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Note: This page contains sample records for the topic "tropical atmosphere ocean" from the National Library of EnergyBeta (NLEBeta).
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1

ARM - Field Campaign - Tropical Ocean Global Atmosphere Coupled  

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

govCampaignsTropical Ocean Global Atmosphere Coupled Ocean-Atmosphere govCampaignsTropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response Exp Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Tropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response Exp 1992.07.11 - 1993.02.28 Lead Scientist : Chuck Long Data Availability Final data available. For data sets, see below. Summary IOP completed. Description The Tropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response Experiment (TOGA-COARE) was conducted to better understand the structure of the coupled system of the warm pool of the western Pacific Ocean. Hundreds of participants from dozens of countries took part in this experiment from November 1, 1992 through February 28, 1993. Campaign Data Sets

2

Impacts of Ocean–Atmosphere Coupling on Tropical Cyclone Intensity Change and Ocean Prediction in the Australian Region  

Science Journals Connector (OSTI)

This study investigates the impact of atmosphere–ocean coupling on predicted tropical cyclone (TC) intensity change and the ocean response in the Australian region. The coupled model comprises the Australian Bureau of Meteorology’s Tropical ...

P. A. Sandery; G. B. Brassington; A. Craig; T. Pugh

2010-06-01T23:59:59.000Z

3

Tropical atmosphere - Ocean interactions in a conceptual framework  

E-Print Network (OSTI)

Statistical analysis of observations (including atmospheric reanalysis and forced ocean model simulations) is used to address two questions: First, does an analogous mechanism to that of El Nińo–Southern Oscillation (ENSO) ...

Jansen, Malte Friedrich

4

Internal variability of the tropical Pacific ocean Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA  

E-Print Network (OSTI)

Internal variability of the tropical Pacific ocean M. Jochum Earth, Atmospheric and Planetary model of the tropical Pacific ocean is analyzed to quantify the interannual variability caused by internal variability of ocean dynamics. It is found that along the Pacific cold tongue internal variability

Jochum, Markus

5

A Hybrid Atmosphere-Ocean Coupling Approach on the Simulation of Tropical Asian-Pacific Climate  

E-Print Network (OSTI)

A Hybrid Atmosphere-Ocean Coupling Approach on the Simulation of Tropical Asian-Pacific Climate at Manoa, 1680 East West Road, POST Bldg. 4th Floor, Honolulu, HI 96822 #12;ABSTRACT A unique Hybrid spring (in late fall). The encouraging results from this hybrid coupled model indicate

Fu, Joshua Xiouhua

6

Forecasting a large number of tropical cyclone intensities around Japan using a high-resolution atmosphere-ocean coupled model  

Science Journals Connector (OSTI)

This work quantifies the benefits of using a high-resolution atmosphere-ocean coupled model in the tropical cyclone (TC) intensity forecasts in the vicinity of Japan. To do so, a large number of high-resolution calculations were performed by ...

Kosuke Ito; Tohru Kuroda; Kazuo Saito; Akiyoshi Wada

7

The tropical cyclone-induced flux of carbon between the ocean and the atmosphere  

E-Print Network (OSTI)

Tropical cyclones are known to cause phytoplankton blooms in regions of the ocean that would otherwise support very little life; it is also known that these storms entrain carbon-rich deep water, which can cause ...

Zimmerman, Neil L

2012-01-01T23:59:59.000Z

8

A Regional OceanAtmosphere Model for Eastern Pacific Climate: Toward Reducing Tropical Biases*  

E-Print Network (OSTI)

.5°) of the ROAM enables it to capture mesoscale features, such as tropical instability waves, Central American gap these asymmetric features despite a solar radia- tion forcing at the top of the atmosphere that is zonally uniform

Wang, Yuqing

9

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region.  

E-Print Network (OSTI)

??The Indonesian archipelago links the tropical Indian and western Pacific Oceans, so transmission of oceanic and atmospheric energy across the archipelago has the potential to… (more)

Drushka, Kyla

2011-01-01T23:59:59.000Z

10

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

Pacific Oceans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .currents in the tropical Pacific Ocean. J. Phys. Oceanogr. ,in the eastern tropical Pacific Ocean associated with the

Drushka, Kyla

2011-01-01T23:59:59.000Z

11

Roles of Indian and Pacific Ocean air–sea coupling in tropical atmospheric variability  

Science Journals Connector (OSTI)

Sea surface temperature (SST) variations include negative feedbacks from the atmosphere, whereas SST anomalies are specified in stand-alone atmospheric general circulation simulations. Is the SST forced response ...

Renguang Wu; Ben P. Kirtman

2005-08-01T23:59:59.000Z

12

Shipboard Measurements and Estimations of AirSea Fluxes in the Western Tropical Pacific Ocean  

E-Print Network (OSTI)

Ship­board Measurements and Estimations of Air­Sea Fluxes in the Western Tropical Pacific Ocean E dur­ ing the Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean and Atmospheric Response of the surface­layer turbulence properties are compared with those from previous land and ocean results. Momentum

California at Irvine, University of

13

On the connection between continental-scale land surface processes and the tropical climate in a coupled ocean-atmosphere-land system  

SciTech Connect

The impact of global tropical climate to perturbations in land surface processes (LSP) are evaluated using perturbations given by different LSP representations of continental-scale in a global climate model that includes atmosphere-ocean interactions. One representation is a simple land scheme, which specifies climatological albedos and soil moisture availability. The other representation is the more comprehensive Simplified Simple Biosphere Model, which allows for interactive soil moisture and vegetation biophysical processes. The results demonstrate that LSP processes such as interactive soil moisture and vegetation biophysical processes have strong impacts on the seasonal mean states and seasonal cycles of global precipitation, clouds, and surface air temperature. The impact is especially significant over the tropical Pacific. To explore the mechanisms for such impact, different LSP representations are confined to selected continental-scale regions where strong interactions of climate-vegetation biophysical processes are present. We find that the largest impact is mainly from LSP perturbations over the tropical African continent. The impact is through anomalous convective heating in tropical Africa due to changes in the surface heat fluxes, which in turn affect basinwide teleconnections in the Pacific through equatorial wave dynamics. The modifications in the equatorial Pacific climate are further enhanced by strong air-sea coupling between surface wind stress and upwelling, as well as effect of ocean memory. Our results further suggest that correct representations of land surface processes, land use change and the associated changes in the deep convection over tropical Africa are crucial to reducing the uncertainty when performing future climate projections under different climate change scenarios.

Ma, Hsi-Yen; Mechoso, C. R.; Xue, Yongkang; Xiao, Heng; Neelin, David; Ji, Xuan

2013-11-15T23:59:59.000Z

14

Ocean Barrier Layers’ Effect on Tropical Cyclone Intensification  

SciTech Connect

Improving a tropical cyclone's forecast and mitigating its destructive potential requires knowledge of various environmental factors that influence the cyclone's path and intensity. Herein, using a combination of observations and model simulations, we systematically demonstrate that tropical cyclone intensification is significantly affected by salinity-induced barrier layers, which are 'quasi-permanent' features in the upper tropical oceans. When tropical cyclones pass over regions with barrier layers, the increased stratification and stability within the layer reduce storm-induced vertical mixing and sea surface temperature cooling. This causes an increase in enthalpy flux from the ocean to the atmosphere and, consequently, an intensification of tropical cyclones. On average, the tropical cyclone intensification rate is nearly 50% higher over regions with barrier layers, compared to regions without. Our finding, which underscores the importance of observing not only the upper-ocean thermal structure but also the salinity structure in deep tropical barrier layer regions, may be a key to more skillful predictions of tropical cyclone intensities through improved ocean state estimates and simulations of barrier layer processes. As the hydrological cycle responds to global warming, any associated changes in the barrier layer distribution must be considered in projecting future tropical cyclone activity.

Balaguru, Karthik; Chang, P.; Saravanan, R.; Leung, Lai-Yung R.; Xu, Zhao; Li, M.; Hsieh, J.

2012-09-04T23:59:59.000Z

15

Correlative Evolutions of ENSO and the Seasonal Cycle in the Tropical Pacific Ocean  

Science Journals Connector (OSTI)

This study examines whether shifts between the correlative evolutions of ENSO and the seasonal cycle in the tropical Pacific Ocean can produce effects that are large enough to alter the evolution of the coupled atmosphere–ocean system. The ...

Heng Xiao; Carlos R. Mechoso

2009-04-01T23:59:59.000Z

16

Intermediate Zonal Jets in the Tropical Pacific Ocean Observed by Argo Floats* SOPHIE CRAVATTE  

E-Print Network (OSTI)

Intermediate Zonal Jets in the Tropical Pacific Ocean Observed by Argo Floats* SOPHIE CRAVATTE´veloppement, LEGOS, Toulouse, France WILLIAM S. KESSLER National Oceanic and Atmospheric Administration/Pacific Argo float data in the tropical Pacific Ocean during January 2003­August 2011 are analyzed to obtain

Boyer, Edmond

17

Sensitivity of global warming to the pattern of tropical ocean warming  

Science Journals Connector (OSTI)

The current generation of climate models that couple atmospheric and oceanic general circulation models predict substantially different patterns of sea surface temperatures (SSTs) in the Tropics when run in an...

Joseph J. Barsugli; Sang-Ik Shin; Prashant D. Sardeshmukh

2006-10-01T23:59:59.000Z

18

Annual Adjustment of the Thermocline in the Tropical Pacific Ocean  

Science Journals Connector (OSTI)

In this paper the amplitude-phase characteristics of the annual adjustment of the thermocline in the entire tropical Pacific Ocean are described and numerical experiments with a tropical ocean model are performed to assess the roles of the major ...

Bin Wang; Renguang Wu; Roger Lukas

2000-02-01T23:59:59.000Z

19

Interannual ENSO variability forced through coupled atmosphere-ocean feedback loops  

E-Print Network (OSTI)

, 2000; Power and Colman, 2006]. In this paper, we explore the extent to which baroclinic ocean Rossby1 Interannual ENSO variability forced through coupled atmosphere-ocean feedback loops Amy Solomon 1 feedback to, and significantly impact, the Tropics through ocean Rossby waves. We use an atmospheric

Solomon, Amy

20

Mesoscale Coupled Ocean-Atmosphere Interaction  

E-Print Network (OSTI)

heat flux, and wind power input to the ocean. Geophys. Res.Powers and Stoelinga (2000). They developed a comprehensive atmosphere-ocean-

Seo, Hyodae

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Mesoscale coupled ocean-atmosphere interaction  

E-Print Network (OSTI)

heat flux, and wind power input to the ocean. Geophys. Res.Powers and Stoelinga (2000). They developed a comprehensive atmosphere-ocean-

Seo, Hyodae

2007-01-01T23:59:59.000Z

22

Physical Characterization of Tropical Oceanic Convection Observed in KWAJEX  

Science Journals Connector (OSTI)

The Tropical Rainfall Measuring Mission (TRMM) Kwajalein Experiment (KWAJEX) was designed to obtain an empirical physical characterization of precipitating convective clouds over the tropical ocean. Coordinated datasets were collected by three ...

Sandra E. Yuter; Robert A. Houze Jr.; Eric A. Smith; Thomas T. Wilheit; Edward Zipser

2005-04-01T23:59:59.000Z

23

Ocean noise in the tropical and subtropical Pacific Ocean  

Science Journals Connector (OSTI)

Ocean ambient noise is well studied in the North Pacific and North Atlantic but is poorly described for most of the worlds' oceans. Calibrated passive acoustic recordings were collected during 2009–2010 at seven locations in the central and western tropical and subtropical Pacific. Monthly and hourly mean power spectra (15–1000?Hz) were calculated in addition to their skewness kurtosis and percentile distributions. Overall ambient noise at these seven sites was 10–20?dB lower than reported recently for most other locations in the North Pacific. At frequencies 200?Hz with higher levels recorded in the winter than in the summer. Several species of baleen whales humpback (Megaptera novaeangliae) blue (Balaenoptera musculus) and fin (B. physalus) whales also contributed seasonally to ambient noise in characteristic frequency bands.

Ana Širovi?; Sean M. Wiggins; Erin M. Oleson

2013-01-01T23:59:59.000Z

24

Evaluation of OSCAR ocean surface current product in the tropical Indian Ocean using in situ data  

Science Journals Connector (OSTI)

The OSCAR (ocean surface current analysis real-time), which is a ... , has been evaluated in the tropical Indian Ocean (TIO) in two different ways. First ... capture the variabilities of the well-known surface current

RAJESH SIKHAKOLLI; RASHMI SHARMA; SUJIT BASU; B S GOHIL…

2013-02-01T23:59:59.000Z

25

Introducing Research College of Oceanic & Atmospheric Sciences  

E-Print Network (OSTI)

.coas.oregonstate.edu WECOMA WECOMA Coll ege of Oceanic & Atmospheric Scie nces OREGON STATE UNIVERSITY in the O cean currents, to the south in summer and generally to the north in winter, create ocean currents. The strong summertime and the topography of the ocean floor influence the east-west cross-shelf currents. Understanding and being able

Pierce, Stephen

26

Introducing Research College of Oceanic & Atmospheric Sciences  

E-Print Network (OSTI)

WECOMA Coll ege of Oceanic & Atmospheric Scie nces OREGON STATE UNIVERSITY in the O cean currents introduced by man (e.g., pollutants). Knowledge of upper-ocean currents is important for navigation and for search and rescue. The ocean currents off Oregon vary seasonally and can also vary from year to year

Barth, Jack

27

Tropical Pacific nutrient dynamics in the modern and pleistocene ocean : insights from the nitrogen isotope system  

E-Print Network (OSTI)

eastern equatorial Pacific Ocean during the past 3 M.Y. ,in the western tropical Pacific Ocean in the Holocene epoch,eastern tropical North Pacific Ocean, Mar. Chem. , 3, 271–

Rafter, Patrick Anthony

2009-01-01T23:59:59.000Z

28

Biological sources and sinks of methane in tropical habitats and tropical atmospheric chemistry. Doctoral thesis  

SciTech Connect

The contents of this study include: two methods for measuring methane emission from a tropical lake; methane emission by bubbling from Gatun Lake, Panama; methane emission from wetlands in central Panama; consumption of atmospheric methane in soils of central Panama: effects of agricultural development; a seasonal study of soil-atmosphere methane, carbon dioxide, and 222Rn flux in a tropical moist forest; and the effects of tropical deforestation on global and regional atmospheric chemistry.

Keller, M.M.

1990-01-01T23:59:59.000Z

29

Long Wave Resonance in Tropical Oceans and Implications on Climate: the Atlantic Ocean  

Science Journals Connector (OSTI)

A wavelet analysis is preferred to a complex EOF analysis to investigate the resonance of long waves in the tropical ocean. If the two methods are similar for ... typical frequency domain analyses, i.e. the power

Jean-Louis Pinault

2013-11-01T23:59:59.000Z

30

The impact of oceanic heat transport on the atmospheric circulation  

E-Print Network (OSTI)

A general circulation model of intermediate complexity with an idealized earthlike aquaplanet setup is used to study the impact of changes in the oceanic heat transport on the global atmospheric circulation. Focus is put on the Lorenz energy cycle and the atmospheric mean meridional circulation. The latter is analysed by means of the Kuo-Eliassen equation. The atmospheric heat transport compensates the imposed oceanic heat transport changes to a large extent in conjunction with significant modification of the general circulation. Up to a maximum about 3PW, an increase of the oceanic heat transport leads to an increase of the global mean near surface temperature and a decrease of its equator-to-pole gradient. For larger transports, the gradient is reduced further but the global mean remains approximately constant. This is linked to a cooling and a reversal of the temperature gradient in the tropics. A larger oceanic heat transport leads to a reduction of all reservoirs and conversions of the Lorenz energy cycl...

Knietzsch, Marc-Andre; Lunkeit, Frank

2014-01-01T23:59:59.000Z

31

Developing El Nińo The National Oceanic and Atmospheric Administratio...  

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

(NOAA) recently announced the development of El Nio conditions in the tropical Pacific Ocean near the South American coastline. Scientists detected a 4F increase in...

32

An optimizing reduced order FDS for the tropical Pacific Ocean reduced gravity model  

E-Print Network (OSTI)

An optimizing reduced order FDS for the tropical Pacific Ocean reduced gravity model Zhendong Luoa) for the tropical Pacific Ocean reduced gravity model. Ensembles of data are compiled from transient solutions computed from the discrete equation system derived by FDS for the tropical Pacific Ocean reduced gravity

Aluffi, Paolo

33

Eddy mean flow decomposition and eddy diffusivity estimates in the tropical Pacific Ocean  

E-Print Network (OSTI)

Eddy mean flow decomposition and eddy diffusivity estimates in the tropical Pacific Ocean: 2] Eddy diffusivity of the surface velocity field in the tropical Pacific Ocean was estimated using diffusivity estimates in the tropical Pacific Ocean: 2. Results, J. Geophys. Res., 107(C10), 3154, doi:10

34

Predicting Coupled Ocean-Atmosphere Modes with a Climate Modeling Hierarchy -- Final Report  

SciTech Connect

The goal of the project was to determine midlatitude climate predictability associated with tropical-extratropical interactions on interannual-to-interdecadal time scales. Our strategy was to develop and test a hierarchy of climate models, bringing together large GCM-based climate models with simple fluid-dynamical coupled ocean-ice-atmosphere models, through the use of advanced probabilistic network (PN) models. PN models were used to develop a new diagnostic methodology for analyzing coupled ocean-atmosphere interactions in large climate simulations made with the NCAR Parallel Climate Model (PCM), and to make these tools user-friendly and available to other researchers. We focused on interactions between the tropics and extratropics through atmospheric teleconnections (the Hadley cell, Rossby waves and nonlinear circulation regimes) over both the North Atlantic and North Pacific, and the ocean’s thermohaline circulation (THC) in the Atlantic. We tested the hypothesis that variations in the strength of the THC alter sea surface temperatures in the tropical Atlantic, and that the latter influence the atmosphere in high latitudes through an atmospheric teleconnection, feeding back onto the THC. The PN model framework was used to mediate between the understanding gained with simplified primitive equations models and multi-century simulations made with the PCM. The project team is interdisciplinary and built on an existing synergy between atmospheric and ocean scientists at UCLA, computer scientists at UCI, and climate researchers at the IRI.

Michael Ghil, UCLA; Andrew W. Robertson, IRI, Columbia Univ.; Sergey Kravtsov, U. of Wisconsin, Milwaukee; Padhraic Smyth, UC Irvine

2006-08-04T23:59:59.000Z

35

VOCALS: The VAMOS Ocean-Cloud-Atmosphere-Land Study  

DOE Data Explorer (OSTI)

VOCALS (VAMOS* Ocean-Cloud-Atmosphere-Land Study) is an international CLIVAR program the major goal of which is to develop and promote scientific activities leading to improved understanding of the Southeast Pacific (SEP) coupled ocean-atmosphere-land system on diurnal to inter-annual timescales. The principal program objectives are: 1) the improved understanding and regional/global model representation of aerosol indirect effects over the SEP; 2) the elimination of systematic errors in the region of coupled atmospheric-ocean general circulation models, and improved model simulations and predictions of the coupled climate in the SEP and global impacts of the system variability. VOCALS is organized into two tightly coordinated components: 1) a Regional Experiment (VOCALSREx), and 2) a Modeling Program (VOCALS-Mod). Extended observations (e.g. IMET buoy, satellites, EPIC/PACS cruises) will provide important additional contextual datasets that help to link the field and the modeling components. The coordination through VOCALS of observational and modeling efforts (Fig. 3) will accelerate the rate at which field data can be used to improve simulations and predictions of the tropical climate variability [Copied from the Vocals Program Summary of June 2007, available as a link from the VOCALS web at http://www.eol.ucar.edu/projects/vocals/]. The CLIVAR sponsored program to under which VOCALS falls is VAMOS, which stands for Variability of the American Monsoon Systems.

Wood, Robert (VOCALS-REx PI, University of Washington); Bretherton, Christopher (GEWEX/GCSS Representative, University of Washington); Huebert, Barry (SOLAS Representative, University of Hawaii); Mechoso, Roberto C. (VOCALS Science Working Group Chair, UCLA); Weller, Robert (Woods Hole Oceanographic Institution)

36

How ocean color can steer Pacific tropical cyclones  

E-Print Network (OSTI)

Because ocean color alters the absorption of sunlight, it can produce changes in sea surface temperatures with further impacts on atmospheric circulation. These changes can project onto fields previously recognized to alter ...

Gnanadesikan, Anand

37

On the role of wind driven ocean dynamics in tropical Atlantic variability  

E-Print Network (OSTI)

The response of the tropical Atlantic Ocean to wind stress forcing on seasonal and interannual time scales is examined using an ocean data assimilation product from the Geophysical Fluid Dynamics Laboratory (GFDL), and an ocean general circulation...

Da Silva, Meyre Pereira

2006-08-16T23:59:59.000Z

38

Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean  

E-Print Network (OSTI)

Experiment (WOCE), vol. 2, Pacific Ocean DRAFT, edited by M.over the equatorial Pacific Ocean during SAGA 3, J. Geophys.the troposphere over the Pacific Ocean during PEM- Tropics A

Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

2007-01-01T23:59:59.000Z

39

Forcing of the Indian Ocean Dipole on the Interannual Variations of the Tropical Pacific Ocean: Roles of the Indonesian Throughflow  

Science Journals Connector (OSTI)

Controlled numerical experiments using ocean-only and ocean–atmosphere coupled general circulation models show that interannual sea level depression in the eastern Indian Ocean during the Indian Ocean dipole (IOD) events forces enhanced Indonesian ...

