOE Office Websites (Extended Search)

Low-Global Warming Low-Global Warming Potential Refrigerants Research Project to someone by E-mail Share Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Facebook Tweet about Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Twitter Bookmark Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Google Bookmark Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Delicious Rank Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on Digg Find More places to share Building Technologies Office: Low-Global Warming Potential Refrigerants Research Project on AddThis.com... About Take Action to Save Energy

168

Energy Tax Credits: Stay Warm and Save MORE Money! | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tax Credits: Stay Warm and Save MORE Money Energy Tax Credits: Stay Warm and Save MORE Money October 29, 2008 - 6:00am Addthis Allison Casey Senior Communicator, NREL With all of...

169

An Interpretation of Sudden Warmings In Terms of Potential vorticity  

Science Conference Proceedings (OSTI)

A simple and concise interpretation of stratospheric sudden warmings is offered in terms Of the transient changes in the potential vorticity pattern. The warming is viewed as a manifestation of the reversal of the mean (zonally averaged) relative ...

H. C. Davies

1981-02-01T23:59:59.000Z

170

Forecast cloudy; The limits of global warming models  

SciTech Connect

This paper reports on climate models used to study global warming. It discusses factors which must be included in climate models, shortcomings of existing climate models, and scenarios for global warming.

Stone, P.H.

1992-02-01T23:59:59.000Z

171

Sonoluminescence test for equation of state in warm dense matter  

E-Print Network (OSTI)

IN WARM DENSE MATTER Siu-Fai Ng 1, 2 , J. J. Barnard 3 , P.IN WARM DENSE MATTER Siu-Fai Ng 1, 2 , J. J. Barnard 3 , P.

Ng, Siu-Fai

2008-01-01T23:59:59.000Z

172

Anthropogenic Warming of the Oceans: Observations and Model Results  

Science Conference Proceedings (OSTI)

Observations show the oceans have warmed over the past 40 yr, with appreciable regional variation and more warming at the surface than at depth. Comparing the observations with results from two coupled oceanatmosphere climate models [the ...

David W. Pierce; Tim P. Barnett; Krishna M. AchutaRao; Peter J. Gleckler; Jonathan M. Gregory; Warren M. Washington

2006-05-01T23:59:59.000Z

173

Mechanisms for Global Warming Impacts on Precipitation Frequency and Intensity  

Science Conference Proceedings (OSTI)

Global warming mechanisms that cause changes in frequency and intensity of precipitation in the tropics are examined in climate model simulations. Under global warming, tropical precipitation tends to be more frequent and intense for heavy ...

Chia Chou; Chao-An Chen; Pei-Hua Tan; Kuan Ting Chen

2012-05-01T23:59:59.000Z

174

The Heat Balance of the Western Hemisphere Warm Pool  

Science Conference Proceedings (OSTI)

The thermodynamic development of the Western Hemisphere warm pool and its four geographic subregions are analyzed. The subregional warm pools of the eastern North Pacific and equatorial Atlantic are best developed in the boreal spring, while in ...

David B. Enfield; Sang-ki Lee

2005-07-01T23:59:59.000Z

175

Comparing the effects of greenhouse gas emissions on global warming  

E-Print Network (OSTI)

Policies dealing with global warming require a measure of the effects of the emissions of greenhouse gases that create different magnitudes of instantaneous radiative forcing and have different lifetimes. The Global Warming ...

Eckaus, Richard S.

1990-01-01T23:59:59.000Z

176

California Policy Should Distinguish Biofuels by Differential Global Warming Effects  

E-Print Network (OSTI)

California Policy Should Distinguish Biofuels by Differential Global Warming Effects by Richard J: _______________________________________ Date #12;California Policy Should Distinguish Biofuels by Differential Global Warming Effects Richard J, 2006 #12;#12;ABSTRACT California Policy Should Distinguish Biofuels by Differential Global Warming

Kammen, Daniel M.

177

Maintaining body temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

Maintaining body temperature Maintaining body temperature Name: Jeff Location: N/A Country: N/A Date: N/A Question: What keeps the human body at a constant temperature of 98.6? Replies: Maintaining body temperature is very complex. It also takes a lot of energy. About 80% of the energy from the food you eat goes to maintaining body temperature. Basically, the chemical reactions of metabolism of stored food, especially fats, generate heat as a by product. This heat warms the body. The brain reads temperature and controls to some extent the rate of this metabolism. There are also many other mechanisms triggered by the brain to keep the core of your body warm, even if the periphery (skin) is cold. Blood vessels to the fingers and toes constrict, so that the cold air doesn't cool the blood too much, so that cooled blood doesn't cool down the heart and brain when it returns. In severe cases, your body will sacrifice a finger or a toe to keep you from dying of cold core temperature (frostbite: it saves your life!). Also the brain can order a lot of muscles to contract rapidly. This generates a lot of heat quickly, a response called shivering. There's much more to this exciting field of research.

178

Decarbonization and Sequestration for Mitigating Global Warming  

NLE Websites -- All DOE Office Websites (Extended Search)

DECARBONIZATION AND SEQUESTRATION FOR DECARBONIZATION AND SEQUESTRATION FOR MITIGATING GLOBAL WARMING M. Steinberg (msteinbe@bnl.gov); 631-344-3036 Brookhaven National Laboratory 12 South Upton Street Upton, NY 11973-5000, USA ABSTRACT Mitigating the global warming greenhouse effect while maintaining a fossil fuel economy, requires improving efficiency of utilization of fossil fuels, use of high hydrogen content fossil fuels, decarbonization of fossil fuels, and sequestering of carbon and CO 2 applied to all the sectors of the economy, electric power generation, transportation, and industrial, and domestic power and heat generation. Decarbonization means removal of carbon as C or CO 2 either before or after fossil fuel combustion and sequestration means disposal of the recovered C or CO 2 including its utilization. Removal and recovery of CO

179

Rethinking the economics of global warming  

SciTech Connect

Most of the debates over the impact of the greenhouse effect have centered around the reliability of computer models and have neglected considerations of the economic effects of attempts to reduce global warming. Economic models have certain limitations but the input of cost benefit analysis is needed for arriving at suitable policies for lowering anthropogenic input into warming of the earth. Care must be used in extrapolating from data of time periods which are inappropriate. Estimates of costs of reducing greenhouse-gas emissions also must include possible benefits; at present this is not being done. Economic models must address differences in the distribution of global warming's consequences over time and geographical space. The costs of delaying or accelerating reduction in greenhouse-gas emissions need to be included in policy considerations. A global agreement must not adversely affect developing countries. Faulty assumptions of the effect of market forces on costs impair economic models. We have to recognize that economic and environmental goals need not be incompatible. If economic models are viewed as possible scenarios and not as predictions, then these scenarios can be useful in determining policies for reducing the greenhouse effect without harming populations and their economies.

Miller, A.; Mintzer, I.; Brown, P.G. (Univ. of Maryland, College Park (USA))

1990-01-01T23:59:59.000Z

180

Warm Standby in Hierarchically Structured Process-Control Programs  

E-Print Network (OSTI)

We classify standby redundancy design space in process-control programs into the following three categories: cold standby, warm standby, and hot standby. Design parameters of warm standby are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for longlived unmaintainable systems, especially those operating in harsh environments where burst hardware failures are possible. The feasibility of warm standby is demonstrated with a simulated chemical batch reactor system.

Ing-Ray Chen And; Ing-ray Chen; Farokh B. Bastani

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Studies say - tentatively - that greenhouse warming is here  

SciTech Connect

Published studies on greenhouse warming have been ambivalent as to whether warming has arrived. Now two independent studies of the climate record have incriminated the green-house effect in global warming, although they fall short of convicting it. Researchers at the Max Planck Institute for Meteorology in Hamburg are confident they have exonerated natural climatic variability, saying the observed global warming seems to large to account for the warming effect. A group from Lawrence Livermore National Laboratory directly implicates greenhouse warming by finding its geographic `fingerprinting` in the climate record of the past century. This article discusses both studies and how the results will affect future concerns in the area of greenhouse warming.

Kerr, R.A.

1995-06-16T23:59:59.000Z

182

Sorption Mechanisms for Mercury Capture in Warm Post-Gasification Gas Clean-Up Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Sorption MechaniSMS for Mercury Sorption MechaniSMS for Mercury capture in WarM poSt-GaSification GaS clean-up SySteMS Background Power generation systems employing gasification technology must remove a variety of potential air pollutants, including mercury, from the synthetic gas steam prior to combustion. In general, efforts to remove mercury have focused on removal at lower temperatures (under 300 °F). The ability to remove mercury at warm-gas cleanup conditions (300 °F to 700 °F) or in the hot-gas cleanup range (above 1200 °F) would provide plant operators with greater flexibility to choose the treatment method best suited to conditions at their plant. The University of Arizona is investigating the use of paper waste-derived sorbents (PWDS) for the removal of mercury and other trace metals at temperatures in and

183

The role of clouds and oceans in global greenhouse warming. Part 1, Progress report  

SciTech Connect

During the past three years we have conducted several studies using models and a combination of satellite data, in situ meteorological and oceanic data, and paleoclimate reconstructions, under the DoE program, ``Quantifying the Link Between Change in Radiative Balance and Atmospheric Temperature``. Our goals were to investigate effects of global cloudiness variations on global climate and their implications for cloud feedback and continue development and application of NYU transient climate/ocean models, with emphasis on coupled effects of greenhouse warming and feedbacks by both the clouds and oceans. Our original research plan emphasized the use of cloud, surface temperature and ocean data sets interpreted by focused climate/ocean models to develop a cloud radiative forcing scenario for the past 100 years and to assess the transient climate response; to narrow key uncertainties in the system; and to identify those aspects of the climate system most likely to be affected by greenhouse warming over short, medium and long time scales.

Hoffert, M.I.

1992-12-01T23:59:59.000Z

184

Warm Water Oxidation Verification - Scoping and Stirred Reactor Tests  

Science Conference Proceedings (OSTI)

Scoping tests to evaluate the effects of agitation and pH adjustment on simulant sludge agglomeration and uranium metal oxidation at {approx}95 C were performed under Test Instructions(a,b) and as per sections 5.1 and 5.2 of this Test Plan prepared by AREVA. (c) The thermal testing occurred during the week of October 4-9, 2010. The results are reported here. For this testing, two uranium-containing simulant sludge types were evaluated: (1) a full uranium-containing K West (KW) container sludge simulant consisting of nine predominant sludge components; (2) a 50:50 uranium-mole basis mixture of uraninite [U(IV)] and metaschoepite [U(VI)]. This scoping study was conducted in support of the Sludge Treatment Project (STP) Phase 2 technology evaluation for the treatment and packaging of K-Basin sludge. The STP is managed by CH2M Hill Plateau Remediation Company (CHPRC) for the U.S. Department of Energy. Warm water ({approx}95 C) oxidation of sludge, followed by immobilization, has been proposed by AREVA and is one of the alternative flowsheets being considered to convert uranium metal to UO{sub 2} and eliminate H{sub 2} generation during final sludge disposition. Preliminary assessments of warm water oxidation have been conducted, and several issues have been identified that can best be evaluated through laboratory testing. The scoping evaluation documented here was specifically focused on the issue of the potential formation of high strength sludge agglomerates at the proposed 95 C process operating temperature. Prior hydrothermal tests conducted at 185 C produced significant physiochemical changes to genuine sludge, including the formation of monolithic concretions/agglomerates that exhibited shear strengths in excess of 100 kPa (Delegard et al. 2007).

Braley, Jenifer C.; Sinkov, Sergey I.; Delegard, Calvin H.; Schmidt, Andrew J.

2011-06-15T23:59:59.000Z

185

Effects of experimental warming and clipping on metabolic change of microbial community in a US Great Plains tallgrass prairie  

Science Conference Proceedings (OSTI)

While more and more studies are being conducted on the effects of global warming, little is known regarding the response of metabolic change of whole soil microbial communities to this phenomenon. In this study, functional gene changes at the mRNA level were analyzed by our new developed GeoChip 3.0. Soil samples were taken from a long-term climate warming experiment site, which has been conducted for ~;;8 years at the Kessler Farm Field Laboratory, a 137.6-ha farm located in the Central Redbed Plains, in McClain County, Oklahoma. The experiment uses a paired factorial design with warming as the primary factor nested with clipping as a secondary factor. An infrared heater was used to simulate global warming, and clipping was used to mimic mowing hay. Twelve 2m x 2m plots were divided into six pairs of warmed and control plots. The heater generates a constant output of ~;;100 Watts m-2 to approximately 2 oC increase in soil temperature above the ambient plots, which is at the low range of the projected climate warming by IPCC. Soil whole microbial communities? mRNA was extracted, amplified, labeled and hybridized with our GeoChip 3.0, a functional gene array covering genes involved in N, C, P, and S cycling, metal resistance and contaminant degradation, to examine expressed genes. The results showed that a greater number and higher diversity of genes were expressed under warmed plots compared to control. Detrended correspondence analysis (DCA) of all detected genes showed that the soil microbial communities were clearly altered by warming, with or without clipping. The dissimilarity of the communities based on functional genes was tested and results showed that warming and control communities were significantly different (P<0.05), with or without clipping. Most genes involved in C, N, P and S cycling were expressed at higher levels in warming samples compared to control samples. All of the results demonstrated that the whole microbial communities increase functional gene expression under warming with or without clipping in order to adapt the changed out environment. More detail analysis is underway.

Xie, Jianping; Liu, Xinxing; Liu, Xueduan; Nostrand, Joy D. Van; Deng, Ye; Wu, Liyou; He, Zhili; Qiu, Guanzhou; Zhou, Jizhong

2010-05-17T23:59:59.000Z

186

Global warming projections: Sensitivity to deep ocean mixing  

E-Print Network (OSTI)

The climatological impact of increases in greenhouse gas concentrations in the atmosphere, despite being a subject of intensive study in recent years, is still very uncertain [1, 2]. One major uncertainty affecting possible climate change that has not received enough attention is the uncertainty in heat uptake by the deep ocean. We analyze the influence of this process and its uncertainty on climate predictions by means of numerical simulations with a 2-dimensional (2D) climate model. In the case of high climate sensitivity, as a result of uncertainty in deep ocean heat uptake, there is more than a factor of two uncertainty in the predicted increase of surface temperature. The corresponding uncertainty in the sea level rise due to thermal expansion is much larger than the uncertainty in the predicted temperature change and is significant even in the case of low climate sensitivity. The uncertainty in the rate of heat uptake by the deep ocean has not been included in the projections of climate change made by the Intergovernmental Panel on Climate Change (IPCC) [1,2]. However, our results show that this uncertainty plays a very important role in defining the ranges ofpossible warming and, especially, of sea level rise. To assess the uncertainty we have used a 2-dimensional (zonally averaged) climate model, the MIT 2D model [3,4,5]. This model allows us to

Andrei P. Sokolov; Peter H. Stone

1996-01-01T23:59:59.000Z

187

Mechanisms Contributing to the Warming Hole and the Consequent U.S. EastWest Differential of Heat Extremes  

Science Conference Proceedings (OSTI)

A linear trend calculated for observed annual mean surface air temperatures over the United States for the second-half of the twentieth century shows a slight cooling over the southeastern part of the country, the so-called warming hole, while ...

Gerald A. Meehl; Julie M. Arblaster; Grant Branstator

2012-09-01T23:59:59.000Z

188

Sharp Frontal Interfaces in the Near-Surface Layer of the Ocean in the Western Equatorial Pacific Warm Pool  

Science Conference Proceedings (OSTI)

During the TOGA COARE rich horizontal temperature and salinity variability of the near-surface layer of the ocean in the western Pacific warm pool was observed. High-resolution measurements were made by probes mounted on the bow of the vessel in ...

Alexander Soloviev; Roger Lukas

1997-06-01T23:59:59.000Z

189

Physical Mechanisms Responsible for the Transition from a Warm to a Cold State of the El NioSouthern Oscillation  

Science Conference Proceedings (OSTI)

Based on the switch of a significant sea surface temperature anomaly (SSTA) over the central equatorial Pacific (the Nio-3.4 region) from ?0.5C to ?0.5C, three types of transitions from the warm (El Nio) to the cold (La Nia) phase of the El ...

Johnny C. L. Chan; Jianjun Xu

2000-06-01T23:59:59.000Z

190

Swapping Global Warming Gases for Methane in Gas Hydrate ...  

Science Conference Proceedings (OSTI)

Swapping Global Warming Gases for Methane in Gas Hydrate Layer ... would serve as energy sources as well as carbon dioxide storage sites in the ...

2006-07-20T23:59:59.000Z

191

Intense Ion Beam for Warm Dense Matter Physics  

E-Print Network (OSTI)

charged particle physics Introduction . . . . . . . . .Driven Warm Dense Matter Physics, Four Point Sher- atonIntroduction to Plasma Physics, Plenum Press, New York [18

Heimbucher, Lynn

2008-01-01T23:59:59.000Z

192

She, With a Warm Palm, the Skin Over My Spine.  

E-Print Network (OSTI)

??She, with a Warm Palm, the Skin over My Spine is a collection of sixnonfiction essays and three vignettes divided into two parts. The first (more)

Cambardella, Cara Maria Michele

2010-01-01T23:59:59.000Z

193

Atmospheric Temperature Measurement Biases on the Antarctic Plateau  

Science Conference Proceedings (OSTI)

Observations of atmospheric temperature made on the Antarctic Plateau with thermistors housed in naturally (wind) ventilated radiation shields are shown to be significantly warm biased by solar radiation. High incoming solar flux and high surface ...

Christophe Genthon; Delphine Six; Vincent Favier; Matthew Lazzara; Linda Keller

2011-12-01T23:59:59.000Z

194

Modulational instability of ion acoustic wave with warm ions in electron-positron-ion plasmas  

SciTech Connect

The nonlinear amplitude modulation of ion acoustic wave is studied in the presence of warm ions in unmagnetized electron-positron-ion plasmas. The Krylov-Bogoliubov-Mitropolsky (KBM) method is used to derive the nonlinear Schroedinger equation. The dispersive and nonlinear coefficients are obtained which depends on the ion temperature and positron density in electron-positron-ion plasmas. The modulationally stable and unstable regions are studied numerically for a wide range of wave number. It is found that both ion temperature and positron density play a significant role in the formation of bright and dark envelope solitons in electron-positron-ion plasmas.

Mahmood, S. [Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan); Department of Physics and Applied Mathematics, PIEAS, P.O. Nilore, Islamabad 44000 (Pakistan); Siddiqui, Sadiya [Department of Physics and Applied Mathematics, PIEAS, P.O. Nilore, Islamabad 44000 (Pakistan); Jehan, Nusrat [Pakistan Atomic Energy Commission, P.O. Box 1114, Islamabad 44000 (Pakistan)

2011-05-15T23:59:59.000Z

195

LLNL scientists find precipitation, global warming link  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 For immediate release: 11/11/2013 | NR-13-11-04 Lawrence Livermore scientists have found that observed changes in global precipitation are directly affected by human activities. LLNL scientists find precipitation, global warming link Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov LIVERMORE, Calif. -- The rain in Spain may lie mainly on the plain, but the location and intensity of that rain is changing not only in Spain but around the globe. A new study by Lawrence Livermore National Laboratory scientists shows that observed changes in global (ocean and land) precipitation are directly affected by human activities and cannot be explained by natural variability alone. The research appears in the Nov. 11 online edition of the Proceedings of the National Academy of Sciences.

196

External vs. body temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

External vs. body temperature External vs. body temperature Name: jacqui Location: N/A Country: N/A Date: N/A Question: If one's internal body temperature is approximately 98.6, WHY when the external temperature is 98.6 do we feel hot? Since both temperatures are "balanced", shouldn't we feel comfortable? I am assuming here that humidity levels are controlled, and play no factor in the external temperature. Replies: First of all, skin temperature is lower than 98.6F; 98.6F is internal body temperature, so air at 98.6F is hotter than skin. But more important, it is the nervous system, and the cells in your skin that your brain uses to detect temperature that determine whether you "feel" hot or not, not whether the air is hotter than your skin. These are set so that you feel hot when the air is actually colder than your skin. Why? They are probably set to make you feel hot whenever the air is warm enough so that your body has some trouble getting rid of the excess heat it produces through metabolism. This insures that you take some actions to help your body cool off. Like drinking cool water, or reducing exercise

197

On the Linkage between Antarctic Surface Water Stratification and Global Deep-Water Temperature  

Science Conference Proceedings (OSTI)

The suggestion is advanced that the remarkably low static stability of Antarctic surface waters may arise from a feedback loop involving global deep-water temperatures. If deep-water temperatures are too warm, this promotes Antarctic convection, ...

Ralph F. Keeling; Martin Visbeck

2011-07-01T23:59:59.000Z

198

All-India Summer Monsoon Rainfall and Sea Surface Temperatures around Northern Australia and Indonesia  

Science Conference Proceedings (OSTI)

The relationship between Indian summer (JuneSeptember) monsoon rainfall and sea surface temperatures around northern AustraliaIndonesia has been explored using data from 1949 to 1991. Warm sea surface temperatures are generally associated with ...

Neville Nicholls

1995-05-01T23:59:59.000Z

199

The Signature of ENSO in Global Temperature and Precipitation Fields Derived from the Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

Global temperature anomalies associated with ENSO are investigated, making use of a 13-year record of gridded temperature and precipitation data from the microwave sounding unit (MSU). The warm phase of the ENSO cycle during this period was ...

Elena Yulaeva; John M. Wallace

1994-11-01T23:59:59.000Z

200

Modification of Precipitation from Warm CloudsA Review  

Science Conference Proceedings (OSTI)

This review is begun with a brief summary of the current status of our understanding of the physics of precipitation in warm clouds. The impact of warm-cloud precipitation processes on the evolution of the ice phase in supercooled clouds also is ...

William R. Cotton

1982-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Applied engineering on biosystems: the reduction in global warming  

Science Conference Proceedings (OSTI)

This work concerns the problem of decision making in the context of investment allocation in clean technology and in reforestation, aimed at reducing the global warming. In order to model the government actions, fuzzy rules are employed to represent ... Keywords: biosystems modeling, fuzzy control, global warming, optimization, simulation

J. A. M. Felippe de Souza; Marco A. L. Caetano; Douglas F. M. Gherardi; Takashi Yoneyama

2009-11-01T23:59:59.000Z

202

The Abyss of the Nordic Seas Is Warming  

Science Conference Proceedings (OSTI)

Over the past decade, the multiyear oceanographic time series from ocean weather station Mike at 66N, 2E indicate a warming by about 0.01C yr?1 in the deep water of the Norwegian Sea. The time of onset of this warming is depth dependent, ...

Svein sterhus; Tor Gammelsrd

1999-11-01T23:59:59.000Z

203

A Nonlinear Response of Sahel Rainfall to Atlantic Warming  

Science Conference Proceedings (OSTI)

The response over West Africa to uniform warming of the Atlantic Ocean is analyzed using idealized simulations with a regional climate model. With warming of 1 and 1.5 K, rainfall rates increase by 30%50% over most of West Africa. With Atlantic ...

Naresh Neupane; Kerry H. Cook

2013-09-01T23:59:59.000Z

204

A nonlinear response of Sahel rainfall to Atlantic warming  

Science Conference Proceedings (OSTI)

The response over West Africa to uniform warming of the Atlantic Ocean is analyzed using idealized simulations with a regional climate model. With warming of 1 K and 1.5 K, rainfall rates increase by 30-50% over most of West Africa. With Atlantic ...

Naresh Neupane; Kerry H. Cook

205

WOOD FLOORING 1. INTRODUCTION TO WARM AND WOOD FLOORING  

E-Print Network (OSTI)

This chapter describes the methodology used in EPAs Waste Reduction Model (WARM) to estimate streamlined life-cycle greenhouse gas (GHG) emission factors for wood flooring beginning at the waste generation reference point. 1 The WARM GHG emission factors are used to compare the net emissions associated with wood flooring in the following three waste management alternatives: source reduction, combustion, and landfilling.

unknown authors

2012-01-01T23:59:59.000Z

206

WOOD PRODUCTS 1. INTRODUCTION TO WARM AND WOOD PRODUCTS  

E-Print Network (OSTI)

This chapter describes the methodology used in EPAs Waste Reduction Model (WARM) to estimate streamlined life-cycle greenhouse gas (GHG) emission factors for wood products beginning at the point of waste generation. The WARM GHG emission factors are used to compare the net emissions associated with wood products in the following four materials management alternatives: source

unknown authors

2012-01-01T23:59:59.000Z

207

FIBERGLASS INSULATION 1. INTRODUCTION TO WARM AND FIBERGLASS INSULATION  

E-Print Network (OSTI)

This chapter describes the methodology used in EPAs Waste Reduction Model (WARM) to estimate streamlined life-cycle greenhouse gas (GHG) emission factors for fiberglass insulation beginning at the waste generation reference point. 1 The WARM GHG emission factors are used to compare the net emissions associated with fiberglass insulation in the following two waste management alternatives: source reduction and landfilling.

unknown authors

2012-01-01T23:59:59.000Z

208

Cyclones Linked to Pliocene Warming: More Storms in Ancient Past May Have  

NLE Websites -- All DOE Office Websites (Extended Search)

Cyclones Linked to Cyclones Linked to Pliocene Warming Cyclones Linked to Pliocene Warming More Storms in Ancient Past May Have Implications for Future Climate March 21, 2011 | Tags: Climate Research, Franklin Contact: Margie Wylie, mwylie@lbl.gov, +1 510 486 7421 2011-02-28-Fedorov-1.png Figure 1. Simulated hurricane tracks under modern conditions (top) and Pliocene (bottom) overlay sea surface temperatures created by a fully coupled climate model. Images: Chris M. Brierley Scientists searching for clues to Earth's future climate are turning to its dim past, the Pliocene epoch. "We're interested in the Pliocene, because it's the closest analog we have in the past for what could happen in our future," says Chris Brierley, a Yale climate researcher computing at the National Energy Research Scientific Computing Center (NERSC).

209

Evidence for dust emission in the Warm Ionised Medium using WHAM data  

E-Print Network (OSTI)

We have used the WHAM H_alpha survey and Leiden/Dwingeloo HI data to decompose the Far-infrared emission (from 100 to 1000 micron) at high Galactic latitude into components associated with the Warm Ionised Medium (WIM) and the Warm Neutral Medium (WNM). This decomposition is possible for the first time thanks to preliminary WHAM data that cover a significant fraction of the sky (about 10%). We confirm the first detection of dust emission from the WIM (Lagache et al. 1999) and show that the WIM dust temperature and emissivity are very similar to those in the WNM. The analysis suggests moreover that about 25% of the far-IR dust emission at high galactic latitude is uncorrelated with the HI gas. The decomposition again reveals a Cosmic Far-Infrared Background (CFIRB) which is determined for the first time from 100 to 1000 micron using two independant gas tracers.

Lagache, G; Reynolds, R J; Tufte, S L

1999-01-01T23:59:59.000Z

210

Evidence for dust emission in the Warm Ionised Medium using WHAM data  

E-Print Network (OSTI)

We have used the WHAM H_alpha survey and Leiden/Dwingeloo HI data to decompose the Far-infrared emission (from 100 to 1000 micron) at high Galactic latitude into components associated with the Warm Ionised Medium (WIM) and the Warm Neutral Medium (WNM). This decomposition is possible for the first time thanks to preliminary WHAM data that cover a significant fraction of the sky (about 10%). We confirm the first detection of dust emission from the WIM (Lagache et al. 1999) and show that the WIM dust temperature and emissivity are very similar to those in the WNM. The analysis suggests moreover that about 25% of the far-IR dust emission at high galactic latitude is uncorrelated with the HI gas. The decomposition again reveals a Cosmic Far-Infrared Background (CFIRB) which is determined for the first time from 100 to 1000 micron using two independant gas tracers.