Dongliang Yuan; Jing Wang; Tengfei Xu; Peng Xu; Zhou Hui; Xia Zhao; Yihua Luan; Weipeng Zheng; Yongqiang Yu

2011-07-01T23:59:59.000Z

40

METEOROLOGICAL Journal of Atmospheric and Oceanic Technology  

E-Print Network (OSTI)

that there is no10 isotopic fractionation between the liquid phase and the generated moist "air". The water11., A microdrop generator for the calibration of.... 1. Introduction1 2 Water vapor is a key element in the globalAMERICAN METEOROLOGICAL SOCIETY Journal of Atmospheric and Oceanic Technology EARLY ONLINE RELEASE

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Doctoral Programs Atmospheric, Oceanic & Space Sciences  

E-Print Network (OSTI)

Professor; Recipient, Teaching Innovation Prize; Michigan Distinguished Professor of the Year Allison Mission to Comet 67P / Churyumov- Gerasimenko · Solar and Heliospheric Physics Group · STEREO Mission,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences University of Michigan Space Research Building 2455 Hayward Street Ann

Eustice, Ryan

42

MEMORANDUM OF UNDERSTANDING THE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION OF  

E-Print Network (OSTI)

national economies; Recognizing that significant interrelated, atmospheric, oceanic and terrestrial global, terrestrial and atmospheric ecosystem studies should focus on the structure and processes of the environment

43

College of Earth, Ocean, and Atmospheric Sciences Oregon State University  

E-Print Network (OSTI)

College of Earth, Ocean, and Atmospheric Sciences Oregon State University 104 CEOAS Admin Bldg Announcement College of Earth, Ocean, and Atmospheric Sciences Posting 0012926 ASSISTANT PROFESSOR, Earth Systems History The College of Earth, Ocean, and Atmospheric Sciences (CEOAS) at Oregon State University

44

Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal Decomposition  

E-Print Network (OSTI)

Reduced Order Modeling of the Upper Tropical Pacific Ocean Model Using Proper Orthogonal of a large-scale upper ocean circulation in the tropic Pacific domain. We construct different POD models-scale seasonal variability of the tropic Pacific obtained by the original model is well captured by a low

Aluffi, Paolo

45

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.

46

Science DMZ National Oceanic and Atmospheric Administration  

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

NOAA NOAA About ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA Science DMZ NERSC Science DMZ ALS Multi-facility Workflow LCLS ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Science DMZ National Oceanic and Atmospheric Administration The National Oceanic and Atmospheric Administration (NOAA) in Boulder houses the Earth System Research Lab, which supports a "reforecasting" project. The initiative involves running several decades of historical

47

Vertical flux, ecology and dissolution of radiolaria in tropical oceans : implications for the silica cycle  

E-Print Network (OSTI)

Radiolarians which settle through the oceanic water column were recovered from three stations (western Tropical Atlantic-Station E, central Tropical Pacific-P1 and Panama Basin-PB) using PARFLUX sediment traps in moored ...

Takahashi, Kozo

1982-01-01T23:59:59.000Z

48

The tropical precipitation response to Andes topography and ocean heat fluxes in an aquaplanet model  

Science Journals Connector (OSTI)

This aquaplanet modeling study using AM2.1 examines how ocean energy transport and topography influence the location of tropical precipitation. Adding realistic Andes topography regionally displaces tropical rainfall from the equator into the ...

Elizabeth A. Maroon; Dargan M. W. Frierson; David S. Battisti

49

Deep Signatures of Southern Tropical Indian Ocean Annual Rossby Waves* GREGORY C. JOHNSON  

E-Print Network (OSTI)

Deep Signatures of Southern Tropical Indian Ocean Annual Rossby Waves* GREGORY C. JOHNSON NOAA Environmental Laboratory Contribution Number 3671. Corresponding author address: Gregory C. Johnson, NOAA

Johnson, Gregory C.

50

Tropical Pacific nutrient dynamics in the modern and Pleistocene ocean| Insights from the nitrogen isotope system.  

E-Print Network (OSTI)

?? The tropical Pacific is a region where nutrient delivery, upper ocean dynamics, and global climate variability are tightly coupled. For example, the depth of… (more)

Rafter, Patrick Anthony

2009-01-01T23:59:59.000Z

51

Tropical Pacific nutrient dynamics in the modern and pleistocene ocean : insights from the nitrogen isotope system.  

E-Print Network (OSTI)

??The tropical Pacific is a region where nutrient delivery, upper ocean dynamics, and global climate variability are tightly coupled. For example, the depth of the… (more)

Rafter, Patrick Anthony

2009-01-01T23:59:59.000Z

52

Detection of Rainfall Events Using Underwater Passive Aquatic Sensors and Air–Sea Temperature Changes in the Tropical Pacific Ocean  

Science Journals Connector (OSTI)

Several years of long-term high temporal resolution ocean ambient noise data from the tropical Pacific Ocean are analyzed to detect oceanic rainfall. Ocean ambient noise generated by rainfall and wind are identified through an acoustic ...

Barry B. Ma; Jeffrey A. Nystuen

2007-10-01T23:59:59.000Z

53

National Oceanic and Atmospheric Administration's (NOAA) Oceans and Human Health Initiative  

E-Print Network (OSTI)

. We receive many benefits from the oceans from seafood, recreation and transportation industriesNational Oceanic and Atmospheric Administration's (NOAA) Oceans and Human Health Initiative (OHHI) is taking a new look at how the health of our ocean impacts our own health and well- being, and in turn how

54

Proper orthogonal decomposition approach and error estimation of mixed finite element methods for the tropical Pacific Ocean  

E-Print Network (OSTI)

for the tropical Pacific Ocean reduced gravity model Zhendong Luo a , Jiang Zhu b , Ruiwen Wang b , I.M. Navon c Available online 8 May 2007 Abstract In this paper, the tropical Pacific Ocean reduced gravity model and the insufficient knowledge of air­sea exchange processes. The tropical Pacific Ocean reduced gravity model

Navon, Michael

55

A new mechanism for ocean-atmosphere coupling in midlatitudes  

E-Print Network (OSTI)

to the tropopause are met frequently over all major western boundary currents and their extension in the oceanicA new mechanism for ocean-atmosphere coupling in midlatitudes A. Czaja, and N. Blunt Department The role of moist convection in "transferring" upward surface ocean condi- tions throughout the troposphere

56

Lecture(s) 9 Slides from atmosphere-ocean lectures  

E-Print Network (OSTI)

albedo and ice can insulate the ocean from the atmosphere above. When the ocean surface freezes and ocean, meshed together and yet also forced by buoyant density differences. Ice and snow..the cryosphere it melts in summer this ice makes a layer of quite fresh water at the surface. ­ beside the density

57

EPS 22 The Fluid Earth: Oceans, Atmosphere, Climate & Environment  

E-Print Network (OSTI)

EPS 22 The Fluid Earth: Oceans, Atmosphere, Climate & Environment Spring 2012 Instructors: Steven Hall E Overview Description: EPS22 introduces students to the fluid earth, emphasizing Earth's weather is EPS22? A graphical representation of major topics. Current topics in atmospheric and ocean sciences

Huybers, Peter

58

Elements of tropical Pacific decadal variability  

E-Print Network (OSTI)

potential to change the background state of the eastern tropical Pacific. Simultaneously, a redistribution of atmospheric vorticity in the western tropical Pacific affects isopycnal depth and therefore ocean thermal structure progressing the decadal change...

Fuckar, Neven-Stjepan

2003-01-01T23:59:59.000Z

59

Transport Processes in the Tropical Warm Pool Boundary Layer. Part II: Vertical Structure and Variability  

Science Journals Connector (OSTI)

The structure of the intertropical convergence zone ITCZ cloud-topped marine atmospheric boundary layer away from the most intense mesoscale convective systems during the Tropical Ocean Global Atmosphere Coupled Ocean–Atmosphere Response ...

A. G. Williams; J. M. Hacker; H. Kraus

1997-08-01T23:59:59.000Z

60

Atmosphere–ocean dynamics in the Western Indian Ocean recorded in corals  

Science Journals Connector (OSTI)

...Atmosphere-ocean-ecology dynamics in the Western Indian Ocean organized by Tom Spencer...18 O (dashed line) and 11-point moving average (solid line...Parker et al. 1995) and 11-point moving average (solid line...to the wind- driven southern Indian Ocean gyre (Allan et al. 1995...

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

A Simple Model of Climatological Rainfall and Vertical Motion Patterns over the Tropical Oceans  

E-Print Network (OSTI)

A simple model is developed that predicts climatological rainfall, vertical motion, and diabatic heating profiles over the tropical oceans given the sea surface temperature (SST), using statistical relationships deduced ...

Back, Larissa E.

62

Numerical simulation of the Mindanao Eddy and Tropical Currents of Pacific Ocean  

Science Journals Connector (OSTI)

Results of numerical simulation of currents in the western North Tropical Pacific Ocean by using a barotropic primitive equation model ... strength-circulation systems such as the North Equatorial Current, the Mi...

Li Rongfeng; Zeng Qingcun; Ji Zhongzhen

1992-09-01T23:59:59.000Z

63

ENSO’s Impact on the Gap Wind Regions of the Eastern Tropical Pacific Ocean  

Science Journals Connector (OSTI)

The recently released NCEP Climate Forecast System Reanalysis (CFSR) is used to examine the response to ENSO in the northeast tropical Pacific Ocean (NETP) during 1979–2009. The normally cool Pacific sea surface temperatures (SSTs) associated with ...

Michael A. Alexander; Hyodae Seo; Shang Ping Xie; James D. Scott

2012-05-01T23:59:59.000Z

64

Passive microwave observations of mesoscale convective systems over the tropical Pacific Ocean  

E-Print Network (OSTI)

This paper presents high resolution passive microwave measurements obtained in the western Pacific warm pool region. These measurements represent the first comprehensive observations of convection over the tropical oceans, and were obtained from...

McGaughey, Gary Rae

2012-06-07T23:59:59.000Z

65

Three-Dimensional Structure of Tropical Cells in the Central Equatorial Pacific Ocean  

Science Journals Connector (OSTI)

The shallow tropical cells (TCs) in the central equatorial Pacific Ocean are characterized by strong equatorial upwelling, near-surface wind-driven poleward flow, downwelling near the cold tongue boundaries, and equatorward flow below the surface ...

Renellys C. Perez; William S. Kessler

2009-01-01T23:59:59.000Z

66

Decadal-Scale Climate and Ecosystem Interactions in the North Pacific Ocean  

Science Journals Connector (OSTI)

Decadal-scale climate variations in the Pacific Ocean wield a strong influence on the oceanic ... unclear, but stochastic atmospheric forcing of the ocean combined with atmospheric teleconnections from the tropic...

Arthur J. Miller; Fei Chai; Sanae Chiba; John R. Moisan…

67

FOAM: Fast Ocean Atmosphere Model | Argonne National Laboratory  

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

FOAM: Fast Ocean Atmosphere Model FOAM: Fast Ocean Atmosphere Model FOAM: Fast Ocean Atmosphere Model FOAM is a fully coupled, mixed-resolution, general circulation model designed for high-throughput (simulated years per day) while still providing a good simulated mean climate and simulated variability. FOAM uses the combination of a low resolution (R15) atmosphere model, a highly efficient medium-resolution ocean model, and distributed memory parallel processing to achieve high throughput on relatively modest numbers of processors (16-64). The quality of the simulated climate compares well with higher resolution models. No flux corrections are used. FOAM's intended purpose is to study long-term natural variability in the climate system. FOAM is also well suited for paleoclimate applications. FOAM is highly

68

12.003 Physics of Atmospheres and Oceans, Fall 2007  

E-Print Network (OSTI)

The laws of classical mechanics and thermodynamics are used to explore how the properties of fluids on a rotating Earth manifest themselves in, and help shape, the global patterns of atmospheric winds, ocean currents, and ...

Marshall, John C.

69

Impact of Tropical Cyclones on the Heat Budget of the South Pacific Ocean S. JULLIEN,* C. E. MENKES,1  

E-Print Network (OSTI)

Impact of Tropical Cyclones on the Heat Budget of the South Pacific Ocean S. JULLIEN,* C. E. MENKES cyclones (TCs) in the South Pacific convergence zone through a complete ocean heat budget. The TC impact, in final form 4 May 2012) ABSTRACT The present study investigates the integrated ocean response to tropical

70

Impact of Tropical Cyclones on the Heat Budget of the South Pacific Ocean  

Science Journals Connector (OSTI)

The present study investigates the integrated ocean response to tropical cyclones (TCs) in the South Pacific convergence zone through a complete ocean heat budget. The TC impact analysis is based on the comparison between two long-term (1979–2003) ...

S. Jullien; C. E. Menkes; P. Marchesiello; N. C. Jourdain; M. Lengaigne; A. Koch-Larrouy; J. Lefčvre; E. M. Vincent; V. Faure

2012-11-01T23:59:59.000Z

71

Interpretation of tropical thermocline cooling in the Indian and Pacific oceans during recent decades  

E-Print Network (OSTI)

, but also could benefit fish industry because changes in vertical structure of oceanic temperature can have substan- tial effects on marine ecosystems and fisheries (e.g., a review paper by Brill [1994]). 2. DataInterpretation of tropical thermocline cooling in the Indian and Pacific oceans during recent

Han, Weiqing

72

Satellite and Argo observed surface salinity variations in the tropical Indian Ocean and their association with the Indian Ocean Dipole mode  

Science Journals Connector (OSTI)

This study investigates sea surface salinity (SSS) variations in the tropical Indian Ocean (IO) using the Aquarius/SAC-D and the Soil Moisture and Ocean Salinity (SMOS) satellite data and the Argo observations during July 2010-July 2014. Compared ...

DU Yan; ZHANG Yuhong

73

Validating Atmospheric Reanalysis Data Using Tropical Cyclones as Thermometers James P. Kossin  

E-Print Network (OSTI)

1 Validating Atmospheric Reanalysis Data Using Tropical Cyclones as Thermometers James P. Kossin tropical cyclones as thermometers. Bull. Amer. Meteor. Soc. doi:10.1175/BAMS-D-14-00180, in press. Capsule Tropical cyclones are used as traveling thermometers to globally sample upper-tropospheric temperatures

Kossin, James P.

74

Using Satellite Ocean Color Data to Derive an Empirical Model for the Penetration Depth of Solar Radiation (Hp) in the Tropical Pacific Ocean  

E-Print Network (OSTI)

Radiation (Hp) in the Tropical Pacific Ocean RONG-HUA ZHANG State Key Laboratory of Satellite OceanUsing Satellite Ocean Color Data to Derive an Empirical Model for the Penetration Depth of Solar Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, Zhejiang

Chen, .Dake

75

Coastal Atmospheric Circulation around an Idealized Cape during Wind-Driven Upwelling Studied from a Coupled Ocean–Atmosphere Model  

Science Journals Connector (OSTI)

The study analyzes atmospheric circulation around an idealized coastal cape during summertime upwelling-favorable wind conditions simulated by a mesoscale coupled ocean–atmosphere model. The domain resembles an eastern ocean boundary with a ...

Natalie Perlin; Eric D. Skyllingstad; Roger M. Samelson

2011-03-01T23:59:59.000Z

76

Representing El Nińo in Coupled Ocean–Atmosphere GCMs: The Dominant Role of the Atmospheric Component  

Science Journals Connector (OSTI)

A systematic modular approach to investigate the respective roles of the ocean and atmosphere in setting El Nińo characteristics in coupled general circulation models is presented. Several state-of-the-art coupled models sharing either the same ...

E. Guilyardi; S. Gualdi; J. Slingo; A. Navarra; P. Delecluse; J. Cole; G. Madec; M. Roberts; M. Latif; L. Terray

2004-12-01T23:59:59.000Z

77

Evolving research directions in Surface OceanLower Atmosphere (SOLAS) science  

E-Print Network (OSTI)

Evolving research directions in Surface Ocean­Lower Atmosphere (SOLAS) science Cliff S. Law. Understanding the exchange of energy, gases and particles at the ocean­atmosphere interface is critical­Lower Atmosphere Study (SOLAS) coordinates multi-disciplinary ocean­ atmosphere research projects that quantify

78

Climate response to tropical cyclone-induced ocean mixing in an1 Earth system model of intermediate complexity2  

E-Print Network (OSTI)

Climate response to tropical cyclone-induced ocean mixing in an1 Earth system model of intermediate system model of intermediate complexity. The parameterization is based on21 previously published global. Abstract19 We introduce a parameterization of ocean mixing by tropical cyclones (TCs) into20 an Earth

79

Variation of surface currents and effects on dispersion in the Tropical Pacific Ocean  

E-Print Network (OSTI)

VARIATION OF SURFACE CURRENTS AND EFFECTS ON DISPERSION IN THE TROPICAL PACIFIC OCEAN A Thesis by DOYLE JACKSON HORNE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the r quirement for the degree of MASTER... '" , ~, -~WPc- (Member ) c c c . 1L. . (Hi ad o f DePar Lment) 111 ABSTRACT Variation of Surface Currents and Effects on Dispersion in the Tropical Pacific Ocean. (May 1980) Doyle Jackson Horne, B. S. , University of Illinois, Urbana Chairman...

Horne, Doyle Jackson

2012-06-07T23:59:59.000Z

80

Physics of Atmospheres and Oceans: Class Question Sheets COMPARATIVE PLANETARY ATMOSPHERES  

E-Print Network (OSTI)

is the mass of Jupiter and R its radius. Assuming this is all converted to thermal energy, give a crudePhysics of Atmospheres and Oceans: Class Question Sheets COMPARATIVE PLANETARY ATMOSPHERES PLA.1 for discounting the less popular of these? Show that the energy liberated during the collapse of a sphere of mass

Read, Peter L.

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

National Oceanic and Atmospheric Administration (NOAA) | Open Energy  

Open Energy Info (EERE)

Oceanic and Atmospheric Administration (NOAA) Oceanic and Atmospheric Administration (NOAA) Jump to: navigation, search Logo: National Oceanic and Atmospheric Administration (NOAA) Name National Oceanic and Atmospheric Administration (NOAA) Address 1401 Constitution Avenue, NW Room 5128 Washington, DC 20230 Zip 20230 Phone number (301) 713-4000. Website http://www.noaa.gov/index.html Coordinates 38.892111°, -77.031981° 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":38.892111,"lon":-77.031981,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

82

Monitoring and interpreting the ocean uptake of atmospheric CO2  

Science Journals Connector (OSTI)

...interpreting the ocean uptake of atmospheric CO2 Andrew J. Watson 1 * Nicolas Metzl 2 Ute...important sink for anthropogenically produced CO2, and on time scales longer than a century they will be the main repository for the CO2 that humans are emitting. Our knowledge...

2011-01-01T23:59:59.000Z

83

JOINT INSTITUTE FOR THE STUDY OF THE ATMOSPHERE & OCEAN (JISAO)  

E-Print Network (OSTI)

-dimensional datasets. SCIENCE HIgHLIgHTS MARINE ECOSYSTEMS / FISHERIES RECRUITMENT Collaborations JOINT INSTITUTE FOR THE STUDY OF THE ATMOSPHERE & OCEAN (JISAO) ANNUAL REPORT JULy 1, 2005 ­ JUNE Management and Administration 20 ProjEct SummariES 23 Marine Ecosystems 24 Climate 44 Environmental Chemistry

Rigor, Ignatius G.

84

Doctoral Programs Atmospheric, Oceanic & Space Sciences  

E-Print Network (OSTI)

University of Michigan Space Research Building 2455 Hayward Street Ann Arbor, MI 48109-2143 aoss Katherine E. White, Ann Arbor ©The Regents of the University of Michigan Research areas Atmospheric Science/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved

Eustice, Ryan

85

Ch.6 Atmospheric and Oceanic Circulations  

E-Print Network (OSTI)

difference in air pressure. #12;Measure Air Pressure-- Mercury Barometer ·Seal the glass tube at one end of latitude. Meridional flows Zonal flows #12;Learning Objective Two: Air Pressure #12;Air Pressure Atmospheric pressure is the force per unit area exerted against a surface by the weight of air above

Pan, Feifei

86

Radon and its Daughters in the Atmosphere Over the Equatorial Pacific Ocean  

Science Journals Connector (OSTI)

......Atmosphere Over the Equatorial Pacific Ocean T. Tanji M. Okino I. Sugioka...atmosphere over the eastern equatorial Pacific Ocean during the period from 2 to 22...and over the central and western Pacific from 3 September to 14 December......

T. Tanji; M. Okino; I. Sugioka; S. Mochizuki

1992-12-01T23:59:59.000Z

87

The effect of regional ocean-atmosphere coupling on the long-term variability in the Pacific Ocean  

Science Journals Connector (OSTI)

A fully coupled ocean-atmosphere model is applied to highlight the ... decadal and longer time scales) in the Pacific Ocean. We are interested in the effect of ... processes. The control run successfully simulate...

Lin Feng ? ?; Dexing Wu ???; Xiaopei Lin ???…

2010-03-01T23:59:59.000Z

88

Do the Tallest Convective Cells over the Tropical Ocean Have Slow Updrafts?  