G. Lagache; L. M. Haffner; R. J. Reynolds; S. L. Tufte

1999-11-18T23:59:59.000Z

211

Geoengineering: Plan B Remedy for Global Warming Andrew A. Lacis  

NLE Websites -- All DOE Office Websites (Extended Search)

Geoengineering: Plan B Remedy for Global Warming Geoengineering: Plan B Remedy for Global Warming Andrew A. Lacis NASA Goddard Institute for Space Studies Accelerated melting of Greenland ice is a clear indication that consequences of global warming are real and impending. The underlying causes of global warming are well enough understood, but the necessary reduction of greenhouse gases to prevent irreversible climate change is unlikely to happen before the point of no return is reached. To reverse the impending sea level rise, geoengineering counter- measures may be required to counter the current global energy imbalance due to global warming. Of the many proposed remedies, deploying aerosols within the stratosphere offers realistic prospects. Sulfur injections in the lower stratosphere would have the cooling effect of naturally occurring volcanic aerosols. Soot at

212

Sonoluminescence test for equation of state in warm dense matter  

SciTech Connect

In experiments of Single-bubble Sonoluminescence (SBSL), the bubble is heated to temperatures of a few eV in the collapse phase of the oscillation. Our hydrodynamic simulations show that the density inside the bubble can go up to the order of 1 g/cm3, and the electron density due to ionization is 1021 /cm3. So the plasma coupling constant is found to be around 1 and the gas inside the bubble is in the Warm Dense Matter (WDM) regime. We simulate the light emission of SL with an optical model for thermal radiation which takes the finite opacity of the bubble into consideration. The numerical results obtained are compared to the experimental data and found to be very sensitive to the equation of state used. As theories for the equation of state, as well as the opacity data, in the WDM regime are still very uncertain, we propose that SL may be a good low-cost experimental check for the EOS and the opacity data for matter in the WDM regime.

Ng, Siu-Fai; Barnard, J.J.; Leung, P.T.; Yu, S.S.

2008-08-01T23:59:59.000Z

213

Bull Trout Distribution and Abundance in the Waters on and Bordering the Warm Springs Reservation : 2002 Annual Report.  

DOE Green Energy (OSTI)

The range of bull trout (Salvelinus confluentus) in the Deschutes River basin has decreased from historic levels due to many factors including dam construction, habitat degradation, brook trout introduction and eradication efforts. While the bull trout population appears to be healthy in the Metolius River-Lake Billy Chinook system they have been largely extirpated from the upper Deschutes River (Buchanan et al. 1997). Little was known about bull trout in the lower Deschutes basin until BPA funded project No.9405400 began during 1998. In this progress report we describe the findings to date from this multi-year study aimed at determining the life history, habitat needs and limiting factors of bull trout in the lower Deschutes subbasin. Juvenile bull trout and brook trout (Salvelinus fontinalis) relative abundance has been assessed in the Warm Springs River and Shitike Creek since 1999. In the Warm Springs R. the relative densities of juvenile bull trout and brook trout were .003 fish/m{sup 2} and .001 fish/m{sup 2} respectively during 2002. These densities were the lowest recorded in the Warm Springs River during the period of study. In Shitike Cr. the relative densities of juvenile bull trout and brook trout were .025 fish/m{sup 2} and .01 fish/m{sup 2} respectively during 2002. The utility of using index reaches to monitor trends in juvenile bull trout and brook trout relative abundance in the Warm Springs R. has been assessed since 1999. During 2002 the mean relative densities of juvenile bull trout within the 2.4 km study area was higher than what was observed in four index reaches. However, the mean relative densities of brook trout was slightly higher in the index reaches than what was observed in the 2.4 km study area. Habitat use by both juvenile bull trout and brook trout was determined in the Warm Springs R. Juvenile bull trout and brook trout were most abundant in pools and glides. However pools and glides comprised less than 20% of the available habitat in the study area during 2002. Multiple-pass spawning ground surveys were conducted during late August through October in the Warm Springs R. and Shitike Cr. during 2002. One-hundred and thirteen (113) redds were enumerated in the Warm Springs R. and 204 redds were found in Shitike Cr. The number of redds enumerated in both the Warm Springs R. and Shitike Cr. were the most redds observed since surveys began in 1998. Spatial and temporal distribution in spawning within the Warm Springs R. and Shitike Cr. is discussed. Juvenile emigration has been monitored in Shitike Creek since 1996. A total of 312 juveniles were estimated to have emigrated from Shitike Cr. during the spring, 2002. Adult escapement was monitored in the Warm Springs R. and Shitike Cr. Thirty adults were recorded at the Warm Springs National Fish Hatchery weir during 2002. This was the highest number of spawning adults recorded to date. A weir equipped with an underwater video camera near the spawning grounds was operated in the Warm Springs R. Thirty-one adults were recorded at the weir in day counts. The adult trap in Shitike Cr. was unsuccessful in capturing adult bull trout during 2002 due to damage from a spring high water event. Thermographs were placed throughout Warm Springs R. and Shitike Cr. to monitor water temperatures during bull trout migration, holding and spawning/rearing periods. During 1999-2002 water temperatures ranged from 11.8-15.4 C near the mouths during adult migration; 11.4-14.6 C during pre-spawning holding; and 6.5-8.4 C during adult spawning and juvenile rearing.

Brun, Christopher V.; Dodson, Rebekah

2003-03-01T23:59:59.000Z

214

The Interaction of Radiative and Dynamical Processes during a Simulated Sudden Stratospheric Warming  

Science Conference Proceedings (OSTI)

An analysis of a spontaneous sudden stratospheric warming that occurred during a 2-year integration of the Langley Research Center Atmospheric Simulation Model is presented. The simulated warming resembles observed wave 1&rdquo warmings in the ...

R. B. Pierce; W. T. Blackshear; W. L. Grose; R. E. Turner; T. D. Fairlie

1993-12-01T23:59:59.000Z

215

The Predictability of Stratospheric Warming Events: More from the Troposphere or the Stratosphere?  

Science Conference Proceedings (OSTI)

The roles of the stratosphere and the troposphere in determining the predictability of stratospheric final warming and sudden warming events are evaluated in an idealized atmospheric model. For each stratospheric warming event simulated in the ...

Lantao Sun; Walter A. Robinson; Gang Chen

2012-02-01T23:59:59.000Z

216

The January Thaw at New Brunswick, NJ  

Science Conference Proceedings (OSTI)

An investigation of the January thaw phenomenon, a period of unseasonable warmth, was conducted using daily maximum temperatures recorded at New Brunswick, New Jersey, from 18581981. Student's t-tests, comparing long-term means of daily maximum ...

John R. Lanzante; Robert P. Harnack

1982-07-01T23:59:59.000Z

217

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

p.m. on April 19, 2007) Unseasonably cold temperatures in most regions of the country led to increases of both spot and futures prices since Wednesday, April 4. On the week...

218

Symmetry energy of warm nuclear systems  

E-Print Network (OSTI)

The temperature dependence of the symmetry energy and symmetry free energy coefficients of infinite nuclear matter and of finite nuclei is investigated. For infinite matter, both these coefficients are found to have a weaker dependence on temperature at densities close to saturation; at low but homogeneous densities, the temperature dependence becomes stronger. For finite systems, different definitions of symmetry energy coefficients are encountered in the literature yielding different values. A resolution to this problem is suggested from a global liquid-drop-inspired fit of the energies and free energies of a host of nuclei covering the entire periodic table. The hot nucleus is modeled in a subtracted finite-temperature-Thomas-Fermi framework, with dynamical surface phonon coupling to nucleonic motion plugged in. Contrary to infinite nuclear matter, a substantial change in the symmetry energy coefficients is observed for finite nuclei with temperature.

Agrawal, B K; Samaddar, S K; Centelles, M; Vias, X

2013-01-01T23:59:59.000Z

219

Symmetry energy of warm nuclear systems  

E-Print Network (OSTI)

The temperature dependence of the symmetry energy and symmetry free energy coefficients of infinite nuclear matter and of finite nuclei is investigated. For infinite matter, both these coefficients are found to have a weaker dependence on temperature at densities close to saturation; at low but homogeneous densities, the temperature dependence becomes stronger. For finite systems, different definitions of symmetry energy coefficients are encountered in the literature yielding different values. A resolution to this problem is suggested from a global liquid-drop-inspired fit of the energies and free energies of a host of nuclei covering the entire periodic table. The hot nucleus is modeled in a subtracted finite-temperature-Thomas-Fermi framework, with dynamical surface phonon coupling to nucleonic motion plugged in. Contrary to infinite nuclear matter, a substantial change in the symmetry energy coefficients is observed for finite nuclei with temperature.

B. K. Agrawal; J. N. De; S. K. Samaddar; M. Centelles; X. Vias

2013-08-26T23:59:59.000Z

220

NETL: Gasification Systems - Integrated Warm Gas Multicontaminant Cleanup  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Project Number: DE-FC26-05NT42459 Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Project ID: DE-FC26-05NT42459 Objective: The objective is to develop a warm multi-contaminant syngas cleaning system for operation between 300 and 700° F. This project will continue development of the RTI warm syngas cleanup technology suite. Based on the field testing results with real syngas from Eastman Chemical Company's gasifier under DOE Contract DE-AC26-99FT40675, additional technical issues need to be addressed to move the technologies used in warm syngas cleaning further towards commercial deployment especially for chemical/fuels production. These issues range from evaluation of startup and standby options for the more developed desulfurization processes to integration and actual pilot plant testing with real coal-derived syngas for the technologies that were tested at bench scale during Phase I. Development shall continue of the warm gas syngas cleaning technology platform through a combination of lab-scale R&D and larger integrated pilot plant testing with real coal-derived syngas as well as process/systems analysis and simulation for optimization of integration and intensification.

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Climatic Warming of Atlantic Intermediate Waters  

Science Conference Proceedings (OSTI)

Interdecadal temperature variability of the Atlantic Ocean is investigated by differencing hydrographic sections taken from the 1920s through the 1990s. A comprehensive reanalysis of North Atlantic sections and the inclusion of South Atlantic ...

Brian K. Arbic; W. Brechner Owens

2001-10-01T23:59:59.000Z

222

Global Ocean Warming: An Acoustic Measure?  

Science Conference Proceedings (OSTI)

Explosions of 300 lbs of TNT at 1 km depth off Perth, Australia were recorded on Bermuda hydrophones, demonstrating 30 years age the feasibility of global acoustic transmissions. Climate-induced changes in ocean temperature (and hence in sound ...

W. H. Munk; A. M. G. Forbes

1989-11-01T23:59:59.000Z

223

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

10, 2001 10, 2001 Price surges on Monday and Friday of last week overshadowed 3 straight days of decreases midweek, as nearly every major market location showed Friday-to-Friday gains. At the Henry Hub, the spot price gained 36 cents from the previous Friday to end the week at $2.11 per million Btu (MMBtu). On the futures market, in its first full week of trading as the near-month contract, the price of the NYMEX contract for January delivery at the Henry Hub declined $0.133 per MMBtu to settle on Friday at $2.568. The unseasonably warm temperatures that have blanketed nearly the entire country east of the Rocky Mountains continued, with specific-day high-temperature records being set at numerous locations in the Northeast, Midwest, and Midcontinent (Temperature Map)(Temperature Deviation Map).

224

Are You Keeping Warm This Winter? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? January 23, 2013 - 4:33pm Addthis An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Get an energy audit and learn about your heating options to warm your home while saving money. Last week, I turned on the weather forecast to find that the entire central United States was hovering somewhere between 5 and 20 degrees. Talk about frigid! I've lived all over the country, and I know how incredibly miserable it is to do anything when the high barely ekes above 0 degrees

225

Building Energy Software Tools Directory: AkWarm  

NLE Websites -- All DOE Office Websites (Extended Search)

AkWarm AkWarm AkWarm logo. Innovative, user-friendly, Windows-based software for home energy modeling. AkWarm is designed for weatherization assessment and the EPA Energy Star Home energy rating program. Features include: Graphical display of energy use by building component, improvement options analysis, design heat load, calculates CO2 emissions, and shows code compliance. Utility, weather data, and other libraries are maintained in a database library for easy updating. A separate database is available to archive all input and output data for detailed analysis of housing types, trends, amd energy use. Keywords home energy rating systems, home energy, residential modeling, weatherization Validation/Testing N/A Expertise Required Basic understanding of building construction, with a minimal level of

226

Are You Keeping Warm This Winter? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? Are You Keeping Warm This Winter? January 23, 2013 - 4:33pm Addthis An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. An efficient heater can save money and energy while keeping you warmer. | Photo by Dennis Schroeder, NREL 20288. Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Get an energy audit and learn about your heating options to warm your home while saving money. Last week, I turned on the weather forecast to find that the entire central United States was hovering somewhere between 5 and 20 degrees. Talk about frigid! I've lived all over the country, and I know how incredibly miserable it is to do anything when the high barely ekes above 0 degrees

227

Wildfires may contribute more to global warming than previously predicted  

NLE Websites -- All DOE Office Websites (Extended Search)

Wildfires may contribute more to global warming Wildfires may contribute more to global warming Wildfires may contribute more to global warming than previously predicted They suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show. July 9, 2013 Haze of smoke emanating from the 2011 Las Conchas, NM fire. Haze of smoke emanating from the 2011 Las Conchas, NM fire. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The fact that we are experiencing more fires and that climate change may increase fire frequency underscores the need to include these specialized particles in the computer models, and our results show how this can be done," Dubey said. Particle analysis shows "tar ball" effect is significant LOS ALAMOS, N.M., July 9, 2013-Wildfires produce a witch's brew of

228

Wildfires may contribute more to global warming than previously predicted  

NLE Websites -- All DOE Office Websites (Extended Search)

Wildfires may contribute more to global warming Wildfires may contribute more to global warming Wildfires may contribute more to global warming than previously predicted They suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show. July 9, 2013 Haze of smoke emanating from the 2011 Las Conchas, NM fire. Haze of smoke emanating from the 2011 Las Conchas, NM fire. Contact Nancy Ambrosiano Communications Office (505) 667-0471 Email "The fact that we are experiencing more fires and that climate change may increase fire frequency underscores the need to include these specialized particles in the computer models, and our results show how this can be done," Dubey said. Particle analysis shows "tar ball" effect is significant LOS ALAMOS, N.M., July 9, 2013-Wildfires produce a witch's brew of

229

Warm Weather and the Daily Commute | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Warm Weather and the Daily Commute Warm Weather and the Daily Commute Warm Weather and the Daily Commute May 7, 2013 - 12:02pm Addthis Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Biking to work helps you get some exercise while reducing your carbon footprint. | Photo courtesy of iStockphoto.com/olaser Elizabeth Spencer Communicator, National Renewable Energy Laboratory How can I participate? Check out options for busing or carpooling in your area or, if you live close, try walking or biking to work. You know the weather is starting to warm up when you start hearing about those "bike, bus, or walk to work" challenges. And while my local news just started drumming up publicity for theirs, I've seen these events pop up in

230

The Sensitivity of Mountain Snowpack Accumulation to Climate Warming  

Science Conference Proceedings (OSTI)

Controls on the sensitivity of mountain snowpack accumulation to climate warming (?S) are investigated. This is accomplished using two idealized, physically based models of mountain snowfall to simulate snowpack accumulation for the Cascade ...

Justin R. Minder

2010-05-01T23:59:59.000Z

231

Successive Modulation of ENSO to the Future Greenhouse Warming  

Science Conference Proceedings (OSTI)

The multidecadal modulation of the El NioSouthern Oscillation (ENSO) due to greenhouse warming has been analyzed herein by means of diagnostics of Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) coupled general ...

Soon-Il An; Jong-Seong Kug; Yoo-Geun Ham; In-Sik Kang

2008-01-01T23:59:59.000Z

232

Mechanisms of Remote Tropical Surface Warming during El Nio  

Science Conference Proceedings (OSTI)

The authors demonstrate through atmospheric general circulation model (the Community Climate Model version 3.10) simulations of the 1997/98 El Nio that the observed remote (i.e., outside the Pacific) tropical land and ocean surface warming ...

John C. H. Chiang; Benjamin R. Lintner

2005-10-01T23:59:59.000Z

233

Small-Scale Variability in Warm Continental Cumulus Clouds  

Science Conference Proceedings (OSTI)

We have analyzed small-scale fluctuations in microphysical, dynamical and thermodynamical parameters measured in two warm cumulus clouds during the Cooperative Convective Precipitation Experiment (CCOPE) project (1981) in light of predictions of ...

P. H. Austin; M. B. Baker; A. M. Blyth; J. B. Jensen

1985-06-01T23:59:59.000Z

234

Warm Rain Study in HawaiiRain Initiation  

Science Conference Proceedings (OSTI)

More than 300 hours of aircraft flights were conducted in Hawaii from 1977 to 1979 to study precipitation mechanisms in warm rain. Airborne instruments were used to measure drop size distributions over the size range from cloud droplets to ...

Tsutomu Takahashi

1981-02-01T23:59:59.000Z

235

Does Global Warming Cause Intensified Interannual Hydroclimate Variability?  

Science Conference Proceedings (OSTI)

The idea that global warming leads to more droughts and floods has become commonplace without clear indication of what is meant by this statement. Here, the authors examine one aspect of this problem and assess whether interannual variability of ...

Richard Seager; Naomi Naik; Laura Vogel

2012-05-01T23:59:59.000Z

236

NOAA Predicts Mixed Bag of Drought, Flooding and Warm Weather...  

NLE Websites -- All DOE Office Websites (Extended Search)

NOAA Predicts Mixed Bag of Drought, Flooding and Warm Weather for Spring Print E-mail NOAA 2013 Spring Outlook Map Thursday, March 21, 2013 Featured by NOAA, a member of the U.S....

237

Warm Conveyor Belts in Idealized Moist Baroclinic Wave Simulations  

Science Conference Proceedings (OSTI)

This idealized modeling study of moist baroclinic waves addresses the formation of moist ascending airstreams, so-called warm conveyor belts (WCBs), their characteristics, and their significance for the downstream flow evolution. Baroclinic wave ...

Sebastian Schemm; Heini Wernli; Lukas Papritz

2013-02-01T23:59:59.000Z

238

A global warming forum: Scientific, economic, and legal overview  

SciTech Connect

A Global Warming Forum covers in detail five general subject areas aimed at providing first, the scientific background and technical information available on global warming and second, a study and evaluation of the role of economic, legal, and political considerations in global warming. The five general topic areas discussed are the following: (1) The role of geophysical and geoengineering methods to solve problems related to global climatic change; (2) the role of oceanographic and geochemical methods to provide evidence for global climatic change; (3) the global assessment of greenhouse gas production including the need for additional information; (4) natural resource management needed to provide long-term global energy and agricultural uses; (5) legal, policy, and educational considerations required to properly evaluate global warming proposals.

Geyer, R.A. (ed.)

1993-01-01T23:59:59.000Z

239

Influence of Stratospheric Sudden Warming on AIRS Midtropospheric CO2  

Science Conference Proceedings (OSTI)

Midtropospheric CO2 retrievals from the Atmospheric Infrared Sounder (AIRS) were used to explore the influence of stratospheric sudden warming (SSW) on CO2 in the middle to upper troposphere. To choose the SSW events that had strong coupling ...

Xun Jiang; Jingqian Wang; Edward T. Olsen; Thomas Pagano; Luke L. Chen; Yuk L. Yung

2013-08-01T23:59:59.000Z

240

Rapid Development of the Tropical Cyclone Warm Core  

Science Conference Proceedings (OSTI)

This paper presents a simple theoretical argument to isolate the conditions under which a tropical cyclone can rapidly develop a warm-core thermal structure and subsequently approach a steady state. The theoretical argument is based on the ...

Jonathan L. Vigh; Wayne H. Schubert

2009-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Greenhouse Warming: Is the Mid-Holocene a Good Analogue?  

Science Conference Proceedings (OSTI)

The mid-Holocene period (from approximately 9000 to 6000 years before present) is often suggested as an analogue for enhanced greenhouse warming. The changes in net radiative forcing at the top of the atmosphere are very different; increases in ...

John F. B. Mitchell

1990-11-01T23:59:59.000Z

242

Sudden Stratospheric Warming and Anomalous U.S. Weather  

Science Conference Proceedings (OSTI)

Severe distortion of tropospheric circulation is associated with major sudden stratospheric warming (SSW) events. This distortion consisting primarily of weakening of smaller-scale synoptic mats and development of strong blocking activity, is ...

James P. McGuirk; Donald A. Douglas

1988-01-01T23:59:59.000Z

243

The Dynamics of Northern Hemisphere Stratospheric Final Warming Events  

Science Conference Proceedings (OSTI)

A lag composite analysis is performed of the zonal-mean structure and dynamics of Northern Hemisphere stratospheric final warming (SFW) events. SFW events are linked to distinct zonal wind deceleration signatures in the stratosphere and ...

Robert X. Black; Brent A. McDaniel

2007-08-01T23:59:59.000Z

244

Mesoscale Predictability of an Extreme Warm-Season Precipitation Event  

Science Conference Proceedings (OSTI)

A mesoscale model is used to investigate the mesoscale predictability of an extreme precipitation event over central Texas on 29 June 2002 that lasted through 7 July 2002. Both the intrinsic and practical aspects of warm-season predictability, ...

Fuqing Zhang; Andrew M. Odins; John W. Nielsen-Gammon

2006-04-01T23:59:59.000Z

245

Interpretation of Simulated Global Warming Using a Simple Model  

Science Conference Proceedings (OSTI)

A simple energy balance model with two parameters, an effective heat capacity and an effective climate sensitivity, is used to interpret six GCM simulations of greenhouse gasinduced global warming. By allowing the parameters to vary in time, the ...

I. G. Watterson

2000-01-01T23:59:59.000Z

246

Inferences of Predictability Associated with Warm Season Precipitation Episodes  

Science Conference Proceedings (OSTI)

Herein preliminary findings are reported from a radar-based climatology of warm season precipitation episodes. Episodes are defined as timespace clusters of heavy precipitation that often result from sequences of organized convection such as ...

R. E. Carbone; J. D. Tuttle; D. A. Ahijevych; S. B. Trier

2002-07-01T23:59:59.000Z

247

Mechanisms Affecting the Overturning Response in Global Warming Simulations  

Science Conference Proceedings (OSTI)

Climate models used to produce global warming scenarios exhibit widely diverging responses of the thermohaline circulation (THC). To investigate the mechanisms responsible for this variability, a regional Atlantic Ocean model driven with forcing ...

U. Schweckendiek; J. Willebrand

2005-12-01T23:59:59.000Z

248

Long-Term Evolution of Elongated Warm Eddies  

Science Conference Proceedings (OSTI)

The purpose of this research is to investigate the evolution of elongated warm eddies. A shallow-water, reduced-gravity, primitive equation model is used to perform a multicase numerical experiment, which includes vortices of very different ...

Edgar G. Pava; Manuel Lpez

1994-10-01T23:59:59.000Z

249

Warm-Air Intrusions in Arizonas Meteor Crater  

Science Conference Proceedings (OSTI)

Episodic nighttime intrusions of warm air, accompanied by strong winds, enter the enclosed near-circular Meteor Crater basin on clear, synoptically undisturbed nights. Data analysis is used to document these events and to determine their spatial ...

Bianca Adler; C. David Whiteman; Sebastian W. Hoch; Manuela Lehner; Norbert Kalthoff

2012-06-01T23:59:59.000Z

250

Diurnal Variations of Warm-Season Precipitation over Northern China  

Science Conference Proceedings (OSTI)

This study examines the diurnal variations of the warm-season precipitation over northern China using the high-resolution precipitation products obtained from the Climate Prediction Centers morphing technique (CMORPH) during MayAugust of 2003...

Huizhong He; Fuqing Zhang

2010-04-01T23:59:59.000Z

251

A 15-Year Climatology of Warm Conveyor Belts  

Science Conference Proceedings (OSTI)

This study presents the first climatology of so-called warm conveyor belts (WCBs), strongly ascending moist airstreams in extratropical cyclones that, on the time scale of 2 days, rise from the boundary layer to the upper troposphere. The ...

Sabine Eckhardt; Andreas Stohl; Heini Wernli; Paul James; Caroline Forster; Nicole Spichtinger

2004-01-01T23:59:59.000Z

252

Regulation of Moist Convection over the West Pacific Warm Pool  

Science Conference Proceedings (OSTI)

The mechanisms that regulate moist convection over the warm tropical oceans are not well understood. One school of thought holds that convection is caused by the convergence of moisture, which in turn is produced by an independent dynamical ...

David J. Raymond

1995-11-01T23:59:59.000Z

253

Definition: Warm or Steaming Ground | Open Energy Information  

Open Energy Info (EERE)

heat is conducted to the earth's surface, warming the ground and sometimes causing steam to form when water is present. Ret LikeLike UnlikeLike You like this.Sign Up to see...

254

Warming and Freshening in the Abyssal Southeastern Indian Ocean  

Science Conference Proceedings (OSTI)

Warming and freshening of abyssal waters in the eastern Indian Ocean between 1994/95 and 2007 are quantified using data from two closely sampled high-quality occupations of a hydrographic section extending from Antarctica northward to the ...

Gregory C. Johnson; Sarah G. Purkey; John L. Bullister

2008-10-01T23:59:59.000Z

255

Observations of non-collective x-ray scattering in warm dense carbon plasma  

Science Conference Proceedings (OSTI)

An experiment for observing the spectrally resolved non-collective x-ray scattering in warm dense carbon plasma is presented in this paper. The experiment used Ta M-band x-rays to heat a foamed carbon cylinder sample isochorically and measured the scattering spectrum with a HOPG crystal spectrometer. The spectrum was compared with the calculation results using a Born-Mermin-approximation model. The best fitting was found at an electron temperature of T{sub e}=34 eV and an electron density of n{sub e}=1.6 Multiplication-Sign 10{sup 23}cm{sup -3}.

Bao Lihua [Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-981, Mianyang 621900 (China); Department of Engineering Physics, Tsinghua University, Beijing 100084 (China); Zhang Jiyan; Zhao Yang; Ding Yongkun [Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-981, Mianyang 621900 (China); Zhang Xiaoding [Research Center of Laser Fusion, China Academy of Engineering Physics, P. O. Box 919-981, Mianyang 621900 (China); University of Science and Technology of China, Hefei 230026 (China)

2012-12-15T23:59:59.000Z

256

Large amplitude solitary waves in a warm magnetoplasma with kappa distributed electrons  

SciTech Connect

The large amplitude nonlinear ion acoustic solitary wave propagating obliquely to an external magnetic field in a magnetized plasma with kappa distributed electrons and warm ions is investigated through deriving energy-balance-like expression involving a Sagdeev potential. Analytical and numerical calculations of the values of Mach number reveal that both of subsonic and supersonic electrostatic solitary structures can exist in this system. The influence on the soliton characteristics of relevant physical parameters such as the Mach number, the superthermal parameter, the directional cosine, the ratio of ion-to-electron temperature, and the ion gyrofrequency has been investigated.

El-Tantawy, S. A. [Department of Physics, Faculty of Science, Port Said University, Port Said 42521 (Egypt); El-Bedwehy, N. A. [Department of Mathematics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt); Abd El-Razek, H. N. [Department of Physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt); Mahmood, S. [Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore, Islamabad 44000 (Pakistan); National Centre for Physics, Quaid-i-Azam University Campus, Shahdra Valley Road, Islamabad 44000 (Pakistan)

2013-02-15T23:59:59.000Z

257

Modeling deuterium fractionation in cold and warm molecular environments with large chemical networks  

E-Print Network (OSTI)

Observations of deuterated species have long proven essential to probe properties and thermal history of various astrophysical environments. We present an elaborated chemical model that includes tens of thousands of reactions with multi-deuterated species, both gas-phase and surface, in which the most recent information on deuterium chemistry is implemented. A detailed study of the chemical evolution under wide range of temperatures and densities typical of cold molecular cores, warm protostellar envelopes, and hot cores/corinos is performed. We consider two cases of initial abundances, with 1) mainly atomic composition and all deuterium locked in HD, and 2) molecular abundances accumulated at 1 Myr of the evolution of a cold prestellar core. We indicate deuterated species that are particularly sensitive to temperature gradients and initial chemical composition. Many multiply-deuterated species produced at 10 K by exothermic ion-molecule chemistry retain large abundances even when temperature rises above 100 ...

Albertsson, T; Henning, Th

2013-01-01T23:59:59.000Z

258

Climate Variability and the Frequency of Extreme Temperature Events for Nine Sites across Canada: Implications for Power Usage  

Science Conference Proceedings (OSTI)

To study the impact of incremental climatic warming on summer extreme temperature event frequency, the historical record of daily maximum June, July, and August temperatures was analyzed for nine sites across Canada. It was found that all of ...

Andrew F. Colombo; David Etkin; Bryan W. Karney

1999-08-01T23:59:59.000Z

259

Warm Stratopause in the Antarctic Winter  

Science Conference Proceedings (OSTI)

The fact that the temperature near the stratopause in the polar night is remarkably higher in the Antarctic than in the Arctic is described. The reason why the stratopause can exist in the polar night and be warmer in the Antarctic is considered ...

Hiroshi Kanzawa

1989-02-01T23:59:59.000Z

260

Do Changes in the Midlatitude Circulation Have Any Impact on the Arctic Surface Air Temperature Trend?  

Science Conference Proceedings (OSTI)

The warming of the near-surface air in the Arctic region has been larger than the global mean surface warming. There is general agreement that the Arctic amplification of the surface air temperature (SAT) trend to a considerable extent is due to ...

R. G. Graversen

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

The Impact of a Changing Southern Hemisphere Annular Mode on Antarctic Peninsula Summer Temperatures  

Science Conference Proceedings (OSTI)

Since the mid-1960s, rapid regional summer warming has occurred on the east coast of the northern Antarctic Peninsula, with near-surface temperatures increasing by more than 2C. This warming has contributed significantly to the collapse of the ...

Gareth J. Marshall; Andrew Orr; Nicole P. M. van Lipzig; John C. King

2006-10-01T23:59:59.000Z

262

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

3, 2001 3, 2001 Spot prices at the Henry Hub remain low for this time of year, as prices declined 16 cents from Friday-to-Friday. The spot price rose $0.50 per MMBtu from Monday to Wednesday, and then fell almost 60 cents by Friday to trade for $1.77 at the end of the week. Concern about the final resolution of the surprising decline of the Enron Corporation appears to be contributing to the price variability on the spot market. On the NYMEX futures market the December contract closed on Wednesday at $2.316 per MMBtu, more than $1.00 below what it began trading for as the near-month contract in late October. The unseasonably warm temperatures that have dominated the weather in much of the country continued last week in the eastern portion of the country. (Temperature Map) (Temperature Deviation

263

Warming and glacier recession in the Rakaia valley, Southern Alps of New Zealand, during Heinrich Stadial 1  

Science Conference Proceedings (OSTI)

The termination of the last ice age featured a major reconfiguration of Earth's climate and cryosphere, yet the underlying causes of these massive changes continue to be debated. Documenting the spatial and temporal variations of atmospheric temperature during deglaciation can help discriminate among potential drivers. Here, we present a 10Be surface-exposure chronology and glaciological reconstruction of ice recession following the Last Glacial Maximum (LGM) in the Rakaia valley, Southern Alps of New Zealand. Innermost LGM moraines at Big Ben have an age of 17,840 +/- 240 yrs, whereas ice-marginal moraines or ice-molded bedrock surfaces at distances up-valley from Big Ben of 12.5 km (Lake Coleridge), approximately 25 km (Castle Hill), approximately 28 km (Double Hill), approximately 43 km (Prospect Hill), and approximately 58 km (Reischek knob) have ages of 17,020 +/- 70 yrs, 17,100 +/- 110 yrs, 16,960 +/- 370 yrs, 16,250 +/- 340 yrs, and 15,660 +/- 160 yrs, respectively. These results indicate extensive recession of the Rakaia glacier, which we attribute primarily to the effects of climatic warming. In conjunction with geomorphological maps and a glaciological reconstruction for the Rakaia valley, we use our chronology to infer timing and magnitude of past atmospheric temperature changes. Compared to an overall temperature rise of approximately 4.65?degrees C between the end of the LGM and the start of the Holocene, the glacier recession between approximately 17,840 and approximately 15,660 yrs ago is attributable to a net temperature increase of approximately 4.0?degrees C (from -6.25 to -2.25?degrees C), accounting for approximately 86% of the overall warming. Approximately 3.75?degrees C (approximately 70%) of the warming occurred between approximately 17,840 and approximately 16,250 yrs ago, with a further 0.75?degrees C (approximately 16%) increase between approximately 16,250 and approximately 15,660 yrs ago. A sustained southward shift of the Subtropical Front (STF) south of Australia between approximately 17,800 and approximately 16,000 yrs ago coincides with the warming over the Rakaia valley, and suggests a close link between Southern Ocean frontal boundary positions and southern mid-latitude climate. Most of the deglacial warming in the Southern Alps occurred during the early part of Heinrich Stadial 1 (HS1) of the North Atlantic region. Because the STF is associated with the position of the westerly wind belt, our findings support the concept that a southward shift of Earth's wind belts accompanied the early part of HS1 cooling in the North Atlantic, leading to warming and deglaciation in southern middle latitudes.

Aaron E. Putnam; Joerg M. Schaefe; George H .Denton; DavidJ. A. Barrell; Bjrn G. Andersen; Tobias N.B. Koffman; Ann V. Rowan; Robert C. Finkel; Dylan H. Rood; Roseanne Schwartz; Marcus J. Vandergoes; Mitchell A. Plummer; Simon H. Brocklehurst; Samuel E. Kelley; Kathryn L. Ladig

2013-11-01T23:59:59.000Z

264

Sorption Mechanisms for Mercury Capture in Warm Post-Gasification Gas Clean-Up Systems  

SciTech Connect

The research was directed towards a sorbent injection/particle removal process where a sorbent may be injected upstream of the warm gas cleanup system to scavenge Hg and other trace metals, and removed (with the metals) within the warm gas cleanup process. The specific objectives of this project were to understand and quantify, through fundamentally based models, mechanisms of interaction between mercury vapor compounds and novel paper waste derived (kaolinite + calcium based) sorbents (currently marketed under the trade name MinPlus). The portion of the research described first is the experimental portion, in which sorbent effectiveness to scavenge metallic mercury (Hg{sup 0}) at high temperatures (>600 C) is determined as a function of temperature, sorbent loading, gas composition, and other important parameters. Levels of Hg{sup 0} investigated were in an industrially relevant range ({approx} 25 {micro}g/m{sup 3}) although contaminants were contained in synthetic gases and not in actual flue gases. A later section of this report contains the results of the complementary computational results.

Jost Wendt; Sung Jun Lee; Paul Blowers

2008-09-30T23:59:59.000Z

265

An Observation of Frontal Wave Development on a Shelf-Slope/Warm Core Ring Front Near the Shelf Break South of New England  

Science Conference Proceedings (OSTI)

Small-scale waves have been observed near 40N, 6830?W in specially enhanced satellite imagery of a strong temperature front formed in May 1979, between the shelf/slope-water front and warm core ring 79-B. Thew frontal waves had a wavelength of ...

S. R. Ramp; R. C. Beardsley; R. Legeckis

1983-05-01T23:59:59.000Z

266

The Effects of the Gulf of California SSTs on Warm-Season Rainfall in the Southwestern United States and Northwestern Mexico: A Regional Model Study  

Science Conference Proceedings (OSTI)

The impacts of the sea surface temperatures (SSTs) in the northern Gulf of California (GC) on warm-season rainfall in the ArizonaNew Mexico (AZNM) and the northwestern Mexico (NWM) regions associated with the North American monsoon (NAM) are ...

Jinwon Kim; Jongyoun Kim; John D. Farrara; John O. Roads

2005-12-01T23:59:59.000Z

267

Heterotrophic Soil Respiration in Warming Experiments: Using Microbial Indicators to Partition Contributions from Labile and Recalcitrant Soil Organic Carbon. Final Report  

SciTech Connect

The central objective of the proposed work was to develop a genomic approach (nucleic acid-based) that elucidates the mechanistic basis for the observed impacts of experimental soil warming on forest soil respiration. The need to understand the mechanistic basis arises from the importance of such information for developing effective adaptation strategies for dealing with projected climate change. Specifically, robust predictions of future climate will permit the tailoring of the most effective adaptation efforts. And one of the greatest uncertainties in current global climate models is whether there will be a net loss of carbon from soils to the atmosphere as climate warms. Given that soils contain approximately 2.5 times as much carbon as the atmosphere, a net loss could lead to runaway climate warming. Indeed, most ecosystem models predict that climate warming will stimulate microbial decomposition of soil carbon, producing such a positive feedback to rising global temperatures. Yet the IPCC highlights the uncertainty regarding this projected feedback. The uncertainty arises because although warming-experiments document an initial increase in the loss of carbon from soils, the increase in respiration is short-lived, declining to control levels in a few years. This attenuation could result from changes in microbial physiology with temperature. We explored possible microbial responses to warming using experiments and modeling. Our work advances our understanding of how soil microbial communities and their activities are structured, generating insight into how soil carbon might respond to warming. We show the importance of resource partitioning in structuring microbial communities. Specifically, we quantified the relative abundance of fungal taxa that proliferated following the addition of organic substrates to soil. We added glycine, sucrose, cellulose, lignin, or tannin-protein to soils in conjunction with 3-bromo-deoxyuridine (BrdU), a nucleotide analog. Active microbes absorb BrdU from the soil solution; if they multiply in response to substrate additions, they incorporate the BrdU into their DNA. After allowing soils to incubate, we extracted BrdU-labeled DNA and sequenced the ITS regions of fungal rDNA. Fungal taxa that proliferated following substrate addition were likely using the substrate as a resource for growth. We found that the structure of active fungal communities varied significantly among substrates. The active fungal community under glycine was significantly different from those under other conditions, while the active communities under sucrose and cellulose were marginally different from each other and the control. These results indicate that the overall community structure of active fungi was altered by the addition of glycine, sucrose, and cellulose and implies that some fungal taxa respond to changes in resource availability. The community composition of active fungi is also altered by experimental warming. We found that glycine-users tended to increase under warming, while lignin-, tannin/protein-, and sucrose-users declined. The latter group of substrates requires extracellular enzymes for use, but glycine does not. It is possible that warming selects for fungal species that target, in particular, labile substrates. Linking these changes in microbial communities and resource partitioning to soil carbon dynamics, we find that substrate mineralization rates are, in general, significantly lower in soils exposed to long-term warming. This suggests that microbial use of organic substrates is impaired by warming. Yet effects are dependent on substrate identity. There are fundamental differences in the metabolic capabilities of the communities in the control and warmed soils. These differences might relate to the changes in microbial community composition, which appeared to be associated with groups specialized on different resources. We also find that functional responses indicate temperature acclimation of the microbial community. There are distinct seasonal patterns and to long-term soil warming, with

Bradford, M A; Melillo, J M; Reynolds, J F; Treseder, K K; Wallenstein, M D

2010-06-10T23:59:59.000Z

268

Legendary West Virginia Senior Citizen Stays Warm With New Furnace |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Legendary West Virginia Senior Citizen Stays Warm With New Furnace Legendary West Virginia Senior Citizen Stays Warm With New Furnace Legendary West Virginia Senior Citizen Stays Warm With New Furnace April 1, 2010 - 7:16pm Addthis Joshua DeLung For the last 56 years, Beulah Sisk has lived in the same house in Princeton, W.Va. Beulah, who worked for 25 years at Lloyd's Pastry Shop, is well known in Princeton. People still see her on the streets today and recognize her as an icon in the community. After a wind storm damaged Beulah's home last year, it came as no surprise when a senior center employee, concerned for Beulah's safety, told her about the weatherization assistance program. "A tree fell on my house and damaged a lot of things, including my furnace," Beulah says. "I tried to have it repaired, but it still

269

NETL: Gasification Systems - Warm Gas Multi-Contaminant Removal System  

NLE Websites -- All DOE Office Websites (Extended Search)

Warm Gas Multi-Contaminant Removal System Warm Gas Multi-Contaminant Removal System Project Number: DE-SC00008243 TDA Research, Inc. is developing a high-capacity, low-cost sorbent that removes anhydrous ammonia (NH3), mercury (Hg), and trace contaminants from coal- and coal/biomass-derived syngas. The clean-up system will be used after the bulk warm gas sulfur removal step, and remove NH3 and Hg in a regenerable manner while irreversibly capturing all other trace metals (e.g., Arsenic, Selenium) reducing their concentrations to sub parts per million (ppm) levels. Current project plans include identifying optimum chemical composition and structure that provide the best sorbent performance for removing trace contaminants, determining the effect of operating parameters, conducting multiple-cycle experiments to test the life of the sorbent for NH3 and Hg removal, and conducting a preliminary design of the sorbent reactor.

270

Stay Warm in Your Apartment | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stay Warm in Your Apartment Stay Warm in Your Apartment Stay Warm in Your Apartment October 19, 2009 - 11:43am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Yes, the Ghost of Winters Future has officially knocked on our front doors again. The leaves here in Washington, D.C., have started to turn toward their colorful crescendo, that spectacular finish before their end on the chilly ground. It makes me cold just thinking about it. Like me, you're probably not opening your windows much at night anymore. I'm holding out still, surrendering a little more of my beloved fresh air each night and dreading that first night when I have to pop the heater on. Last night, I only open my window about an inch. I guess that means it's time to think about locking out the cold air once and for all this year.

271

Rising Sea Levels Due to Global Warming Are Unstoppable  

NLE Websites -- All DOE Office Websites (Extended Search)

Rising Sea Levels Rising Sea Levels Due to Global Warming Are Unstoppable Rising Sea Levels Due to Global Warming Are Unstoppable Mitigation can slow down but not prevent sea level rise for centuries to come August 5, 2013 Contact: Linda Vu, Lvu@lbl.gov, +1 510 495 2402 washington.jpg Because seawater absorbs heat more slowly than the atmosphere above it, our oceans won't feel the full impact of the greenhouse gases already in the air for hundreds of years. Warm water expands, raising sea levels. (Courtesy W. Washington) Select to enlarge. A reduction in greenhouse gas emissions could greatly lessen the impacts of climate change. However, the gases already added to the atmosphere ensure a certain amount of sea level rise to come, even if future emissions are reduced. A study by National Center for Atmospheric Research (NCAR)

272

ARM - Publications: Science Team Meeting Documents: Tropical Warm Pool  

NLE Websites -- All DOE Office Websites (Extended Search)

Tropical Warm Pool International Cloud Experiment Tropical Warm Pool International Cloud Experiment May, Peter Bureau or Meteorology Research Centre Mather, James Pacific Northwest National Laboratory Jakob, Christian BMRC One of the most complete data sets describing tropical convection ever collected will result from the upcoming Tropical Warm Pool International Cloud Experiment (TWPICE) in the area around Darwin in late 2005 and early 2006. The aims of the experiment will be to examine convective cloud systems from their initial stages through to the decay of the cirrus generated and to measure their impact on the environment. The experiment design includes an unprecedented network of ground-based observations (soundings, active and passive remote sensors) combined with a large range of low, mid and high altitude aircraft for in-situ and remote sensing

273

Stay Warm in Your Apartment | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stay Warm in Your Apartment Stay Warm in Your Apartment Stay Warm in Your Apartment October 19, 2009 - 11:43am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy Yes, the Ghost of Winters Future has officially knocked on our front doors again. The leaves here in Washington, D.C., have started to turn toward their colorful crescendo, that spectacular finish before their end on the chilly ground. It makes me cold just thinking about it. Like me, you're probably not opening your windows much at night anymore. I'm holding out still, surrendering a little more of my beloved fresh air each night and dreading that first night when I have to pop the heater on. Last night, I only open my window about an inch. I guess that means it's time to think about locking out the cold air once and for all this year.

274

Atmospheric Radiation Measurement Tropical Warm Pool International Cloud Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

Tropical Warm Pool Tropical Warm Pool International Cloud Experiment General Description The Tropical Warm Pool - International Cloud Experiment (TWP-ICE) was a collaborative effort led by the U.S. Department of Energy's Atmospheric Radiation Measurement (ARM) Program and the Australian Bureau of Meteorology. Beginning January 21 and ending February 14, 2006, the experiment was conducted in the region near the ARM Climate Research Facility in Darwin, Northern Australia. This permanent facility is fully equipped with sophisticated instruments for measuring cloud and other atmospheric properties to provide a long-term record of continuous observational data. Measurements obtained from the other experiment components (explained below) will complement this dataset to provide a detailed description of the tropical atmosphere.

275

The 7. global warming international conference and expo: Abstracts  

SciTech Connect

This conference was held April 1--3, 1996 in Vienna, Austria. The purpose of this conference was to provide a multidisciplinary forum for exchange of state-of-the-art information on global warming. Topics of interest include the following: global and regional natural resource management; energy, transportation, minerals and natural resource management; industrial technology and greenhouse gas emission; strategies for the mitigation of greenhouse gas emission; greenhouse gas production/utilization and carbon budgets; strategies for promoting the understanding of global change; international policy strategy and economics; and global warming and public health. Individual papers have been processed separately for inclusion in the appropriate data bases.

NONE

1996-12-31T23:59:59.000Z

276

The Influence of Changes in Cloud Cover on Recent Surface Temperature Trends in the Arctic  

Science Conference Proceedings (OSTI)

A method is presented to assess the influence of changes in Arctic cloud cover on the surface temperature trend, allowing for a more robust diagnosis of causes for surface warming or cooling. Seasonal trends in satellite-derived Arctic surface ...

Yinghui Liu; Jeffrey R. Key; Xuanji Wang

2008-02-01T23:59:59.000Z

277

Anthropogenic Moisture Effects on WRF Summertime Surface Temperature and Mixing Ratio Forecast Skill In Southern California  

Science Conference Proceedings (OSTI)

Mesoscale forecasts for the Los Angeles basin made with the fifth-generation Pennsylvania State UniversityNational Center for Atmospheric Research Mesoscale Model (MM5) exhibited a moderate to substantial warm temperature bias for extended ...

Rich F. Coleman; James F. Drake; Michael D. McAtee; Leslie O. Belsma

2010-10-01T23:59:59.000Z

278

The Doubled CO2 Climate: Impact of the Sea Surface Temperature Gradient  

Science Conference Proceedings (OSTI)

Even though five different general circulation models are all currently producing about a 4 1C warming for doubled CO2, there is still substantial model disagreement about the degree of high latitude amplification of the surface temperature ...

David Rind

1987-11-01T23:59:59.000Z

279

Detection of Human Influence on a New, Validated 1500-Year Temperature Reconstruction  

Science Conference Proceedings (OSTI)

Climate records over the last millennium place the twentieth-century warming in a longer historical context. Reconstructions of millennial temperatures show a wide range of variability, raising questions about the reliability of currently ...

Gabriele C. Hegerl; Thomas J. Crowley; Myles Allen; William T. Hyde; Henry N. Pollack; Jason Smerdon; Eduardo Zorita

2007-02-01T23:59:59.000Z

280

Effect of Volcanic Eruptions on the Vertical Temperature Profile in Radiosonde Data and Climate Models  

Science Conference Proceedings (OSTI)

Both observed and modeled upper-air temperature profiles show the tropospheric cooling and tropical stratospheric warming effects from the three major volcanic eruptions since 1960. Detailed comparisons of vertical profiles of Radiosonde ...

Melissa Free; John Lanzante

2009-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

The Relationship between LandOcean Surface Temperature Contrast and Radiative Forcing  

Science Conference Proceedings (OSTI)

Previous work has demonstrated that observed and modeled climates show a near-time-invariant ratio of mean land to mean ocean surface temperature change under transient and equilibrium global warming. This study confirms this in a range of ...

F. Hugo Lambert; Mark J. Webb; Manoj M. Joshi

2011-07-01T23:59:59.000Z

282

Sensitivity of the Systematic Error of Extended Range Forecasts to Sea Surface Temperature Anomalies  

Science Conference Proceedings (OSTI)

The sensitivity of the systematic error of extended-range forecasts to sea surface temperature (SST) anomalies is investigated. General circulation model (GCM) experiments were performed to quantify error patterns for warm, normal, and cold SST ...

Kingtse C. Mo; X. L. Wang

1995-06-01T23:59:59.000Z

283

Experimental and theoretical investigations on the warm-up of a high-pressure mercury discharge lamp  

SciTech Connect

Modern high-pressure discharge lamps are forced to provide instant light and hot relight capabilities - if possible at lower power units. A detailed understanding of the warm-up of high-pressure discharge lamps is therefore required. Complex fluid model codes were developed for the past years including more and more processes like two-dimensional treatment of convection trying to provide a more comprehensive and consistent description of high-pressure discharge lamps. However, there is a lack of experimental data to examine the performance of these models. This work provides a very complete set of geometrical, electrical, spectroscopic, and thermographic data according to the warm-up of a high-pressure mercury discharge lamp that is compared to the results of a state of the art fluid code. Quantitative agreement is achieved for single parameters like wall temperatures. But the paper also reveals the need for further investigations and improvements of the code.

Zalach, J.; Franke, St.; Schoepp, H. [Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, D-17489 Greifswald (Germany); Araoud, Z.; Charrada, K. [Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, rte de Kairouan, 5019 Monastir (Tunisia); Zissis, G. [Laboratoire Plasma et Conversion d'Energie, 118 rte Narbonne, Bat3R2, 31062 Toulouse (France)

2011-03-15T23:59:59.000Z

284

Detecting the Nonstationary Response of ENSO to Greenhouse Warming  

Science Conference Proceedings (OSTI)

On the basis of the latest greenhouse warming experiment performed with the Max-Planck Institut coupled atmosphere/isopycnal ocean model (ECHAM4/OPYC) it is shown that not only the climate mean but also the statistics of higher-order statistical ...

A. Timmermann

1999-07-01T23:59:59.000Z

285

8th Global warming international conference and exposition  

Science Conference Proceedings (OSTI)

Abstracts are presented from The 8th Annual Global Warming international conference and expo. Topics centered around greenhouse gas emission and disposal methods, policy and economics, carbon budget, and resource management. Individual reports have been processed separately for the United States Department of Energy databases.

NONE

1997-12-31T23:59:59.000Z

286

Effects of a Warm Oceanic Feature on Hurricane Opal  

Science Conference Proceedings (OSTI)

On 4 October 1995, Hurricane Opal deepened from 965 to 916 hPa in the Gulf of Mexico over a 14-h period upon encountering a warm core ring (WCR) in the ocean shed by the Loop Current during an upper-level atmospheric trough interaction. Based on ...

Lynn K. Shay; Gustavo J. Goni; Peter G. Black

2000-05-01T23:59:59.000Z

287

Global Warming Effects on U.S. Hurricane Damage  

Science Conference Proceedings (OSTI)

While many studies of the effects of global warming on hurricanes predict an increase in various metrics of Atlantic basin-wide activity, it is less clear that this signal will emerge from background noise in measures of hurricane damage, which ...

Kerry Emanuel

2011-10-01T23:59:59.000Z

288

Regional Simulations of Greenhouse Warming Including Natural Variability  

Science Conference Proceedings (OSTI)

The perception of the hypothesized greenhouse effect will differ dramatically depending upon the location on the earth at which the effect is analyzed. This is due mainly to two causes: 1) the warming signal depends upon the position on the earth,...

Kwang-Y. Kim; Gerald R. North

1995-11-01T23:59:59.000Z

289

POLYLACTIDE (PLA) BIOPOLYMER 1. INTRODUCTION TO WARM AND PLA  

E-Print Network (OSTI)

This chapter describes the methodology used in EPAs Waste Reduction Model (WARM) to estimate streamlined life-cycle greenhouse gas (GHG) emission factors for Natureworks Ingeo polylactide (PLA) biopolymer resin, beginning at the waste generation reference point. Due to the large number of end applications for PLA (e.g., food containers, bottles and other consumer products) and the

unknown authors

2012-01-01T23:59:59.000Z

290

Get Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Get Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money Get Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money September 21, 2009 - 3:04pm Addthis Allison Casey...

291

A New Look at Stratospheric Sudden Warmings. Part I: Climatology and Modeling Benchmarks  

Science Conference Proceedings (OSTI)

Stratospheric sudden warmings are the clearest and strongest manifestation of dynamical coupling in the stratospheretroposphere system. While many sudden warmings have been individually documented in the literature, this study aims at ...

Andrew J. Charlton; Lorenzo M. Polvani

2007-02-01T23:59:59.000Z

292

Can CGCMs Simulate the Twentieth-Century Warming Hole in the Central United States?  

Science Conference Proceedings (OSTI)

The observed lack of twentieth-century warming in the central United States (CUS), denoted here as the warming hole, was examined in 55 simulations driven by external historical forcings and in 19 preindustrial control (unforced) simulations ...

Kenneth E. Kunkel; Xin-Zhong Liang; Jinhong Zhu; Yiruo Lin

2006-09-01T23:59:59.000Z

293

Phase Speed Spectra and the Latitude of Surface Westerlies: Interannual Variability and Global Warming Trend  

Science Conference Proceedings (OSTI)

The extratropical annular-mode-like atmospheric responses to ENSO and global warming and the internal variability of annular modes are associated with similar, yet distinct, dynamical characteristics. In particular, La Nia, global warming, and ...

Gang Chen; Jian Lu; Dargan M. W. Frierson

2008-11-01T23:59:59.000Z

294

A Simple Dynamical Model of the Warm-Water Branch of the Middepth Meridional Overturning Cell  

Science Conference Proceedings (OSTI)

A reduced-gravity model is presented of the warm-water branch of the middepth meridional overturning circulation in a rectangular basin with a circumpolar connection. The model describes the balance between production of warm water by Ekman ...

R. M. Samelson

2009-05-01T23:59:59.000Z

295

Diagnostic Study of a Wavenumber-2 Stratospheric Sudden Warming in a Transformed Eulerian-Mean Formalism  

Science Conference Proceedings (OSTI)

The intense wavenumber-2 stratospheric warming of February 1979 is analyzed in a transformed Eulerian-mean formalism, and compared with diagnostics generated by the model warming of Dunkerton et al. (1981). Significant differences in the ...

T. N. Palmer

1981-04-01T23:59:59.000Z

296

Sensitivities and Mechanisms of the Zonal Mean Atmospheric Circulation Response to Tropical Warming  

Science Conference Proceedings (OSTI)

Although El Nio and global warming are both characterized by warming in the tropical upper troposphere, the latitudinal changes of the Hadley cell edge and midlatitude eddy-driven jet are opposite in sign. Using an idealized dry atmospheric model,...

Lantao Sun; Gang Chen; Jian Lu

2013-08-01T23:59:59.000Z

297

A Perfect Prognosis Scheme for Forecasting Warm-Season Lightning over Florida  

Science Conference Proceedings (OSTI)

This study develops and evaluates a statistical scheme for forecasting warm-season lightning over Florida. Four warm seasons of analysis data from the Rapid Update Cycle (RUC) and lightning data from the National Lightning Detection Network are ...

Phillip E. Shafer; Henry E. Fuelberg

2008-06-01T23:59:59.000Z

298

How Dry is the Tropical Free Troposphere? Implications for Global Warming Theory  

Science Conference Proceedings (OSTI)

The humidity of the free troposphere is being increasingly scrutinized in climate research due to its central role in global warming theory through positive water vapor feedback. This feedback is the primary source of global warming in general ...

Roy W. Spencer; William D. Braswell

1997-06-01T23:59:59.000Z

299

Tropical Stabilization of the Thermohaline Circulation in a Greenhouse Warming Simulation  

Science Conference Proceedings (OSTI)

Most global climate models simulate a weakening of the North Atlantic thermohaline circulation (THC) in response to enhanced greenhouse warming. Both surface warming and freshening in high latitudes, the so-called sinking region, contribute to ...