Science Journals Connector (OSTI)

Far from continents, a few storms lift precipitation-size ice particles into the stratosphere, 17 to 18 km above the tropical ocean. This study is the first to examine the observed properties of a large sample of these extremely tall convective ...

Owen A. Kelley; John Stout; Michael Summers; Edward J. Zipser

2010-05-01T23:59:59.000Z

89

The Mechanical Energy Input to the Ocean Induced by Tropical Cyclones LING LING LIU AND WEI WANG  

E-Print Network (OSTI)

, and environments. 1. Introduction Although oceans receive a huge amount of thermal energy, such energy cannot be efficiently converted into mechanical energy because the ocean is heated and cooled from the same geopotentialThe Mechanical Energy Input to the Ocean Induced by Tropical Cyclones LING LING LIU AND WEI WANG

Huang, Rui Xin

90

Modelling the Effect of Ocean Waves on the Atmospheric and Ocean Boundary Layers  

Science Journals Connector (OSTI)

Ocean waves, in addition to generating direct forces on fixed and floating offshore wind generator structures, also have significant indirect effects via their influence on the atmospheric and oceanic boundary layers above and below the water surface. In the atmospheric boundary layer the waves act as roughness elements, influencing the turbulent flow and the vertical wind speed profile, and induce oscillatory motions in the airflow. Spray droplets from breaking wave crests enhance structure corrosion, and may lead to icing under low-temperature conditions. Below the water surface, the air-sea momentum flux and mechanical energy flux, mediated by the waves and wave-generated turbulence, affect the vertical profiles of ocean current, temperature, and salinity. Effects include modifying the structural forces and dynamics, and the movement and dispersion of marine organisms, pollutants, and air bubbles generated by breaking waves, with consequences for fouling, corrosion, and environmental impact. Measurement of relevant airflow and ocean dynamical variables is also challenging, as near the water surface it is often necessary to use instruments mounted on moving measurement platforms. Modelling such boundary-layer effects is a complex task, as a result of feedbacks between the airflow, wave field, current field, and turbulence in the atmosphere and the ocean. We present results from a coupled model study of the North Sea and Norwegian Sea area. We employ a mesoscale atmosphere model (WRF) and a spectral wave model (WAM), running simultaneously and coupled using the open-source coupler MCEL which can interpolate between different model grids and time steps. To investigate the ocean boundary layer, one-dimensional model experiments were performed for an idealized Ekman layer and for locations in the North Sea, Atlantic Ocean, and the northern Pacific, using a version of the GOTM turbulence model, modified to take wave dynamics into account. Results show how the wave field alters the ocean's aerodynamic roughness and the air–sea momentum flux, depending on the relation between the surface wind speed and the propagation speed of the wave crests (the wave age). These effects will feed back into the airflow, wind speed and turbulence profile in the boundary layer. The ocean dynamics experiments showed results which compare favourably with field observations from the LOTUS3 and PROVESS experiments in the north Atlantic and North Sea, and Ocean Weather Station Papa in the Pacific Ocean.

Alastair D. Jenkins; Mostafa Bakhoday Paskyabi; Ilker Fer; Alok Gupta; Muralidhar Adakudlu

2012-01-01T23:59:59.000Z

91

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

do not resolve the energy pathways well and few tide gaugetide gauge data, Rabinovich and Thomson (2007) observed distinctive pulses of energy.ocean tide gauges. To better understand the shift in energy

Drushka, Kyla

2011-01-01T23:59:59.000Z

92

The Influence of Tropical Deforestation on the Northern Hemisphere Climate by Atmospheric Teleconnections  

Science Journals Connector (OSTI)

Numerous studies have identified the regional-scale climate response to tropical deforestation through changes to water, energy, and momentum fluxes between the land surface and the atmosphere. There has been little research, however, on the role ...

Peter K. Snyder

2010-06-01T23:59:59.000Z

93

Validating Atmospheric Reanalysis Data Using Tropical Cyclones as Thermometers  

Science Journals Connector (OSTI)

Capsule: Tropical cyclones are used as traveling thermometers to globally sample upper-tropospheric temperatures and help mitigate uncertainties due to discrepancies among different reanalysis data products.

James P. Kossin

94

Sensitivity of tropical deep convection in global models: effects of horizontal resolution, surface constraints and 3D atmospheric nudging  

E-Print Network (OSTI)

, the Eastern Indian Ocean and Maritime Continent, and 174 tropical South America. The Inter Tropical Convergence Zone (ITCZ), and to a smaller extent the 175 South Pacific Convergence Zone (SPCZ), also have their signatures in the OLR and PR fields. When 176... larger for PR. This is 161 in agreement with previous studies, which show large model precipitation biases in tropical ocean 162 regions (Martin et al., 2010; Schiemann et al., 2014). For OLR ~85% of model configurations are in 163 good agreement...

Chemel, Charles; Russo, Maria; Hosking, Scott; Telford, Paul; Pyle, John

2014-01-01T23:59:59.000Z

95

The bottom currents in the area of abyssal hills in the north-east tropical Pacific Ocean  

Science Journals Connector (OSTI)

The results of simultaneous measurements of the bottom (6.25 and 35 m above the bottom) currents, deep currents, and surface currents made at three points in the north-east tropical Pacific Ocean are given. The b...

T. A. Demidova; E. A. Kontar'; A. V. Sokov; A. M. Belyaev

1993-01-01T23:59:59.000Z

96

Response of a Coupled Ocean–Atmosphere Model to Increasing Atmospheric Carbon Dioxide: Sensitivity to the Rate of Increase  

Science Journals Connector (OSTI)

The influence of differing rates of increase of the atmospheric CO2 concentration on the climatic response is investigated using a coupled ocean–atmosphere model. Five transient integrations are performed each using a different constant ...

Ronald J. Stouffer; Syukuro Manabe

1999-08-01T23:59:59.000Z

97

Surface currents and equatorial thermocline in a coupled upper ocean-atmosphere GCM  

Science Journals Connector (OSTI)

The Oregon State University coupled upper ocean-atmosphere GCM is evaluated in terms of the simulated winds, ocean currents and thermocline depth variations. Although the zonal ... a factor of about three and the...

Kenneth R Sperber; Sultan Hameed; W Gates Lawrence

1992-04-01T23:59:59.000Z

98

Technical Sessions B. E. Manner National Oceanic and Atmospheric Administration  

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

B. E. Manner B. E. Manner National Oceanic and Atmospheric Administration Wave Propagation Laboratory 130ulder, CO 80303 The Atmospheric Radiation Measurement (ARM) pirog ram goals are ambitious, and its schedule is demanding. Many of the instruments, proposed for operations at the first Cloud and Radiation Testbed (CART) site as early alS 1992 represent emerging technology and exist only as :special research prototypes. Therefore, an important preparatory step for ARM was an intensive field project in Colorado in 1991 to assess the suitability of instruments an(j tech- niques for profiling the thermodynamic and kinematic structure of the troposphere and lower stratosphere. The field work was designed to provide ARM with a head start by gathering practical information for the desigln and

99

Autonomous Surface Vehicle Measurements of the Ocean’s Response to Tropical Cyclone Freda  

Science Journals Connector (OSTI)

On 31 December 2012, an instrumented autonomous surface vehicle (ASV; Wave Glider) transiting across the Pacific from Hawaii to Australia as part of the Pacific Crossing (PacX) project came very close (46 km) to the center of a category 3 Tropical ...

Luc Lenain; W. Kendall Melville

2014-10-01T23:59:59.000Z

100

Abundance of oceanic sea skaters, Halobates in the tropical Indian Ocean with respect to surface chlorophyll and oxygen concentrations  

Science Journals Connector (OSTI)

Abstract This study aims to clarify the relationship between environmental factors and the abundance of oceanic sea skaters, Halobates mostly H. micans. Samplings were performed in the tropical Indian Ocean at 15 stations along a straight line from 04°09?S, 094°26?E to 16°39?S, 065°15?E in October–November, 2010 with a Neuston net with CTD casting. A significant positive correlation was seen between chlorophyll concentration and number of Halobates individuals (mostly H. micans) collected, while a significant negative correlation was seen between oxygen concentration and number of individuals. More food such as zooplankton available to sea skaters in high-chlorophyll and low-oxygen areas may lead to higher population densities. Neuston net samplings were also taken around a fixed station, 8°S, 80°30?E in September–October 2011. The larval density of H. micans tended to be higher in spots where the air temperature was between 27.5 °C and 28.0 °C than in spots where it was between 25 °C and 27 °C. Reproductive and growth activities of H. micans may be affected by even a relatively small variation in air temperature in the spots they inhabit even at the fixed point 8°S, 80°30E in the Indian Ocean.

Tetsuo Harada; Yuki Osumi; Takashi Shiraki; Akane Kobayashi; Takero Sekimoto; Mitsuru Nakajo; Hitomi Takeuchi; Koki Iyota

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Upper Ocean Response to Tropical Cyclone Wind Asymmetries S. Daniel Jacob and Lynn K. Shay  

E-Print Network (OSTI)

High Resolution Radiometer (AVHRR) images of SST. As a storm intensifies, the increasing wind speed may. However, the significant SST reduction induced by the increasing wind speed leads to reduced air to the atmosphere ( 20%) and vertical mixing at the base of the oceanic mixed layer ( 80%) induced by wind stress

Shay, Lynn K. "Nick"

102

Atmospheric Radiation Measurement (ARM) Data from Manacapuru, Brazil for the Green Ocean Amazon (GOAMAZON) Field Campaign  

DOE Data Explorer (OSTI)

The Amazon rain forest in Brazil is the largest broadleaf forest in the world, covering 7 million square kilometers of the Amazon Basin in South America. It represents over half of the planet’s remaining rain forests, and comprises the most biodiverse tract of tropical rain forest on the planet. Due to the sheer size of the Amazon rain forest, the area has a strong impact on the climate in the Southern Hemisphere. To understand the intricacies of the natural state of the Amazon rain forest, the Green Ocean Amazon, or GOAMAZON, field campaign is a two-year scientific collaboration among U.S. and Brazilian research organizations. They are conducting a variety of different experiments with dozens of measurement tools, using both ground and aerial instrumentation, including the ARM Aerial Facility's G-1 aircraft. For more information on the holistic view of the campaign, see the Department of Energy’s GOAMAZON website. As a critical component of GOAMAZON, the ARM Mobile Facility (AMF) will obtain measurements near Manacapuru, south of Manaus, Brazil, from January to December 2014. The city of Manaus, with a population of 3 million, uses high-sulfur oil as their primary source of electricity. The AMF site is situated to measure the atmospheric extremes of a pristine atmosphere and the nearby cities’ pollution plume, as it regularly intersects with the site. Along with other instrument systems located at the Manacapuru site, this deployment will enable scientists to study how aerosol and cloud life cycles are influenced by pollutant outflow from a tropical megacity.

103

Climate Simulations for 1951–2050 with a Coupled Atmosphere–Ocean Model  

Science Journals Connector (OSTI)

The authors simulate climate change for 1951–2050 using the GISS SI2000 atmospheric model coupled to HYCOM, a quasi-isopycnal ocean model (“ocean E”), and contrast the results with those obtained using the same atmosphere coupled to a passive Q-...

Shan Sun; James E. Hansen

2003-09-01T23:59:59.000Z

104

Ocean–Atmosphere Interactions in the Emergence of Complexity in Simple Chemical Systems  

Science Journals Connector (OSTI)

Ocean–Atmosphere Interactions in the Emergence of Complexity in Simple Chemical Systems ... In this Account, we examine how water–air interfaces, namely, the surfaces of lakes, oceans, and atmospheric aerosols on ancient Earth, facilitated the emergence of complex structures necessary for life. ... Aerosols are liquid or solid suspensions in air with a broad, power law size distribution. ...

Elizabeth C. Griffith; Adrian F. Tuck; Veronica Vaida

2012-04-17T23:59:59.000Z

105

Analytical relationships between atmospheric carbon dioxide, carbon emissions, and ocean processes  

E-Print Network (OSTI)

Analytical relationships between atmospheric carbon dioxide, carbon emissions, and ocean processes of the air-sea system. The perturbation, dIc, includes carbon emissions and changes in the terrestrial), Analytical relationships between atmospheric carbon dioxide, carbon emissions, and ocean processes, Global

Follows, Mick

106

Northerly surface wind events over the eastern North Pacific Ocean : spatial distribution, seasonality, atmospheric circulation, and forcing  

E-Print Network (OSTI)

atmosphere over the eastern Pacific Ocean in summer, volumeover the eastern North Pacific Ocean throughout the year,over the eastern North Pacific Ocean and the western US. A

Taylor, Stephen V.

2006-01-01T23:59:59.000Z

107

Mixed Layer Temperature Balance on Intraseasonal Timescales in the Equatorial Pacific Ocean  

Science Journals Connector (OSTI)

The purpose of this study is to document the zonal evolution of processes affecting sea surface temperature (SST) variability on intraseasonal timescales in the equatorial Pacific Ocean. Data primarily from the Tropical Atmosphere Ocean (TAO) ...

Michael J. McPhaden

2002-09-01T23:59:59.000Z

108

The oceanic cycle and global atmospheric budget of carbonyl sulfide  

SciTech Connect

A significant portion of stratospheric air chemistry is influenced by the existence of carbonyl sulfide (COS). This ubiquitous sulfur gas represents a major source of sulfur to the stratosphere where it is converted to sulfuric acid aerosol particles. Stratospheric aerosols are climatically important because they scatter incoming solar radiation back to space and are able to increase the catalytic destruction of ozone through gas phase reactions on particle surfaces. COS is primarily formed at the surface of the earth, in both marine and terrestrial environments, and is strongly linked to natural biological processes. However, many gaps in the understanding of the global COS cycle still exist, which has led to a global atmospheric budget that is out of balance by a factor of two or more, and a lack of understanding of how human activity has affected the cycling of this gas. The goal of this study was to focus on COS in the marine environment by investigating production/destruction mechanisms and recalculating the ocean-atmosphere flux.

Weiss, P.S.

1994-12-31T23:59:59.000Z

109

Computational study of atmospheric transfer radiation on an equatorial tropical desert (La Tatacoa, Colombia)  

E-Print Network (OSTI)

Radiative transfer models explain and predict interaction between solar radiation and the different elements present in the atmosphere, which are responsible for energy attenuation. In Colombia there have been neither measurements nor studies of atmospheric components such as gases and aerosols that can cause turbidity and pollution. Therefore satellite images cannot be corrected radiometrically in a proper way. When a suitable atmospheric correction is carried out, loss of information is avoided, which may be useful for discriminating image land cover. In this work a computational model was used to find radiative atmospheric attenuation (300 1000nm wavelength region) on an equatorial tropical desert (La Tatacoa, Colombia) in order to conduct an adequate atmospheric correction.

Delgado-Correal, Camilo; Castańo, Gabriel

2012-01-01T23:59:59.000Z

110

The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx): Goals, platforms, and field operations  

SciTech Connect

The VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) was an international field program designed to make observations of poorly understood but critical components of the coupled climate system of the southeast Pacific. This region is characterized by strong coastal upwelling, the coolest SSTs in the tropical belt, and is home to the largest subtropical stratocumulus deck on Earth. The field intensive phase of VOCALS-REx took place during October and November 2008 and constitutes a critical part of a broader CLIVAR program (VOCALS) designed to develop and promote scientific activities leading to improved understanding, model simulations, and predictions of the southeastern Pacific (SEP) coupled ocean-atmosphere-land system, on diurnal to interannual timescales. The other major components of VOCALS are a modeling program with a model hierarchy ranging from the local to global scales, and a suite of extended observations from regular research cruises, instrumented moorings, and satellites. The two central themes of VOCALS-REx focus upon (a) links between aerosols, clouds and precipitation and their impacts on marine stratocumulus radiative properties, and (b) physical and chemical couplings between the upper ocean and the lower atmosphere, including the role that mesoscale ocean eddies play. A set of hypotheses designed to be tested with the combined field, monitoring and modeling work in VOCALS is presented here. A further goal of VOCALS-REx is to provide datasets for the evaluation and improvement of large-scale numerical models. VOCALS-REx involved five research aircraft, two ships and two surface sites in northern Chile. We describe the instrument payloads and key mission strategies for these platforms and give a summary of the missions conducted.

Wood, R.; Springston, S.; Mechoso, C. R.; Bretherton, C. S.; A.Weller, R.; Huebert, B.; Straneo, F.; Albrecht, B. A.; Coe, H.; Allen, G.; Vaughan, G.; Daum, P.; Fairall, C.; Chand, D.; Klenner, L. G.; Garreaud, R.; Grados, C.; Covert, D. S.; Bates, T. S.; Krejci, R.; Russell, L. M.; Szoeke, S. d.; Brewer, A.; Yuter, S. E.; Chaigneau, A.; Toniazzo, T.; Minnis, P.; Palikonda, R.; Abel, S. J.; Brown, W. O. J.; Williams, S.; Fochesatto, J.; Brioude, J.; Bower, K. N

2011-01-21T23:59:59.000Z

111

Intensified Impact of East Indian Ocean SST Anomaly on Tropical Cyclone Genesis Frequency over the Western North Pacific  

Science Journals Connector (OSTI)

A recent finding is the significant impact of the sea surface temperature anomaly (SSTA) over the east Indian Ocean (EIO) on the genesis frequency of tropical cyclones (TCs) over the western North Pacific (WNP). In this study it is shown that such ...

Ruifen Zhan; Yuqing Wang; Li Tao

2014-12-01T23:59:59.000Z

112

Real-Time Track Prediction of Tropical Cyclones over the North Indian Ocean Using the ARW Model  

E-Print Network (OSTI)

Real-Time Track Prediction of Tropical Cyclones over the North Indian Ocean Using the ARW Model of Technology Bhubaneswar, Odisha, India A. ROUTRAY National Centre for Medium Range Weather Forecasting, Noida The performance of the Advanced Research version of the Weather Research and Forecasting (ARW) model in real

113

Mesoscale coupled ocean-atmosphere feedbacks in boundary current systems  

E-Print Network (OSTI)

response of the ocean eddies . The power spectrum of thethe ocean. As such, the larger energy in the power spectrumocean eddies. On the other hand, Smoothed ROMS has higher power

Putrasahan, Dian Ariyani

2012-01-01T23:59:59.000Z

114

Modeling the Interaction between the Atmospheric and Oceanic Boundary Layers, Including a Surface Wave Layer  

Science Journals Connector (OSTI)

The interaction between the atmospheric and oceanic boundary layers is simulated by solving a closed system of equations including equations of motion, turbulent kinetic energy (TKE), turbulent exchange coefficient (TEC), expressions for air and ...

Le Ngoc Ly

1986-08-01T23:59:59.000Z

115

E-Print Network 3.0 - atmosphere ocean heat Sample Search Results  

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

of ACC oceanic... heat flux Total heat flux at 900 m: 4.7 to 7.5 kWm2. Implies 0.3 PW heat loss to atmosphere south... 12;Mechanisms: ... Source: Gille, Sarah T. - Scripps...

116

The second Hadley Centre coupled ocean-atmosphere GCM: model description, spinup and validation  

Science Journals Connector (OSTI)

...?This study describes a new coupled ocean-atmosphere general circulation model (OAGCM) developed for studies of climate change and results from a hindcast experiment. The model includes various physical and te...

T. C. Johns; R. E. Carnell; J. F. Crossley; J. M. Gregory…

1997-02-01T23:59:59.000Z

117

Effects of oceanic and atmospheric phenomena on precipitation and flooding in the Manafwa River Basin  

E-Print Network (OSTI)

An investigation was performed to determine the relationship between certain oceanic and atmospheric phenomena and the precipitation patterns in the Manafwa River Basin of eastern Uganda. Such phenomena are the El Nińo ...

Finney, William W., III (William Warner)

2014-01-01T23:59:59.000Z

118

Understanding El Nińo in Ocean–Atmosphere General Circulation Models: Progress and Challenges  

Science Journals Connector (OSTI)

Determining how El Nińo and its impacts may change over the next 10 to 100 years remains a difficult scientific challenge. Ocean–atmosphere coupled general circulation models (CGCMs) are routinely used both to analyze El Nińo mechanisms and ...

Eric Guilyardi; Andrew Wittenberg; Alexey Fedorov; Mat Collins; Chunzai Wang; Antonietta Capotondi; Geert Jan van Oldenborgh; Tim Stockdale

2009-03-01T23:59:59.000Z

119

The Total Meridional Heat Flux and Its Oceanic and Atmospheric Partition CARL WUNSCH  

E-Print Network (OSTI)

model residual is done to permit calculation of a preliminary uncertainty estimate for the atmospheric the oceanic flux drops rapidly, but does not actually vanish until the oceanic surface area goes to zero The partitioning and fluctuations in the net poleward transport of heat (energy, actually enthalpy; see War- ren

Wunsch, Carl

120

Simple Multicloud Models for the Diurnal Cycle of Tropical Precipitation. Part I: Formulation and the Case of the Tropical Oceans  

Science Journals Connector (OSTI)

The variation of tropical precipitation due to the diurnal cycle of solar heating is examined here in the context of two simple models for tropical convection. The models utilize three cloud types—congestus, deep, and stratiform—that are believed ...