M. Latif; E. Roeckner; U. Mikolajewicz; R. Voss

2000-06-01T23:59:59.000Z

300

Are There Any Satisfactory Geologic Analogs for a Future Greenhouse Warming?  

Science Conference Proceedings (OSTI)

There have been numerous attempts to propose past warm time periods as analogs for a future greenhouse warming. In this paper it is argued that, although paleoclimate studies may provide important insights into process operating in the climate ...

Thomas J. Crowley

1990-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The Supercooled Warm Rain Process and the Specification of Freezing Precipitation  

Science Conference Proceedings (OSTI)

About 30% of freezing precipitation cases are observed to occur in a subfreezing atmosphere (contrary to the classical melting ice model). We explain these cases with the concept of the supercolled warm rain process (SWRP): the warm rain ...

George J. Huffman; Gene Alfred Norman Jr.

1988-11-01T23:59:59.000Z

302

How Do You Stay Warm While Saving Money and Energy in Extreme...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Stay Warm While Saving Money and Energy in Extreme Weather? How Do You Stay Warm While Saving Money and Energy in Extreme Weather? February 3, 2011 - 6:30am Addthis Many states are...

303

The Unusual Midwinter Warming in the Southern Hemisphere Stratosphere 2002: A Comparison to Northern Hemisphere Phenomena  

Science Conference Proceedings (OSTI)

A strong midwinter warming occurred in the Southern Hemisphere (SH) stratosphere in September 2002. Based on experiences from the Northern Hemisphere (NH), this event can be defined as a major warming with a breakdown of the polar vortex in ...

Kirstin Krger; Barbara Naujokat; Karin Labitzke

2005-03-01T23:59:59.000Z

304

The effect of experimental warming and precipitation change on proteolytic enzyme activity: positive feedbacks  

E-Print Network (OSTI)

.8 1.4 739 Harvard Forest-Prospect Hill HF1 Petersham, MA Temperate Forest Warming 42.5 ?72.2 7.8 1172 Harvard Forest-Barre Woods HF2 Petersham, MA Temperate Forest Warming 42.5 ?72.2 7.8 1172 Harvard Forest-N 9 Warming HFN Petersham, MA Temperate Forest Warming 42.5 ?72.2 7.8 1172 Boston Area Climate

Minnesota, University of

305

Microsoft Word - Highlights.doc  

Gasoline and Diesel Fuel Update (EIA)

7 7 1 February 2007 Short-Term Energy Outlook February 6, 2007 Release (Next Update: March 6, 2007) Highlights * The unseasonably warm temperatures in the United States and throughout most of the northern hemisphere through early January reduced the demand for heating fuels, leading to an easing of petroleum and natural gas prices. Between mid-December 2006 and January 18, 2007, the spot price of West Texas Intermediate (WTI) crude oil fell by about $12 per barrel to a low of $50.51 per barrel. The Henry Hub natural gas spot price fell from $8.67 per thousand cubic feet (mcf) on December 1 to a low of $5.56 per mcf on January 2. The turn to

306

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Resource Use: March 2012 Resource Use: March 2012 Supply and Fuel Consumption In this section, we look at what resources are used to produce electricity. Electricity supplied from the grid is consumed the moment it is produced. Generating units are chosen to run primarily on their operating costs, of which fuel costs account for the lion's share. Therefore, we present below electricity generation output by generator type and fuel type. Since the generator/fuel mix of utilities varies significantly by region, we also present generation output by region. Generation Output by Region By generator type By fuel type Region map map showing electricity regions Generation output declined across much of the country in March due to unseasonably warm temperatures. The two regions that observed small

307

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Resource Use: December 2011 Resource Use: December 2011 Supply and Fuel Consumption In this section, we look at what resources are used to produce electricity. Electricity supplied from the grid is consumed the moment it is produced. Generating units are chosen to run primarily on their operating costs, of which fuel costs account for the lion's share. Therefore, we present below electricity generation output by generator type and fuel type. Since the generator/fuel mix of utilities varies significantly by region, we also present generation output by region. Generation Output by Region By generator type By fuel type Region map map showing electricity regions Generation output declined in all regions, with the exception of the West and Texas, due to unseasonably warm temperatures in December. Fossil steam

308

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Electric Power Sector Coal Stocks: February 2012 Electric Power Sector Coal Stocks: February 2012 Stocks The unseasonably warm temperatures that the continental United States experienced throughout the winter, coupled with low natural gas prices, caused coal stocks at power plants to increase throughout the winter of 2011 - 2012. During this period, coal stocks usually see a seasonal decline due to the added need for electricity generation from coal plants for spacing heating load. However, it was the sixth straight month that coal stocks increased from the previous month, with this trend likely to continue as the country enters into spring. Days of Burn Days of burn Coal capacity The average number of days of burn held at electric power plants is a forward looking estimate of coal supply given a power plant's current

309

Natural Gas - U.S. Energy Information Administration (EIA) - U.S. Energy  

Gasoline and Diesel Fuel Update (EIA)

15, 2012 | Release Date: Feb. 16, 15, 2012 | Release Date: Feb. 16, 2012 | Next Release: Feb. 23, 2012 Previous Issues Week: 12/22/2013 (View Archive) JUMP TO: In The News | Overview | Prices | Storage In the News: Winter Weather Leads to Spike in Natural Gas Consumption Although the winter has been unseasonably warm through most of the lower 48 States, cold temperatures on Sunday led to increases in consumption, imports, and LNG sendout according to estimates from BENTEK Energy, LLC (Bentek). Total U.S. consumption rose to more than 104 billion cubic feet (Bcf) on Sunday, the highest level of the winter so far. Imports from Canada and LNG sendout - each of which has been very low this year -increased during the weekend, filling in as a marginal source of supply. LNG sendout rose to 1.2 Bcf on Sunday and Monday, with sendout coming from

310

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Resource Use: January 2012 Resource Use: January 2012 Supply and Fuel Consumption In this section, we look at what resources are used to produce electricity. Electricity supplied from the grid is consumed the moment it is produced. Generating units are chosen to run primarily on their operating costs, of which fuel costs account for the lion's share. Therefore, we present below electricity generation output by generator type and fuel type. Since the generator/fuel mix of utilities varies significantly by region, we also present generation output by region. Generation Output by Region By generator type By fuel type Region map map showing electricity regions Generation output declined in all regions due to unseasonably warm temperatures in January. Fossil steam generation followed total generation

311

Electricity Monthly Update  

Gasoline and Diesel Fuel Update (EIA)

Resource Use: February 2012 Resource Use: February 2012 Supply and Fuel Consumption In this section, we look at what resources are used to produce electricity. Electricity supplied from the grid is consumed the moment it is produced. Generating units are chosen to run primarily on their operating costs, of which fuel costs account for the lion's share. Therefore, we present below electricity generation output by generator type and fuel type. Since the generator/fuel mix of utilities varies significantly by region, we also present generation output by region. Generation Output by Region By generator type By fuel type Region map map showing electricity regions Generation output declined in almost all regions in February due to unseasonably warm temperatures. Following the same pattern as January,

312

Warm Pool SST Variability in Relation to the Surface Energy Balance  

Science Conference Proceedings (OSTI)

The warm tropical oceans underlie the most convective regions on earth and are a critical component of the earths climate, yet there are differing opinions on the processes that control warm pool SST. The IndoPacific warm pool is characterized ...

John Fasullo; Peter J. Webster

1999-05-01T23:59:59.000Z

313

Surface Heat Budgets and Sea Surface Temperature in the Pacific Warm Pool during TOGA COARE  

Science Conference Proceedings (OSTI)

The daily mean heat and momentum fluxes at the surface derived from the Special Sensor Microwave/Imager and Japans Geostationary Meteorological Satellite radiance measurements are used to study the temporal and spatial variability of the surface ...

Shu-Hsien Chou; Wenzhong Zhao; Ming-Dah Chou

2000-02-01T23:59:59.000Z

314

Global Warming Solutions Inc previously Southern Investments Inc | Open  

Open Energy Info (EERE)

Warming Solutions Inc previously Southern Investments Inc Warming Solutions Inc previously Southern Investments Inc Jump to: navigation, search Name Global Warming Solutions Inc (previously Southern Investments Inc) Place Houston, Texas Zip 77002 Sector Solar Product Developer of a combined PV and thermal energy solar system called light electric and thermal generator (LETG). Coordinates 29.76045°, -95.369784° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":29.76045,"lon":-95.369784,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

315

North Florida Global Warming Study Group | Open Energy Information  

Open Energy Info (EERE)

Florida Global Warming Study Group Florida Global Warming Study Group Jump to: navigation, search Name North Florida Global Warming Study Group Address 8342 Compass Rose Dr S Place Jacksonville, Florida Zip 32216 Year founded 2003 Phone number 9047379211 Website [atilley@unf.edu atilley@unf.edu ] Notes This is an email newslist. Coordinates 30.259044°, -81.571333° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.259044,"lon":-81.571333,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

316

Availability of 3-out-of Warm Standby System  

E-Print Network (OSTI)

Introduction Standby techC6A4P are used to improve system availability. Usually, a k-out-of-n:G standby system is assumedthu whm an operating component fails, a standby component becomes active and th system is working if at least k components are fault-free. In general,ther arethC6 types in component standby, i.e., cold,hd and warm standby. Cold standby impliesthe inactive components h ve a zero failure rate. Hot standby impliesthl an inactive componenthx th same failure rate aswh6 it is in operation. Warm standby impliesthi an inactive componenthx a failure rate between cold and hdC it is also called dormant failure in some papers. k-out-of-n:G warm standby systemsh ve been used in several research fields including medical diagnosis, redundant-system testing, power plant system and so on. Th.C h ve been many articles concerning study on availability of k-out-of-n:G syst

Tielingzhan Nonmember And; Specialsection On; Michio Horigome; M Er

2000-01-01T23:59:59.000Z

317

Winners and losers in a world with global warming: Noncooperation, altruism, and social welfare  

SciTech Connect

In this paper, global warming is an asymmetric transboundary externality which benefits some countries or regions and harms others. Few environmental problems have captured the public`s imagination as much and attracted as much scrutiny as global warming. The general perception is that global warming is a net social bad, and that across-the-board abatement of greenhouse gas emissions is therefore desirable. Despite many interesting academic contributions, not all of the basic economics of this phenomenon have been fully worked out. The authors use a simple two-country model to analyze the effects of global warming on resource allocations, the global-warming stock, and national and global welfare.

Caplan, A.J. [Weber State Univ., Ogden, UT (United States). Dept. of Economics; Ellis, C.J.; Silva, E.C.D. [Univ. of Oregon, Eugene, OR (United States). Dept. of Economics

1999-05-01T23:59:59.000Z

318

Radiance Temperature  

Science Conference Proceedings (OSTI)

... Temperature using Detectors Calibrated for Absolute Spectral Power Response, HW ... A Third Generation Water Bath Based Blackbody Source, JB ...

2013-06-27T23:59:59.000Z

319

Investigating the Influence of Carbon Dioxide and the Stratosphere on the Long-Term Tropospheric Temperature Monitoring from HIRS  

Science Conference Proceedings (OSTI)

Contrary to a midtropospheric warming trend detected from Microwave Sounding Unit (MSU) measurements, High-Resolution Infrared Radiation Sounder (HIRS) temperature (15 ?m) channels, sensitive to the thermal emission from the troposphere, produce ...

Eui-Seok Chung; Brian J. Soden

2010-09-01T23:59:59.000Z

320

An Analysis of the Ground Temperature and Reflectivity Pattern about St. Louis, Missouri, Using HCMM Satellite Data  

Science Conference Proceedings (OSTI)

Ground temperatures and reflectivity patterns have been examined for the area in and surrounding St. Louis, Missouri, using HCMM satellite data. Analyses demonstrate marked seasonal and day/night differences. In the warm season and during the day,...

Fred M. Vukovich

1983-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Response of the Atmosphere to Sea Surface Temperature Anomalies over the Equatorial Pacific and the Teleconnections of the Southern Oscillation  

Science Conference Proceedings (OSTI)

In order to improve our understanding of the role of equatorial Pacific sea surface temperature (SST) anomalies in the Southern Oscillation and the variability of the Walker Circulation, we have conducted sensitivity studies with warm SSTA's over ...

R. N. Keshavamurty

1982-06-01T23:59:59.000Z

322

A database for equations of state and resistivities measurements in the warm dense matter regime  

SciTech Connect

The aim of this paper is to provide experimental data on various expanded elements in the warm dense matter regime. The experiments were done on the experimental facility 'enceinte a plasma isochore' and are evaluated through a thorough comparison with ab initio calculations, average-atom codes, and chemical models. This comparison allows for the evaluation of the experimental temperatures that are not accessible to the measurements and permits the building of useful data tables gathering energy, pressure, conductivity, and temperatures. We summarize experiments performed on aluminum (0.1 and 0.3 g/cm{sup 3}), nickel (0.2 g/cm{sup 3}), titanium (0.1 g/cm{sup 3}), copper (0.3 and 0.5 g/cm{sup 3}), silver (0.43 g/cm{sup 3}), gold (0.5 g/cm{sup 3}), boron (0.094 g/cm{sup 3}), and silicon (0.21 g/cm{sup 3}) for temperatures ranging from 0.5 eV to 3-4 eV.

Clerouin, J.; Noiret, P.; Blottiau, P.; Recoules, V.; Siberchicot, B.; Renaudin, P.; Blancard, C.; Faussurier, G. [CEA, DAM, DIF, F-91297 Arpajon (France); Holst, B. [CEA, DAM, DIF, F-91297 Arpajon (France); LULI, Ecole Polytechnique, CNRS, CEA, UPMC, route de Saclay, 91128 Palaiseau (France); Starrett, C. E. [Los Alamos National laboratory, New Mexico 87545 (United States)

2012-08-15T23:59:59.000Z

323

Phase relation between global temperature and atmospheric carbon dioxide  

E-Print Network (OSTI)

The primary ingredient of Anthropogenic Global Warming hypothesis is the assumption that atmospheric carbon dioxide variations are the cause for temperature variations. In this paper we discuss this assumption and analyze it on basis of bi-centenary measurements and using a relaxation model which causes phase shifts and delays.

Stallinga, Peter

2013-01-01T23:59:59.000Z

324

Characteristics of Daily and Extreme Temperatures over Canada  

Science Conference Proceedings (OSTI)

Recent studies have shown that, since 1900, mean annual temperature over southern Canada has increased by an average of 0.9C, with the largest warming during winter and early spring. Every season was associated with greater increases in minimum ...

B. R. Bonsal; X. Zhang; L. A. Vincent; W. D. Hogg

2001-05-01T23:59:59.000Z

325

Dynamical instabilities of warm n pe matter: the delta meson effects  

Science Conference Proceedings (OSTI)

The effects of the delta meson on the dynamical instabilities of cold and warm nuclear and stellar matter at subsaturation densities are studied in the framework of relativistic mean-field hadron models (NL3, NL{sub r}ho and NL{sub r}ho{sub d}elta) with the inclusion of the electromagnetic field. The crust-core transition density and pressure are obtained as a function of temperature of beta-equilibrium matter with and without neutrino trapping. The distillation effect is discussed. For beta-equilibrium matter with trapped neutrinos the pasta phase disappears for T>13.2 MeV (NL{sub r}ho and NL{sub r}ho{sub d}elta) or T>11.6 MeV (NL3). For neutrino free matter the non-homogeneous phase does not exist for T>3 MeV. The delta meson has a larger effect in neutron rich matter, larger densities and smaller temperatures. It reduces the extension of the spinodal. The distillation effect is stronger for larger densities and smaller temperatures. The delta meson increases the distillation effect, for larger densities. NL3 predicts larger clusters compared with the other two parametrizations, and a smaller extension of the non-homogeneous phase for all temperatures. At the transition densities, the NL{sub r}ho and NL{sub r}ho{sub d}elta predict clusters with the double of the size as compared with an intermediate density. Constraints at finite temperature on the EOS are required.

Pais, Helena; Santos, Alexandre; Providencia, Constanca [Centro de Fisica Computacional-Department of Physics, University of Coimbra-P-3004-516-Coimbra-Portugal (Portugal)

2010-04-26T23:59:59.000Z

326

Energy and global warming impacts of CFC alternative technologies  

Science Conference Proceedings (OSTI)

Chlorofluorocarbons (CFCs) are used in a number of applications and volumes of CFCs used grew at a tremendous pace during the 1960s and 1970s. However, in the mid-1980s, it was confirmed that these extremely useful chemicals contribute to the destruction of stratospheric ozone. These chemicals are being phased out of use rapidly to protect the ozone layer and it is very important that the replacements for CFCs do not result in a net increase in global warming by introducing less efficient processes that lead to higher energy use and increased carbon dioxide emissions. A study was conducted to identify those alternative chemicals and technologies that could replace CFCs in energy related applications before the year 2000, and to assess the total potential impact of these alternatives on global warming. The analysis for this project included an estimate of the direct effects from the release of blowing agents, refrigerants, and solvents into the atmosphere and the indirect effects in the form of carbon dioxide emissions resulting from energy use for commercial and residential heating and cooling, household and commercial refrigeration, building and automobile air-conditioning, and general metal and electronics solvent cleaning. The discussion in this paper focuses on those aspects of the study relevant to refrigeration and air-conditioning. In general the use of hydrofluorocarbon (HFC) and hydrochlorofluorocarbon (HCFC) alternatives for CFCs lead to large and sometimes dramatic reductions in total equivalent warming impact (TEWI), lifetime equivalent CO{sub 2} emissions. Most of the reductions result from decreased direct effects without significant changes in energy use.

Fischer, S.K.; Fairchild, P.D.; Hughes, P.J.

1992-07-01T23:59:59.000Z

327

Energy and global warming impacts of CFC alternative technologies  

Science Conference Proceedings (OSTI)

Chlorofluorocarbons (CFCs) are used in a number of applications and volumes of CFCs used grew at a tremendous pace during the 1960s and 1970s. However, in the mid-1980s, it was confirmed that these extremely useful chemicals contribute to the destruction of stratospheric ozone. These chemicals are being phased out of use rapidly to protect the ozone layer and it is very important that the replacements for CFCs do not result in a net increase in global warming by introducing less efficient processes that lead to higher energy use and increased carbon dioxide emissions. A study was conducted to identify those alternative chemicals and technologies that could replace CFCs in energy related applications before the year 2000, and to assess the total potential impact of these alternatives on global warming. The analysis for this project included an estimate of the direct effects from the release of blowing agents, refrigerants, and solvents into the atmosphere and the indirect effects in the form of carbon dioxide emissions resulting from energy use for commercial and residential heating and cooling, household and commercial refrigeration, building and automobile air-conditioning, and general metal and electronics solvent cleaning. The discussion in this paper focuses on those aspects of the study relevant to refrigeration and air-conditioning. In general the use of hydrofluorocarbon (HFC) and hydrochlorofluorocarbon (HCFC) alternatives for CFCs lead to large and sometimes dramatic reductions in total equivalent warming impact (TEWI), lifetime equivalent CO{sub 2} emissions. Most of the reductions result from decreased direct effects without significant changes in energy use.

Fischer, S.K.; Fairchild, P.D.; Hughes, P.J.

1992-01-01T23:59:59.000Z

328

FINAL REPORT WIND POWER WARM SPRINGS RESERVATION TRIBAL LANDS DOE GRANT NUMBER DE-FG36-07GO17077 SUBMITTED BY WARM SPRINGS POWER & WATER ENTERPRISES A CORPORATE ENTITY OF THE CONFEDERATED TRIBES OF WARM SPRINGS WARM SPRINGS, OREGON  

SciTech Connect

Wind Generation Feasibility Warm Springs Power and Water Enterprises (WSPWE) is a corporate entity owned by the Confederated Tribes of the Warm Springs Reservation, located in central Oregon. The organization is responsible for managing electrical power generation facilities on tribal lands and, as part of its charter, has the responsibility to evaluate and develop renewable energy resources for the Confederated Tribes of Warm Springs. WSPWE recently completed a multi-year-year wind resource assessment of tribal lands, beginning with the installation of wind monitoring towers on the Mutton Mountains site in 2003, and collection of on-site wind data is ongoing. The study identified the Mutton Mountain site on the northeastern edge of the reservation as a site with sufficient wind resources to support a commercial power project estimated to generate over 226,000 MWh per year. Initial estimates indicate that the first phase of the project would be approximately 79.5 MW of installed capacity. This Phase 2 study expands and builds on the previously conducted Phase 1 Wind Resource Assessment, dated June 30, 2007. In order to fully assess the economic benefits that may accrue to the Tribes through wind energy development at Mutton Mountain, a planning-level opinion of probable cost was performed to define the costs associated with key design and construction aspects of the proposed project. This report defines the Mutton Mountain project costs and economics in sufficient detail to allow the Tribes to either build the project themselves or contract with a developer under the most favorable terms possible for the Tribes.

Jim Manion; Michael Lofting; Wil Sando; Emily Leslie; Randy Goff

2009-03-30T23:59:59.000Z

329

Scientists studying the greenhouse effect challenge fears of global warming  

SciTech Connect

The author discusses the controversy in the scientific community about the significance of the increased gases causing the greenhouse effect to be detrimental to the earth's ecosystems. He states that the most important aspect of the controversy is the fact that governments are embarking on foolish activities in order to prevent global warming. The fact that scientists offer research with contradicting results furthers the confusion as to what the best course of action is. The government agencies that control policy need to appropriate funds to study specific climatic changes and what effect carbon dioxide and other gases have on the atmosphere.

Wheeler, D.L.

1990-07-01T23:59:59.000Z

330

600 a Current Leads with Dry and Compact Warm Terminals  

E-Print Network (OSTI)

For the LHC magnet test benches 26 pairs of conventional helium vapour-cooled 600 A current leads are required. The first pair of 600 A current leads has been designed and built by industry and tested at CERN. The main component of the lead is the heat exchanger, which consists of two concentric copper pipes. Special attention was also given to the design of the warm terminal in order to avoid any condensation and to resist at an electrical test of 2 kV. The paper describes construction details and compares calculated and measured values of the main parameters.

Andersen, T P; Vullierme, B

2002-01-01T23:59:59.000Z

331

The rising tide: Global warming and world sea levels  

SciTech Connect

The author presents a broad-based and well-written approach to the impacts of sea level rise. Besides chapters on global warming, sources of sea level variability and the future, the effects on coastal nations, the book contains an important action-oriented discussion of proposed legislation and guidelines for planning and management aimed at reducing loss and damage produced by sea-level rise. The list of acknowledgements includes all the leading practitioners in the field. The references and information are current; reports and information from 1989 and 1990 meetings are included.

Edgerton, L.T.

1991-01-01T23:59:59.000Z

332

Sheet metal stamping die design for warm forming  

DOE Patents (OSTI)

In metal stamping dies, by taking advantage of improved material flow by selectively warming the die, flat sections of the die can contribute to the flow of material throughout the workpiece. Local surface heating can be accomplished by placing a heating block in the die. Distribution of heating at the flat lower train central regions outside of the bend region allows a softer flow at a lower stress to enable material flow into the thinner, higher strain areas at the bend/s. The heating block is inserted into the die and is powered by a power supply.

Ghosh, Amit K. (Ann Arbor, MI)

2003-04-22T23:59:59.000Z

333

Barrier Layers of the Atlantic Warm Pool: Formation Mechanism and Influence on Weather and Climate  

E-Print Network (OSTI)

The aim of this research is to study the formation mechanism of Barrier Layers (BL) in the western tropical Atlantic and their influence on the tropical Atlantic climate at both short and long timescales. Many Coupled General Circulation Models (CGCMs) tend to overestimate the salinity in the Atlantic warm pool or the Northwestern Tropical Atlantic (NWTA) and underestimate the surface salinity in the subtropical salinity maxima region. Most of these models also suffer from a seasurface temperature (SST) bias in the NWTA region, leading to suggestions that the upper ocean salinity stratification may need to be improved in order to improve the BL simulations and thus the SST through BL-SST-Intertropical Convergence Zone (ITCZ) feedbacks. We used a CGCM to perform a set of idealized numerical experiments to understand the sensitivity of the BL and consequently SST in the NWTA region to freshwater flux and hence the upper ocean salinity strati cation. We find that the BL of the western tropical Atlantic is quite sensitive to upper ocean salinity changes in the Amazon River discharge region and the subtropical salinity maxima region. The BL phenomenon is further manifested by the formation of winter temperature inversions in our model simulations. However, in the region of improved BL simulation, the SST response is not statistically significant. SST response to Tropical Cyclones (TCs) is studied for the Atlantic region using a high-resolution coupled regional climate model (CRCM) and observational data sets. The presence of a BL, defined as the layer below the mixed layer that separates the base of the isothermal layer from the base of the isohaline layer, is found to modulate the SST response. The amplitude of TC-induced surface cooling is reduced by more than 35 percent in the presence of a BL, as a consequence of the weak thermal stratification. Furthermore, in locations when the BL exhibits a temperature inversion, TC-induced mixing can result in weak surface warming. BLs considerably reduce the rightward bias for tropical storms, but the effect is less conspicuous for TCs. The enthalpy flux into the atmosphere at the air-sea interface is enhanced by 16 percent and the increase in upper ocean potential energy due to TC-induced mixing is reduced by 25 percent in the presence of BLs. The results from the coupled model are supported by an observational analysis performed using re-analysis data sets, as well as data from Argo floats and TRMM satellite. As previous modeling and observational studies have indicated that the surface cooling caused by TC-induced mixing acts as a negative feedback for its intensity, results from our study suggest that BLs may have potential implications for TC intensity prediction.

Balaguru, Karthik

2011-05-01T23:59:59.000Z

334

Ashton Warm Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Ashton Warm Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Ashton Warm Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.095,"lon":-111.4583,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

335

The role of nuclear energy in mitigating greenhouse warming  

SciTech Connect

A behavioral, top-down, forced-equilibrium market model of long-term ({approximately} 2,100) global energy-economics interactions has been modified with a bottom-up nuclear energy model and used to construct consistent scenarios describing future impacts of civil nuclear materials flows in an expanding, multi-regional (13) world economy. The relative measures and tradeoffs between economic (GNP, tax impacts, productivity, etc.), environmental (greenhouse gas accumulations, waste accumulation, proliferation risk), and energy (resources, energy mixes, supply-side versus demand-side attributes) interactions that emerge from these analyses are focused herein on advancing understanding of the role that nuclear energy (and other non-carbon energy sources) might play in mitigating greenhouse warming. Two ostensibly opposing scenario drivers are investigated: (a) demand-side improvements in (non-price-induced) autonomous energy efficiency improvements; and (b) supply-side carbon-tax inducements to shift energy mixes towards reduced- or non-carbon forms. In terms of stemming greenhouse warming for minimal cost of greenhouse-gas abatement, and with the limitations of the simplified taxing schedule used, a symbiotic combination of these two approaches may offer advantages not found if each is applied separately.

Krakowski, R.A.

1997-12-31T23:59:59.000Z

336

Warm molecular hydrogen in the Spitzer SINGS galaxy sample  

E-Print Network (OSTI)

(simplified) Results on the properties of warm H2 in 57 normal galaxies are derived from H2 rotational transitions, obtained as part of SINGS. This study extends previous extragalactic surveys of H2, the most abundant constituent of the molecular ISM, to more common systems (L_FIR = e7 to 6e10 L_sun) of all morphological and nuclear types. The S(1) transition is securely detected in the nuclear regions of 86% of SINGS galaxies with stellar masses above 10^9.5 M_sun. The derived column densities of warm H2 (T > ~100 K), even though averaged over kiloparsec-scale areas, are commensurate with those of resolved PDRs; the median of the sample is 3e20 cm-2. They amount to between 1% and >30% of the total H2. The power emitted in the sum of the S(0) to S(2) transitions is on average 30% of the [SiII] line power, and ~4e-4 of the total infrared power (TIR) within the same area for star-forming galaxies, which is consistent with excitation in PDRs. The fact that H2 emission scales tightly with PAH emission, even thoug...

Roussel, H; Hollenbach, D J; Draine, B T; Smith, J D; Armus, L; Schinnerer, E; Walter, F; Engelbracht, C W; Thornley, M D; Kennicutt, R C; Calzetti, D; Dale, D A; Murphy, E J; Bot, C

2007-01-01T23:59:59.000Z

337

H{alpha} AND FREE-FREE EMISSION FROM THE WARM IONIZED MEDIUM  

SciTech Connect

Recent observations have found the ratio of H{alpha} to free-free radio continuum to be surprisingly high in the diffuse ionized interstellar medium (the so-called warm ionized medium), corresponding to an electron temperature of only {approx}3000 K. Such low temperatures were unexpected in gas that was presumed to be photoionized. We consider a three-component model for the observed diffuse emission, consisting of a mix of (1) photoionized gas, (2) gas that is recombining and cooling, and (3) cool H I gas. This model can successfully reproduce the observed intensities of free-free continuum, H{alpha}, and collisionally excited lines such as [N II]6583. To reproduce the low observed value of free-free to H{alpha}, the polycyclic aromatic hydrocarbon abundance in the photoionized regions must be lowered by a factor {approx}3, and {approx}20% of the diffuse H{alpha} must be reflected from dust grains, as suggested by Wood and Reynolds.

Dong Ruobing; Draine, B. T. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States)

2011-01-20T23:59:59.000Z

338

A warm-start approach for large-scale stochastic linear programs?  

E-Print Network (OSTI)

Aug 29, 2006 ... The reduced tree selection induces a function r : T ?TR that maps each ...... We applied our warm-start strategy to the capacity assignment...

339

Changes in Cloud Cover, Precipitation, and Summer Temperature in North America from 1982 to 2009  

Science Conference Proceedings (OSTI)

In North America (NA), trends in summer surface air temperatures vary on decadal time scales, and some regions have temperature trends that exhibit a lack of warming in 19822009. From a surface energy balance perspective, the summer mean daily ...

Qiuhong Tang; Guoyong Leng

2013-03-01T23:59:59.000Z

340

Southeastern United States Daily Temperature Ranges Associated with the El NioSouthern Oscillation  

Science Conference Proceedings (OSTI)

The daily temperature range (DTR), daily maximum minus minimum temperature, at 290 Southeast United States stations is examined with respect to the warm and cold phases of the El NioSouthern Oscillation (ENSO) for the period of 19482009. A ...

Daniel M. Gilford; Shawn R. Smith; Melissa L. Griffin; Anthony Arguez

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Microsoft Word - Warm Rinse Guidance 6 29 2010_FINAL _2_  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The following is a draft U.S. Department of Energy interpretive rule, which sets out the The following is a draft U.S. Department of Energy interpretive rule, which sets out the Department's views on the application of the clothes washer testing procedure described in 10 CFR § 430 Appendix J1. This draft interpretive rule represents the Department's interpretation of its existing regulations and is exempt from the notice and comment requirements of the Administrative Procedure Act. See 5 U.S.C. § 553(b)(A). Nevertheless, we are interested in receiving feedback from the public on the interpretation set forth below. Therefore, the Department is accepting comments from the public until July 30, 2010. Comments should be provided in WordPerfect, Microsoft Word, PDF, or text file format by sending an email to: WarmRinse.FAQ@hq.doe.gov. At the end of the

342

Storage and retrieval of thermal light in warm atomic vapor  

SciTech Connect

We report slowed propagation and storage and retrieval of thermal light in warm rubidium vapor using the effect of electromagnetically induced transparency (EIT). We first demonstrate slowed propagation of the probe thermal light beam through an EIT medium by measuring the second-order correlation function of the light field using the Hanbury-Brown-Twiss interferometer. We also report an experimental study on the effect of the EIT slow-light medium on the temporal coherence of thermal light. Finally, we demonstrate the storage and retrieval of the thermal light beam in the EIT medium. The direct measurement of the photon number statistics of the retrieved light field shows that the photon number statistics are preserved during the storage and retrieval processes.

Cho, Young-Wook; Kim, Yoon-Ho [Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 790-784 (Korea, Republic of)

2010-09-15T23:59:59.000Z

343

New electric technologies to reduce global warming impacts  

SciTech Connect

Advanced electric technologies hold significant potential to reduce global warming impact through reduction of primary fuel needed to power end-use applications. These reductions can occur in two forms: (1) reduced kilowatt-hour usage and power plant emissions through efficiency improvements and technological enhancements of existing electrically-driven applications; (2) the development of new electric technologies to replace traditional fossil-fuel driven applications which can result in less overall primary energy consumption and lower overall emissions. Numerous new electric technologies are presently being developed by the Electric Power Research Institute. The technologies reviewed in this paper include: Microwave Fabric Dryer, Advanced Heat Pumps, Heat Pump Water Heater, Infrared Sand Reclaimer, Freeze Concentration, Membrane Water Recovery, Microwave Petrochemical Production, Infrared Drying, and Electric Vehicles. Full commercialization of these technologies can result in significant energy savings and CO[sub 2] reductions, in addition to improving the competitiveness of businesses using these technologies.

Courtright, H.A. (Electric Power Research Inst., Palo Alto, CA (United States))

1994-09-01T23:59:59.000Z

344

Anomalous Temperature Regimes during the Cool Season: Long-term Trends, Low Frequency Mode Modulation and Representation in CMIP5 Simulations  

Science Conference Proceedings (OSTI)

During boreal winter, anomalous temperature regimes (ATRs), including cold air outbreaks (CAOs) and warm waves (WWs), provide important societal influences upon the US. The current study analyzes reanalysis and model data for the period 1949 to ...

Rebecca M. Westby; Yun-Young Lee; Robert X. Black

345

The greenhouse effect: Chicken Little and our response to global warming  

SciTech Connect

In this article the author suggests that global warming studies are ambiguous and have generated a chicken little response in the public and in policymakers. Uncertainties in studies of ocean warming and ozone depletion are discussed as well as the role of other trace gases such as methane, chlorofluorocarbons and nitrogen oxides.

Michaels, P.J.

1989-07-01T23:59:59.000Z

346

A Comparative Analysis of Global Warming Policies for California's Electricity Sector  

E-Print Network (OSTI)

i A Comparative Analysis of Global Warming Policies for California's Electricity Sector Sara Kamins #12;ii A COMPARATIVE ANALYSIS OF GLOBAL WARMING POLICIES FOR CALIFORNIA'S ELECTRICITY SECTOR By: Sara...................................................................................................................11 1.4. Literature Review on Comparisons of Carbon-Reducing Electricity Policies

Kammen, Daniel M.

347

Cheap coal said top enemy in fighting global warming By Alister Doyle, Environment Correspondent  

E-Print Network (OSTI)

Cheap coal said top enemy in fighting global warming By Alister Doyle, Environment Correspondent OSLO, Sept 28 (Reuters) - Cheap coal will be the main enemy in a fight against global warming in the 21st century because high oil prices are likely to encourage a shift to coal before wind or solar power

Calov, Reinhard

348

A mechanism for landocean contrasts in global monsoon trends in a warming climate  

E-Print Network (OSTI)

A mechanism for land­ocean contrasts in global monsoon trends in a warming climate J. Fasullo of the global monsoon record involves reported decreases in rainfall over land during an era in which the global in the monsoons in a warming climate while bolstering the concept of the global monsoon in the context of shared

Fasullo, John

349

Time-Dependent Internal Energy Budgets of the Tropical Warm Water Pools  

Science Conference Proceedings (OSTI)

The exchange of internal energy between the warm water pools of the tropical oceans and the overlying atmosphere is thought to play a central role in the evolving climate system of the earth. Spatial displacements of the warm water pools are ...

John M. Toole; Huai-Min Zhang; Michael J. Caruso

2004-03-01T23:59:59.000Z

350

Variability of warm deep water inflow in a submarine trough on the Amundsen Sea Shelf  

Science Conference Proceedings (OSTI)

The ice shelves in the Amundsen Sea are thinning rapidly, and the main reason for their decline appears to be warm ocean currents circulating below the ice shelves and melting these from below. Ocean currents transport warm dense water onto the ...

A. K. Whlin; O. Kaln; L. Arneborg; G. Bjrk; G. K. Carvajal; H. K. Ha; T. W. Kim; S. H. Lee; J. H. Lee; C. Stranne

351

TRENDS: TEMPERATURE  

NLE Websites -- All DOE Office Websites (Extended Search)

Historical Isotopic Temperature Record from the Vostok Ice Core Historical Isotopic Temperature Record from the Vostok Ice Core Graphics Digital Data J.R. Petit, D. Raynaud, and C. Lorius Laboratoire de Glaciogie et Géophysique de l'Environnement, CNRS, Saint Martin d'Hères Cedex, France J. Jouzel and G. Delaygue Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA/CNRS, L'Orme des Merisiers, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France N.I. Barkov Arctic and Antarctic Research Institute, Beringa Street 38, 199397 St. Petersburg, Russia V.M. Kotlyakov Institute of Geography, Staromonetny, per 29, Moscow 109017, Russia DOI: 10.3334/CDIAC/cli.006 Period of Record 420,000 years BP-present Methods Because isotopic fractions of the heavier oxygen-18 (18O) and deuterium (D) in snowfall are temperature-dependent and a strong spatial correlation

352

How Do You Stay Warm While Saving Money and Energy in Extreme Weather? |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

How Do You Stay Warm While Saving Money and Energy in Extreme How Do You Stay Warm While Saving Money and Energy in Extreme Weather? How Do You Stay Warm While Saving Money and Energy in Extreme Weather? February 3, 2011 - 6:30am Addthis Many states are getting extreme weather this week, with deep freezes, huge blizzards, and ice storms causing various problems across the country. Such weather can cause us to use energy a bit differently to stay warm and keep things running. Depending on where you are, you may be keeping the faucet dripping (so pipes don't freeze), your furnace might be working overtime in the cold, or you may be spending extra time warming up your car. In extreme conditions, it's important to be safe and take your own home and needs into account when taking these extra measures, while still considering your energy use and costs. For example, are your pipes in a

353

How Do You Stay Warm While Saving Money and Energy in Extreme Weather? |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Warm While Saving Money and Energy in Extreme Warm While Saving Money and Energy in Extreme Weather? How Do You Stay Warm While Saving Money and Energy in Extreme Weather? February 3, 2011 - 6:30am Addthis Many states are getting extreme weather this week, with deep freezes, huge blizzards, and ice storms causing various problems across the country. Such weather can cause us to use energy a bit differently to stay warm and keep things running. Depending on where you are, you may be keeping the faucet dripping (so pipes don't freeze), your furnace might be working overtime in the cold, or you may be spending extra time warming up your car. In extreme conditions, it's important to be safe and take your own home and needs into account when taking these extra measures, while still considering your energy use and costs. For example, are your pipes in a

354

Warm water vapor envelope in Mira variables and its effects on the apparent size from the near-infrared to the mid-infrared  

E-Print Network (OSTI)

We present a possible interpretation for the increase of the angular diameter of the Mira variables o Cet, R Leo, and chi Cyg from the K band to the 11 micron region revealed by the recent interferometric observations using narrow bandpasses where no salient spectral feature is present (Weiner et al. 2003a, 2003b). A simple two-layer model consisting of hot and cool H2O layers for the warm water vapor envelope can reproduce the angular diameters observed with Infrared Spatial Interferometer as well as the high-resolution TEXES spectra obtained in the 11 micron region. The strong absorption of H2O expected from the dense water vapor envelope is filled in by emission from the extended part of the envelope, and this results in the high-resolution 11 micron spectra which exhibit only weak, fine spectral features, masking the spectroscopic evidences of the dense, warm water vapor envelope. On the other hand, the presence of the warm water vapor envelope manifests itself as the larger angular diameters in the 11 micron region as compared to those measured in the near-infrared. Furthermore, comparison of the visibilities predicted in the near-infrared with observational results available in the literature demonstrates that our two-layer model for the warm water vapor envelope can also reproduce the observed near-infrared visibilities and angular diameters. The radii of the hot H2O layers in the three Mira variables are derived to be 1.5--1.7 Rstar with temperatures of 1800--2000 K and H2O column densities of (1--5) x 10^{21} cm^{-2}, while the radii of the cool H2O layers are derived to be 2.2--2.5 Rstar with temperatures of 1200--1400 K and H2O column densities of (1--7) x 10^{21} cm^{-2}.

Keiichi Ohnaka

2004-06-30T23:59:59.000Z

355

Multiwavelength WHAM Observations of Extra-planar Warm Ionized Gas in the Galaxy  

E-Print Network (OSTI)

We report on observations of several optical emission lines toward a variety of newly revealed faint, large-scale H-alpha-emitting structures in the warm ionized medium (WIM) of the Galaxy. The lines include [N II] 6583, [N II] 5755, [S II] 6716, [O III] 5007, and He I 5876 and were obtained with the Wisconsin H-Alpha Mapper (WHAM) toward sightlines that probe both large filamentary features and the more diffuse WIM, from the outer Perseus spiral arm to the inner Galaxy. These emission lines allow us to explore the temperature and ionization conditions within the emitting gas and their variations between the different emission regions. We compare the relative intensities of the emission lines toward these faint H II structures to brighter, classical O star H II regions. We find that the line ratios of [N II]/H-alpha and [S II]/H-alpha are generally high, while [O III]/H-alpha and He I/H-alpha are generally low in the diffuse WIM and in the faint filamentary structures. This suggests that the gas is warmer, in...

Madsen, G J

2004-01-01T23:59:59.000Z

356

Soft X-Ray Thomson Scattering in Warm Dense Hydrogen at FLASH  

DOE Green Energy (OSTI)

We present collective Thomson scattering with soft x-ray free electron laser radiation as a method to track the evolution of warm dense matter plasmas with {approx}200 fs time resolution. In a pump-probe scheme an 800 nm laser heats a 20 {micro}m hydrogen droplet to the plasma state. After a variable time delay in the order of ps the plasma is probed by an x-ray ultra violet (XUV) pulse which scatters from the target and is recorded spectrally. Alternatively, in a self-Thomson scattering experiment, a single XUV pulse heats the target while a portion of its photons are being scattered probing the target. From such inelastic x-ray scattering spectra free electron temperature and density can be inferred giving insight on relaxation time scales in plasmas as well as the equation of state. We prove the feasibility of this method in the XUV range utilizing the free electron laser facility in Hamburg, FLASH. We recorded Thomson scattering spectra for hydrogen plasma, both in the self-scattering and in the pump-probe mode using optical laser heating.

Faustlin, R R; Toleikis, S; Bornath, T; Doppner, T; Dusterer, S; Forster, E; Fortmann, C; Glenzer, S H; Gode, S; Gregori, G; Irsig, R; Laarmann, T; Lee, H J; Li, B; Meiwes-Broer, K; Mithen, J; Przystawik, A; Redlin, H; Redmer, R; Reinholz, H; Ropke, G; Tavella, F; Thiele, R; Tiggesbaumker, J; Uschmann, I; Zastrau, U; Tschentscher, T

2009-07-15T23:59:59.000Z

357

Roles of Anomalous Tibetan Plateau Warming on the Severe 2008 Winter Storm in Central-Southern China  

Science Conference Proceedings (OSTI)

Anomalous warming occurred over the Tibetan Plateau (TP) before and during the disastrous freezing rain and heavy snow hitting central and southern China in January 2008. The relationship between the TP warming and this extreme event is ...

Qing Bao; Jing Yang; Yimin Liu; Guoxiong Wu; Bin Wang

2010-06-01T23:59:59.000Z

358

The Development of Warm Gas Cleanup Technologies for the Removal of Sulfur Containing Species from Steam Hydrogasification  

E-Print Network (OSTI)

Gupta, B. Turk, M. Lesemann. RTI/Eastman warm syngas clean-feasibility analysis of RTI warm gas cleanup(WGCU)reactor was constructed by RTI from DOE-Morgantown gasifier,

Luo, Qian

2012-01-01T23:59:59.000Z

359

Dust Bowl migration as an analog for possible global warming-induced migration from Mexico  

SciTech Connect

As a result of increases in CO{sub 2} and other radiatively important trace gases, scientists have predicted increases in mean worldwide temperatures of 2--5 degrees C over the next 50 to 100 years. Such temperature increases may result in climate modifications that would in turn be associated with increases in drought and desertification and could even change the patterns of the monsoons and tropical rains, which are important to agriculture throughout the world. They predicted that the rise in sea level caused by melting and thermal expansion of glaciers and polar icecaps could flood large population centers, destroying habitation and displacing populations. This will result in approximately 50 million ``environmental refugees`` worldwide, triple the number of today. The expected shifts in precipitation are also likely to result in (1) increased runoff contaminated with pesticides, salts, garbage, sewage, and eroded soil, and (2) drought also leading to increased soil erosion and salinization, as well as depletion of limited water resources. The total impact of global warming on agriculture and human habitation could considerably slow the economic development of some nations and would particularly affect agricultural production. Loss of homes, the inability to raise food, an increased prevalence of disease and worsened economic conditions may drive people to leave their homelands, seeking entry into countries which have more resources and greater resistance to the economic consequences of climatic change. This report looks at the possible environmental impacts and economic impacts of the greenhouse effect on Mexico while using the American Dust Bowl event as an analog.

Turner, M.H.; Longstreth, J.D.; Johnson, A.K.; Rosenberg, N.J.

1994-06-01T23:59:59.000Z

360

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

December 3, 2001 December 3, 2001 Spot prices at the Henry Hub remain low for this time of year, as prices declined 16 cents from Friday-to-Friday. The spot price rose $0.50 per MMBtu from Monday to Wednesday, and then fell almost 60 cents by Friday to trade for $1.77 at the end of the week. Concern about the final resolution of the surprising decline of the Enron Corporation appears to be contributing to the price variability on the spot market. On the NYMEX futures market the December contract closed on Wednesday at $2.316 per MMBtu, more than $1.00 below what it began trading for as the near-month contract in late October. The unseasonably warm temperatures that have dominated the weather in much of the country continued last week in the eastern portion of the country. (Temperature Map) (Temperature Deviation Map) In addition, the National Weather Service's (NWS) latest 6 to 10 day forecast is calling for a warm weather pattern to continue into early December. Because of the combination of warmer-than-normal temperatures and favorable prices, this year's refill season has continued into the 2nd half of November with an estimated 12 Bcf added to working gas stocks during the third week of last month. The spot price of West Texas Intermediate (WTI) crude oil moved up about $0.85 per barrel on Friday and ended the week at $19.50 or about $3.36 per MMBtu.

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361

Heat and Mass Budgets of the Warm Upper Layer of the Tropical Atlantic Ocean in 197999  

Science Conference Proceedings (OSTI)

The mass and heat budgets of the warm upper-ocean layer are investigated in the equatorial Atlantic using in situ observations during the period 197999, which encompassed a series of warm events in the equatorial Atlantic. The warm water layer ...

F. Vauclair; Y. du Penhoat; G. Reverdin

2004-04-01T23:59:59.000Z

362

Greenhouse warming potential of candidate gaseous diffusion plant coolants  

SciTech Connect

A preliminary estimate has been made of the greenhouse warming potential (GWP) of coolants under consideration as substitutes for CFC-114 in the gaseous diffusion plants. Coolants are not at present regulated on the basis of GWP, but may well be in the future. Use of c-C{sub 4}F{sub 8} or n-C{sub 4}F{sub 10} is estimated to have three to four times the greenhouse impact of an equivalent use of CFC-114. Neither of the substitutes, of course, would cause any ozone depletion. HCFC-124 (a probable commercial substitute for CFC-114, but not presently under serious consideration due to its relatively high UF{sub 6} reactivity) would have much less greenhouse and ozone depletion impact than CFC-114. The GWP estimates derive from a simple model that approximately reproduces literature values for similar compounds. The major uncertainty in these estimates lies in the atmospheric lifetime, especially of the perfluorocarbon compounds, for which little reliable information exists. In addition to GWP estimates for coolants, the overall greenhouse impact of the gaseous diffusion plants is calculated, including indirect power-related CO{sub 2} emissions. This result is used to compare greenhouse impacts of nuclear- and coal-produced electricity. 11 refs., 2 figs., 5 tabs.

Trowbridge, L.D.

1991-03-01T23:59:59.000Z

363

Global warming---The role for nuclear power  

SciTech Connect

Nuclear power is currently making an important contribution to our energy requirements. It provides 17% of the world's electricity today --- almost 20% in the US. Reducing the emissions of carbon dioxide over the next 30 to 50 years sufficiently to address the issue of global warming can only be accomplished by a combination of much improved energy efficiency, substantial growth in use of nuclear power, and substantial growth in use of renewable energy. This paper discusses new initiatives in the major nuclear technologies (LWR, HTGR, LMR) which are emerging from a fundamental reexamination of nuclear power in response to the challenges and opportunities in the 21st century. To fulfill its role, nuclear power must gain worldwide acceptance as a viable energy option. The use of modern technology and passive'' safety features in next-generation nuclear power plants offers the potential to simplify their design and operation, enhance their safety, and reduce the cost of electricity. With such improvements, we believe nuclear power can regain public confidence and make a significant contribution to our energy future. 24 refs., 2 figs., 1 tab.

Jones, J.E. Jr.; Fulkerson, W. (Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

364

FORMATION OF ORGANIC MOLECULES AND WATER IN WARM DISK ATMOSPHERES  

Science Conference Proceedings (OSTI)

Observations from Spitzer and ground-based infrared spectroscopy reveal significant diversity in the molecular emission from the inner few AU of T Tauri disks. We explore theoretically the possible origin of this diversity by expanding on our earlier thermal-chemical model of disk atmospheres. We consider how variations in grain settling, X-ray irradiation, accretion-related mechanical heating, and the oxygen-to-carbon ratio can affect the thermal and chemical properties of the atmosphere at 0.25-40 AU. We find that these model parameters can account for many properties of the detected molecular emission. The column density of the warm (200-2000 K) molecular atmosphere is sensitive to grain settling and the efficiency of accretion-related heating, which may account, at least in part, for the large range in molecular emission fluxes that have been observed. The dependence of the atmospheric properties on the model parameters may also help to explain trends that have been reported in the literature between molecular emission strength and mid-infrared color, stellar accretion rate, and disk mass. We discuss whether some of the differences between our model results and the observations (e.g., for water) indicate a role for vertical transport and freezeout in the disk midplane. We also discuss how planetesimal formation in the outer disk (beyond the snowline) may imprint a chemical signature on the inner few AU of the disk and speculate on possible observational tracers of this process.

Najita, Joan R. [National Optical Astronomy Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719 (United States); Adamkovics, Mate; Glassgold, Alfred E. [Astronomy Department, University of California, Berkeley, CA 94720 (United States)

2011-12-20T23:59:59.000Z

365

Transitional solar dynamics, cosmic rays and global warming  

E-Print Network (OSTI)

Solar activity is studied using a cluster analysis of the time-fluctuations of the sunspot number. It is shown that in an Historic period the high activity components of the solar cycles exhibit strong clustering, whereas in a Modern period (last seven solar cycles: 1933-2007) they exhibit a white-noise (non-)clustering behavior. Using this observation it is shown that in the Historic period, emergence of the sunspots in the solar photosphere was strongly dominated by turbulent photospheric convection. In the Modern period, this domination was broken by a new more active dynamics of the inner layers of the convection zone. Then, it is shown that the dramatic change of the sun dynamics at the transitional period (between the Historic and Modern periods, solar cycle 1933-1944yy) had a clear detectable impact on Earth climate. A scenario of a chain of transitions in the solar convective zone is suggested in order to explain the observations, and a forecast for the global warming is suggested on the basis of this scenario. A relation between the recent transitions and solar long-period chaotic dynamics has been found. Contribution of the galactic turbulence (due to galactic cosmic rays) has been discussed. These results are also considered in a content of chaotic climate dynamics at millennial timescales.

A. Bershadskii

2008-05-14T23:59:59.000Z

366

Measurements of Multi-Layer Insulation at High Boundary Temperature, using a Simple Non-Calorimetric Method  

E-Print Network (OSTI)

In spite of abundant literature, the thermal performance of Multi-Layer Insulation (MLI) still deserves dedicated investigation for specific applications, as the achievable insulation strongly depends on installation details. Furthermore, less accurate information is available for warm than for cold boundaries, since errors due to edge effects in small test benches increase strongly with warm boundary temperature. We establish here the thermal performance of MLI between 300 K and 77 K or 4 K, without bringing calorimetric methods into play, through the accurate measurement of a temperature profile. A cylinder in thin copper, wrapped with MLI, is cooled at one extremity while suspended under vacuum inside a sheath at room temperature. For known thermal conductivity and thickness of the tube, the heat flux can be inferred from the temperature profile. In-situ measurement of the thermal conductivity is obtained by applying a know heat flow at the warm extremity of the cylinder. Results, cross-checked with a cali...

Mazzone, L; Rieubland, Jean Michel; Vandoni, Giovanna

2002-01-01T23:59:59.000Z

367

Global Cooling: Policies to Cool the World and Offset Global Warming from CO2 Using Reflective Roofs and Pavements  

Science Conference Proceedings (OSTI)

Increasing the solar reflectance of the urban surface reduce its solar heat gain, lowers its temperatures, and decreases its outflow of thermal infrared radiation into the atmosphere. This process of 'negative radiative forcing' can help counter the effects of global warming. In addition, cool roofs reduce cooling-energy use in air conditioned buildings and increase comfort in unconditioned buildings; and cool roofs and cool pavements mitigate summer urban heat islands, improving outdoor air quality and comfort. Installing cool roofs and cool pavements in cities worldwide is a compelling win-win-win activity that can be undertaken immediately, outside of international negotiations to cap CO{sub 2} emissions. We propose an international campaign to use solar reflective materials when roofs and pavements are built or resurfaced in temperate and tropical regions.

Akbari, Hashem; Levinson, Ronnen; Rosenfeld, Arthur; Elliot, Matthew

2009-08-28T23:59:59.000Z

368

Experimental Study on Shear Fatigue Behavior and Stiffness Performance of Warm Mix Asphalt by adding Synthetic Wax  

E-Print Network (OSTI)

Synthetic waxes produced by standard and registered processes may be used to manufacture Warm Mix Asphalt (WMA), which is a modified asphalt concrete produced, applied and compacted at temperatures below those typically required. This feature leads to environmental benefits, such as reduced energy consumption, gas and fume emissions, as well as to economic/operational advantages, such as lower production costs and greater hauling distances for extended construction seasons with tighter schedules. The present article serves to compare the mechanical performance of a WMA produced by adding synthetic wax with a traditional Hot Mix Asphalt (HMA) specimen, in terms of shear fatigue response and both complex and stiffness moduli. The experimental results and related modeling work demonstrate that adding synthetic wax into the WMA composition does not hinder either the destructive or non-destructive performance of an HMA, and this finding is corroborated by respectively measuring fatigue life and stiffness.