Yevgeniy Frenkel; Boualem Khouider; Andrew J. Majda

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Large-Scale Distinctions between MJO and Non-MJO Convective Initiation over the Tropical Indian Ocean  

E-Print Network (OSTI)

Ocean JIAN LING Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida of Marine and Atmospheric Science, University of Miami, Miami, Florida PETER BECHTOLD European Centre discharge­recharge processes (Hendon 1988; Blade and Hartmann 1993; Kemball-Cook and Weare 2001

Zhang, Chidong

122

Coupled Ocean–Atmosphere Dynamical Processes in the Tropical Indian and Pacific Oceans and the TBO  

Science Journals Connector (OSTI)

The transitions (from relatively strong to relatively weak monsoon) in the tropospheric biennial oscillation (TBO) occur in northern spring for the south Asian or Indian monsoon and northern fall for the Australian monsoon involving coupled land–...

Gerald A. Meehl; Julie M. Arblaster; Johannes Loschnigg

2003-07-01T23:59:59.000Z

123

Heating in the tropical atmosphere: what level of detail is critical for accurate MJO simulations in GCMs?  

E-Print Network (OSTI)

Heating in the tropical atmosphere: what level of detail is critical for accurate MJO simulations processes that affect heating in some facet. In this study, we examine various heating adjustments in Community Atmospheric Model version 4 (CAM4) to determine what the vertical and horizontal heating

124

Variability, interaction and change in the atmosphere–ocean–ecology system of the Western Indian Ocean  

Science Journals Connector (OSTI)

...all. In a symposium on the Indian Ocean over 30 years ago, David...sea level? Why do most modern Indian Ocean reefs only thinly veneer...survival over long time-scales) point to the importance of long-term...regeneration. In the Western Indian Ocean, studies are in place...

2005-01-01T23:59:59.000Z

125

Local origins of interdecadal Pacific variability in the tropical and North Pacific Ocean: evidence from a comparative study of coral oxygen isotope records  

Science Journals Connector (OSTI)

Interdecadal Pacific variability (IPV) is commonly observed in both the tropical and mid-latitude Pacific Ocean, and has a widespread influence on surface climate in the Pan-Pacific Basin. This variability is rec...

Wenfeng Deng; Gangjian Wei

2014-08-01T23:59:59.000Z

126

Transient Responses of a Coupled Ocean–Atmosphere Model to Gradual Changes of Atmospheric CO2. Part I. Annual Mean Response  

Science Journals Connector (OSTI)

This study investigates the response of a climate model to a gradual increase or decrease of atmospheric carbon dioxide. The model is a general circulation model of the coupled atmosphere-ocean-land surface system with global geography and ...

S. Manabe; R. J. Stouffer; M. J. Spelman; K. Bryan

1991-08-01T23:59:59.000Z

127

Indoor atmospheric corrosion of conventional weathering steels in the tropical atmosphere of Panama  

Science Journals Connector (OSTI)

One year indoor atmospheric corrosion examinations have been carried out on two conventional weathering steels for a year, at two test sites, Tocumen and Sherman Breakwater in Panama. They are environmentally cla...

Juan A. Jaén; Josefina Iglesias; Olga Adames

2014-01-01T23:59:59.000Z

128

Warm ocean processes and carbon cycling in the Eocene  

Science Journals Connector (OSTI)

...of the marine biological pump has also been emphasized...cloud formation, latent heat transfer to the atmosphere...affected the biological pump, that is, the biologically...Observational evidence for an ocean heat pump induced by tropical cyclones...

2013-01-01T23:59:59.000Z

129

Estimating Vertical Motion Profile Shape within Tropical Weather States over the Oceans  

Science Journals Connector (OSTI)

The vertical structure of tropical deep convection strongly influences interactions with larger-scale circulations and climate. This paper focuses on investigating this vertical structure and its relationship with mesoscale tropical weather ...

Zachary J. Handlos; Larissa E. Back

2014-10-01T23:59:59.000Z

130

Barotropic Rossby Waves Radiating from Tropical Instability Waves in the Pacific Ocean  

Science Journals Connector (OSTI)

Tropical instability waves are triggered by instabilities of the equatorial current systems, and their sea level signal, with peak amplitude near 5°N, is one of the most prominent features of the dynamic topography of the tropics. Cross-spectral ...

J. Thomas Farrar

2011-06-01T23:59:59.000Z

131

The Impact of Oceanic Heat Transport on the Atmospheric Circulation: a Thermodynamic Perspective  

E-Print Network (OSTI)

The present study investigates how global thermodynamic properties of the climate system are affected by the changes in the intensity of the imposed oceanic heat transport in an atmospheric general circulation model in aqua-planet configuration. Increasing the poleward oceanic heat transport results in an overall increase in the surface temperature and a decrease in the equator-to-pole surface temperature difference as a result of the ice-albedo feedback. Following the classical ansatz by Stone, the atmospheric heat transport changes in such a way that the total poleward heat transport remains almost unchanged. We also find that the efficiency of the climate machine, the intensity of the Lorenz energy cycle and the material entropy production of the system decline with increased oceanic heat transport which suggests that the climate system becomes less efficient and turns into a state of reduced entropy production, as the enhanced oceanic transport performs a stronger large-scale mixing between geophysical fl...

Schröder, Alexander; Lunkeit, Frank

2014-01-01T23:59:59.000Z

132

Interannual Biases Induced by Freshwater Flux and Coupled Feedback in the Tropical Pacific  

Science Journals Connector (OSTI)

Freshwater flux (FWF) forcing–induced feedback has not been represented adequately in many coupled ocean–atmosphere models of the tropical Pacific. Previously, various approximations have been made in representing the FWF forcing in climate ...

Rong-Hua Zhang; Guihua Wang; Dake Chen; A. J. Busalacchi; E. C. Hackert

2010-05-01T23:59:59.000Z

133

An improved wind speed algorithm for “Jason-1” altimeter under tropical cyclone conditions  

Science Journals Connector (OSTI)

Rain effect and lack of in situ validation data are two main causes of tropical cyclone wind retrieval errors. The National Oceanic and Atmospheric ... (NRCS); Hurricane Research Division (HRD) wind speed, which ...

Bangyong Qin; Xuan Zhou; Honglei Zhang; Xiaofeng Yang; Rong Lu…

2014-07-01T23:59:59.000Z

134

Journal of Atmospheric and Oceanic Technology EARLY ONLINE RELEASE  

E-Print Network (OSTI)

uncertainty associated with winter storm precipitation type, accumulation, and29 timing is a major forecasting hydrometeor classification algorithm for winter precipitation. J. Atmos. Oceanic Technol. doi:10.1175/JTECH classification algorithm for1 winter precipitation2 Elizabeth J. Thompson, Steven A. Rutledge, Brenda Dolan

Rutledge, Steven

135

An Assessment of Factors Limiting Tropical Congestus Cloud-Top Heights  

E-Print Network (OSTI)

Tropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response Experiment USA United States of America UTC Universal Time Constant x TABLE OF CONTENTS Page ABSTRACT...) Histogram of brightness temperatures derived from GMS IR TB data over the West Pacific, showing the five stages of cloud development (time right to left); (b) Radiosonde relative humidity composites corresponding to the times in (a...

Casey, Sean P.

2010-07-14T23:59:59.000Z

136

AtmosphericAtmospheric Composition Introduction The division investigates the atmospheric  

E-Print Network (OSTI)

development on observation side was the installation of an ozone observation station in Surinam in close co-operation with the Surinam Meteorological Service. Processes in the tropical regions are important for the global climate and the global atmospheric composition. The participation in Indoex (Indian Ocean Experiment) and this Surinam

Haak, Hein

137

Air Resources Laboratory The Air Resources Laboratory (ARL) is a research laboratory within the National Oceanic and Atmospheric Administration  

E-Print Network (OSTI)

and the atmospheric transport, transformation and fate of air pollutants. To support air quality decision makers, ARL the interaction of air pollutants in the atmosphere and between the atmosphere and the underlying land and water the National Oceanic and Atmospheric Administration (NOAA). ARL is headquartered at the NOAA Center for Weather

138

Regional Impacts of Climate Change and Atmospheric CO2 on Future Ocean Carbon Uptake: A Multimodel Linear Feedback Analysis  

Science Journals Connector (OSTI)

The increase in atmospheric CO2 over this century depends on the evolution of the oceanic air–sea CO2 uptake, which will be driven by the combined response to rising atmospheric CO2 itself and climate change. Here, the future oceanic CO2 uptake is ...

Tilla Roy; Laurent Bopp; Marion Gehlen; Birgit Schneider; Patricia Cadule; Thomas L. Frölicher; Joachim Segschneider; Jerry Tjiputra; Christoph Heinze; Fortunat Joos

2011-05-01T23:59:59.000Z

139

The Tropical Response to Extratropical Thermal Forcing in an Idealized GCM: The Importance of Radiative Feedbacks and Convective Parameterization  

E-Print Network (OSTI)

) atmospheric energy transport per unit mass transport] of the model tropics converts the energy flux change 25% between the imposed oceanic flux and the resulting response in the atmospheric energy transportThe Tropical Response to Extratropical Thermal Forcing in an Idealized GCM: The Importance

Miami, University of

140

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCE The Effect ENSO Has on Lightning  

E-Print Network (OSTI)

or no effect on flash rates. Historical records of lightning flash rates and lightning climatology are fairlyDEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCE The Effect ENSO Has on Lightning Using NLDN and OTD/LIS Lightning Detection Networks Scholarly Paper in partial fulfillment of the requirements for an MS degree

Maryland at College Park, University of

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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 Ocean–Land–Atmosphere Model: Optimization and Evaluation of Simulated Radiative Fluxes and Precipitation  

Science Journals Connector (OSTI)

This work continues the presentation and evaluation of the Ocean–Land–Atmosphere Model (OLAM), focusing on the model’s ability to represent radiation and precipitation. OLAM is a new, state-of-the-art earth system model, capable of user-specified ...

David Medvigy; Robert L. Walko; Martin J. Otte; Roni Avissar

2010-05-01T23:59:59.000Z

142

UDC 551.613.1:551.511.33:551.509.313(213) Response of the Tropical Atmosphere  

E-Print Network (OSTI)

study of the tropical atmosphere. From analyses of wind data in the lower stratosphere over considers lateral coupling with higher latitude energy sources as the most important driving force are of an observational nature. Kidson et al. (1969) studied the statistical properties of both the steady and transient

Webster, Peter J.

143

2015 Pearson Education, Inc. Chapter 6 Atmospheric and Oceanic  

E-Print Network (OSTI)

. Atmospheric Pressure Profile #12;© 2015 Pearson Education, Inc. Measure Air Pressure--Mercury Barometer · Seal Education, Inc. Learning Objectives · Define the concept of air pressure. · Describe instruments used to measure air pressure. · Define wind. · Locate the primary high- and low-pressure areas and principal winds

Pan, Feifei

144

Transient Response of the Hadley Centre Coupled Ocean-Atmosphere Model to Increasing Carbon Dioxide. Part III: Analysis of Global-Mean Response Using Simple Models  

Science Journals Connector (OSTI)

The roles of surface, atmospheric, and oceanic feedbacks in controlling the global-mean transient response of a coupled ocean-atmosphere general circulation model to increasing carbon dioxide are investigated. The analysis employs a four-box ...

J. M. Murphy

1995-03-01T23:59:59.000Z

145

Assessment of storage lipid accumulation patterns in eucalanoid copepods from the eastern tropical Pacific Ocean  

Science Journals Connector (OSTI)

Abstract Members of the copepod family Eucalanidae are widely distributed throughout the world?s oceans and have been noted for their accumulation of storage lipids in high- and low-latitude environments. However, little is known about the lipid composition of eucalanoid copepods in low-latitude environments. The purpose of this study was to examine fatty acid and alcohol profiles in the storage lipids (wax esters and triacylglycerols) of Eucalanus inermis, Rhincalanus rostrifrons, R. nasutus, Pareucalanus attenuatus, and Subeucalanus subtenuis, collected primarily in the eastern tropical north Pacific near the Tehuantepec Bowl and Costa Rica Dome regions, noted for its oxygen minimum zone, during fall 2007 and winter 2008/2009. Adult copepods and particulate material were collected in the upper 50 m and from 200 to 300 m in the upper oxycline. Lipid profiles of particulate matter were generated to help ascertain information on ecological strategies of these species and on differential accumulation of dietary and modified fatty acids in the wax ester and triacylglycerol storage lipid components of these copepods in relation to their vertical distributions around the oxygen minimum zone. Additional data on phospholipid fatty acid and sterol/fatty alcohol fractions were also generated to obtain a comprehensive lipid data set for each sample. Rhincalanus spp. accumulated relatively large amounts of storage lipids (31–80% of dry mass (DM)), while E. inermis had moderate amounts (2–9% DM), and P. attenuatus and S. subtenuis had low quantities of storage lipid (0–1% DM). E. inermis and S. subtenuis primarily accumulated triacylglycerols (>90% of storage lipids), while P. attenuatus and Rhincalanus spp. primarily accumulated wax esters (>84% of storage lipids). Based on previously generated molecular phylogenies of the Eucalanidae family, these results appear to support genetic predisposition as a major factor explaining why a given species accumulates primarily triacylglycerols or wax esters, and also potentially dictating major fatty acid and alcohol accumulation patterns within the more highly modified wax ester fraction. Comparisons of fatty acid profiles between triacylglycerol and wax ester components in copepods with that in available prey suggested that copepod triacylglycerols were more reflective of dietary fatty acids, while wax esters contained a higher proportion of modified or de novo synthesized forms. Sterols and phospholipid fatty acids were similar between species, confirming high levels of regulation within these components. Similarities between triacylglycerol fatty acid profiles of E. inermis collected in surface waters and at >200 m depth indicate little to no feeding during their ontogenetic migration to deeper, low-oxygen waters.

Christine J. Cass; Kendra L. Daly; Stuart G. Wakeham

2014-01-01T23:59:59.000Z

146

Measurements of Saharan Dust in Convective Clouds over the Tropical Eastern Atlantic Ocean  

Science Journals Connector (OSTI)

Mineral dust particles have been shown to act as cloud condensation nuclei, and they are known to interact with developing tropical storms over the Atlantic downwind of the Sahara. Once present within liquid droplets, they have the potential to ...

Cynthia H. Twohy

147

Tropical forest responses to increasing atmospheric CO2: current knowledge and opportunities for future research  

E-Print Network (OSTI)

their representation in Earth system models. Tropical forests play a significant role in the global carbon cycle

Bermingham, Eldredge

148

The Role of the Tropics in Abrupt Climate Changes  

SciTech Connect

Topics addressed include: abrupt climate changes and ocean circulation in the tropics; what controls the ocean thermal structure in the tropics; a permanent El Nińo in paleoclimates; the energetics of the tropical ocean.

Fedorov, Alexey [Yale University] [Yale University

2013-12-07T23:59:59.000Z

149

The Response of Quasigeostrophic Oceanic Vortices to Tropical Cyclone Forcing BENJAMIN JAIMES AND LYNN K. SHAY  

E-Print Network (OSTI)

. Idealized oceanic currents and wind fields derived from observational data acquired during Hurricane Katrina of wind-driven acceleration of oceanic mixed layer (OML) currents rather than a function of the wind anomalies in QG vortices propagate westward with time, deforming the cold wake. Therefore, to accurately

Miami, University of

150

Estimating the Diapycnal Transport Contribution to Warm Water Volume Variations in the Tropical Pacific Ocean  

Science Journals Connector (OSTI)

Variations in the warm water volume (WWV) of the equatorial Pacific Ocean are considered a key element of the dynamics of the El Nińo–Southern 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

151

Sea surface height evidence for long-term warming effects of tropical cyclones on the ocean  

Science Journals Connector (OSTI)

...warming effect by 1 y: with . 1 Price JF ( 1981 ) Upper ocean response...Mechanics Series, ed Perrie W (WIT Press, Southampton, UK), Vol...357 – 374 . 5 Sanford TB Price JF Girton JB ( 2011 ) Upper-ocean...135 ( 12 ): 3990 – 4005 . 9 Price JF Morzel J Niiler PP ( 2008 ) Warming of...

Wei Mei; François Primeau; James C. McWilliams; Claudia Pasquero

2013-01-01T23:59:59.000Z

152

Future Changes in the Western North Pacific Tropical Cyclone Activity Projected by a Multidecadal Simulation with a 16-km Global Atmospheric GCM  

Science Journals Connector (OSTI)

How tropical cyclone (TC) activity in the northwestern Pacific might change in a future climate is assessed using multidecadal Atmospheric Model Intercomparison Project (AMIP)-style and time-slice simulations with the ECMWF Integrated Forecast ...

Julia V. Manganello; Kevin I. Hodges; Brandt Dirmeyer; James L. Kinter III; Benjamin A. Cash; Lawrence Marx; Thomas Jung; Deepthi Achuthavarier; Jennifer M. Adams; Eric L. Altshuler; Bohua Huang; Emilia K. Jin; Peter Towers; Nils Wedi

2014-10-01T23:59:59.000Z

153

A Comparison of Atmospheric Reanalysis Products for the Arctic Ocean and Implications for Uncertainties in Air–Sea Fluxes  

E-Print Network (OSTI)

The uncertainties related to atmospheric fields in the Arctic Ocean from commonly used and recently available reanalysis products are investigated. Fields from the 1) ECMWF Interim Re-Analysis (ERA-Interim), 2) Common ...

Chaudhuri, Ayan H.

154

A Comparison of Atmospheric Reanalysis Surface Products over the Ocean and Implications for Uncertainties in Air–Sea Boundary Forcing  

E-Print Network (OSTI)

This paper investigates the uncertainties related to atmospheric fields from reanalysis products used in forcing ocean models. Four reanalysis products, namely from 1) the interim ECMWF Re-Analysis (ERA-Interim), 2) version ...

Chaudhuri, Ayan H.

155

GFD-2 Spring 2004 Syllabus Text: a nearly complete set of text handouts, plus A.E.Gill, Atmosphere-Ocean Dynamics  

E-Print Network (OSTI)

geography of potential vorticity -lateral circulation: wind-driven ocean gyres and boundary currents -circumpolar ocean currents and the atmospheric westerly winds: stationary Rossby waves with mountains; waveGFD-2 Spring 2004 Syllabus Text: a nearly complete set of text handouts, plus A.E.Gill, Atmosphere-Ocean

156

Acoustic-gravity waves in ocean and atmosphere generated by an underwater source  

Science Journals Connector (OSTI)

Air-water interface becomes anomalously transparent and the power flux in the wave transmitted into the air increases dramatically when a compact sound source in water approaches the interface within a fraction of wavelength [O.A. Godin Phys. Rev. Lett. 97 164301 (2006)]. The anomalous transparency of the ocean-atmosphere interface has important implications for detection of underwater explosions and monitoring of compliance with the Comprehensive Nuclear Test Ban Treaty. At wave frequencies below 0.1 Hz it becomes necessary to take gravity into account. Then fluid buoyancy and compressibility simultaneously serve as restoring forces and mechanical perturbations in the water and in the air propagate as acoustic-gravity waves (AGW). It was previously shown [I. Fuks and O.A. Godin Proc. OCEANS'11 MTS/IEEE Kona HI Sept. 2011] that in the case of a shallow source in an ocean of an infinite depth a sharp peak in the power flux into air appears at frequencies close to a cutoff frequency of about 4mHz of a surfaceacoustic-gravity wave. In this paper we extend these results to the ocean of a finite depth where the AGWs interact with an elastic bottom.

Iosif Fuks; Oleg A. Godin

2012-01-01T23:59:59.000Z

157

Isentropic Slopes, Downgradient Eddy Fluxes, and the Extratropical Atmospheric Circulation Response to Tropical Tropospheric Heating  

E-Print Network (OSTI)

to Tropical Tropospheric Heating AMY H. BUTLER NOAA/NWS/NCEP/Climate Prediction Center, Camp Springs, Maryland of the midlatitude jets and their associated eddy fluxes of heat and potential vorticity (PV). Experiments run latent heating and thus locally enhanced warming in the tropical troposphere. Here the authors provide

158

Comparison of reduced-order, sequential and variational data assimilation methods in the tropical Pacific Ocean  

E-Print Network (OSTI)

This paper presents a comparison of two reduced-order, sequential and variational data assimilation methods: the SEEK filter and the R-4D-Var. A hybridization of the two, combining the variational framework and the sequential evolution of covariance matrices, is also preliminarily investigated and assessed in the same experimental conditions. The comparison is performed using the twin-experiment approach on a model of the Tropical Pacific domain. The assimilated data are simulated temperature profiles at the locations of the TAO/TRITON array moorings. It is shown that, in a quasi-linear regime, both methods produce similarly good results. However the hybrid approach provides slightly better results and thus appears as potentially fruitful. In a more non-linear regime, when Tropical Instability Waves develop, the global nature of the variational approach helps control model dynamics better than the sequential approach of the SEEK filter. This aspect is probably enhanced by the context of the experiments in tha...