Christophe Petit; Anne Millien; Francesco Canestrari; Valter Pannunzio; Amadeo Virgili

2012-03-13T23:59:59.000Z

369

Effects of warming on the structure and function of a boreal black spruce forest  

Science Conference Proceedings (OSTI)

A strong argument can be made that there is a greater need to study the effect of warming on boreal forests more than on any other terrestrial biome. Boreal forests, the second largest forest biome, are predicted to experience the greatest warming of any forest biome in the world, but a process-based understanding of how warming will affect the structure and function of this economically and ecologically important forest biome is lacking. The effects of warming on species composition, canopy structure and biogeochemical cycles are likely to be complex; elucidating the underlying mechanisms will require long-term whole-ecosystem manipulation to capture all the complex feedbacks (Shaver et al. 2000, Rustad et al. 2001, Stromgren 2001). The DOE Program for Ecosystem Research funded a three year project (2002-2005) to use replicated heated chambers on soil warming plots in northern Manitoba to examine the direct effects of whole-ecosystem warming. We are nearing completion of our first growing season of measurements (fall 2004). In spite of the unforeseen difficulty of installing the heating cable, our heating and irrigation systems worked extremely well, maintaining environmental conditions within 5-10% of the specified design 99% of the time. Preliminary data from these systems, all designed and built by our laboratory at the University of Wisconsin, support our overall hypothesis that warming will increase the carbon sink strength of upland boreal black spruce forests. I request an additional three years of funding to continue addressing the original objectives: (1) Examine the effect of warming on phenology of overstory, understory and bryophyte strata. Sap flux systems and dendrometer bands, monitored by data loggers, will be used to quantify changes in phenology and water use. (2) Quantify the effects of warming on nitrogen and water use by overstory, understory and bryophytes. (3) Compare effects of warming on autotrophic respiration and above- and belowground net primary production (NPP) budgets. Autotrophic respiration budgets will be constructed using chamber measurements for each tissue and NPP and standard allometry techniques (Gower et al. 1999). (4) Compare microbial and root dynamics, and net soil surface CO2 flux, of control and warmed soils to identify causes that may explain the hypothesized minimal effect of soil warming on soil surface CO2 flux. Fine root production and turnover will be quantified using minirhizotrons, and microbial dynamics will be determined using laboratory mineralization incubations. Soil surface CO2 flux will be measured using automated soil surface CO2 flux systems and portable CO2 analyzers. The proposed study builds on the existing research programs Gower has in northern Manitoba and would not be possible without in-kind services and financial support from Manitoba Hydro and University of Wisconsin.

Stith T.Gower

2010-03-03T23:59:59.000Z

370

A New Microwave Temperature Profiler … First Measurements in Polar Regions  

NLE Websites -- All DOE Office Websites (Extended Search)

Microwave Temperature Profiler - First Microwave Temperature Profiler - First Measurements in Polar Regions E. N. Kadygrov, A. V. Koldaev, and A. S. Viazankin Central Aerological Observatory Moscow, Russia A. Argentini, and A. Conidi Institute of Atmospheric Physics CNR, Italy Introduction Temperature inversions are a ubiquitous feature of the high latitude atmospheric boundary layer (ABL). In Polar Regions, the temperature inversion is a complicated phenomenon involving interactions between surface radiative cooling, subsidence and warm air advection. In the period 1997-2002, several microwave temperature profilers were used to measure temperature inversion parameters at one of the three sites of the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM)

371

Beamline Temperatures  

NLE Websites -- All DOE Office Websites (Extended Search)

Temperatures Temperatures Energy: 3.0000 GeV Current: 493.2242 mA Date: 11-Jan-2014 21:40:00 Beamline Temperatures Energy 3.0000 GeV Current 493.2 mA 11-Jan-2014 21:40:00 LN:MainTankLevel 124.4 in LN:MainTankPress 56.9 psi SPEAR-BL:B120HeFlow 15.4 l/min SPEAR-BL:B131HeFlow 22.2 l/min BL 4 BL02:LCW 0.0 ℃ BL02:M0_LCW 31.5 ℃ BL 4-1 BL04-1:BasePlate -14.0 ℃ BL04-1:Bottom1 46.0 ℃ BL04-1:Bottom2 47.0 ℃ BL04-1:Lower 32.0 ℃ BL04-1:Moly 46.0 ℃ BL04-1:ChinGuard1 31.0 ℃ BL04-1:ChinGuard2 31.0 ℃ BL04-1:FirstXtalA -167.0 ℃ BL04-1:FirstXtalB -172.0 ℃ BL04-1:Pad1 31.0 ℃ BL04-1:Pad2 31.0 ℃ BL04-1:SecondXtalA -177.0 ℃ BL04-1:SecondXtalB -175.0 ℃ BL 4-2 BL04-2:BasePlate -14.0 ℃ BL04-2:Bottom1 24.0 ℃ BL04-2:Bottom2 25.0 ℃

372

Rising Sea Levels Due to Global Warming Are Unstoppable  

NLE Websites -- All DOE Office Websites (Extended Search)

Related to Global Temperature versus Sea Level Rise," Nature Climate Change 2, 576-580 (2012), doi:10.1038nclimate1529. About NERSC and Berkeley Lab The National Energy Research...

373

Why Hasnt Earth Warmed as Much as Expected?  

Science Conference Proceedings (OSTI)

The observed increase in global mean surface temperature (GMST) over the industrial era is less than 40% of that expected from observed increases in long-lived greenhouse gases together with the best-estimate equilibrium climate sensitivity given ...

Stephen E. Schwartz; Robert J. Charlson; Ralph A. Kahn; John A. Ogren; Henning Rodhe

2010-05-01T23:59:59.000Z

374

Comments on [open quotes]Global warming: A reduced threat [close quotes] by P. J. Michaels and D. E. Stooksbury  

SciTech Connect

The author of this letter criticizes Michaels and Stooksbury (1992) for arguing that, because climate models predict more warming for the last century than has been observed, the model predictions of major greenhouse warming must be wrong. It is the position of the author that this is not a valid argument, although the warming may have been relatively mild. In this letter, the author defends the belief that the magnitude of the recent warming actually tells very little about the sensitivity of the climate system to greenhouse gas emissions. Reasons for the warming observed over the last hundred years are summarized. 4 refs.

Duffy, P.B. (Lawrence Livermore National Lab., CA (United States))

1993-05-01T23:59:59.000Z

375

DOE's Energy Savers Website Helps Consumers "Stay Warm, Save Money" |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Savers Website Helps Consumers "Stay Warm, Save Money" Energy Savers Website Helps Consumers "Stay Warm, Save Money" DOE's Energy Savers Website Helps Consumers "Stay Warm, Save Money" October 1, 2008 - 3:43pm Addthis DOE Helps Americans Be Energy Efficient at Home and Save on Energy Costs WASHINGTON - The U.S. Department of Energy (DOE) today, on the first day of Energy Awareness Month, launched the Stay Warm, Save Money website and educational outreach campaign to help consumers be more energy efficient and save on energy costs. The information focuses on proactive ways to implement simple, cost-effective, energy saving solutions for both homes and businesses this winter and will expand to year-round home energy efficient tips. The site also features the Department's work to develop

376

A New Visibility Parameterization for Warm-Fog Applications in Numerical Weather Prediction Models  

Science Conference Proceedings (OSTI)

The objective of this work is to suggest a new warm-fog visibility parameterization scheme for numerical weather prediction (NWP) models. In situ observations collected during the Radiation and Aerosol Cloud Experiment, representing boundary ...

I. Gultepe; M. D. Mller; Z. Boybeyi

2006-11-01T23:59:59.000Z

377

Ocean Heat Transport as a Cause for Model Uncertainty in Projected Arctic Warming  

Science Conference Proceedings (OSTI)

The Arctic climate is governed by complex interactions and feedback mechanisms between the atmosphere, ocean, and solar radiation. One of its characteristic features, the Arctic sea ice, is very vulnerable to anthropogenically caused warming. ...

Irina Mahlstein; Reto Knutti

2011-03-01T23:59:59.000Z

378

NOGAPS-ALPHA Simulations of the 2002 Southern Hemisphere Stratospheric Major Warming  

Science Conference Proceedings (OSTI)

A high-altitude version of the Navy Operational Global Atmospheric Prediction System (NOGAPS) spectral forecast model is used to simulate the unusual September 2002 Southern Hemisphere stratospheric major warming. Designated as NOGAPS-Advanced ...

Douglas R. Allen; Lawrence Coy; Stephen D. Eckermann; John P. McCormack; Gloria L. Manney; Timothy F. Hogan; Young-Joon Kim

2006-02-01T23:59:59.000Z

379

Effect of Aerosol on the Susceptibility and Efficiency of Precipitation in Warm Trade Cumulus Clouds  

Science Conference Proceedings (OSTI)

Large-eddy simulations of warm, trade wind cumulus clouds are conducted for a range of aerosol conditions with a focus on precipitating clouds. Individual clouds are tracked over the course of their lifetimes. Precipitation rate decreases ...

Hongli Jiang; Graham Feingold; Armin Sorooshian

2010-11-01T23:59:59.000Z

380

Probing the Fast and Slow Components of Global Warming by Returning Abruptly to Preindustrial Forcing  

Science Conference Proceedings (OSTI)

The fast and slow components of global warming in a comprehensive climate model are isolated by examining the response to an instantaneous return to preindustrial forcing. The response is characterized by an initial fast exponential decay with an ...

Isaac M. Held; Michael Winton; Ken Takahashi; Thomas Delworth; Fanrong Zeng; Geoffrey K. Vallis

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Simulations of the February 1979 Stratospheric Sudden Warming: Model Comparisons and Three-Dimensional Evolution  

Science Conference Proceedings (OSTI)

The evolution of the stratospheric flow during the major stratospheric sudden warming of February 1979 is studied using two primitive equation models of the stratosphere and mesosphere. The United Kingdom Meteorological Office Stratosphere-...

G. L. Manney; J. D. Farrara; C. R. Mechoso

1994-06-01T23:59:59.000Z

382

Amazonian Deforestation: Impact of Global Warming on the Energy Balance and Climate  

Science Conference Proceedings (OSTI)

A coupled biosphereatmosphere statisticaldynamical model is used to study the relative roles of the impact of the land change caused by tropical deforestation and global warming on energy balance and climate. Three experiments were made: 1) ...

E. C. Moraes; Sergio H. Franchito; V. Brahmananda Rao

2013-03-01T23:59:59.000Z

383

Mesoscale Generation of Available Potential Energy in the Warm Sector of an Extratropical Cyclone  

Science Conference Proceedings (OSTI)

Generation of available potential energy (APE) is computed for the warm sector of an extratropical cyclone containing intense convection. Three hourly mesoscale rawinsonde data from the 1011 April day of AVESESAME 1979 are used to evaluate ...

Henry E. Fuelberg; Mark G. Ruminski; David O'C. Starr

1985-07-01T23:59:59.000Z

384

Multiparameter Radar and Aircraft Study of Raindrop Spectral Evolution in Warm-based Clouds  

Science Conference Proceedings (OSTI)

Radar measurements of reflectivity differential reflectivity, and X-band (3-cm wavelength) specific attenuation are used to inter some microphysical characteristics of warm-based convective clouds with emphasis on raindrop spectral evolution. The ...

V. N. Bringi; D. A. Burrows; S. M. Menon

1991-06-01T23:59:59.000Z

385

Interactions of Cold- and Warm-Core Rings with Environmental Shear  

Science Conference Proceedings (OSTI)

A two-layer analytical model of cold- and warm-core rings has been constructed to explore steady interactions of isolated eddies with horizontally sheared flows around and below the eddies. Steady inviscid solutions to the quasi-geostrophic ...

Doron Nof; Chuan Shi

1989-07-01T23:59:59.000Z

386

Stratospheric Sudden Warmings as Self-Tuning Resonances. Part I: Vortex Splitting Events  

Science Conference Proceedings (OSTI)

The fundamental dynamics of vortex splitting stratospheric sudden warmings (SSWs), which are known to be predominantly barotropic in nature, are reexamined using an idealized single-layer f-plane model of the polar vortex. The aim is to ...

N. Joss Matthewman; J. G. Esler

2011-11-01T23:59:59.000Z

387

The Role of Giant and Ultragiant Aerosol Particles in Warm Rain Initiation  

Science Conference Proceedings (OSTI)

Giant and ultragiant aerosol particles can play an important role in warm rain initiation. Recent aerosol measurements have established that particles as large as 100 ?m are a regular part of the atmospheric aerosol. When ingested in growing ...

David B. Johnson

1982-02-01T23:59:59.000Z

388

Atlantic Warm-Pool Variability in the IPCC AR4 CGCM Simulations  

Science Conference Proceedings (OSTI)

This study investigates Atlantic warm pool (AWP) variability in the twentieth century and preindustrial simulations of coupled GCMs submitted to the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4). In the twentieth-...

Hailong Liu; Chunzai Wang; Sang-Ki Lee; David Enfield

2012-08-01T23:59:59.000Z

389

Climategate Undermined Belief in Global Warming Among Many American TV Meteorologists  

Science Conference Proceedings (OSTI)

Television (TV) meteorologists are a potentially important source of informal climate change education in that most American adults watch local TV news and consider TV weather reporters to be a trusted source of global warming information. In ...

Edward Maibach; James Witte; Kristopher Wilson

2011-01-01T23:59:59.000Z

390

Increased Occurrence of Stratospheric Sudden Warmings during El Nio as Simulated by WACCM  

Science Conference Proceedings (OSTI)

Experiments with Whole Atmosphere Community Climate Model (WACCM) under perpetual January conditions indicate that stratospheric sudden warmings (SSWs) are twice as likely to occur in El Nio winters than in La Nia winters, in basic agreement ...

Masakazu Taguchi; Dennis L. Hartmann

2006-02-01T23:59:59.000Z

391

Convection and Easterly Wave Structures Observed in the Eastern Pacific Warm Pool during EPIC-2001  

Science Conference Proceedings (OSTI)

During SeptemberOctober 2001, the East Pacific Investigation of Climate Processes in the Coupled OceanAtmosphere System (EPIC-2001) intertropical convergence zone (ITCZ) field campaign focused on studies of deep convection in the warm-pool ...

Walter A. Petersen; Robert Cifelli; Dennis J. Boccippio; Steven A. Rutledge; Chris Fairall

2003-08-01T23:59:59.000Z

392

Energy and environmental policy and electric utilities' choice under uncertain global warming  

E-Print Network (OSTI)

The paper reviews and discusses uncertainty about global warming science, impact on society. It also discusses what assumptions have been made and how appropriate the assumptions in scenarios have been for estimating global ...

Takahashi, Masaki

1992-01-01T23:59:59.000Z

393

Does Increased Predicted Warm-Season Rainfall Indicate Enhanced Likelihood of Rain Occurrence?  

Science Conference Proceedings (OSTI)

The likelihood of simulated rainfall above a specified threshold being observed is evaluated as a function of the amounts predicted by two mesoscale models. Evaluations are performed for 20 warm-season mesoscale convective system events over the ...

William A. Gallus Jr.; Moti Segal

2004-12-01T23:59:59.000Z

394

Improving Quantitative Precipitation Forecasts in the Warm Season: A USWRP Research and Development Strategy  

Science Conference Proceedings (OSTI)

Warm-season quantitative precipitation forecasts (QPFs) are the poorest performance area of forecast systems worldwide. They stubbornly fall further behind while other aspects of weather prediction steadily improve. Unless a major effort is ...

J. Michael Fritsch; R. E. Carbone

2004-07-01T23:59:59.000Z

395

Modulation of the Diurnal Cycle of Warm-Season Precipitation by Short-Wave Troughs  

Science Conference Proceedings (OSTI)

Traveling deep tropospheric disturbances of wavelengths ~1500 km (short waves) have long been known to play an important role in the initiation and maintenance of warm-season convection. To date, relatively few studies have formally documented the ...

John D. Tuttle; Chris A. Davis

2013-06-01T23:59:59.000Z

396

Mechanisms of Thermohaline Mode Switching with Application to Warm Equable Climates  

Science Conference Proceedings (OSTI)

A three-box model of haline and thermal mode overturning is developed to study thermohaline oscillations found in a number of ocean general circulation models and that might have occurred in warm equable paleoclimates. By including convective ...

Rong Zhang; Michael Follows; John Marshall

2002-08-01T23:59:59.000Z

397

Climate Change over the Equatorial Indo-Pacific in Global Warming  

Science Conference Proceedings (OSTI)

The response of the equatorial Indian Ocean climate to global warming is investigated using model outputs submitted to the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report. In all of the analyzed climate models, the SSTs ...

Chie Ihara; Yochanan Kushnir; Mark A. Cane; Victor H. de la Pea

2009-05-01T23:59:59.000Z

398

Results of the Thailand Warm-Cloud Hygroscopic Particle Seeding Experiment  

Science Conference Proceedings (OSTI)

A randomized, warm-rain enhancement experiment was carried out during 199598 in the Bhumibol catchment area in northwestern Thailand. The experiment was conducted in accordance with a randomized, floating singletarget design. The seeding ...

Bernard A. Silverman; Wathana Sukarnjanaset

2000-07-01T23:59:59.000Z

399

A Coupled Theory of Tropical Climatology: Warm Pool, Cold Tongue, and Walker Circulation  

Science Conference Proceedings (OSTI)

Based on results from analytic and general circulation models, the authors propose a theory for the coupled warm pool, cold tongue, and Walker circulation system. The intensity of the coupled system is determined by the coupling strength, the ...

Zhengyu Liu; Boyin Huang

1997-07-01T23:59:59.000Z

400

A Statistical Procedure to Forecast Warm Season Lightning over Portions of the Florida Peninsula  

Science Conference Proceedings (OSTI)

Sixteen years of cloud-to-ground lightning data from the National Lightning Detection Network and morning radiosonde-derived parameters are used to develop a statistical scheme to provide improved forecast guidance for warm season afternoon and ...

Phillip E. Shafer; Henry E. Fuelberg

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

The Dynamic Response of the Greenland and Antarctic Ice Sheets to Multiple-Century Climatic Warming  

Science Conference Proceedings (OSTI)

New calculations were performed to investigate the combined response of the Greenland and Antarctic ice sheets to a range of climatic warming scenarios over the next millennium. Use was made of fully dynamic 3D thermomechanic ice sheet models, ...

Philippe Huybrechts; Jan de Wolde

1999-08-01T23:59:59.000Z

402

Reasons for Larger Warming Projections in the IPCC Third Assessment Report  

Science Conference Proceedings (OSTI)

Projections of future warming in the Intergovernmental Panel on Climate Change (IPCC) Third Assessment Report (TAR) are substantially larger than those in the Second Assessment Report (SAR). The reasons for these differences are documented and ...

T. M. L. Wigley; S. C. B. Raper

2002-10-01T23:59:59.000Z

403

The Orographic Modulation of Pre-Warm-Front Precipitation in Southern New England  

Science Conference Proceedings (OSTI)

Topographic forcing over the hills and small mountains of southern New England plays an important role in determining the distribution of pre-warm-front precipitation from winter cyclones. Upslope regions receive 2060% more precipitation than do ...

Richard E. Passarelli Jr.; Hannah Boehme

1983-05-01T23:59:59.000Z

404

Propagation and Diurnal Evolution of Warm Season Cloudiness in the Australian and Maritime Continent Region  

Science Conference Proceedings (OSTI)

Warm season cold cloud-top climatology in the AustralIndonesian region is examined for evidence of propagating modes of precipitation that originate from elevated heat sources and the diurnal heating cycle. Using satellite-inferred cloudiness ...

T. D. Keenan; R. E. Carbone

2008-03-01T23:59:59.000Z

405

What Drives the Seasonal Onset and Decay of the Western Hemisphere Warm Pool?  

Science Conference Proceedings (OSTI)

The annual heat budget of the Western Hemisphere warm pool (WHWP) is explored using the output of an ocean general circulation model (OGCM) simulation. According to the analysis, the WHWP cannot be considered as a monolithic whole with a single ...

S-K. Lee; D. B. Enfield; C. Wang

2007-05-01T23:59:59.000Z

406

Tracking Soil Microbes' Response to Long-Term Warming | U.S....  

Office of Science (SC) Website

University of New Hampshire Durham, NH 03824 serita.frey@unh.edu Funding This work, including maintenance of the long-term soil warming experiments, was supported by a...

407

California Winter Precipitation Change under Global Warming in the Coupled Model Intercomparison Project Phase 5 Ensemble  

Science Conference Proceedings (OSTI)

Projections of possible precipitation change in California under global warming have been subject to considerable uncertainty because California lies between the region anticipated to undergo increases in precipitation at mid-to-high latitudes and ...

J. David Neelin; Baird Langenbrunner; Joyce E. Meyerson; Alex Hall; Neil Berg

2013-09-01T23:59:59.000Z

408

Global warming, energy efficiency and the role of the built environment  

E-Print Network (OSTI)

This thesis attempts to explore the relationships between the Buildings Sector, energy efficiency and global warming. Through a qualitative analysis the author illustrates the connection between these three areas and shows ...

DiBona, Donna K

2008-01-01T23:59:59.000Z

409

Interannual Variability in the Southern Hemisphere Circulation Organized by Stratospheric Final Warming Events  

Science Conference Proceedings (OSTI)

A composite observational analysis is presented demonstrating that austral stratospheric final warming (SFW) events provide a substantial organizing influence upon the large-scale atmospheric circulation in the Southern Hemisphere. In particular, ...

Robert X. Black; Brent A. McDaniel

2007-08-01T23:59:59.000Z

410

Emission Scenario Dependency of Precipitation on Global Warming in the MIROC3.2 Model  

Science Conference Proceedings (OSTI)

The precipitation sensitivity per 1 K of global warming in twenty-first-century climate projections is smaller in an emission scenario with larger greenhouse gas concentrations and aerosol emissions, according to the Model for Interdisciplinary ...

Hideo Shiogama; Seita Emori; Kiyoshi Takahashi; Tatsuya Nagashima; Tomoo Ogura; Toru Nozawa; Toshihiko Takemura

2010-05-01T23:59:59.000Z

411

A Possible Constraint on Regional Precipitation Intensity Changes under Global Warming  

Science Conference Proceedings (OSTI)

Changes in daily precipitation versus intensity under a global warming scenario in two regional climate simulations of the United States show a well-recognized feature of more intense precipitation. More important, by resolving the precipitation ...

W. J. Gutowski Jr.; E. S. Takle; K. A. Kozak; J. C. Patton; R. W. Arritt; J. H. Christensen

2007-12-01T23:59:59.000Z

412

A Numerical Modeling Study of Warm Offshore Flow over Cool Water  

Science Conference Proceedings (OSTI)

Numerical simulations of boundary layer evolution in offshore flow of warm air over cool water are conducted and compared with aircraft observations of mean and turbulent fields made at Duck, North Carolina. Two models are used: a two-dimensional,...

Eric D. Skyllingstad; Roger M. Samelson; Larry Mahrt; Phil Barbour

2005-02-01T23:59:59.000Z

413

Planetary Wave Breaking and Tropospheric Forcing as Seen in the Stratospheric Sudden Warming of 2006  

Science Conference Proceedings (OSTI)

The major stratospheric sudden warming (SSW) of January 2006 is examined using meteorological fields from Goddard Earth Observing System version 4 (GEOS-4) analyses and forecast fields from the Navy Operational Global Atmospheric Prediction ...

Lawrence Coy; Stephen Eckermann; Karl Hoppel

2009-02-01T23:59:59.000Z

414

Modeling Study of Ice Formation in Warm-Based Precipitating Shallow Cumulus Clouds  

Science Conference Proceedings (OSTI)

Observations of large concentrations of ice particles in the dissipating stage of warm-based precipitating shallow cumulus clouds point to the limitations of scientists understanding of the physics of such clouds and the possible role of cloud ...

Jiming Sun; Parisa A. Ariya; Henry G. Leighton; Man Kong Yau

2012-11-01T23:59:59.000Z

415

Propagation and Selective Transmission of Internal Gravity Waves in a Sudden Warming  

Science Conference Proceedings (OSTI)

Longitudinally asymmetric features of gravity wave propagation in a sudden warming are examined theoretically, using observed geostrophic wind fields in the stratosphere for three days of winter 1979. It is shown that the wind patterns ...

Timothy J. Dunkerton; Neal Butchart

1984-04-01T23:59:59.000Z

416

Households to pay more than expected to stay warm this winter  

U.S. Energy Information Administration (EIA) Indexed Site

stay warm this winter Following a colder-than-expected November, U.S. households are forecast to consume more heating fuels than previously expected....resulting in higher heating...

417

Climatology of Warm Boundary Layer Clouds at the ARM SGP Site and Their Comparison to Models  

Science Conference Proceedings (OSTI)

A 4-yr climatology (19972000) of warm boundary layer cloud properties is developed for the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site. Parameters in the climatology include cloud ...

Manajit Sengupta; Eugene E. Clothiaux; Thomas P. Ackerman

2004-12-01T23:59:59.000Z

418

Multiscale Temporal Variability of Warm-Season Precipitation over North America: Statistical Analysis of Radar Measurements  

Science Conference Proceedings (OSTI)

Directionally averaged time series of precipitation rates for eight warm seasons (19962003) over the continental United States derived from Next Generation Weather Radar (NEXRAD) measurements are analyzed using spectral decomposition methods. ...

Hsiao-ming Hsu; Mitchell W. Moncrieff; Wen-wen Tung; Changhai Liu

2006-09-01T23:59:59.000Z

419

A Numerical Study of the Warm Rain Process in Orographic Clouds  

Science Conference Proceedings (OSTI)

A technique for numerical simulation of a stationary, two-dimensional laminar flow process is described. Based on this technique, a model for warm rain microphysics in an orographic cloud was developed. The model includes condensation, ...

Naihui Song; John Marwitz

1989-11-01T23:59:59.000Z

420

Synoptic typing and precursors of heavy warm-season precipitation events at Montreal, Quebec  

Science Conference Proceedings (OSTI)

A precipitation climatology is compiled for warm-season events at Montreal, Quebec using 6-h precipitation data. 1663 events are recorded and partitioned into three intensity categories (heavy, moderate, and light), based on percentile ranges.

Shawn M. Milrad; Eyad H. Atallah; John R. Gyakum; Giselle Dookhie

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Simulations of Dynamics and Transport during the September 2002 Antarctic Major Warming  

Science Conference Proceedings (OSTI)

A mechanistic model simulation initialized on 14 September 2002, forced by 100-hPa geopotential heights from Met Office analyses, reproduced the dynamical features of the 2002 Antarctic major warming. The vortex split on 25 September; recovery ...

Gloria L. Manney; Joseph L. Sabutis; Douglas R. Allen; William A. Lahoz; Adam A. Scaife; Cora E. Randall; Steven Pawson; Barbara Naujokat; Richard Swinbank

2005-03-01T23:59:59.000Z

422

A Dynamical Interpretation of the Poleward Shift of the Jet Streams in Global Warming Scenarios  

Science Conference Proceedings (OSTI)

The role played by enhanced upper-tropospheric baroclinicity in the poleward shift of the jet streams in global warming scenarios is investigated. Major differences between the twentieth- and twenty-first-century simulations are first detailed ...

Gwendal Rivire

2011-06-01T23:59:59.000Z

423

Numerical Studies of Major and Minor Stratospheric Warmings Caused by Orographic Forcing  

Science Conference Proceedings (OSTI)

A primitive equation spectral model using spherical harmonics is formulated to study dynamic interactions between the troposphere and stratosphere in association with sudden stratospheric warmings. Using sigma coordinates for five tropospheric ...

J. P. Koermer; A. Kasahara; S. K. Kao

1983-06-01T23:59:59.000Z

424

Multiscale Variability of the Atmospheric Mixed Layer over the Western Pacific Warm Pool  

Science Conference Proceedings (OSTI)

Sounding data from Tropical Ocean Global Atmosphere Coupled OceanAtmosphere Response Experiment (TOGA COARE) have provided a first opportunity to document the variability of the atmospheric mixed layer over the western Pacific warm pool on ...

Richard H. Johnson; Paul E. Ciesielski; Jennifer A. Cotturone

2001-09-01T23:59:59.000Z

425

Regional Tropical Precipitation Change Mechanisms in ECHAM4/OPYC3 under Global Warming  

Science Conference Proceedings (OSTI)

Mechanisms of global warming impacts on regional tropical precipitation are examined in a coupled atmosphereocean general circulation model (ECHAM4/OPYC3). The pattern of the regional tropical precipitation changes, once established, tends to ...