Robert, Céline; Verron, Jacques

2006-01-01T23:59:59.000Z

159

The Influence of Solar Forcing on Tropical Circulation School of Marine and Atmospheric Science, Stony Brook University, Stony Brook, New York, and  

E-Print Network (OSTI)

The Influence of Solar Forcing on Tropical Circulation JAE N. LEE School of Marine and Atmospheric Science, Stony Brook University, Stony Brook, New York, and Jet Propulsion Laboratory, California of Marine and Atmospheric Science, Stony Brook University, Stony Brook, New York (Manuscript received 9 June

160

Tropical climate change recorded by a glacier in the central Andes during the last decades of the twentieth  

E-Print Network (OSTI)

Tropical climate change recorded by a glacier in the central Andes during the last decades by analyzing the relationship with ocean- atmosphere dynamics over the tropical Pacific-South American domain of bare ice, which in turn leads to enhanced absorption of solar radiation and thus to increased melt

Vuille, Mathias

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

The depth of the tropical Pacific Ocean's warm surface layer shrank during the last three  

E-Print Network (OSTI)

the ocean's temperature profile stretching back over more than a century. Geophys. Res. Lett. doi:10 of a chemical library for nerve- regenerating drugs. Mehmet Fatih Yanik at the Massachusetts Institute in Providence, Rhode Island, and his colleagues developed a way to load Caenorhabditis elegans worms onto

Yanik, Mehmet Fatih

162

Condensation of Atmospheric Moisture from Tropical Maritime Air Masses as a Freshwater Resource  

Science Journals Connector (OSTI)

...1965 ). Condensation of atmospheric moisture from...whereby potable water may be obtained...system of atmospheric moisture recovery that we propose...of fresh water per day...readily use the atmospheric water recovery method. We...

Robert D. Gerard; J. Lamar Worzel

1967-09-15T23:59:59.000Z

163

Role of Convective Entrainment in Spatial Distributions of and Temporal Variations in Precipitation over Tropical Oceans  

Science Journals Connector (OSTI)

The authors demonstrate that an appropriate treatment of convective entrainment is essential for determining spatial distributions of and temporal variations in precipitation. Four numerical experiments are performed using atmospheric models with ...

Nagio Hirota; Yukari N. Takayabu; Masahiro Watanabe; Masahide Kimoto; Minoru Chikira

2014-12-01T23:59:59.000Z

164

Indian Ocean Warming During 1950–2005 Determined by Flexible Global Ocean–Atmosphere–Land System Model (FGOALS)  

Science Journals Connector (OSTI)

The Indian Ocean has exhibited a basin-wide warming ... effectively reproduced by version 2 of the grid-point and spectral versions of the Flexible Global ... K), respectively. The trend of the Indian Ocean avera...

Lu Dong; Tianjun Zhou

2014-01-01T23:59:59.000Z

165

Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean  

Science Journals Connector (OSTI)

Water-soluble dicarboxylic acids (DCAs), ketoacids, and ?-dicarbonyls in the marine aerosol samples collected over the Southern Ocean and western Pacific Ocean were determined. Oxalic acid was the most ... aeroso...

Haobo Wang; Kimitaka Kawamura; Koji Yamazaki

2006-01-01T23:59:59.000Z

166

The atmospheric ocean: eddies and jets in the Antarctic Circumpolar Current  

Science Journals Connector (OSTI)

...the longest and the strongest current in the ocean carrying a volume transport...the most poorly understood currents in the ocean. The difficulty in obtaining...is dynamically distinct from ocean basin currents. As winds blow over the ocean...

2008-01-01T23:59:59.000Z

167

Low-frequency variability and heat transport in a low-order nonlinear coupled ocean-atmosphere model  

E-Print Network (OSTI)

We formulate and study a low-order nonlinear coupled ocean-atmosphere model with an emphasis on the impact of radiative and heat fluxes and of the frictional coupling between the two components. This model version extends a previous 24-variable version by adding a dynamical equation for the passive advection of temperature in the ocean, together with an energy balance model. The bifurcation analysis and the numerical integration of the model reveal the presence of low-frequency variability (LFV) concentrated on and near a long-periodic, attracting orbit. This orbit combines atmospheric and oceanic modes, and it arises for large values of the meridional gradient of radiative input and of frictional coupling. Chaotic behavior develops around this orbit as it loses its stability; this behavior is still dominated by the LFV on decadal and multi-decadal time scales that is typical of oceanic processes. Atmospheric diagnostics also reveals the presence of predominant low- and high-pressure zones, as well as of a subtropical jet; these features recall realistic climatological properties of the oceanic atmosphere. Finally, a predictability analysis is performed. Once the decadal-scale periodic orbits develop, the coupled system's short-term instabilities --- as measured by its Lyapunov exponents --- are drastically reduced, indicating the ocean's stabilizing role on the atmospheric dynamics. On decadal time scales, the recurrence of the solution in a certain region of the invariant subspace associated with slow modes displays some extended predictability, as reflected by the oscillatory behavior of the error for the atmospheric variables at long lead times.

Stéphane Vannitsem; Jonathan Demaeyer; Lesley De Cruz; Michael Ghil

2014-12-01T23:59:59.000Z

168

Effect of Atlantic Meridional Overturning Circulation Changes on Tropical Coupled Ocean-Atmosphere System  

E-Print Network (OSTI)

..................................................................... 18 B. Datasets and Data Analysis ....................................................... 21 C. Experimental Design ................................................................. 21 D. CCM3-trMOM3 Model Validation... Page Figure 1.1 Temperature records between the Lea et al. (2003) Mg/Ca- SST and the Herbert and Schuffert (2000) Uk?37-SST proxy records in the Cariaco Basin using the published age model in Peterson et al. (2000) (Courtesy of Dr. Matthew W...

Wan, Xiuquan

2010-01-14T23:59:59.000Z

169

Detection of iodine monoxide in the tropical free troposphere  

E-Print Network (OSTI)

19, 2012) Atmospheric iodine monoxide (IO) is a radical that catalytically destroys heat trapping in the remote tropical marine boundary layer (MBL) (2­4). IO further affects the oxidative capacity iodine species over the remote ocean remain poorly understood (11, 14) but are currently thought

170

Acoustic identification of nine delphinid species in the eastern tropical Pacific Ocean  

Science Journals Connector (OSTI)

Acoustic techniques have the potential to increase the reliability of cetacean species identification during shipboard surveys. The whistles of nine odontocete species were compared using data collected from a towed array and sonobuoys deployed during dolphin abundance surveys in the eastern tropical Pacific. Twelve variables were measured manually from spectrographic displays of each whistle (n=912). Multivariate discriminant function analysis (DFA) resulted in 49.9% of whistles being classified to the correct species. It was hypothesized that some whistles carry less species?specific information than others therefore groups of five whistles were averaged to reduce the effect of these ambiguous whistles. Correct classification increased to 65.4% when DFA was run on the averaged data set. A species identification decision tree that used 7 of the 12 whistle variables was constructed using nonparametric techniques (classification and regression trees) and resulted in 53.1% correct classification when applied to the original data set. Prior probabilities were added to the decision tree based on sighting rates for each species in the study area resulting in 56.7% correct classification. The species identification decision tree provides a relatively simple acoustic method that can be used to augment conventional visual techniques.

2000-01-01T23:59:59.000Z

171

Response of a coupled ocean-ice-atmosphere model to data assimilation in the tropical zone of the Pacific Ocean  

Science Journals Connector (OSTI)

This paper deals with numerical experiments based on the coupled ECHAM-HOPE model. The results of experiments are analyzed. The initial fields for the calculations over time periods from one month to one year ...

K. P. Belyaev; N. P. Tuchkova; U. Cubash

2010-06-01T23:59:59.000Z

172

Decadal Modulations of the Indian Ocean Dipole in the SINTEX-F1 Coupled GCM  

Science Journals Connector (OSTI)

The decadal variation in the tropical Indian Ocean is investigated using outputs from a 200-yr integration of the Scale Interaction Experiment-Frontier Research Center for Global Change (SINTEX-F1) ocean–atmosphere coupled model. The first EOF ...

Tomoki Tozuka; Jing-Jia Luo; Sebastien Masson; Toshio Yamagata

2007-07-01T23:59:59.000Z

173

Air-sea interactions during the passage of a winter storm over the Gulf Stream: A three-dimensional coupled atmosphere-ocean model study  

E-Print Network (OSTI)

the surface currents in the Gulf Stream and generate southwestward flows on the shelf. The oceanic feedback% weaker. Differences in the surface ocean currents between these two experiments are significant-dimensional coupled atmosphere-ocean model study Yongping Li1 and Huijie Xue School of Marine Sciences, University

Maine, University of

174

Impacts of Pacific and Indian Ocean Coupling on Wintertime Tropical Intraseasonal Oscillation: A Basin-Coupling CGCM Study  

E-Print Network (OSTI)

the central Indian and Pacific oceans. We notice from FigureIP) Run, (c) the Pacific Ocean (PO) Run, and (d) the Indiantropical Indian and Pacific Oceans. Journal of Climate 10:

Weng, Shu-Ping; Yu, Jin-Yi

2010-01-01T23:59:59.000Z

175

Energy Transport by Nonlinear Internal Waves College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon  

E-Print Network (OSTI)

Energy Transport by Nonlinear Internal Waves J. N. MOUM College of Oceanic and Atmospheric Sciences in the bottom bound- ary layer. In the nonlinear internal waves that were observed, the kinetic energy. The energy transported by these waves includes a nonlinear advection term uE that is negligible in linear

Kurapov, Alexander

176

Distribution of glycerol ether lipids in the oxygen minimum zone of the Eastern Tropical North Pacific Ocean  

Science Journals Connector (OSTI)

Abstract The distributions of microbial glycerol ether lipids in suspended particulate matter in the oxygen minimum zone (OMZ) of the Eastern Tropical North Pacific Ocean (ETNP) were investigated. Nine groups of glycerol ether core lipids were detected and quantified: isoprenoid glycerol dialkyl glycerol tetraethers (GDGTs) (iso-GDGTs), isoprenoid glycerol dialkanol diethers (iso-GDDs) and hydroxylated isoprenoid \\{GDGTs\\} and \\{GDDs\\} (OH-GDGTs and OH-GDDs) of archaeal origin; branched glycerol dialkyl glycerol tetraethers (br-GDGTs) of bacterial origin and overly branched \\{GDGTs\\} (OB-GDGTs), sparsely branched \\{GDGTs\\} (SB-GDGTs), hybrid isoprenoid/branched \\{GDGTs\\} (IB-GDGTs) and a tentatively assigned H-shaped GDGT (H-1020) of unknown biological origin. The archaeal iso-GDGTs were the most abundant core lipids (89% of total), followed by iso-GDDs (4%), br-GDGTs (2%) and OH-GDGTs (1%). Archaeal intact polar \\{GDGTs\\} (IP GDGTs), including both mono- and diglycosidic iso-GDGTs, had depth profiles similar to OH-GDGTs and OH-GDDs, with a maximum concentration in the upper OMZ and secondary peaks in the mid and lower OMZ, suggesting similar but multiple planktonic sources. Core lipids of iso-GDGTs and other glycerol ethers showed deviating concentration profiles compared with IP \\{GDGTs\\} and OH-GDGTs and were most abundant in the mid OMZ. This is the first report of OH-GDDs, OB-GDGTs, SB-GDGTs, IB-GDGTs and H-1020 in the marine water column and the distribution patterns of these “orphan lipids” suggest that anaerobic planktonic microbes are their main source.

Sitan Xie; Xiao-Lei Liu; Florence Schubotz; Stuart G. Wakeham; Kai-Uwe Hinrichs

2014-01-01T23:59:59.000Z

177

A Characterization of Tropical Transient Activity in the CAM3 Atmospheric Hydrologic Cycle  

E-Print Network (OSTI)

. Boville1 , Brian Eaton1 , James J. Hack1 National Center for Atmospheric Research5 Printed: January 2 lengths. Longer time scale features are12 discussed in Boville et al. (2004) and Hack et al. (2004

Wood, Robert

178

A Characterization of Tropical Transient Activity in the CAM3 Atmospheric Hydrologic Cycle  

E-Print Network (OSTI)

. BOVILLE,* BRIAN EATON,* AND JAMES J. HACK* *National Center for Atmospheric Research,& Boulder, Colorado. Longer time-scale features are discussed in Boville et al. (2006) and Hack et al. (2006b). The shorter

Dai, Aiguo

179

A numerical study of mesoscale convection in a rotating tropical atmosphere  

E-Print Network (OSTI)

similar to the profile of a tropical disturbance. The meso-p forcing of convection consisted of' seven temperature perturbations con- fined below 2. 4 km at intervals of 8 km out to 60 km. The meso-9 forcing of convection comprised of a cosine thermal... perturbation field out to 75 km. Two different classes of simulations were performed. The first part explored how background vorticity affects convection generated by meso-7 and meso-9 forcing. The second part investigated how meso-9 forcing of convection...

Fitzpatrick, Patrick James

1992-01-01T23:59:59.000Z

180

Multiscale dynamics of atmospheric and oceanic variability in the climate system  

E-Print Network (OSTI)

Filtering) for Numerical Weather Prediction models wereNumerical Weather Prediction (NWP) in meteorology, caused ocean models

Subramanian, Aneesh C.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model  

E-Print Network (OSTI)

Biogeosciences, 6, 2099–2120, 2009 www.biogeosciences.net/6/2099/2009/ © Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Biogeosciences Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks.... Inclusion of fundamental ecological interactions between carbon and nitrogen cycles in the land component of an atmosphere-ocean general circulation model (AOGCM) leads to decreased carbon uptake associated with CO2 fertil- ization, and increased carbon...

Thornton, P. E.; Doney, S. C.; Lindsay, Keith; Moore, J. K.; Mahowald, N. M.; Randerson, J. T.; Fung, I.; Lamarque, J. F.; Feddema, Johannes J.

2009-01-01T23:59:59.000Z

182

Predictability of the Barents Sea ice in early winter: Remote effects of oceanic and atmospheric thermal conditions from the North Atlantic  

Science Journals Connector (OSTI)

Predictability of sea ice concentrations (SICs) in the Barents Sea in early winter (November–December) is studied using canonical correlation analysis with atmospheric and ocean anomalies from the NCEP Climate Forecast System Reanalysis (NCEP-CFSR)...

Takuya Nakanowatari; Kazutoshi Sato; Jun Inoue

183

Transient Response of the Hadley Centre Coupled Ocean-Atmosphere Model to Increasing Carbon Dioxide. Part 1: Control Climate and Flux Adjustment  

Science Journals Connector (OSTI)

This paper describes the initialization of an experiment to study the time-dependent response of a high-resolution global coupled ocean-atmosphere general circulation model to a gradual increase in carbon dioxide. The stability of the control ...

J. M. Murphy

1995-01-01T23:59:59.000Z

184

Control of Decadal and Bidecadal Climate Variability in the Tropical Pacific by the Off-Equatorial South Pacific Ocean  

Science Journals Connector (OSTI)

Delayed negative feedback processes determining intrinsic decadal and bidecadal time scales for the tropical variability in the Pacific are investigated based on climate model experiments. By comparing a control run driven by preindustrial forcing ...

Hiroaki Tatebe; Yukiko Imada; Masato Mori; Masahide Kimoto; Hiroyasu Hasumi

2013-09-01T23:59:59.000Z

185

Oil Spill Clarifies Road Map for Sea Turtle Recovery By Jane Lubchenco, Ph.D., under secretary for oceans and atmosphere and NOAA  

E-Print Network (OSTI)

Oil Spill Clarifies Road Map for Sea Turtle Recovery By Jane Lubchenco, Ph.D., under secretary for oceans and atmosphere and NOAA Administrator Sea turtles have roamed the oceans for millennia their populations to dangerously low levels. Some, such as Kemp's ridley sea turtles, were beginning to make

186

Observations of Upper Ocean Currents at DOMES Sites A,B, and C in the Tropical Central North Pacific Ocean During 1975 and 1976  

Science Journals Connector (OSTI)

The time and space (vertical) scales of the upper ocean current field are described from moored current measurements made at 20 m, 50 m ... C was within the westward-flowing North Equatorial Current. At Sites A a...

David Halpern

1979-01-01T23:59:59.000Z

187

Shelf edge reflection of atmospherically generated long ocean waves along the central U.S. East Coast  

Science Journals Connector (OSTI)

Abstract This paper describes an investigation of unusual large-amplitude high­frequency sea level events (?40–60 cm) observed during the period 2006–2012 along the central U.S. East Coast. These events occurred 2–3 h after offshore propagating atmospheric pressure disturbances crossed the coastline. The large amplitudes of the oscillations may be explained by Proudman resonance, as the average speed of the atmospheric pressure disturbances, estimated to be between 16 and 25 m/s, was similar to the shallow-water wave speed over the shelf, ?15–20 m/s. The observed lag of 2–3 h of the events can be explained by shoreward-propagating free waves generated as the atmospheric-forced waves crossed the shelf edge. The estimated pathways of the forced and reflected free ocean waves seem to have been coherent and in good agreement with the lag observed at tide gauge stations.

S. Pasquet; I. Vilibi?

2013-01-01T23:59:59.000Z

188

Transient Response of the Hadley Centre Coupled Ocean-Atmosphere Model to Increasing Carbon Dioxide. Part II: Spatial and Temporal Structure of Response  

Science Journals Connector (OSTI)

A high-resolution (2.75° lat × ° 3.75° long) coupled ocean-atmosphere model has been used to simulate the transient response of climate to a gradual increase in atmospheric carbon dioxide concentrations. Although the radiative forcing increases ...

J. M. Murphy; J. F. B. Mitchell

1995-01-01T23:59:59.000Z

189

Role of Diurnal Warm Layers in the Diurnal Cycle of Convection over the Tropical Indian Ocean during MISMO  

Science Journals Connector (OSTI)

The role of air–sea interaction in the diurnal variations of convective activity during the suppressed and developing stages of an intraseasonal convective event is analyzed using in situ observations from the Mirai Indian Ocean cruise for the ...

H. Bellenger; Y. N. Takayabu; T. Ushiyama; K. Yoneyama

2010-06-01T23:59:59.000Z

190

Persistent Organic Pollutants in the Equatorial Atmosphere over the Open Indian Ocean  

Science Journals Connector (OSTI)

Due to a 30% decline in the power of the air sampler, it was replaced by a 220-V AC H8400TE air sampler with a variable flow rate and a thermally protected motor for onward sample collection. ... Samples collected at Stations S1 and S2 originated from the northern and eastern coastal regions of Australia, but those collected at Station S3 and S5 are oceanic in origin, crossing the open ocean for 5 days prior to sampling. ... Concns. of organochlorines such as hexachlorocyclohexanes (HCHs), DDTs, chlordanes, and PCBs were detd. in the air and surface water from various oceans in 1989-1990, to study their recent distribution and the function of the ocean in the long-range atm. ...

Oliver Wurl; John Robert Potter; Jeffrey Philip Obbard; Caroline Durville

2006-01-21T23:59:59.000Z

191

E-Print Network 3.0 - atmosphere-sea ice-ocean system Sample...  

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

sphere-sea-ice-ocean... .01.015 12;are included within the latest generation of Earth System Models in order to allow more direct... for Space Studies and Center for Climate...

192

Exploring the Texture of Ocean-Atmosphere Redox Evolution on the Early Earth  

E-Print Network (OSTI)

northeastern Baltic Shield. Earth Sci Rev 36:205- 241. B81.Earth.DC, Claire MW (2005) How Earth’s atmosphere evolved to an

Reinhard, Christopher Thomas

2012-01-01T23:59:59.000Z

193

Alkyl nitrate (C1-C3) depth profiles in the tropical Pacific Ocean E. E. Dahl,1,2  

E-Print Network (OSTI)

and distribution of tropo- spheric ozone. Atmospheric alkyl nitrates are normally associated with polluted air free radical processes initiated by radioactive decay or cosmic rays, enzymatically mediated reactions expedition in the equatorial Pacific, an equatorial maximum in atmospheric ethyl and isopropyl nitrate

Saltzman, Eric

194

Impact of anthropogenic atmospheric nitrogen and sulfur deposition on ocean acidification  

E-Print Network (OSTI)

, fossil fuel combustion and biomass burning fluxes of NOx exceed the natural fluxes from land of combustion of fossil fuels and biomass burning (2). After chemical transformations in the atmosphere, much March 9, 2007) Fossil fuel combustion and agriculture result in atmospheric dep- osition of 0.8 Tmol

Mahowald, Natalie

195

A multi-resolution ensemble study of a tropical urban environment and its interactions with the background regional atmosphere  

E-Print Network (OSTI)

This study employed the Weather Research and Forecasting model with a single-layer urban canopy model to investigate the urban environment of a tropical city, Singapore. The coupled model was evaluated against available ...

Li, Xian-Xiang

196

Carbohydrate-like composition of submicron atmospheric particles and their production from ocean bubble bursting  

Science Journals Connector (OSTI)

...in one or two fossil fuel combustion factors, which were dominated...and the turbulent air-sea heat fluxes. J GeophysRes...for smoke from incomplete combustion. Appl Geochem 17(3...Measurements of non-methane hydrocarbons, DOC in surface ocean waters...

Lynn M. Russell; Lelia N. Hawkins; Amanda A. Frossard; Patricia K. Quinn; Tim S. Bates

2010-01-01T23:59:59.000Z

197

Frigatebird behaviour at the ocean–atmosphere interface: integrating animal behaviour with multi-satellite data  

Science Journals Connector (OSTI)

...animal behaviour with multi-satellite data Silvia De Monte 1 2 3...nonlinear analysis of multi-satellite data. We find that frigatebirds...often referred to as the ocean weather and covers the mesoscale and...related to phytoplankton. Satellite, in situ and model data show...