Chia Chou; J. David Neelin; Jien-Yi Tu; Cheng-Ta Chen

2006-09-01T23:59:59.000Z

426

Heat Balance in the Pacific Warm Pool Atmosphere during TOGA COARE and CEPEX  

Science Conference Proceedings (OSTI)

The atmosphere above the western equatorial Pacific warm pool (WP) is an important source for the dynamic and thermodynamic forcing of the atmospheric general circulation. This study uses a high-resolution reanalysis and several observational ...

Baijun Tian; Guang Jun Zhang; V. Ramanathan

2001-04-01T23:59:59.000Z

427

Multiwavelength WHAM Observations of Extra-planar Warm Ionized Gas in the Galaxy  

E-Print Network (OSTI)

Abstract. We report on observations of several optical emission lines toward a variety of newly revealed faint, large-scale H?-emitting structures in the warm ionized medium (WIM) of the Galaxy. The lines include [N II] ?6583,

G. J. Madsen

2004-01-01T23:59:59.000Z

428

Warming of the North Pacific Ocean: Local AirSea Coupling and Remote Climatic Impacts  

Science Conference Proceedings (OSTI)

In this paper, global climatic response to the North Pacific oceanic warming is investigated in a series of coupled oceanatmosphere modeling experiments. In the model, an idealized heating is imposed over the North Pacific Ocean, while the ocean ...

Lixin Wu; Chun Li

2007-06-01T23:59:59.000Z

429

The Effect of Irrigation on Warm Season Precipitation in the Southern Great Plains  

Science Conference Proceedings (OSTI)

The synoptic and subsynoptic atmospheric processes that accompany statistically determined periods of irrigation-induced rainfall increases during the warm season in the Texas Panhandle are examined. Major results are as follows.

Anthony G. Barnston; Paul T. Schickedanz

1984-06-01T23:59:59.000Z

430

Cold and Warm Frontal Circulations in an Idealized Moist Semigeostrophic Baroclinic Wave  

Science Conference Proceedings (OSTI)

Diagnoses are presented of the three-dimensional vertical circulation for a coupled cold-warm frontal system in an idealized moist semi-geostrophic (SG) baroclinic wave. The vertical circulation is computed in SG space where the solution ...

Qin Xu

1990-10-01T23:59:59.000Z

431

Comments on Why Hasnt Earth Warmed as Much as Expected?  

Science Conference Proceedings (OSTI)

In a recent paper, Schwartz et al. suggest that 1) over the last century the earth has warmed less than expected, and they discuss several factors that could explain the discrepancy, including climate sensitivity estimates and aerosol forcing. ...

Reto Knutti; Gian-Kasper Plattner

2012-03-01T23:59:59.000Z

432

How Are Spring Snow Conditions in Central Canada Related to Early Warm-Season Precipitation?  

Science Conference Proceedings (OSTI)

The response of the warm-season atmosphere to antecedent snow anomalies has long been an area of study. This paper explores how the spring snow depth relates to subsequent precipitation in central Canada using ground observations, reanalysis ...

Hua Su; Robert E. Dickinson; Kirsten L. Findell; Benjamin R. Lintner

2013-06-01T23:59:59.000Z

433

The Interaction between Hurricane Opal (1995) and a Warm Core Ring in the Gulf of Mexico  

Science Conference Proceedings (OSTI)

Hurricane Opal (1995) experienced a rapid, unexpected intensification in the Gulf of Mexico that coincided with its encounter with a warm core ring (WCR). The relative positions of Opal and the WCR and the timing of the intensification indicate ...

Xiaodong Hong; Simon W. Chang; Sethu Raman; Lynn K. Shay; Richard Hodur

2000-05-01T23:59:59.000Z

434

Cool- and Warm-Season Precipitation Reconstructions over Western New Mexico  

Science Conference Proceedings (OSTI)

Precipitation over the southwestern United States exhibits distinctive seasonality, and contrasting oceanatmospheric dynamics are involved in the interannual variability of cool- and warm-season totals. Tree-ring chronologies based on annual-...

D. W. Stahle; M. K. Cleaveland; H. D. Grissino-Mayer; R. D. Griffin; F. K. Fye; M. D. Therrell; D. J. Burnette; D. M. Meko; J. Villanueva Diaz

2009-07-01T23:59:59.000Z

435

Comparative Global Warming Impacts of Electric Vapor-Compression and Direct-fired Absorption Equipment  

Science Conference Proceedings (OSTI)

This report compares the global warming impacts of electric vapor-compression and gas-fired absorption-cycle equipment for commercial cooling applications. Absorption chillers do not use ozone depleting refrigerants but substitution of alternative refrigerants in electrically driven vapor-compression cycle equipment also offers radically reduced or eliminated potential for stratospheric ozone depletion. Therefore, when comparing absorption-cycle and vapor-compression equipment, net global warming impacts...

1994-03-01T23:59:59.000Z

436

Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Warm Gas Multicontaminant Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas Description Integrated Gasification Combined Cycle (IGCC) technology offers a means to utilize coal -the most abundant fuel in the United States-to produce a host of products, ranging from electricity to value-added chemicals like transportation fuels and hydrogen, in an efficient, environmentally friendly manner. However, the overall cost (capital, operating,

437

Properties of warm absorbers in active galaxies: a systematic stability curve analysis  

E-Print Network (OSTI)

Signatures of warm absorbers are seen in soft X-ray spectra of about half of all Seyfert1 galaxies observed and in some quasars and blazars. We use the thermal equilibrium curve to study the influence of the shape of the ionizing continuum, density and the chemical composition of the absorbing gas on the existence and nature of the warm absorbers. We describe circumstances in which a stable warm absorber can exist as a multiphase medium or one with continuous variation in pressure. In particular we find the following results: i) the warm absorber exists only if the spectral index of the X-ray power-law ionizing continuum $\\alpha > 0.2$ and has a multiphase nature if $\\alpha \\sim 0.8$, which interestingly is the spectral index for most of the observed Seyfert 1 galaxies; ii) thermal and ionization states of highly dense warm absorbers are sensitive to their density if the ionizing continuum is sufficiently soft, i.e. dominated by the ultraviolet iii) absorbing gas with super-Solar metallicity is more likely to have a multiphase nature; iv) the nature of the warm absorber is significantly influenced by the absence of iron and associated elements which are produced in the later stages of star formation history in supernovae of type Ia.

Susmita Chakravorty; Ajit K. Kembhavi; Martin Elvis; Gary Ferland

2008-11-14T23:59:59.000Z

438

Optimized Phosphors for Warm White LED Light Engines  

Science Conference Proceedings (OSTI)

The objective of this program is to develop phosphor systems and LED light engines that have steady-state LED efficacies (using LEDs with a 60% wall-plug efficiency) of 105120 lm/W with correlated color temperatures (CCT) ~3000 K, color rendering indices (CRI) >85, <0.003 distance from the blackbody curve (dbb), and <2% loss in phosphor efficiency under high temperature, high humidity conditions. In order to reach these goals, this involves the composition and processing optimization of phosphors previously developed by GE in combination with light engine package modification.

Setlur, Anant; Brewster, Megan; Garcia, Florencio; Hill, M. Christine; Lyons, Robert; Murphy, James; Stecher, Tom; Stoklosa, Stan; Weaver, Stan; Happek, Uwe; Aesram, Danny; Deshpande, Anirudha

2012-07-30T23:59:59.000Z

439

Multiwavelength WHAM Observations of Extra-planar Warm Ionized Gas in the Galaxy  

E-Print Network (OSTI)

We report on observations of several optical emission lines toward a variety of newly revealed faint, large-scale H-alpha-emitting structures in the warm ionized medium (WIM) of the Galaxy. The lines include [N II] 6583, [N II] 5755, [S II] 6716, [O III] 5007, and He I 5876 and were obtained with the Wisconsin H-Alpha Mapper (WHAM) toward sightlines that probe both large filamentary features and the more diffuse WIM, from the outer Perseus spiral arm to the inner Galaxy. These emission lines allow us to explore the temperature and ionization conditions within the emitting gas and their variations between the different emission regions. We compare the relative intensities of the emission lines toward these faint H II structures to brighter, classical O star H II regions. We find that the line ratios of [N II]/H-alpha and [S II]/H-alpha are generally high, while [O III]/H-alpha and He I/H-alpha are generally low in the diffuse WIM and in the faint filamentary structures. This suggests that the gas is warmer, in a lower ionization state, and ionized by a softer spectrum than the gas in classical H II regions surrounding O stars, the presumed ionization source for the WIM. In addition, we find differences in the physical conditions between the large filamentary structures and the more diffuse WIM, suggesting that the filaments are regions of higher density, not geometrical projections of folds in large sheet-like or shell-like structures.

G. J. Madsen

2004-09-20T23:59:59.000Z

440

Natural gas and efficient technologies: A response to global warming  

DOE Green Energy (OSTI)

It has become recognized by the international scientific community that global warming due to fossil fuel energy buildup of greenhouse CO{sub 2} in the atmosphere is a real environmental problem. Worldwide agreement has also been reached to reduce CO{sub 2} emissions. A leading approach to reducing CO{sub 2} emissions is to utilize hydrogen-rich fuels and improve the efficiency of conversion in the power generation, transportation and heating sectors of the economy. In this report, natural gas, having the highest hydrogen content of all the fossil fuels, can have an important impact in reducing CO{sub 2} emissions. This paper explores natural gas and improved conversion systems for supplying energy to all three sectors of the economy. The improved technologies include combined cycle for power generation, the Carnol system for methanol production for the transportation sector and fuel cells for both power generation and transportation use. The reduction in CO{sub 2} from current emissions range from 13% when natural gas is substituted for gasoline in the transportation sector to 45% when substituting methanol produced by the Carnol systems (hydrogen from thermal decomposition of methane reacting with CO{sub 2} from coal-fired power plants) used in the transportation sector. CO{sub 2} reductions exceeding 60% can be achieved by using natural gas in combined cycle for power generation and Carnol methanol in the transportation sector and would, thus, stabilize CO{sub 2} concentration in the atmosphere predicted to avoid undue climate change effects. It is estimated that the total fossil fuel energy bill in the US can be reduced by over 40% from the current fuel bill. This also allows a doubling in the unit cost for natural gas if the current energy bill is maintained. Estimates of the total net incremental replacement capital cost for completing the new improved equipment is not more than that which will have to be spent to replace the existing equipment conducting business as usual.

Steinberg, M.

1998-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

SER Temperature Coefficient  

SciTech Connect

Experimentally determine the overall isothermal temperature coefficient of the SER up to the design operating temperatures.

Johnson, J.L.

1959-12-31T23:59:59.000Z

442

A Demonstration That Large-Scale Warming Is Not Urban  

Science Conference Proceedings (OSTI)

On the premise that urban heat islands are strongest in calm conditions but are largely absent in windy weather, daily minimum and maximum air temperatures for the period 19502000 at a worldwide selection of land stations are analyzed separately ...

David E. Parker

2006-06-01T23:59:59.000Z

443

Warming mineralises young and old soil carbon equally  

E-Print Network (OSTI)

Abstract. The temperature sensitivity of soil organic carbon decomposition is critical for predicting future climate change because soils store 2-3 times the amount of atmospheric carbon. Of particular controversy is the question, whether temperature sensitivity differs between young or labile and old or more stable carbon pools. Ambiguities in experimental methodology have so far limited corroboration of any particular hypothesis. Here, we show in a clear-cut approach that differences in temperature sensitivity between young and old carbon are negligible. Using the change in stable isotope composition in transitional systems from C3 to C4 vegetation, we were able to directly distinguish the temperature sensitivity of carbon differing several decades in age. This method had several advantages over previously followed approaches. It allowed to identify release of much older carbon, avoided un-natural conditions of long-term incubations and did not require arguable curve-fitting. Our results demonstrate that feedbacks of the carbon cycle on climate change are driven equally by young and old soil organic carbon. 1

F. Conen; J. Leifeld; B. Seth; C. Alewell

2006-01-01T23:59:59.000Z

444

Lowering Color Temperature of Y3Al5O12:Ce3+ White Light  

E-Print Network (OSTI)

to light bulbs, which require high durability and low energy consumption. How- ever, for warm white indoorLowering Color Temperature of Y3Al5O12:Ce3+ White Light Emitting Diodes Using Reddish Light light emitting diodes LEDs coated with a single phosphor is realized by employing a tunable short wave

Lee, Yong-Hee

445

Observed 19702005 Cooling of Summer Daytime Temperatures in Coastal California  

Science Conference Proceedings (OSTI)

This study evaluated 19502005 summer [JuneAugust (JJA)] mean monthly air temperatures for two California air basins: the South Coast Air Basin (SoCAB) and the San Francisco Bay Area (SFBA). The study focuses on the more rapid post-1970 warming ...

Bereket Lebassi; Jorge Gonzlez; Drazen Fabris; Edwin Maurer; Norman Miller; Cristina Milesi; Paul Switzer; Robert Bornstein

2009-07-01T23:59:59.000Z

446

ExploreNEOs. II. THE ACCURACY OF THE WARM SPITZER NEAR-EARTH OBJECT SURVEY  

Science Conference Proceedings (OSTI)

We report on results of observations of near-Earth objects (NEOs) performed with the NASA Spitzer Space Telescope as part of our ongoing (2009-2011) Warm Spitzer NEO survey ('ExploreNEOs'), the primary aim of which is to provide sizes and albedos of some 700 NEOs. The emphasis of the work described here is an assessment of the overall accuracy of our survey results, which are based on a semi-empirical generalized model of asteroid thermal emission. The NASA Spitzer Space Telescope has been operated in the so-called Warm Spitzer mission phase since the cryogen was depleted in 2009 May, with the two shortest-wavelength channels, centered at 3.6 {mu}m and 4.5 {mu}m, of the Infrared Array Camera continuing to provide valuable data. The set of some 170 NEOs in our current Warm Spitzer results catalog contains 28 for which published taxonomic classifications are available, and 14 for which relatively reliable published diameters and albedos are available. A comparison of the Warm Spitzer results with previously published results ('ground truth'), complemented by a Monte Carlo error analysis, indicates that the rms Warm Spitzer diameter and albedo errors are {+-}20% and {+-}50%, respectively. Cases in which agreement with results from the literature is worse than expected are highlighted and discussed; these include the potential spacecraft target 138911 2001 AE{sub 2}. We confirm that 1.4 appears to be an appropriate overall default value for the relative reflectance between the V band and the Warm Spitzer wavelengths, for use in correction of the Warm Spitzer fluxes for reflected solar radiation.

Harris, A. W.; Mommert, M. [DLR Institute of Planetary Research, Rutherfordstrasse 2, 12489 Berlin (Germany); Hora, J. L.; Fazio, G.; Smith, H. A.; Spahr, T. B. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-65 Cambridge, MA 02138 (United States); Mueller, M.; Delbo, M. [Univ. de Nice Sophia Antipolis, CNRS, Obs. de la Cote d'Azur, BP 4229, 06304 Nice Cedex 4 (France); Trilling, D. E.; Thomas, C. A. [Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ 86001 (United States); Bhattacharya, B. [NASA Herschel Science Center, Caltech, M/S 100-22, 770 South Wilson Ave. Pasadena, CA 91125 (United States); Bottke, W. F. [Southwest Research Institute, 1050 Walnut St., Suite 300, Boulder, CO 80302 (United States); Chesley, S.; Mainzer, A. [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States); Emery, J. P. [Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Dr., Knoxville, TN 37996 (United States); Penprase, B. [Department of Physics and Astronomy, Pomona College, 610 N. College Avenue, Claremont, CA 91711 (United States); Stansberry, J. A., E-mail: alan.harris@dlr.de [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)

2011-03-15T23:59:59.000Z

447

Ion temperature via laser scattering on ion Bernstein waves  

DOE Green Energy (OSTI)

Hydrogen ion temperature has been measured in a warm toroidal plasma with externally launched ion Bernstein waves detected by heterodyne CO/sub 2/ laser scattering. Radial scanning of the laser beam allows precise determination of k/sub perpendicular to/ for the finite ion Larmor radius wave (..omega.. approx. less than or equal to 2..cap omega../sub i/). Knowledge of the magnetic field strength and ion concentration then give a radially resolved ion temperature from the dispersion relation. Probe measurements and Doppler broadening of ArII 4806A give excellent agreement.

Wurden, G.A.; Ono, M.; Wong, K.L.

1981-10-01T23:59:59.000Z

448

Low scale left-right symmetry and warm dark matter  

SciTech Connect

We study the scenario which incorporates dark matter in the minimal left-right symmetric theory at the TeV scale. The only viable candidate is found to be the lightest right-handed neutrino with a mass of keV. In order to satisfy the dark matter relic abundance, the relic yield is diluted by late decays of the two heavier neutrinos. We point out that the QCD phase transition temperature coincidences with the typical freeze-out temperature governed by super-weak right-handed interactions. This helps to alleviate the problem of overproduction and a careful numerical study reveals a narrow window for the mass of the right-handed gauge boson, which is within the reach of the LHC.

Nemevsek, Miha [ICTP, Strada Costiera 11, 34151 Trieste (Italy)

2013-05-23T23:59:59.000Z

449

Evaluation of low-temperature geothermal potential in north-central Box Elder County, Utah  

DOE Green Energy (OSTI)

The low-temperature geothermal resources of north-central Box Elder County, Utah were assessed. Exploration techniques used included chemical analyses of water from wells and springs, temperature surveys, and temperature-depth measurements in unused wells within the study area. The highest water temperatures (31/sup 0/, 30/sup 0/, and 29/sup 0/C) recorded in this research were located in three separate geographic regions, suggesting that no single warm water occurrence dominates the study area. Total dissolved solid (TDS) concentrations ranged from 294 to 11,590 mg/l. Areas of warm water occurrences generally had TDS values of greater than 1100 mg/l. Reservoir temperatures were estimated using chemical geothermometers. Calculated temperatures ranged between 50/sup 0/ and 100/sup 0/C. Temperature-depth measurements were logged in 16 unused wells. Thermal gradients calculated from the profiles ranged from isothermal to 267/sup 0/C/km. The background gradient for the study area appears to be slightly above the average Basin and Range gradient of 35/sup 0/C/km. The highest gradients were calculated for the area approximately eight kilometers west of Snowville, Utah, which is also an area of warm water. 61 refs., 15 figs., 6 tabs.

Davis, M.C.; Kolesar, P.T.

1984-12-01T23:59:59.000Z

450

Study of Methane Reforming in Warm Non-Equilibrium Plasma Discharges  

E-Print Network (OSTI)

Utilization of natural gas in remote locations necessitates on-site conversion of methane into liquid fuels or high value products. The first step in forming high value products is the production of ethylene and acetylene. Non-thermal plasmas, due to their unique nonequilibrium characteristics, offer advantages over traditional methods of methane reforming. Different kinds of non-thermal plasmas are being investigated for methane reforming. Parameters of these processes like flow rate, discharge size, temperature and other variables determine efficiency of conversion. An efficient process is identified by a high yield and low specific energy of production for the desired product. A study of previous work reveals that higher energy density systems are more efficient for methane conversion to higher hydrocarbons as compared to low energy density systems. Some of the best results were found to be in the regime of warm discharges. Thermal equilibrium studies indicate that higher yields of ethylene are possible with an optimal control of reaction kinetics and fast quenching. With this idea, two different glow discharge reactor systems are designed and constructed for investigation of methane reforming. A counter flow micro plasma discharge system was used to investigate the trends of methane reforming products and the control parameters were optimized to get best possible ethylene yields while minimizing its specific energy. Later a magnetic glow discharge system is used and better results are obtained. Energy costs lower than thermal equilibrium calculations were achieved with magnetic glow discharge systems for both ethylene and acetylene. Yields are obtained from measurements of product concentrations using gas chromatography and power measurements are done using oscilloscope. Energy balance and mass balances are performed for product measurement accuracy and carbon deposition calculations. Carbon deposition is minimized through control of the temperature and residence time conditions in magnetic glow discharges. Ethylene production is observed to have lower specific energies at higher powers and lower flow rates in both reactors. An ethylene selectivity of 40 percent is achieved at an energy cost of 458MJ/Kg and an input energy cost of 5 MJ/Kg of methane.

Parimi, Sreekar

2010-12-01T23:59:59.000Z

451

Chimneys: Warm and Cozy or Easy Exit for Your Heat? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? January 12, 2010 - 10:21am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy Both of my childhood homes featured fireplaces. If you've had one, you know how terrific they can be-great places to bask on cold winter nights, an easy opportunity to toast marshmallows, picturesque, undeniably a pleasure in the house that has one. However, fireplaces have chimneys...and chimneys can be problems when it comes to home energy efficiency. For one thing, many people do not take care to close their chimney flue when there is no fire. This means warm air has an easy exit from your home; you have a big hole in your roof, after all, and warm air will take advantage of that. Ditto cold air in the

452

Global warming and end-use efficiency implications of replacing CFCs  

SciTech Connect

The direct contribution of CFCs to calculated global warming has been recognized for some time. As a result of the international agreement to phase out CFCs due to stratospheric ozone and the ensuing search for suitable alternatives, there has recently been increased attention on the DIRECT global warming potential (GWP) of the fluorocarbon alternatives as greenhouse gases. However, to date there has been little focus on the INDIRECT global warming effect arising from end-use efficiency changes and associated CO{sub 2} emissions. A study being conducted at Oak Ridge National Laboratory (ORNL) addresses this combined or total global warming impact of viable options to replace CFCs in their major energy-related applications. This paper reviews selected results for air-conditioning, refrigeration, and heat pump applications. The analysis indicates that the CFC user industries have made substantial progress in approaching near-equal energy efficiency with the HCFC/HFC alternative refrigerants. The findings also bring into question the relative importance of the DIRECT (chemical-related) effect in many applications. Replacing CFCs is an important step in reducing the total global warming impact, and at present the HCFC and HFCS appear to offer the best efficiency and lowest total impact of options available in the relatively short time period required for the transition away from CFCs.

Fairchild, P.D.; Fischer, S.K.

1991-12-31T23:59:59.000Z

453

Can Advances in Science and Technology Prevent Global Warming? A Critical Review of Limitations and Challenges  

SciTech Connect

The most stringent emission scenarios published by the Intergovernmental Panel on Climate Change (IPCC) would result in the stabilization of atmospheric carbon dioxide (CO2) at concentrations of approximately 550 ppm which would produce a global temperature increase of at least 2 C by 2100. Given the large uncertainties regarding the potential risks associated with this degree of global warming, it would be more prudent to stabilize atmospheric CO2 concentrations at or below current levels which, in turn, would require a greater than 20-fold reduction (i.e., ?95%) in per capita carbon emissions in industrialized nations within the next 50 to 100 years. Using the Kaya equation as a conceptual framework, this paper examines whether CO2 mitigation approaches such as energy efficiency improvements, carbon sequestration, and the development of carbon-free energy sources would be sufficient to bring about the required reduction in per capita carbon emissions without creating unforeseen negative impacts elsewhere. In terms of energy efficiency, large improvements (?5-fold) are in principle possible given aggressive investments in R&D and if market imperfections such as corporate subsidies are removed. However, energy efficiency improvements per se will not result in a reduction in carbon emissions if, as predicted by the IPCC, the size of the global economy has expanded 12-26 fold by 2100. Terrestrial carbon sequestration via reforestation and improved agricultural soil management has many environmental advantages but has only limited CO2 mitigation potential because the global terrestrial carbon sink (ca. 200 Gt C) is small relative to the size of fossil fuel deposits (?4000 Gt C). By contrast, very large amounts of CO2 can potentially be removed from the atmosphere via sequestration in geologic formations and oceans, but carbon storage is not permanent and is likely to create many unpredictable environmental consequences. Renewable solar energy can in theory provide large amounts of carbon-free power. However, biomass and hydroelectric energy can only be marginally expanded and large-scale solar energy installations (i.e., wind, photovoltaics, and direct thermal) are likely to have significant negative environmental impacts. Expansion of nuclear energy is highly unlikely due to concerns over reactor safety, radioactive waste management, weapons proliferation, and cost. In view of the serious limitations and liabilities of many proposed CO2 mitigation approaches it appears that there remain only few no-regrets options such as drastic energy efficiency improvements, extensive terrestrial carbon sequestration, and cautious expansion of renewable energy generation. These promising CO2 mitigation technologies have the potential to bring about the required 20-fold reduction in per capita carbon emission only if population and economic growth are halted without delay. Thus, addressing the problem of global warming requires not only technological research and development but also a reexamination of core values that mistakenly equate material consumption and economic growth to happiness and well-being.

Huesemann, Michael H.

2006-07-03T23:59:59.000Z

454

The El Nino-Southern Oscillation in the second Hadley Centre coupled model and its response to greenhouse warming  

SciTech Connect

This paper describes El Nino-Southern Oscillation (ENSO) interannual variability simulated in the second Handley Centre coupled model under control and greenhouse warming scenarios. The model produces a very reasonable simulation of ENSO in the control experiment--reproducing the amplitude, spectral characteristics, and phase locking to the annual cycle that are observed in nature. The mechanism for the model ENSO is shown to be a mixed SST-ocean dynamics mode that can be interpreted in terms of the ocean recharge paradigm of Jin. In experiments with increased levels of greenhouse gases, no statistically significant changes in ENSO are seen until these levels approach four times preindustrial values. In these experiments, the model ENSO has an approximately 20% larger amplitude, a frequency that is approximately double that of the current ENSO (implying more frequent El Ninos and La Ninas), and phase locks to the annual cycle at a different time of year. It is shown that the increase in the vertical gradient of temperature in the thermocline region, associated with the model's response to increased greenhouse gases, is responsible for the increase in the amplitude of ENSO, while the increase in meridional temperature gradients on either side of the equator, again associated with the models response to increasing greenhouse gases, is responsible for the increased frequency of ENSO events.

Collins, M.

2000-04-01T23:59:59.000Z

455

CDIAC Temperature Data Sets  

NLE Websites -- All DOE Office Websites (Extended Search)

Temperature CDIAC Climate Holdings Containing Temperature Data Global Data Sets Data Set Name Investigators Data TypeFormat Period of Record NASA GISS Surface Temperature...

456

High Temperatures & Electricity Demand  

E-Print Network (OSTI)

High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

457

Final Report, Wind Power Resource Assessment on the Warm Springs Reservation Tribal Lands, Report No. DOE/GO/12103  

DOE Green Energy (OSTI)

This report concludes a five-year assessment of wind energy potential on the Confederated Tribes of Warm Springs Reservation of Oregon lands.