2012-01-01T23:59:59.000Z

198

Transient response of the Hadley Centre coupled ocean-atmosphere model to increasing carbon dioxide. Part I: Control climate and flux adjustment  

SciTech Connect

This paper describes the initialization of an experiment to study the time-dependent response of a high-resolution global coupled ocean-atmosphere general circulation model to a gradual increase in carbon dioxide. The stability of the control integration with respect to climate drift is assessed, and aspects of the model climatology relevant to the simulation of climate change are discussed. The observed variation of oceanic temperature with latitude and depth is basically well simulated, although, in common with other ocean models, the main thermocline is too diffuse. Nevertheless, it is found that large heat and water flux adjustments must be added to the surface layer of the ocean in order to prevent the occurrence of unacceptable climate drift. The ocean model appears to achieve insufficient meridional heat transport, and this is supported by the pattern of the heat flux adjustment term, although errors in the simulated atmosphere-ocean heat flux also contribute to the latter. The application of the flux adjustments restricts climate drift during the 75-year control experiment. However, a gradual warming still occurs in the surface layers of the Southern Ocean because the flux adjustments are inserted as additive terms in this integration and cannot therefore be guaranteed to prevent climate drift completely. 68 refs., 29 figs., 1 tab.

Murphy, J.M. [Hadley Centre for Climate Prediction and Research, Bracknell (United Kingdom)] [Hadley Centre for Climate Prediction and Research, Bracknell (United Kingdom)

1995-01-01T23:59:59.000Z

199

On a revised ocean-atmosphere physical coupling interface and about technical coupling software  

E-Print Network (OSTI)

linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere constraints of Earth System Models (ESMs) as a whole and each component individually, including laws

200

Changes in fishing power and fishing strategies driven by new technologies: The case of tropical tuna purse seiners in the eastern Atlantic Ocean  

Science Journals Connector (OSTI)

Abstract Technological advancements can influence both the fishing power of a fleet and the fishing strategies it employs. To investigate these potential linkages, we examined almost three decades of data (1981–2008) from French tropical tuna purse seiners operating in the eastern Atlantic Ocean. Applying a sequence of statistical methods at different temporal and spatial scales, we analyzed two indicators of fishing power (sets per boat-day on fish aggregating devices (FADs) and sets per boat-day on free-swimming schools) each of which represent a distinct fishing mode. Our results show that the increasing modernization of this fleet has led to increases in both fishing power and the available number of fishing strategies to choose from. A key output of this analysis was the breakdown of fishing power time series (for each fishing mode) into separate periods of continuous years during which catchability was assumed to be constant, thus identifying regime shifts. This partitioning allowed us to identify when key changes occurred in the fishery. Changes in FAD-associated fishing were mostly driven by the introduction of radio beacons (early 1990s) which lead to an increase in fishing effort and an expansion of fishing grounds (direct effect) and the implementation of time-area management measures which resulted in a fragmentation of the traditional fishing grounds in the 2000s (indirect effect). During the same period, fishing on free-swimming schools also increased despite the biomass of stocks decreasing and fishing grounds remaining unchanged. This suggests these increases were driven by improvements in fish detection technology (e.g., bird radars, sonar). These identified increases are not entirely unexpected: indeed it is widely recognized that fishing power in the purse seine tuna fishery has increased over time. However, these increases do not necessarily occur linearly. Thus, understanding how fishing power is changing over time (such as determining when regime shifts occur) is critical to improving the CPUE standardization procedure in tropical tuna purse seine fisheries.

Edgar Torres-Irineo; Daniel Gaertner; Emmanuel Chassot; Michel Dreyfus-León

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

ARM - Lesson Plans: Ocean Currents  

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

Ocean Currents Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global...

202

Ecotoxicology of tropical marine ecosystems  

SciTech Connect

The negative effects of chemical contaminants on tropical marine ecosystems are of increasing concern as human populations expand adjacent to these communities. Watershed streams and ground water carry a variety of chemicals from agricultural, industrial, and domestic activities, while winds and currents transport pollutants from atmospheric and oceanic sources to these coastal ecosystems. The implications of the limited information available on impacts of chemical stressors on mangrove forests, seagrass meadows, and coral reefs are discussed in the context of ecosystem management and ecological risk assessment. Three classes of pollutants have received attention: heavy metals, petroleum, and synthetic organics. Heavy metals have been detected in all three ecosystems, causing physiological stress, reduced reproductive success, and outright mortality in associated invertebrates and fishes. Oil spills have been responsible for the destruction of entire coastal shallow-water communities, with recovery requiring years. Herbicides are particularly detrimental to mangroves and seagrasses and adversely affect the animal-algal symbioses in corals. Pesticides interfere with chemical cues responsible for key biological processes, including reproduction and recruitment of a variety of organisms. Information is lacking with regard to long-term recovery, indicator species, and biomarkers for tropical communities. Critical areas that are beginning to be addressed include the development of appropriate benchmarks for risk assessment, baseline monitoring criteria, and effective management strategies to protect tropical marine ecosystems in the face of mounting anthropogenic disturbance.

Peters, E.C. [Tetra Tech, Inc., Fairfax, VA (United States); Gassman, N.J.; Firman, J.C. [Univ. of Miami, FL (United States). Rosenstiel School of Marine and Atmospheric Science; Richmond, R.H. [Univ. of Guam, Mangilao (Guam). Marine Lab.; Power, E.A. [EVS Environment Consultants, Ltd., North Vancouver, British Columbia (Canada)

1997-01-01T23:59:59.000Z

203

Vertical profiles of radar reflectivity of convective cells in tropical and mid-latitude mesoscale convective systems  

E-Print Network (OSTI)

of tropical oceanic and tropical continental MCSs during the monsoon wet seasons of 1987/1988 and 1988/1989. The atmospheric structure, particularly the CAPE and low level vertical wind shear for all the MCS events studied is analyzed to help... lectivity, at a height of 1. 9 km, of the 68 72 2 December 1988 tropical monsoon case at 0542 LT . . 74 36 37 38 As in Fig. 35, except at 0609 LT Time series of zonal wind and CAPE at Darwin during the 1988/1989 monsoon wet season. Contour plot...

Lutz, Kurt Reed

2012-06-07T23:59:59.000Z

204

Ice at the Interface: Atmosphere-Ice-Ocean Boundary Layer Processes and Their Role in Polar Change---Workshop Report  

SciTech Connect

The atmosphere-ocean boundary layer in which sea ice resides includes many complex processes that require a more realistic treatment in GCMs, particularly as models move toward full earth system descriptions. The primary purpose of the workshop was to define and discuss such coupled processes from observational and modeling points of view, including insight from both the Arctic and Antarctic systems. The workshop met each of its overarching goals, including fostering collaboration among experimentalists, theorists and modelers, proposing modeling strategies, and ascertaining data availability and needs. Several scientific themes emerged from the workshop, such as the importance of episodic or extreme events, precipitation, stratification above and below the ice, and the marginal ice zone, whose seasonal Arctic migrations now traverse more territory than in the past.

Hunke, Elizabeth C. [Los Alamos National Laboratory

2012-07-23T23:59:59.000Z

205

A New Method to Produce Sea Surface Temperature Using Satellite Data Assimilation into an AtmosphereOcean Mixed Layer Coupled Model  

E-Print Network (OSTI)

A New Method to Produce Sea Surface Temperature Using Satellite Data Assimilation method of producing sea surface temperature (SST) data for numerical weather prediction is sug- gested, which is obtained from the assimilation of satellite-derived SST into an atmosphere­ocean mixed layer

Noh, Yign

206

K. SHAFER SMITH AND ROSS TULLOCH Center for Atmosphere Ocean Science, Courant Institute of Mathematical Sciences, New York University, New York, New York  

E-Print Network (OSTI)

Reply K. SHAFER SMITH AND ROSS TULLOCH Center for Atmosphere Ocean Science, Courant Institute). Tulloch and Smith (2006, 2009) argued that sur- face quasigeostrophic effects are consistent with many, Tulloch and Smith (2006) considered a ``toy'' model consisting of SQG flow overlying a finite-depth region

Smith, K. Shafer

207

Ocean Acidification  

Science Journals Connector (OSTI)

Ocean Acidification ... The first assignment I give my students in Environmental Modeling class is to calculate the mass of the oceans versus the mass of the atmosphere and the “living” soil. ... As a young chemical engineer in the early 1970s, I remember discussing the horrors of sulfur and particulate pollution from steel mills, smelters, and power plants. ...

Jerald L. Schnoor

2013-11-05T23:59:59.000Z

208

Tropical Western Pacific CART Site  

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

climate: the Tropical Western Pacific (TWP) CART site, along the equator in the western Pacific Ocean. The TWP locale lies between 10 degrees North latitude and 10 degrees South...

209

Toward self-describing and workflow integrated Earth system models: A coupled atmosphere-ocean modeling system application  

Science Journals Connector (OSTI)

The complexity of Earth system models and their applications is increasing as a consequence of scientific advances, user demand, and the ongoing development of computing platforms, storage systems and distributed high-resolution observation networks. Multi-component Earth system models need to be redesigned to make interactions among model components and other applications external to the modeling system easier. To that end, the common component interfaces of Earth system models can be redesigned to increase interoperability between models and other applications such as various web services, data portals and science gateways. The models can be made self-describing so that the many configuration, build options and inputs of a simulation can be recorded. In this paper, we present a coupled modeling system that includes the proposed methodology to create self-describing models with common model component interfaces. The designed coupled atmosphere-ocean modeling system is also integrated into a scientific workflow system to simplify routine modeling tasks and relationships between these tasks and to demonstrate the enhanced interoperability between different technologies and components. Later on, the work environment is tested using a realistic Earth system modeling application. As can be seen through this example, a layered design for collecting provenance and metadata has the added benefit of documenting a run in far greater detail than before. In this way, it facilitates exploration and understanding of simulations and leads to possible reproducibility. In addition to designing self-describing Earth system models, the regular modeling tasks are also simplified and automated by using a scientific workflow which provides meaningful abstractions for the model, computing environment and provenance/metadata collection mechanisms. Our aim here is to solve a specific instance of a complex model integration problem by using a framework and scientific workflow approach together. The reader may also note that the methods presented in this paper might be also generalized to other types of Earth system models, leading to improved ease of use and flexibility. The initial results also show that the coupled atmosphere-ocean model, which is controlled by the designed workflow environment, is able to reproduce the Mediterranean Sea surface temperature when it is compared with the used CCSM3 initial and boundary conditions.

Ufuk Utku Turuncoglu; Nuzhet Dalfes; Sylvia Murphy; Cecelia DeLuca

2013-01-01T23:59:59.000Z

210

Impacts of the Indian Ocean on the ENSO cycle Jin-Yi Yu, Carlos R. Mechoso, James C. McWilliams, and Akio Arakawa  

E-Print Network (OSTI)

, the ocean model domain includes only the tropical Pacific Ocean (the Pacific Run). In the other experiment, the ocean model domain includes both the Indian and tropical Pacific Oceans (the Indo-Pacific Run Oceans tends to be more realistic than that including the tropical Pacific Ocean only. In particular

Yu, Jin-Yi

211

Factors Affecting the Occurrence and Transport of Atmospheric Organochlorines in the China Sea and the Northern Indian and South East Atlantic Oceans  

Science Journals Connector (OSTI)

BT analysis (Figure 1) for each sample shows that for samples collected in the Atlantic and Indian Ocean, air masses were predominantly oceanic (defined as air that has been away from the land for 3 days), whereas for the samples collected in the East and South China Seas, the Bay of Bengal and the Andaman Sea air masses were partly continental (northeast China, Bangladesh, Northeast part of India and Philippines) and partly oceanic (Figure 1). ... t is the estimated travel time needed for atmospheric transport from one sampling point to the other using the measured relative wind speed and relative wind direction (see SI Figure SI.3 for an example of the graphical derivation of k). ... NA = not available because there were no sampling points that satisfied the criteria of having the same air mass travelling over these locations. ...

Rosalinda Gioia; Jun Li; Jasmin Schuster; Yanlin Zhang; Gan Zhang; Xiangdong Li; Baruch Spiro; Ravinder S. Bhatia; Jordi Dachs; Kevin C. Jones

2012-08-08T23:59:59.000Z

212

The distinct behaviors of Pacific and Indian Ocean warm pool properties on seasonal and interannual time scales  

E-Print Network (OSTI)

the tropical Indian and Pacific Ocean regions, Mon. WeatherIndian Ocean and in the Pacific Ocean, J. Ocean Univ. China,KIM ET AL. : PACIFIC AND INDIAN OCEAN WARM POOL Rayner, N.

Kim, Seon Tae; Yu, Jin-Yi; Lu, Mong-Ming

2012-01-01T23:59:59.000Z

213

Causes of ocean currents  

Science Journals Connector (OSTI)

In the foregoing analysis of the ocean and the atmosphere as two interacting subsystems, we have identified two major energy inputs into the ocean. These are the wind stress over the sea surface and heat fluxe...

David Tolmazin

1985-01-01T23:59:59.000Z

214

ARM - Atmospheric Heat Budget  

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

ListAtmospheric Heat Budget Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About...

215

JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES, VOL. 118, 96909707, doi:10.1002/jgrd.50781, 2013 Gravity waves generated by deep tropical convection: Estimates  

E-Print Network (OSTI)

in the Tropics are studied by analyzing in situ measurements from long-duration stratospheric balloons launched

Plougonven, Riwal

216

The Pacific Ocean’s Acidification Laboratory  

Science Journals Connector (OSTI)

The Pacific Ocean’s Acidification Laboratory ... Five years ago, at the quadrennial International Coral Reef Symposium in Okinawa, Japan, a poll of the scientists and resource managers present ranked ocean acidification 38th out of a list of 39 possible threats facing reefs, recalls Rusty Brainard, head of the National Oceanic and Atmospheric Administration’s (NOAA’s) Coral Reef Ecosystem Division. ... As the oceans absorb CO2 from the atmosphere at the rate of one million tons per hour, the pH of the water is changing. ...

Christopher Pala

2009-08-05T23:59:59.000Z

217

Northerly surface wind events over the eastern North Pacific Ocean : spatial distribution, seasonality, atmospheric circulation, and forcing  

E-Print Network (OSTI)

ECMWF and NCEP numerical weather prediction models, Mon.atmospheric numerical weather prediction model. The

Taylor, Stephen V.

2006-01-01T23:59:59.000Z

218

Carbon-nitrogen interactions regulate climate-carbon cycle feedbacks: results from an atmosphere-ocean general circulation model  

E-Print Network (OSTI)

2009 P. E. Thornton et al. : Carbon-nitrogen interactionsregulate climate-carbon cycle feedbacks Monfray, P. ,T. H. : A global ocean carbon climatology: Results from

2009-01-01T23:59:59.000Z

219

Ocean Circulation Lynne D Talley  

E-Print Network (OSTI)

to the topography, with low pressure in the center. Ocean currents transport heat from the tropics to the poles have gone to sea. As knowledge about ocean currents and capabilities to observe it below the surfaceOcean Circulation Lynne D Talley Volume 1, The Earth system: physical and chemical dimensions

Talley, Lynne D.

220

Transient response of the Hadley Centre coupled ocean-atmosphere model to increasing carbon dioxide. Part II: Spatial and temporal structure of response  

SciTech Connect

A high-resolution (2.75{degrees} lat x 3.75{degrees} long) coupled ocean-atmosphere model has been used to simulate the transient response of climate to a gradual increase in atmospheric carbon dioxide concentrations. Although the radiative forcing increases linearly, there is a delay of about 30 yr before the ocean warms appreciably. This {open_quotes}cold start{close_quotes} is, at least partly, an artifact of the experimental design. At the time of doubling (after 70 yr), the patterns of change are similar to those found in comparable studies of the equilibrium response, except in the high latitudes of the Southern Ocean and the North Atlantic, where the warming is considerably reduced. The mechanisms leading to this reduction are discussed. After two to three decades, the pattern of warming is well established. The warming over land is substantially larger than that over the sea, with a consequent lowering of surface pressure over the northern continents in summer. The patterns of changes in precipitation and soil moisture take longer to establish themselves, although locally there are consistent changes after the third decade. 55 refs., 30 figs., 6 tabs.

Murphy, J.M.; Mitchell, J.F.B. [Hadley Centre for Climate Prediction and Research, Berkshire (United Kingdom)] [Hadley Centre for Climate Prediction and Research, Berkshire (United Kingdom)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Effect of Atlantic Meridional Overturning Circulation Changes on Tropical Atlantic Sea Surface Temperature Variability: A 2˝-Layer Reduced-Gravity Ocean Model Study  

Science Journals Connector (OSTI)

Previous coupled climate model simulations reveal that a dipole-like SST pattern with cooler (warmer) temperature over the north (south) tropical Atlantic emerges in response to a slowdown of the Atlantic meridional overturning circulation (AMOC)...

Caihong Wen; Ping Chang; Ramalingam Saravanan

2010-01-01T23:59:59.000Z

222

Remote Sensing of the Atmosphere and Ocean (11:670:451/16:712:552) Class website: Sakai  

E-Print Network (OSTI)

and Oceanic Science. 2) Develop specific understanding of the radar and satellite remote sensors used to conduct a weather discussion of mesoscale and synoptic weather systems, and ocean state. 3) Develop and Scattering M. Miller Wind Profiler Radars M. Miller No Class J. Wilkin Weather Radar M. Miller Weather Radar

223

E-Print Network 3.0 - atmospheric administration key Sample Search...  

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

Oceanic and Atmospheric Administration (NOAA) proposal (south Florida) and that such seafood... for Oceans and Atmosphere and Administrator ... Source: National Oceanic and...

224

NATIONAL OCEANIC AND ATMOSPHERIC  

E-Print Network (OSTI)

, the discovery has implications for future shipping in the region. Census of Arctic Marine Life #12;Recent (2005 Antarctic Marine Living Resource Survey 6 Short-term Arctic Predictability 7 Advances in Satellite Products's Data, Information for IPY 11 NOAA's Change Detection Strategy 12 Decision support for increasing

Kuligowski, Bob

225

Sensitivity of global tropical climate to land surface processes: Mean state and interannual variability  

SciTech Connect

This study examines the sensitivity of global tropical climate to land surface processes (LSP) using an atmospheric general circulation model both uncoupled (with prescribed SSTs) and coupled to an oceanic general circulation model. The emphasis is on the interactive soil moisture and vegetation biophysical processes, which have first order influence on the surface energy and water budgets. The sensitivity to those processes is represented by the differences between model simulations, in which two land surface schemes are considered: 1) a simple land scheme that specifies surface albedo and soil moisture availability, and 2) the Simplified Simple Biosphere Model (SSiB), which allows for consideration of interactive soil moisture and vegetation biophysical process. Observational datasets are also employed to assess the reality of model-revealed sensitivity. The mean state sensitivity to different LSP is stronger in the coupled mode, especially in the tropical Pacific. Furthermore, seasonal cycle of SSTs in the equatorial Pacific, as well as ENSO frequency, amplitude, and locking to the seasonal cycle of SSTs are significantly modified and more realistic with SSiB. This outstanding sensitivity of the atmosphere-ocean system develops through changes in the intensity of equatorial Pacific trades modified by convection over land. Our results further demonstrate that the direct impact of land-atmosphere interactions on the tropical climate is modified by feedbacks associated with perturbed oceanic conditions ("indirect effect" of LSP). The magnitude of such indirect effect is strong enough to suggest that comprehensive studies on the importance of LSP on the global climate have to be made in a system that allows for atmosphere-ocean interactions.

Ma, Hsi-Yen; Xiao, Heng; Mechoso, C. R.; Xue, Yongkang

2013-03-01T23:59:59.000Z

226

Remote Sensing Observations from MTI Satellites and GMS Over Tropical Island of Nauru  

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

Remote Sensing Observations from MTI Satellites and Remote Sensing Observations from MTI Satellites and GMS Over Tropical Island of Nauru W. M. Porch, P. Chylek, and B. Henderson Los Alamos National Laboratory Los Alamos, New Mexico Introduction The observations of island cloud trails have revealed a strong relationship between the character and frequency of occurrence of island cloud trails and the Tropical Ocean Southern Oscillation (MacFarlane et al. 2004 a, b). Island cloud trails from the U.S. Department of Energy's (DOE) Atmospheric and Radiation Measurement (ARM) facility of Nauru persist for more than 50 km (Nordeen et al. 2001) and resemble ship trail clouds found in the Eastern Ocean Margins (Porch et al. 1999). Island trail clouds are much more frequently observed during La Niña periods than El Niño periods (Figure 1). This

227

MET 600: Advanced Atmospheric Dynamics Air-sea interface  

E-Print Network (OSTI)

the atmosphere-ocean-land system is driven? #12;Upper-Ocean Currents How the atmosphere-ocean-land system/Salinity/Mass/Momentum Conservations #12; How the atmosphere-ocean-land system is driven? It is the sun that sustains all living beings on earth #12;Energy Conservation: Global Radiation Balance How the atmosphere-ocean-land system is driven

Fu, Joshua Xiouhua

228

Atmospheric three-dimensional inverse modeling of regional industrial emissions and global oceanic uptake of carbon tetrachloride  

E-Print Network (OSTI)

Carbon tetrachloride (CCl4) has substantial stratospheric ozone depletion potential and its consumption is controlled under the Montreal Protocol and its amendments. We implement a Kalman filter using atmospheric CCl4 ...

Xiao, X.

229

The relative roles of the ocean and atmosphere as revealed by buoy air-sea observations in hurricanes  

Science Journals Connector (OSTI)

Results from this multi-hurricane study suggest that the criticality of the oft-cited 26°C hurricane threshold linked to hurricane maintenance may be more closely associated with atmospheric thermodynamic conditions within the inner core than ...

Joseph J. Cione

230

A Community Atmosphere Model with Superparameterized Clouds  

SciTech Connect

In 1999, National Center for Atmospheric Research (NCAR) scientists Wojciech Grabowski and Piotr Smolarkiewicz created a "multiscale" atmospheric model in which the physical processes associated with clouds were represented by running a simple high-resolution model within each grid column of a lowresolution global model. In idealized experiments, they found that the multiscale model produced promising simulations of organized tropical convection, which other models had struggled to produce. Inspired by their results, Colorado State University (CSU) scientists Marat Khairoutdinov and David Randall created a multiscale version of the Community Atmosphere Model (CAM). They removed the cloud parameterizations of the CAM, and replaced them with Khairoutdinov's high-resolution cloud model. They dubbed the embedded cloud model a "super-parameterization," and the modified CAM is now called the "SP-CAM." Over the next several years, many scientists, from many institutions, have explored the ability of the SP-CAM to simulate tropical weather systems, the day-night changes of precipitation, the Asian and African monsoons, and a number of other climate processes. Cristiana Stan of the Center for Ocean-Land-Atmosphere Interactions found that the SP-CAM gives improved results when coupled to an ocean model, and follow-on studies have explored the SP-CAM's utility when used as the atmospheric component of the Community Earth System Model. Much of this research has been performed under the auspices of the Center for Multiscale Modeling of Atmospheric Processes, a National Science Foundation (NSF) Science and Technology Center for which the lead institution is CSU.

Randall, David; Branson, Mark; Wang, Minghuai; Ghan, Steven J.; Craig, Cheryl; Gettelman, A.; Edwards, Jim

2013-06-18T23:59:59.000Z

231

Photo: Bruno Marty / IRD Observed and expected changes to the tropical  

E-Print Network (OSTI)

simulations 104 3.2 Features of the tropical Pacific Ocean 105 3.2.1 Large-scale currents 105 3.2.2 Ocean.3 Observed and projected changes in the tropical Pacific Ocean 141 3.3.1 Large-scale currents 141 3.3.2 Ocean, dissolved oxygen concentration and pH affect biological activity; and oceanic currents, waves and sea level

Qiu, Bo

232

Is the basinwide warming in the North Atlantic Ocean related to atmospheric carbon dioxide and global warming?  

E-Print Network (OSTI)

to atmospheric carbon dioxide and global warming? Chunzai Wang1 and Shenfu Dong1,2 Received 31 January 2010 is controversial. Some studies argued that the warming is due to global warming in association with the secular sea surface temperature. Here we show that both global warming and AMO variability make a contribution

Wang, Chunzai

233

Science, Service, Stewardship U.S. Department of Commerce | National Oceanic and Atmospheric Administration | National Marine Fisheries Service  

E-Print Network (OSTI)

and Atmospheric Administration | National Marine Fisheries Service Gulf of Mexico Seafood Safety The federal the safety of Gulf seafood.To ensure all seafood that goes to market is not tainted by oil or dispersant and is safe to eat, the process includes active monitoring of the areas where seafood is caught, frequent

234

Rock-derived Micronutrient Transport in the Tropics: Molybdenum Cycling in Deeply-weathered Panama Soils  

Science Journals Connector (OSTI)

Abstract The rock-derived micronutrient Molybdenum (Mo) is important in both terrestrial and ocean ecosystems as an essential cofactor in nitrogenase, the enzyme used by microorganisms to fix atmospheric nitrogen. As global nitrogen fixation rates respond to increasing atmospheric pCO2, the weathering, transport, and availability of this micronutrient becomes essential, because Mo limitation on nitrogen fixation has been documented in diverse ecosystems, including tropical soils in Panama. Therefore, a thorough understanding of the carbon and nitrogen cycles may depend more on the availability of trace metals such as Mo than previously realized, but the weathering and cycling of these elements as they pass across ecosystem boundaries remains poorly understood. This work explores the sources and sinks of Mo in small (36-176 ha) single land cover catchments in tropical Panama. Water samples were collected from precipitation, canopy throughfall, soil water, groundwater, soil seeps, and first- order through higher-order streams. Though Mo is considered a “rock-derived” micronutrient, concentrations were higher in precipitation and shallow soil water than in the groundwater and stream waters in contact with underlying rocks and weathered saprolite. Event-based mass balance suggests that Mo is being retained within the catchment ecosystem. The source of Mo in tropical forests may have important implications as the amount of nitrogen fixation changes during tropical forest recovery from a previous land use.

Christopher B. Gardner; W. Berry Lyons; Guy Litt; Fred L. Ogden

2014-01-01T23:59:59.000Z

235

Visualizing Storms from NCAR's Atmosphere Model at NERSC  

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

Atmosphere Model Visualizing Storms from NCAR's Atmosphere Model CCSM-sprabhat.png Global warming will likely change the statistics of tropical cyclones and hurricanes. In this...

236

Simple ocean carbon cycle models  

SciTech Connect

Simple ocean carbon cycle models can be used to calculate the rate at which the oceans are likely to absorb CO{sub 2} from the atmosphere. For problems involving steady-state ocean circulation, well calibrated ocean models produce results that are very similar to results obtained using general circulation models. Hence, simple ocean carbon cycle models may be appropriate for use in studies in which the time or expense of running large scale general circulation models would be prohibitive. Simple ocean models have the advantage of being based on a small number of explicit assumptions. The simplicity of these ocean models facilitates the understanding of model results.

Caldeira, K. [Lawrence Livermore National Lab., CA (United States); Hoffert, M.I. [New York Univ., NY (United States). Dept. of Earth System Sciences; Siegenthaler, U. [Bern Univ. (Switzerland). Inst. fuer Physik

1994-02-01T23:59:59.000Z

237

TELECONNECTIONS BETWEEN NORTHEASTERN PACIFIC OCEAN AND THE GULF OF MEXICO AND NORTHWESTERN ATLANTIC OCEAN  

E-Print Network (OSTI)

TELECONNECTIONS BETWEEN NORTHEASTERN PACIFIC OCEAN AND THE GULF OF MEXICO AND NORTHWESTERN ATLANTIC-scale interactions in the tropical Pacific Ocean, especially, processes associated with the EI Nino phenomena. He has of ocean temperatures. He suggests that an anomalously high heat supply in the equatorial Pacific

238

E-Print Network 3.0 - atmospheric circulation related Sample...  

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

is influenced by the oceanic and atmospheric circulations... -surface temperature, ocean currents and atmospheric circulation patterns. In a paper by Delworth et al....

239

ARM - Field Campaign - Year of Tropical Convection (YOTC)  

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

govCampaignsYear of Tropical Convection (YOTC) govCampaignsYear of Tropical Convection (YOTC) Campaign Links Year of Tropical Convection Website Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Year of Tropical Convection (YOTC) 2008.05.01 - 2010.04.30 Lead Scientist : Sally McFarlane Description Example of a sonde profile available from the ARM Archive The realistic representation of tropical convection in global atmospheric models is a long-standing challenge for weather and global climate models. The lack of fundamental knowledge in this area causes difficulties in modeling and predicting prominent phenomena of the tropical atmosphere such as the inter-tropical convergence zone (ITCZ), El-Nino/Southern Oscillation (ENSO), monsoons, the Madden-Julian Oscillation (MJO), tropical cyclones,

240

Atlantic Oceanographic and Meteorological LaboratoryMay-June 2006 Volume10,Number3 AOML is a research laboratory of NOAA's Office of Oceanic and Atmospheric Research  

E-Print Network (OSTI)

which have led to more accurate forecasts. Advances in technology and computer modeling capabilities of tropical cyclones but also contribute to forecast improvements. The Project has continued was an Aerosonde aircraft that successfully completed the first unmanned flight into a tropical cyclone during

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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.


242

August 24, 2010 11:3 B-936 b936-ch03 Air-Sea Interactions in Tropical Cyclones  

E-Print Network (OSTI)

, in the western parts of the oceanic basins where the ocean state is not at rest, strong currents (e.g., Kuroshio ocean current shears do not necessarily develop as in regions with shallow ocean mixed layers where made in the area of upper ocean responses and air-sea interactions during the passage of tropical

Miami, University of

243

Tropical Western Pacific  

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

ARM-00-005 ARM-00-005 RPT(TWP)-010.006 LA-UR-004434 Tropical Western Pacific Site Science Mission Plan July - December 2000 Prepared for the U.S. Department of Energy under Contract W-7405-ENG-36 Tropical Western Pacific Project Office Atmospheric and Climate Sciences Group (EES-8) Earth and Environmental Sciences Division Los Alamos National Laboratory Los Alamos, NM 87545 This report and previous versions are available electronically at the following web sites: http://www.arm.gov/docs/sites/twp/science_plan/archive.html http://www.twppo.lanl.gov/docs/office.html 2 DISCLAIMER This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor an agency thereof, nor any of their employees, makes any warranty, expresses or

244

Ocean Thermal Energy Conversion Basics | Department of Energy  

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

Thermal Energy Conversion Basics Thermal Energy Conversion Basics Ocean Thermal Energy Conversion Basics August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when the temperature difference between the warmer, top layer of the ocean and the colder, deep ocean water is about 36°F (20°C). These conditions exist in tropical coastal areas, roughly between the Tropic of Capricorn and the Tropic of Cancer. To bring the cold water to the surface, ocean thermal energy conversion plants require an expensive, large-diameter intake pipe, which is submerged a mile or more into the ocean's depths. Some energy experts believe that if ocean thermal energy conversion can become cost-competitive with conventional power technologies, it could be

245

Ocean Thermal Energy Conversion Basics | Department of Energy  

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

Thermal Energy Conversion Basics Thermal Energy Conversion Basics Ocean Thermal Energy Conversion Basics August 16, 2013 - 4:22pm Addthis A process called ocean thermal energy conversion (OTEC) uses the heat energy stored in the Earth's oceans to generate electricity. OTEC works best when the temperature difference between the warmer, top layer of the ocean and the colder, deep ocean water is about 36°F (20°C). These conditions exist in tropical coastal areas, roughly between the Tropic of Capricorn and the Tropic of Cancer. To bring the cold water to the surface, ocean thermal energy conversion plants require an expensive, large-diameter intake pipe, which is submerged a mile or more into the ocean's depths. Some energy experts believe that if ocean thermal energy conversion can become cost-competitive with conventional power technologies, it could be

246

Reduction of tropical land region precipitation variability via transpiration  

E-Print Network (OSTI)

Tropical rainforests are known to exhibit low intraseasonal precipitation variability compared with oceanic areas with similar mean precipitation in observations and models. In the present study, the potential role of ...

Lee, Jung-Eun

247

Warming of the North Pacific Ocean: Local Air–Sea Coupling and Remote Climatic Impacts  

Science Journals Connector (OSTI)

In this paper, global climatic response to the North Pacific oceanic warming is investigated in a series of coupled ocean–atmosphere 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

248

SCALAR WIND SPEED AND DIRECTION TROPICAL CYCLONE RETRIEVALS FOR CONICAL SCANNING SCATTEROMETERS  

E-Print Network (OSTI)

SCALAR WIND SPEED AND DIRECTION TROPICAL CYCLONE RETRIEVALS FOR CONICAL SCANNING SCATTEROMETERS--Scatterometer measurements of ocean vector winds (OVW) are significantly degraded in the presence of the precipitation, especially in tropical cyclones. This paper presents a new ocean hurricane/typhoon wind vector retrieval

Hennon, Christopher C.

249

Technical Sessions M. C. MacCracken Atmospheric amj Geophysical...  

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

system, including treatment of the deep ocean and horizontal transport by ocean currents 4 Separate, uncoupled, and limited treatment of atmospheric composition,...

250

The Southern Ocean in the Coupled Model Intercomparison Project phase 5  

Science Journals Connector (OSTI)

...atmosphere and ocean (although the ocean remains too coarse to permit mesoscale eddies), a larger proportion of full Earth system models (ESMs) resolving biogeochemical cycles, the inclusion of atmospheric ozone in all models and more complete atmospheric...

2014-01-01T23:59:59.000Z

251

Pacific Ocean Contribution to the Asymmetry in Eastern Indian Ocean Variability CAROLINE C. UMMENHOFER*  

E-Print Network (OSTI)

Pacific Ocean Contribution to the Asymmetry in Eastern Indian Ocean Variability CAROLINE C is restricted to the Indian or Pacific Ocean only, support the interpretation of forcing mechanisms for large Indian Ocean atmospheric forcing versus remote influences from Pacific wind forcing: low events develop

Ummenhofer, Caroline C.

252

Intensification of the Walker and Hadley atmospheric circulations during the Pliocene–Pleistocene climate transition  

Science Journals Connector (OSTI)

When comparing new sea surface temperature (SST) records between the western and eastern equatorial Pacific spanning the last 3.2 Ma, we found that the zonal temperature gradient over the entire tropical Pacific irreversibly increased by 3 to 4 °C from 2.2 to 2.0 Ma. Here, we suggest a pronounced increase in atmospheric circulation from a weak to a strong zonal Walker circulation (WC) during the early Pleistocene. Evidence from other oceanic areas also suggests a strengthening in the meridional Hadley circulation (HC) during the same time period. Therefore, we also suggest that the invigoration of both atmospheric circulation patterns was intimately coupled during the Plio–Pleistocene transition, and likely linked to a shrinkage in the zonal extension of the tropical to subtropical warm-sphere associated with a prominent increase in the pole to equator temperature gradient. Our conclusion refutes assumptions that the intensification of atmospheric circulation in the tropics and subtropics significantly contributed to the initiation of continental ice sheet formation at high latitudes, since the onset of extensive Northern Hemisphere Glaciation (NHG) occurred ? 2.75 Ma ago, in the late Pliocene. Instead, the development of a stronger atmospheric circulation ? 2.2–2.0 Ma ago could have significantly contributed to the Plio–Pleistocene climate cooling.

J. Etourneau; R. Schneider; T. Blanz; P. Martinez

2010-01-01T23:59:59.000Z

253

Developing Model Constraints on Northern Extra-Tropical Carbon Cycling Based on measurements of the Abundance and Isotopic Composition of Atmospheric CO2  

SciTech Connect

The objective of this project was to perform CO2 data syntheses and modeling activities to address two central questions: 1) how much has the seasonal cycle in atmospheric CO2 at northern high latitudes changed since the 1960s, and 2) how well do prognostic biospheric models represent these changes. This project also supported the continuation of the Scripps time series of CO2 isotopes and concentration at ten baseline stations distributed globally.

Keeling, Ralph [UCSD-SIO

2014-12-12T23:59:59.000Z

254

Mesoscale Eddy Energy Locality in an Idealized Ocean Model IAN GROOMS, LOUIS-PHILIPPE NADEAU, AND K. SHAFER SMITH  

E-Print Network (OSTI)

. SHAFER SMITH Center for Atmosphere Ocean Science, Courant Institute of Mathematical Sciences, New York

Smith, K. Shafer

255

DOE/EA-1193: Environmental Assessment for the Atmospheric Radiation Measurement (ARM) Program North Slope of Alaska and Adjacent Artic Ocean Cloud and Radiation Testbed (CART) Site (February 1997)  

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

u. S. DEPARTMENT OF ENERGY u. S. DEPARTMENT OF ENERGY FINDING OF NO SIGNIFICANT IMPACT FINAL ENVIRONMENTAL ASSESSMENT - The United States Department of Energy (DOE) has prepared an environmental assessment (EA) for the Atmospheric Radiation Measurement Cloud and Radiation Testbed (ARM/CART), North Slope of Alaska and Adjacent Arctic Ocean. The purpose of the ARM/CART program is to collect and analyze atmospheric data for the development and validation of global climate change models. The program involves construction of several small facilities and operation of sensing equipment. The EA analyzes the impacts on land use, tundra, air quality, cultura.l resources, socioeconomics, and wildlife. Separate studies (summarized in the EA) were also conducted to ensure that the operation of the facilities would not

256

Oceanic Origins of Southwest Tropical Atlantic Biases  

E-Print Network (OSTI)

-ESM NOAA Geophysical Fluid Dynamics Laboratory NOAA GFDL GFDL-CM2.1 GFDL-CM3 GFDL-ESM2M GFDL-HIRAM-C180 GFDL-HIRAM-C360 NASA Goddard Institute for Space Studies NASA GISS GISS-E2-H GISS-E2-H-CC GISS-E2-R GISS-E2-R-CC Table 1 (Continued...

Xu, Zhao

2013-05-03T23:59:59.000Z

257

E-Print Network 3.0 - atlantic ocean woce Sample Search Results  

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

S Upper ocean (250 m... OceanAtmosphere Interaction (1) The Hydrological Cycle ATMESSOCN 587 1142010 S. Riser 12... with temperature. An enhanced water cycle will...

258

Momentum Flux Budget across the AirSea Interface under Uniform and Tropical Cyclone Winds  

E-Print Network (OSTI)

into ocean currents is equal to the flux from air (wind stress). However, when the surface wave field grows into currents under TCs. 1. Introduction The passage of a tropical cyclone (TC) over a warm ocean represents one is mainly due to the vertical turbulent mixing induced by the strong momentum flux into ocean currents

Rhode Island, University of

259

ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon:  

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

Neutral cluster Air Ion Spectrometer (NAIS) Related Campaigns Observations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) 2014.01.01, Martin, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Observations and Modeling of the Green Ocean Amazon: Neutral cluster Air Ion Spectrometer (NAIS) 2014.01.01 - 2014.10.31 Lead Scientist : John Backman Description The goal of the Neutral cluster and Air Ion Spectrometer measure and mechanistically understand the factors affecting the particle number size distribution of the atmospheric particle population over a tropical rain forest (especially the effects of anthropogenic pollution as a perturbation to natural state). The instrument will complement particle number size

260

ACR 891 (?) Ocean Policy: Current Issues seminar  

E-Print Network (OSTI)

ACR 891 (?) Ocean Policy: Current Issues seminar Fall, 2013 (2 cr, + 1 cr optional) Professor of a common pool resource than the world's oceans it can only be the atmosphere. The latter is currently neglected. This seminar is intended to introduce students to some of the current issues in ocean policy

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Mechanisms of Remote Tropical Surface Warming during El Nio JOHN C. H. CHIANG AND BENJAMIN R. LINTNER  

E-Print Network (OSTI)

temperature) for the remote tropical surface warming. Over the remote oceans, latent heat flux acting throughMechanisms of Remote Tropical Surface Warming during El Niño JOHN C. H. CHIANG AND BENJAMIN R.10) simulations of the 1997/98 El Niño that the observed "remote" (i.e., outside the Pacific) tropical land

Lintner, Benjamin Richard

262

Impacts of Atmospheric Anthropogenic Nitrogen on the  

E-Print Network (OSTI)

anthropogenic carbon dioxide may result from this atmospheric nitrogen fertilization, leading to a decreaseImpacts of Atmospheric Anthropogenic Nitrogen on the Open Ocean R. A. Duce,1 * J. LaRoche,2 K quantities of atmospheric anthropogenic fixed nitrogen entering the open ocean could account for up to about

Ward, Bess

263

Ocean oxygen minima expansions and their biological impacts Lothar Stramma a,, Sunke Schmidtko a,b  

E-Print Network (OSTI)

Ocean oxygen minima expansions and their biological impacts Lothar Stramma a,Ă?, Sunke Schmidtko a Keywords: Deoxygenation Oxygen minimum zones Ecosystem changes Hypoxia Tropical ocean Tropical Atlantic dissolved oxygen with global warming. In coastal regimes oxygen deficits represent acute ecosystem

Levin, Lisa

264

Quantifying Environmental Drivers of Future Tropical Forest Extent  

Science Journals Connector (OSTI)

Future changes in atmospheric greenhouse gas concentrations, and their associated influences on climate, will affect the future sustainability of tropical forests. While dynamic global vegetation models (DGVMs) represent the processes by which ...

Peter Good; Chris Jones; Jason Lowe; Richard Betts; Ben Booth; Chris Huntingford

2011-03-01T23:59:59.000Z

265

A study of lightning activity over the warm pool western Pacific Ocean (TOGA-COARE region) for 1993  

E-Print Network (OSTI)

The warm pool western Pacific Ocean is an area of the equatorial tropics characterized by strong and frequent convection, and vigorous lightning activity. However, it has been noted by various researchers that the vast oceanic expanses experience...