Jim Manion, Warm Springs Power & Water Enterprises; David McClain, McClain & Associates; HDR Engineering; Dr. Stel Walker, Oregon State University

2007-09-10T23:59:59.000Z

458

Brief communication: Global warming and coral reefs: Modelling the effect of temperature on Acropora palmata colony growth  

Science Conference Proceedings (OSTI)

Data on colony growth of the branching coral Acropora palmata from fringing reefs off Discovery Bay on the north coast of Jamaica have been obtained over the period 2002-2007 using underwater photography and image analysis by both SCUBA and remotely ... Keywords: Climate change, Coral growth, Hadley, Image analysis, ROV, SST, Submersible

M. James C. Crabbe

2007-08-01T23:59:59.000Z

459

Saving Energy and Keeping Seniors Warm This Season | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Saving Energy and Keeping Seniors Warm This Season Saving Energy and Keeping Seniors Warm This Season Saving Energy and Keeping Seniors Warm This Season January 7, 2013 - 12:44pm Addthis Seniors check out the new energy-efficient fitness facility at the Rockville Senior Center. | Photo courtesy of Chris Galm, Energy Department. Seniors check out the new energy-efficient fitness facility at the Rockville Senior Center. | Photo courtesy of Chris Galm, Energy Department. Using money from a Energy Efficiency and Conservation Block Grant, the Greater Randolph Senior Center installed a 7-kW Solar PV system to reduce energy consumption. | Photo courtesy of Bexar County, Texas. Using money from a Energy Efficiency and Conservation Block Grant, the Greater Randolph Senior Center installed a 7-kW Solar PV system to reduce

460

Get Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money Get Ready for Fall: Leaf Peeping, Staying Warm, and Saving Money September 21, 2009 - 3:04pm Addthis Allison Casey Senior Communicator, NREL Tomorrow is the official first day of fall, and while I always mourn the end of summer, one of the best things about fall is leaf peeping! Last year, we took my father-in-law's red '57 T-bird convertible on a lovely drive through the mountains to see the bright yellow aspens. Something about a car like that draws lots of attention-honks, waves, questions. We basically made friends everywhere we went. As much fun as that was, it wasn't exactly the most fuel-efficient or environmentally friendly excursion. I know we can do better this year; beautiful leaves are less than an hour's

Note: This page contains sample records for the topic "unseasonably warm temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Fuels for Schools Program Uses Leftover Wood to Warm Buildings | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fuels for Schools Program Uses Leftover Wood to Warm Buildings Fuels for Schools Program Uses Leftover Wood to Warm Buildings Fuels for Schools Program Uses Leftover Wood to Warm Buildings May 10, 2010 - 1:11pm Addthis Darby Schools received a woodchip heating system in 2003. Rick Scheele, facilities manager for the Darby schools, shows off the wood firebox | Photo Courtesy USFS Fuels for Schools, Dave Atkins Darby Schools received a woodchip heating system in 2003. Rick Scheele, facilities manager for the Darby schools, shows off the wood firebox | Photo Courtesy USFS Fuels for Schools, Dave Atkins Stephen Graff Former Writer & editor for Energy Empowers, EERE In parts of this country, wood seems like the outsider in the biomass family. New ethanol plants that grind down millions of bushels of corn in the Midwest and breakthroughs in algae along the coasts always garner the

462

Low-temperature geothermal assessment of the Jordan Valley Salt Lake County, Utah  

DOE Green Energy (OSTI)

Two known low-temperature areas (Warm Springs fault and Crystal Hot Springs) are located in the Jordan Valley, but the primary purpose of this report is to locate other low-temperature resources not previously identified. Geothermal reconnaissance techniques utilized in this study include a temperature survey and chemical analysis of wells and springs, and temperature-depth measurements in holes of opportunity. Also, further site specific gravity modelling for the Warm Springs fault geothermal area and initial modelling for the entire valley were also conducted. Areas identified as having potential low-temperature geothermal resources at depth are: (1) the north-central valley area; (2) an east-west portion of the central valley; and (3) a north-south oriented area extending from Draper to Midvale. Each of these areas exhibits ground-water temperatures 20/sup 0/C or greater. Each area has thermal wells with common ion characteristics similar to both Crystal Hot Springs and the Warm Springs fault geothermal systems. Significant concentrations of Sr, Li, B, and F are present in many of these wells.

Klauk, R.H.

1984-07-01T23:59:59.000Z

463

Energy and global warming impacts of HFC refrigerants and emerging technologies: TEWI-III  

Science Conference Proceedings (OSTI)

The use of hydrofluorocarbons (BFCs) which were developed as alternative refrigerants and insulating foam blowing agents to replace chlorofluorocarbons (CFCs) is now being affected by scientific investigations of greenhouse warming and questions about the effects of refrigerants and blowing agents on global warming. A Total Equivalent Warming Impact (TEWI) assessment analyzes the environmental affects of these halogenated working fluids in energy consuming applications by combining a direct effect resulting from the inadvertent release of HFCs to the atmosphere with an indirect effect resulting from the combustion of fossil fuels needed to provide the energy to operate equipment using these compounds as working fluids. TEWI is a more balanced measure of environmental impact because it is not based solely on the global warming potential (GWP) of the working fluid. It also shows the environmental benefit of efficient technologies that result in less CO{sub 2} generation and eventual emission to the earth`s atmosphere. The goal of TEWI is to assess total global warming impact of all the gases released to the atmosphere, including CO{sub 2} emissions from energy conversion. Alternative chemicals and technologies have been proposed as substitutes for HFCs in the vapor-compression cycle for refrigeration and air conditioning and for polymer foams in appliance and building insulations which claim substantial environmental benefits. Among these alternatives are: (1) Hydrocarbon (HC) refrigerants and blowing agents which have zero ozone depleting potential and a negligible global warming potential, (2) CO{sub 2} as a refrigerant and blowing agent, (3) Ammonia (NH{sub 3}) vapor compression systems, (4) Absorption chiller and heat pumping cycles using ammonia/water or lithium bromide/water, and (5) Evacuated panel insulations. This paper summarizes major results and conclusions of the detailed final report on the TEWI-111 study.

Sand, J.R.; Fischer, S.K.; Baxter, V.D.

1997-06-01T23:59:59.000Z

464

Global Cooling: Effect of Urban Albedo on Global Temperature  

SciTech Connect

In many urban areas, pavements and roofs constitute over 60% of urban surfaces (roof 20-25%, pavements about 40%). The roof and the pavement albedo can be increased by about 0.25 and 0.10, respectively, resulting in a net albedo increase for urban areas of about 0.1. Many studies have demonstrated building cooling-energy savings in excess of 20% upon raising roof reflectivity from an existing 10-20% to about 60%. We estimate U.S. potential savings in excess of $1 billion (B) per year in net annual energy bills. Increasing albedo of urban surfaces can reduce the summertime urban temperature and improve the urban air quality. Increasing the urban albedo has the added benefit of reflecting more of the incoming global solar radiation and countering the effect of global warming. We estimate that increasing albedo of urban areas by 0.1 results in an increase of 3 x 10{sup -4} in Earth albedo. Using a simple global model, the change in air temperature in lowest 1.8 km of the atmosphere is estimated at 0.01K. Modelers predict a warming of about 3K in the next 60 years (0.05K/year). Change of 0.1 in urban albedo will result in 0.01K global cooling, a delay of {approx}0.2 years in global warming. This 0.2 years delay in global warming is equivalent to 10 Gt reduction in CO2 emissions.

Akbari, Hashem; Menon, Surabi; Rosenfeld, Arthur

2007-05-22T23:59:59.000Z

465

BioFacts: Fueling a stronger economy, Global warming and biofuels emissions  

DOE Green Energy (OSTI)

The focus of numerous federal and state regulations being proposed and approved today is the reduction of automobile emissions -- particularly carbon dioxide (CO{sub 2}), which is the greenhouse gas considered responsible for global warming. Studies conducted by the USDOE through the National Renewable Energy Laboratory (NREL) indicate that the production and use of biofuels such as biodiesel, ethanol, and methanol could nearly eliminate the contribution of net CO{sub 2} from automobiles. This fact sheet provides and overview of global warming, followed by a summary of NREL`s study results.

NONE

1994-12-01T23:59:59.000Z

466

Static Temperature Survey At Molokai Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Molokai Area (Thomas, 1986) Molokai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At Molokai Area (Thomas, 1986) Exploration Activity Details Location Molokai Area Exploration Technique Static Temperature Survey Activity Date Usefulness useful DOE-funding Unknown Notes Due to the very small potential market on the island of Molokai for geothermal energy, only a limited effort was made to confirm a resource in the identified PGRA. An attempt was made to locate the (now abandoned) water well that was reported to have encountered warm saline fluids. The well was located but had caved in above the water table and thus no water sampling was possible. Temperature measurements in the open portion of the well were performed, but no temperatures significantly above ambient were

467

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

10, 2001 10, 2001 Price surges on Monday and Friday of last week overshadowed 3 straight days of decreases midweek, as nearly every major market location showed Friday-to-Friday gains. At the Henry Hub, the spot price gained 36 cents from the previous Friday to end the week at $2.11 per million Btu (MMBtu). On the futures market, in its first full week of trading as the near-month contract, the price of the NYMEX contract for January delivery at the Henry Hub declined $0.133 per MMBtu to settle on Friday at $2.568. The unseasonably warm temperatures that have blanketed nearly the entire country east of the Rocky Mountains continued, with specific-day high-temperature records being set at numerous locations in the Northeast, Midwest, and Midcontinent (Temperature Map)(Temperature Deviation Map). On Thursday, the spot price of West Texas Intermediate (WTI) crude oil fell nearly $1.00 per barrel, as the Organization of Petroleum Exporting Countries (OPEC) announced that it would delay an expected oil-production cut that it hopes will shore up sagging world crude oil prices. For the week (Friday-to-Friday), the WTI spot price fell $0.43 per barrel to $19.08, or $3.29 per MMBtu.

468

Mesoscale predictability of an extreme warm-season precipitation event  

E-Print Network (OSTI)

During the period of June 29 through July 6, 2002, an extreme precipitation event occurred over Texas, resulting in catastrophic flooding. Operational forecasts performed poorly, neither predicting the copious amounts of rain nor its longevity. The Penn State University/NCAR Mesoscale Model version 5 (MM5) was used to conduct predictability experiments, which follow closely to the research conducted by Zhang et al. A control simulation initialized at 00Z 1 July is established over a 30-km grid. First, practical predictability experiments are performed by exploring the impacts due to different lead-times, resolution dependence, and different physics parameterizations. Second, intrinsic predictability is investigated by inducing a random temperature perturbation in the initial conditions, followed by numerous simulations with various perturbed initializations. Similar results to those found by Zhang et al. were discovered here: the prominent initial error growth is associated with moist processes leading to convection. Eventually these errors grow from the convective scale to sub-synoptic scale, essentially below 1000 kilometers. This indicates that as the forecast time extends further beyond initialization, the resulting errors will impact forecasts of larger-scale features such as differences in the positioning and intensity of positive PV anomalies and distribution of precipitation from the control simulation.

Odins, Andrew Michael

2004-12-01T23:59:59.000Z

469

Droplet evolution in expanding flow of warm dense matter  

E-Print Network (OSTI)

We propose a simple, self-consistent kinetic model for the evolution of a mixture of droplets and vapor expanding adiabatically in vacuum after rapid, almost isochoric heating. We study the evolution of the two-phase fluid at intermediate times between the molecular and the hydrodynamic scales, focusing on out-of-equilibrium and surface effects. We use the van der Waals equation of state as a test bed to implement our model and study the phenomenology of the upcoming second neutralized drift compression experiment (NDCX-II) at Lawrence Berkeley National Laboratory (LBNL) that uses ion beams for target heating.We find an approximate expression for the temperature difference between the droplets and the expanding gas and we check it with numerical calculations. The formula provides a useful criterion to distinguish the thermalized and nonthermalized regimes of expansion. In the thermalized case, the liquid fraction grows in a proportion that we estimate analytically, whereas, in case of too rapid expansion, a s...

Armijo, Julien; 10.1103/PhysRevE.83.051507

2011-01-01T23:59:59.000Z

470

A Time-Varying Greenhouse Warming Pattern and the TropicalExtratropical Circulation Linkage in the Pacific Ocean  

Science Conference Proceedings (OSTI)

Recently, Cai and Whetton provided modeling evidence that the greenhouse warming pattern has undergone a systematic change from a pattern with maximum warming in subtropical and mid- to high latitudes to one that is El Niolike from the 1960s ...

Wenju Cai; P. H. Whetton

2001-08-01T23:59:59.000Z

471

Long-term effects of soil warming on labile carbon availability and microbial community respiration and composition  

E-Print Network (OSTI)

warmed soils from the Harvard Forest in Petersham, MA were analyzed as to the long-term effects. Soil warming has been going on in large 30x30m plots at the Harvard Forest (Petersham, MA) for the past in the Barre Woods of the Slab City Tract of the Harvard Forest, Petersham, MA. This is a mixed deciduous

Vallino, Joseph J.

472

A Preferred Scale for Warm-Core Instability in a Nonconvective Moist Basic State  

Science Conference Proceedings (OSTI)

The existence, scale, and growth rates of subsynoptic-scale warm-core circulations are investigated with a simple parameterization for latent heat release in a nonconvective basic state using a linear two-layer shallow-water model. For a range of ...

Brian H. Kahn; Douglas M. Sinton

2008-09-01T23:59:59.000Z

473

Comprehensive monitoring of CO2 sequestration in subalpine forest ecosystems and its relation to global warming  

Science Conference Proceedings (OSTI)

Global warming is an increasing concern worldwide. Assessing the contribution of CO2 to this phenomenon is an important issue. This project's goal is to improve understanding of CO2 and H2O transport in a mountainous terrain that confound current efforts ... Keywords: biogeochemistry, carbon sequestration, ecosystem, multi-modal, multi-scale, multi-tier, self organized, sensor array, trigger, wireless

Lynette Laffea; Russ Monson; Richard Han; Ryan Manning; Ashly Glasser; Steve Oncley; Jielun Sun; Sean Burns; Steve Semmer; John Militzer

2006-10-01T23:59:59.000Z

474

The Energy Balance in a Warm-Core Ring's Near-Inertial Critical Layer  

Science Conference Proceedings (OSTI)

The energy sink for near-inertial internal gravity waves encountering a vertical critical layer is examined with fine- and microstructure profiles collected in a warm-core ring. The hypothesis that the bulk of the trapped wave energy is lost to ...

Eric Kunze; Raymond W. Schmitt; John M. Toole

1995-05-01T23:59:59.000Z

475

Addressing Global Warming, Air Pollution Health Damage, and Long-Term Energy Needs Simultaneously  

E-Print Network (OSTI)

pollution simultaneously, namely wind- and solar energy for electric power, electric vehicles and diesel vehicles currently cause. 4) Studies to date suggest little reduction or an exacerbation of global estimates of the effects of cellulosic ethanol on global warming to date are premature and low. 6) Wind

Patzek, Tadeusz W.

476

Do Models and Observations Disagree on the Rainfall Response to Global Warming?  

Science Conference Proceedings (OSTI)

Recently analyzed satellite-derived global precipitation datasets from 1987 to 2006 indicate an increase in global-mean precipitation of 1.1%1.4% decade?1. This trend corresponds to a hydrological sensitivity (HS) of 7% K?1 of global warming, ...

Beate G. Liepert; Michael Previdi

2009-06-01T23:59:59.000Z

477

Research Aircraft Observations and Numerical Simulations of a Warm Front Approaching Vancouver Island  

Science Conference Proceedings (OSTI)

The mesoscale structure of the low-level flow and the character of the turbulence are investigated for a warm front as it approached the prominent terrain of the Pacific Northwest in the vicinity of Vancouver Island. Flight-level and airborne ...

James D. Doyle; Nicholas A. Bond

2001-05-01T23:59:59.000Z

478

VIRGINIA CENTER FOR COAL & ENERGY RESEARCH WINTER 1998-99 / VOL. XVIII, NO. 1 Global Warming  

E-Print Network (OSTI)

for fossil fuel­based energy then the production of carbon dioxide will also, inevitably, increaseVIRGINIA CENTER FOR COAL & ENERGY RESEARCH WINTER 1998-99 / VOL. XVIII, NO. 1 Global Warming Our the opinion. Can the VCCER with its mandated interests in coal and energy be any different? Well, we do try

479

A Climatology of the Warm Season Great Plains Low-Level Jet Using Wind Profiler Observations  

Science Conference Proceedings (OSTI)

Hourly observations from the Wind Profiler Demonstration Network during the warm season months of 1991 and 1992 were used to develop a climatology of the low-level jet (LLJ) over the Great Plains of the central United States. The maximum overall ...

Mark J. Mitchell; Raymond W. Arritt; Ken Labas

1995-09-01T23:59:59.000Z

480

Comparison of Bulk and Bin Warm-Rain Microphysics Models Using a Kinematic Framework  

Science Conference Proceedings (OSTI)

This paper discusses the development and testing of a bulk warm-rain microphysics model that is capable of addressing the impact of atmospheric aerosols on ice-free clouds. Similarly to previous two-moment bulk schemes, this model predicts the ...

Hugh Morrison; Wojciech W. Grabowski

2007-08-01T23:59:59.000Z

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481

Modeling Supersaturation and Subgrid-Scale Mixing with Two-Moment Bulk Warm Microphysics  

Science Conference Proceedings (OSTI)

This paper describes further developments of a two-moment warm rain bulk microphysics scheme suitable for addressing the indirect impact of atmospheric aerosols on ice-free clouds in large-eddy simulation (LES) models. The emphasis is on the ...

Hugh Morrison; Wojciech W. Grabowski

2008-03-01T23:59:59.000Z

482

VIRGINIA CENTER FOR COAL & ENERGY RESEARCH WINTER 1998-99 / VOL. XVIII, NO. 1 Global Warming  

E-Print Network (OSTI)

VIRGINIA CENTER FOR COAL & ENERGY RESEARCH WINTER 1998-99 / VOL. XVIII, NO. 1 Global Warming Our the opinion. Can the VCCER with its mandated interests in coal and energy be any different? Well, we do try QUARTERLY COAL PRODUCTION STATISTICS 5 GAS PRODUCTION STATISTICS 6 1840 1860 1880 1900 1920 1940 1960 1980

483

Convection over the Pacific Warm Pool in relation to the Atmospheric Kelvin-Rossby Wave  

Science Conference Proceedings (OSTI)

Deep convection over the western tropical Pacific warm pool is analyzed in terms of its relation to the atmospheric KelvinRossby wave, which dominates the large-scale flow during the austral summer. The study uses Doppler radar data collected by ...

Robert A. Houze Jr.; Shuyi S. Chen; David E. Kingsmill; Yolande Serra; Sandra E. Yuter

2000-09-01T23:59:59.000Z

484

Carbon capture and storage in geologic formations has been proposed as a global warming mitigation strategy  

E-Print Network (OSTI)

Abstract Carbon capture and storage in geologic formations has been proposed as a global warming mitigation strategy that can contribute to stabilize the atmospheric concentration of carbon dioxide to maintain adsorbed methane in the coalbed formation. But now carbon dioxide will replace the methane

Mohaghegh, Shahab

485

Timing of El NioRelated Warming and Indian Summer Monsoon Rainfall  

Science Conference Proceedings (OSTI)

The relationship between all-India summer monsoon rainfall (ISMR) and the timing of (El NioSouthern Oscillation) ENSO-related warming/cooling is investigated, using observational data during the period from 1881 to 1998. The analysis of the ...

Chie Ihara; Yochanan Kushnir; Mark A. Cane; Alexey Kaplan

2008-06-01T23:59:59.000Z

486

Increase of global monsoon area and precipitation under global warming: A robust signal?  

E-Print Network (OSTI)

Increase of global monsoon area and precipitation under global warming: A robust signal? Pang 2012; revised 18 February 2012; accepted 20 February 2012; published 16 March 2012. [1] Monsoons of people around the world. The global monsoon precipitation had an increasing trend over the past three

Li, Tim

487

Impact of Verification Grid-Box Size on Warm-Season QPF Skill Measures  

Science Conference Proceedings (OSTI)

A 10-km-grid-spacing version of NCEP's Eta Model was used to simulate 11 warm-season convective systems occurring over the U.S. upper midwest. Quantitative precipitation forecasts (QPFs) from the model valid for 6-h periods were verified using 4-...

William A. Gallus Jr.

2002-12-01T23:59:59.000Z

488

A Model Study on the 198889 Warming Event in the Northern North Pacific  

Science Conference Proceedings (OSTI)

Using outputs of a high-resolution ocean general circulation model, upper-ocean heat content budget and mixed layer heat budget are analyzed to investigate the reason for the 198889 decadal warming event in the northern North Pacific. The model ...

Jing-Jia Luo; Toshio Yamagata

2003-08-01T23:59:59.000Z

489

The Final Warming Date of the Antarctic Polar Vortex and Influences on its Interannual Variability  

Science Conference Proceedings (OSTI)

More than 40 years of radiosonde data from two Antarctic stations are examined for changes in the date of the final stratospheric warming that occurs each year as the vortex breaks up in spring/summer. A new measure of this date is derived that ...

Joanna D. Haigh; Howard K. Roscoe

2009-11-01T23:59:59.000Z

490

Warming of the Upper Equatorial Indian Ocean and Changes in the Heat Budget (196099)  

Science Conference Proceedings (OSTI)

In the equatorial Indian Ocean, sea surface has warmed by 0.51C over the 196099 period, while waters have cooled at thermocline depth and the net atmospheric heat flux has decreased. Among a set of twentieth-century climate simulations from ...

Gal Alory; Gary Meyers

2009-01-01T23:59:59.000Z

491

Ice Initiation by Collision-Freezing in Warm-Based Cumuli  

Science Conference Proceedings (OSTI)

The mechanical shock of collision between supercooled water drops is explored as a mechanism for the origin of ice in the warm-based cumuli of the central United States. The results of laboratory experiments, using groups of 3-mm diameter ...

Roobert R. Czys

1989-10-01T23:59:59.000Z

492

Storms and Lightning Activity in Greece during the Warm Periods of 200306  

Science Conference Proceedings (OSTI)

Lightning activity over Greece during the warm season (MaySeptember) of the years 200306 is investigated in relation to the synoptic meteorological conditions that prevailed in the region. The study is based on the use of cloud-to-ground ...

N. Mazarakis; V. Kotroni; K. Lagouvardos; A. A. Argiriou

2008-12-01T23:59:59.000Z

493

Genesis of PreHurricane Felix (2007). Part II: Warm Core Formation, Precipitation Evolution, and Predictability  

Science Conference Proceedings (OSTI)

This is the second of a two-part study examining the simulated formation of Atlantic Hurricane Felix (2007) in a cloud-representing framework. Here several open issues are addressed concerning the formation of the storms warm core, the evolution ...

Zhuo Wang; M. T. Montgomery; T. J. Dunkerton

2010-06-01T23:59:59.000Z

494

Estimating the Diapycnal Transport Contribution to Warm Water Volume Variations in the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

Variations in the warm water volume (WWV) of the equatorial Pacific Ocean are considered a key element of the dynamics of the El NioSouthern Oscillation (ENSO) phenomenon. WWV, a proxy for the upper-ocean heat content, is usually defined as the ...

Jaclyn N. Brown; Alexey V. Fedorov

2010-01-01T23:59:59.000Z

495

Interaction of a Warm Ring with the Western Slope in the Gulf of Mexico  

Science Conference Proceedings (OSTI)

Between November 1985 and May 1986, a warm ring encountered the western slope in the Gulf of Mexico, moved away from the slope, and began to dissipate. Before encountering the slope, the ring was quasi-circular. After encountering the slope, it ...

Fred M. Vukovich; Evans Waddell

1991-07-01T23:59:59.000Z

496

Temperature, Humidity, and Pressure Response of Radiosondes at Low Temperatures  

Science Conference Proceedings (OSTI)

The response of radiosondes to an instantaneous change of environment was studied by taking the instruments from a warm building into the cold environment at South Pole Station. After being initialized inside, the radiosondes were carried outside ...

Stephen R. Hudson; Michael S. Town; Von P. Walden; Stephen G. Warren

2004-05-01T23:59:59.000Z

497

Fossil fuel decarbonization technology for mitigating global warming  

SciTech Connect

It has been understood that production of hydrogen from fossil and carbonaceous fuels with reduced CO{sub 2} emission to the atmosphere is key to the production of hydrogen-rich fuels for mitigating the CO{sub 2} greenhouse gas climate change problem. The conventional methods of hydrogen production from fossil fuels (coal, oil, gas and biomass) include steam reforming and water gas shift mainly of natural gas (SRM). In order to suppress CO{sub 2} emission from the steam reforming process, CO{sub 2} must be concentrated and sequestered either in or under the ocean or underground (in aquifers, or depleted oil or gas wells). Up to about 40% of the energy is lost in this process. An alternative process is the pyrolysis or the thermal decomposition of methane, natural gas (TDM) to hydrogen and carbon. The carbon can either be sequestered or sold on the market as a materials commodity or used as a fuel at a later date under less severe CO{sub 2} restraints. The energy sequestered in the carbon amounts to about 42% of the energy in the natural gas resource which is stored and not destroyed. A comparison is made between the well developed conventional SRM and the less developed TDM process including technological status, efficiency, carbon management and cost. The TDM process appears to have advantages over the well developed SRM process. It is much easier to sequester carbon as a stable solid than CO{sub 2} as a reactive gas or low temperature liquid. It is also possible to reduce cost by marketing the carbon as a filler or construction material. The potential benefits of the TDM process justifies its further efficient development. The hydrogen can be used as a transportation fuel or converted to methanol by reaction with CO{sub 2} from fossil fuel fired power plant stack gases, thus allowing reuse of the carbon in conventional IC automobile engines or in advanced fuel cell vehicles.

Steinberg, M.

1998-09-01T23:59:59.000Z

498

Total environmental warming impact (TEWI) calculations for alternative automative air-conditioning systems  

SciTech Connect

The Montreal Protocol phase-out of chlorofluorocarbons (CFCs) has required manufacturers to develop refrigeration and air-conditioning systems that use refrigerants that can not damage stratospheric ozone. Most refrigeration industries have adapted their designs to use hydrochlorofluorocarbon (HCFC) or hydrofluorocarbon (HFC) refrigerants; new automobile air- conditioning systems use HFC-134a. These industries are now being affected by scientific investigations of greenhouse warming and questions about the effects of refrigerants on global warming. Automobile air-conditioning has three separate impacts on global warming; (1) the effects of refrigerant inadvertently released to the atmosphere from accidents, servicing, and leakage; (2) the efficiency of the cooling equipment (due to the emission of C0{sub 2} from burning fuel to power the system); and (3) the emission of C0{sub 2} from burning fuel to transport the system. The Total Equivalent Warming Impact (TEWI) is an index that should be used to compare the global warming effects of alternative air-conditioning systems because it includes these contributions from the refrigerant, cooling efficiency, and weight. This paper compares the TEWI of current air-conditioning systems using HFC-134a with that of transcritical vapor compression system using carbon dioxide and systems using flammable refrigerants with secondary heat transfer loops. Results are found to depend on both climate and projected efficiency of C0{sub 2}systems. Performance data on manufacturing prototype systems are needed to verify the potential reductions in TEWI. Extensive field testing is also required to determine the performance, reliability, and ``serviceability`` of each alternative to HFC-134a to establish whether the potential reduction of TEWI can be achieved in a viable consumer product.

Sand, J.R.; Fischer, S.K.

1997-01-01T23:59:59.000Z

499

Response of precipitation extremes to idealized global warming in an aqua-planet climate model: Towards robust projection across different horizontal resolutions  

Science Conference Proceedings (OSTI)

Current climate models produce quite heterogeneous projections for the responses of precipitation extremes to future climate change. To help understand the range of projections from multimodel ensembles, a series of idealized 'aquaplanet' Atmospheric General Circulation Model (AGCM) runs have been performed with the Community Atmosphere Model CAM3. These runs have been analysed to identify the effects of horizontal resolution on precipitation extreme projections under two simple global warming scenarios. We adopt the aquaplanet framework for our simulations to remove any sensitivity to the spatial resolution of external inputs and to focus on the roles of model physics and dynamics. Results show that a uniform increase of sea surface temperature (SST) and an increase of low-to-high latitude SST gradient both lead to increase of precipitation and precipitation extremes for most latitudes. The perturbed SSTs generally have stronger impacts on precipitation extremes than on mean precipitation. Horizontal model resolution strongly affects the global warming signals in the extreme precipitation in tropical and subtropical regions but not in high latitude regions. This study illustrates that the effects of horizontal resolution have to be taken into account to develop more robust projections of precipitation extremes.

Li, F.; Collins, W.D.; Wehner, M.F.; Williamson, D.L.; Olson, J.G.

2011-04-15T23:59:59.000Z

500

Origins and Levels of Monthly and Seasonal Forecast Skill for United States Surface Air Temperatures Determined by Canonical Correlation Analysis  

Science Conference Proceedings (OSTI)

Statistical techniques have been used to study the ability of SLP, SST and a form of persistence to forecast cold/warm season air temperatures over the United States and to determine the spacetime evolution of these fields that give rise to ...

T. P. Barnett; R. Preisendorfer

1987-09-01T23:59:59.000Z