Rios, Luis Alberto

2012-06-07T23:59:59.000Z

266

Atlantic Oceanographic and Meteorological LaboratoryMarch-April 2007 Volume11,Number2 AOML is a research laboratory of NOAA's Office of Oceanic and Atmospheric Research  

E-Print Network (OSTI)

miles, to ensure total coverage of the global ocean and to calibrate the satellites. AOML contributes, FloridaMiami, Florida Global Drifter 1250 Retrieved After Crossing North Atlantic Global drifter 1250 and the Global Telecommunications System. In fact, its sensors were still operational when retrieved

267

Atlantic Oceanographic and Meteorological LaboratoryNovember-December 2009 Volume 13, Number 6 AOML is an environmental research laboratory of NOAA's Office of Oceanic and Atmospheric  

E-Print Network (OSTI)

sponsored by the International Oceanographic Commission, while AOML investigators led a technology transfer of the Atlantic Ocean. Dr. Rik Wanninkhof of AOML's Global Carbon Cycle program was part of the international team commissioned by NOAA in 2002, and NOAA played a critical role in facilitating international collaboration

268

Special issue of Terrestrial, Atmospheric and Oceanic Science, 11(1), 157-186, March 2000. Assimilation of GPS Radio Occultation Data for Numerical Weather Prediction  

E-Print Network (OSTI)

Assimilation of GPS Radio Occultation Data for Numerical Weather Prediction Y-H. Kuo1 , S. Sokolovskiy2, 3 , R, water vapor), and to effectively assimilate them into weather prediction models is a challenging task assimilation, GPS/MET, numerical weather prediction, COSMIC) 1. INTRODUCTION The lack of data over the oceans

269

An investigation of Bjerknes Compensation in the Southern Ocean in the CCSM4  

SciTech Connect

This project aims to understand the relationship between poleward oceanic and atmospheric heat transport in the Southern Ocean by analyzing output from the community Climate System Model Version 4 (CCSM4). In particular, time series of meridional heat transport in both the atmosphere and the ocean are used to study whether variability in ocean heat transport is balanced by opposing changes in atmospheric heat transport, called Bjerknes Compensation. It is shown that the heat storage term in the Southern Ocean has a significant impact on the oceanic heat budget; as a result, no robust coherences between oceanic and atmospheric heat transports could be found at these southern latitudes.

Weijer, Wilbert [Los Alamos National Laboratory; Kinstle, Caroline M. [Los Alamos National Laboratory

2012-08-28T23:59:59.000Z

270

11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation  

E-Print Network (OSTI)

and in situ observations, for NWP, ocean forecasting, ecosystem applications, and climate research. BY C forecasting, military and defence operations, validating or forcing ocean and atmospheric models, ecosystem11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation Experiment

Merchant, Chris

271

Atlantic Ocean circulation at the last glacial maximum : inferences from data and models  

E-Print Network (OSTI)

This thesis focuses on ocean circulation and atmospheric forcing in the Atlantic Ocean at the Last Glacial Maximum (LGM, 18-21 thousand years before present). Relative to the pre-industrial climate, LGM atmospheric CO? ...

Dail, Holly Janine

2012-01-01T23:59:59.000Z

272

Inter-annual Tropospheric Aerosol Variability in Late Twentieth Century and its Impact on Tropical Atlantic and West African Climate by Direct and Semi-direct Effects  

SciTech Connect

A new high-resolution (0.9$^{\\circ}$x1.25$^{\\circ}$ in the horizontal) global tropospheric aerosol dataset with monthly resolution is generated using the finite-volume configuration of Community Atmosphere Model (CAM4) coupled to a bulk aerosol model and forced with recent estimates of surface emissions for the latter part of twentieth century. The surface emissions dataset is constructed from Coupled Model Inter-comparison Project (CMIP5) decadal-resolution surface emissions dataset to include REanalysis of TROpospheric chemical composition (RETRO) wildfire monthly emissions dataset. Experiments forced with the new tropospheric aerosol dataset and conducted using the spectral configuration of CAM4 with a T85 truncation (1.4$^{\\circ}$x1.4$^{\\circ}$) with prescribed twentieth century observed sea surface temperature, sea-ice and greenhouse gases reveal that variations in tropospheric aerosol levels can induce significant regional climate variability on the inter-annual timescales. Regression analyses over tropical Atlantic and Africa reveal that increasing dust aerosols can cool the North African landmass and shift convection southwards from West Africa into the Gulf of Guinea in the spring season in the simulations. Further, we find that increasing carbonaceous aerosols emanating from the southwestern African savannas can cool the region significantly and increase the marine stratocumulus cloud cover over the southeast tropical Atlantic ocean by aerosol-induced diabatic heating of the free troposphere above the low clouds. Experiments conducted with CAM4 coupled to a slab ocean model suggest that present day aerosols can shift the ITCZ southwards over the tropical Atlantic and can reduce the ocean mixed layer temperature beneath the increased marine stratocumulus clouds in the southeastern tropical Atlantic.

Evans, Katherine J [ORNL; Hack, James J [ORNL; Truesdale, John [National Center for Atmospheric Research (NCAR); Mahajan, Salil [ORNL; Lamarque, J-F [University Center for Atmospheric Research

2012-01-01T23:59:59.000Z

273

The multiple vortex nature of tropical cyclogenesis  

E-Print Network (OSTI)

) __________________________ __________________________ John Nielsen-Gammon Craig Epifanio (Chair of Committee) (Member) __________________________ __________________________ Fuqing Zhang Hongxing Liu (Member) (Member) December 2004 Major Subject: Atmospheric Sciences... iii ABSTRACT The Multiple Vortex Nature of Tropical Cyclogenesis. (December 2004) Jason Allen Sippel, B.S., Texas A&M University Chair of Advisory Committee: Dr. John Nielsen-Gammon This thesis contains an observational analysis...

Sippel, Jason Allen

2005-02-17T23:59:59.000Z

274

Reconciling disparate 20th Century Indo-Pacific ocean temperature5 trends in the instrumental record6  

E-Print Network (OSTI)

1 2 3 4 Reconciling disparate 20th Century Indo-Pacific ocean temperature5 trends in the Indian Ocean and western Pacific Ocean are consistent across26 the 4 datasets, it is uncertain whether theories for the response of the tropical Pacific Ocean to an1 increase in greenhouse gases. Assuming

Newman, Matthew

275

Reevaluating the Role of the Saharan Air Layer in Atlantic Tropical Cyclogenesis and Evolution  

Science Journals Connector (OSTI)

The existence of the Saharan air layer (SAL), a layer of warm, dry, dusty air frequently present over the tropical Atlantic Ocean, has long been appreciated. The nature of its impacts on hurricanes remains unclear, with some researchers arguing ...

Scott A. Braun

2010-06-01T23:59:59.000Z

276

Generated using version 3.0 of the official AMS LATEX template Atmospheric dynamics triggered by an oceanic SST front in a  

E-Print Network (OSTI)

Generated using version 3.0 of the official AMS LATEX template Atmospheric dynamics triggered and motivation Over the last few years, the emphasis of air­sea interaction studies has shifted from the effect. 1981; Businger and Shaw 1984) noted that the asymmetry in the SST profile creates an unequal heating

Ghil, Michael

277

Shallow marine benthic invertebrates of the Seychelles Plateau: high diversity in a tropical oligotrophic environment  

Science Journals Connector (OSTI)

...Atmosphere-ocean-ecology dynamics in the Western Indian Ocean organized by Tom Spencer...extensive in the shallow Western Indian Ocean, especially on the Seychelles...minology of four scales (point, sample, large area and geographical...benthos nor that of the Western Indian Ocean geographical province...

2005-01-01T23:59:59.000Z

278

Comparing Tropical Forest Projections from Two Generations of Hadley Centre Earth System Models, HadGEM2-ES and HadCM3LC  

Science Journals Connector (OSTI)

Future changes in atmospheric greenhouse gas concentrations and associated influences on climate could affect the future sustainability of tropical forests. The authors report on tropical forest projections from the new Hadley Centre Global ...

Peter Good; Chris Jones; Jason Lowe; Richard Betts; Nicola Gedney

2013-01-01T23:59:59.000Z

279

Effects of correcting salinity with altimeter measurements in an equatorial Pacific ocean model  

E-Print Network (OSTI)

Effects of correcting salinity with altimeter measurements in an equatorial Pacific ocean model in a tropical Pacific ocean model run for the period 1993­1997. Salinity and temperature corrections salinity with altimeter measurements in an equatorial Pacific ocean model, J. Geophys. Res., 107(C12), 8001

van Leeuwen, Peter Jan

280

Assessment of Microbial Fouling in an Ocean Thermal Energy Conversion Experiment  

Science Journals Connector (OSTI)

...Proceedings of the Ocean Thermal Energy Conversion...Claude, G. 1930. Power from the tropical seas...Metz, W. D. 1977. Ocean thermal energy: the biggest gamble in solar power. Science 198:178-180...studies, p. 1-53. In Ocean Thermal Energy Conversion...

R. Paul Aftring; Barrie F. Taylor

1979-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

E-Print Network 3.0 - atmospheric diffusion experiments Sample...  

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

technical coupling software... linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere... be followed to couple ocean and atmosphere...

282

E-Print Network 3.0 - atmospheric administration noaa Sample...  

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

and Atmospheric Administration (NOAA) proposal (Florida panhandle) and that such seafood should pose no food... Marine Fisheries Service National Oceanic and Atmospheric...

283

E-Print Network 3.0 - atmosphere model version Sample Search...  

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

coupling software Summary: linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere... be followed to couple ocean and atmosphere...

284

E-Print Network 3.0 - atmospheric models final Sample Search...  

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

coupling software Summary: linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere... be followed to couple ocean and atmosphere...

285

E-Print Network 3.0 - atmospheric experiment recherche Sample...  

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

technical coupling software... linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere... be followed to couple ocean and atmosphere...

286

E-Print Network 3.0 - atmospheric interference Sample Search...  

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

technical coupling software... linking the main model components of present-day Earth System models (ESMs), i.e. the atmosphere... be followed to couple ocean and atmosphere...

287

Ocean Currents and Circulation and Climate Change  

Science Journals Connector (OSTI)

The Atlantic Ocean, in particular its Meridional Overturning Circulation (MOC), is sensitive to the patterns of atmospheric forcing, in particular to that of the freshwater flux. Relatively small changes in at...

Henk A. Dijkstra

2014-07-01T23:59:59.000Z

288

Hybrid coupled models of the tropical Pacific: I interannual variability  

E-Print Network (OSTI)

Y. Tang Hybrid coupled models of the tropical Pacific: I interannual variability Received: 20 Two hybrid coupled models (HCMs), an intermediate complexity dynamical ocean model cou- pled to either), hybrid models (e.g., Barnett et al. 1993; Balmaseda et al. 1994,1995), and fully coupled general

Tang, Youmin

289

Projections of the Tropical Atlantic Vertical Wind Shear and Its Relationship with ENSO in SP-CCSM4  

Science Journals Connector (OSTI)

The vertical wind shear over the tropical Atlantic Ocean and its relationship with ENSO are analyzed in the superparameterized Community Climate System Model, version 4 (SP-CCSM4) and in the conventional CCSM4. The climatology of vertical wind ...

Xiaojie Zhu; Li Xu; Cristiana Stan

2014-11-01T23:59:59.000Z

290

Changes in the Tropical Pacific SST Trend from CMIP3 to CMIP5 and Its Implication of ENSO  

Science Journals Connector (OSTI)

This study assesses the changes in the tropical Pacific Ocean sea surface temperature (SST) trend and ENSO amplitude by comparing a historical run of the World Climate Research Programme Coupled Model Intercomparison Project (CMIP) phase-5 ...

Sang-Wook Yeh; Yoo-Geun Ham; June-Yi Lee

2012-11-01T23:59:59.000Z

291

Equatorial Pacific 13°C Water Eddies in the Eastern Subtropical South Pacific Ocean  

Science Journals Connector (OSTI)

Argo float profile data are used to analyze warm, salty, weakly stratified, subthermocline eddies of tropical origin in the eastern subtropical South Pacific Ocean. These eddies contain anomalous signatures of the equatorial Pacific “13°C Water” ...

Gregory C. Johnson; Kristene E. McTaggart

2010-01-01T23:59:59.000Z

292

A Conceptual Model of the Surface Salinity Distribution in the Oceanic Hadley Cell  

Science Journals Connector (OSTI)

A conceptual model of the salinity distribution in the oceanic Hadley cell is presented. The model pertains to the region of tropical easterly surface winds, where the surface salinity increases poleward from a local salinity minimum near the ...

Johan Nilsson; Heiner Körnich

2008-12-01T23:59:59.000Z

293

ORISE: Climate and Atmospheric Research  

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

Climate and Atmospheric Research Climate and Atmospheric Research Capabilities Overview U.S. Climate Reference Network U.S. Historical Climate Network Contact Us Oak Ridge Institute for Science Education Climate and Atmospheric Research The Oak Ridge Institute for Science and Education (ORISE) partners with the National Oceanic and Atmospheric Administration's Atmospheric Turbulence and Diffusion Division (ATDD) to conduct climate research focused on issues of national and global importance. Research is performed with personnel support from ORISE's Independent Environmental Assessment and Verification (IEAV) programs, as well as in collaboration with scientists and engineers from Oak Ridge National Laboratory (ORNL), and numerous other organizations, government agencies, universities and private research institutions.

294

A Conceptual Model of the Surface Salinity Distribution in the Oceanic Hadley Cell JOHAN NILSSON AND HEINER KRNICH  

E-Print Network (OSTI)

A Conceptual Model of the Surface Salinity Distribution in the Oceanic Hadley Cell JOHAN NILSSON in the oceanic Hadley cell is presented. The model pertains to the region of tropical easterly surface winds of the near-surface air is constant, the salinity variation in the oceanic Hadley cell varies essentially

Nilsson, Johan

295

Ocean Energy  

Science Journals Connector (OSTI)

Some of these technologies are taking off from very low power capacities, although with an intense activity....4, 5] including La Rance tidal power station calculate a capacity of ocean energy facilities worldwid...

Ricardo Guerrero-Lemus; José Manuel Martínez-Duart

2013-01-01T23:59:59.000Z

296

Anthropogenic Carbon Dioxide Emissions and Ocean Acidification: The Potential Impacts on Ocean Biodiversity  

Science Journals Connector (OSTI)

Most of the focus in recent years on the potential impacts of rising levels of carbon dioxide in the atmosphere linked to anthropogenic activities ... oceans as a consequence of the influx of carbon dioxide absor...

William C. G. Burns

2008-01-01T23:59:59.000Z

297

Marine black shale deposition and Hadley Cell dynamics: A conceptual framework for the Cretaceous Atlantic Ocean  

Science Journals Connector (OSTI)

Understanding the controls that determine the spatial distribution and internal heterogeneities of black shales in the Mesozoic ocean has been a focal point of research over many decades. The consensus is that atmosphere–land–ocean interactions influenced variations in marine biogeochemistry and sediment supply, thus exerting fundamental controls on the richness and quality of sedimentary organic matter (OM) and ultimately on petroleum source rock distribution and its generation potential. Internal, small-scale heterogeneities in black shales that have been reported from all ocean settings were often linked to orbitally-driven fluctuations in continental runoff and marine upwelling. The two processes are generically related under the ascending (tropical) and descending (subtropical) limbs of the palaeo-Hadley Cells, with fluctuations at variable time (seasonal, orbital, geological) and spatial (shelf, margin, deep basin) scales. These dynamic variations translate into characteristic patterns of OM quantity and quality, best preserved near the continents where the forcing effects are strongest. The expression of these orbital-scale interactions are not well constrained at the basin scale, however, they may hold a key to better understand the distribution of heterogeneities in black shales. This study presents a conceptual framework that links OM quality and quantity in Cretaceous Atlantic sediments with the dominant processes that operated under the Hadley Cells. Using a comprehensive compilation of bulk organic geochemical data – total organic carbon concentration (TOC), hydrogen index (HI), oxygen index (OI), and kerogen type – we explore how basic geochemical patterns can be used to identify the underlying generic processes. We utilise published and new data from deep ocean sites of the DSDP/ODP program, as well as one palaeo-shelf setting (Tarfaya), spanning a latitudinal transect from the outer subtropics to the palaeo-equator during the Albian, the Cenomanian–Turonian, and the Coniacian–Santonian. This study emphasises the potential of integrating orbital scale datasets and wide spatial coverage as a predictive tool for black shale formation across ocean basins.

T. Wagner; P. Hofmann; S. Flögel

2013-01-01T23:59:59.000Z

298

Atmospheric radiation measurement program facilities newsletter, June 2002.  

SciTech Connect

ARM Intensive Operational Period Scheduled to Validate New NASA Satellite--Beginning in July, all three ARM sites (Southern Great Plains [SGP], North Slope of Alaska, and Tropical Western Pacific; Figure 1) will participate in the AIRS Validation IOP. This three-month intensive operational period (IOP) will validate data collected by the satellite-based Atmospheric Infrared Sounder (AIRS) recently launched into space. On May 4, the National Aeronautics and Space Administration (NASA) launched Aqua, the second spacecraft in the Earth Observing System (EOS) series. The EOS satellites monitor Earth systems including land surfaces, oceans, the atmosphere, and ice cover. The first EOS satellite, named Terra, was launched in December 1999. The second EOS satellite is named Aqua because its primary focus is understanding Earth's water cycle through observation of atmospheric moisture, clouds, temperature, ocean surface, precipitation, and soil moisture. One of the instruments aboard Aqua is the AIRS, built by the Jet Propulsion Laboratory, a NASA agency. The AIRS Validation IOP complements the ARM mission to improve understanding of the interactions of clouds and atmospheric moisture with solar radiation and their influence on weather and climate. In support of satellite validation IOP, ARM will launch dedicated radiosondes at all three ARM sites while the Aqua satellite with the AIRS instrument is orbiting overhead. These radiosonde launches will occur 45 minutes and 5 minutes before selected satellite overpasses. In addition, visiting scientists from the Jet Propulsion Laboratory will launch special radiosondes to measure ozone and humidity over the SGP site. All launches will generate ground-truth data to validate satellite data collected simultaneously. Data gathered daily by ARM meteorological and solar radiation instruments will complete the validation data sets. Data from Aqua-based instruments, including AIRS, will aid in weather forecasting, climate modeling, and greenhouse gas studies. These instruments will provide more accurate, detailed global observations of weather and atmospheric parameters that will, in turn, improve the accuracy and quality of weather forecasts. A satellite-based instrument is cost-effective because it can provide continuous global measurements, eliminating isolated yet costly weather balloon releases. Aqua, launched from Vandenberg Air Force Base in California (Figure 2), carries six state-of-the-art instruments that measure various water vapor parameters: (1) AIRS, which measures atmospheric temperature and humidity, land and sea surface temperatures, cloud properties, and radiative energy flux; (2) Advanced Microwave Sounding Unit, which measures atmospheric temperature and humidity during both cloudy and cloud-free periods; (3) Advanced Microwave Scanning Radiometer, which measures cloud properties, radiative energy flux, precipitation rates, land surface wetness, sea ice, snow cover, sea surface temperature, and wind fields; (4) Clouds and the Earth's Radiant Energy System, which measures radiative energy flux; (5) Humidity Sounder for Brazil, which measures atmospheric humidity by using a passive scanning microwave radiometer; and (6) Moderate Resolution Imaging Spectroradiometer, which measures cloud properties, radiative energy flux, aerosol properties, land cover and land use change, vegetation dynamics, land surface temperature, fire occurrence, volcanic effects, sea surface temperature, ocean color, snow cover, atmospheric temperature and humidity, and sea ice. The data-gathering capabilities of the Aqua instruments will provide an unprecedented view of atmosphere-land interactions (Figure 3). The availability of more frequent, more accurate global measurements of important atmospheric parameters will both improve our capabilities for short-term weather forecasting and lead to a better understanding of climate variability and climate change. Simultaneous measurements of many parameters will allow scientists to study complicated forcings and feedbacks of the atmosphere, which can be

Holdridge, D. J.

2002-07-03T23:59:59.000Z

299

Infrasonic precursor of tropical cyclone  

Science Journals Connector (OSTI)

Intense infrasonic emission was observed prior to the birth of a tropical cyclone (Netreba 1991). It is connected apparently with instability of atmospheric layers in cyclone area. There are different mechanisms of this effect. Stratified compressional flow is unstable (Rybak 2002) providing amplification of its potential component. Cooling of air in upward convectionflow makes water vapor supersaturated. This is a nonequilibrium state of fluid where effect of instability can be developed. The equation of infrasonic propagation in such a medium is developed. (Naugolnykh Rybak 2006). Solutions of instabilityequation indicates the effect of radiation instability which produces infrasonic wave generation and its nonlinear evolution. Corresponding analyses of this equation make it possible to clarify the principally important aspects of cycloneinfrasonic precursors. [Work supported by ESP.NR.NRCLG982524.

Konstantin A. Naugolnykh; Samuil A. Rybak

2008-01-01T23:59:59.000Z

300

Numerical simulation of interannual and interdecadal variability of surface wind over the tropical Pacific  

Science Journals Connector (OSTI)

A global atmospheric general circulation model (L9R15 AGCMs) forced by COADS SST was integrated from 1945 to 1993. Interannual and interdecadal variability of the simulated surface wind over the tropical Pacific ...

Wu Ai-ming; Zhao Yong-ping; Bai Xue-zhi…

2002-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

On Sea Surface Roughness Parameterization and Its Effect on Tropical Cyclone Structure and Intensity  

E-Print Network (OSTI)

On Sea Surface Roughness Parameterization and Its Effect on Tropical Cyclone Structure and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822 Yihong Duan National 10, 2009 (Revised) Dateline Revised for Advances in Atmospheric Sciences Corresponding author

Wang, Yuqing

302

Tropical Water Vapor and Cloud Feedbacks in Climate Models: A Further Assessment Using Coupled Simulations  

Science Journals Connector (OSTI)

By comparing the response of clouds and water vapor to ENSO forcing in nature with that in Atmospheric Model Intercomparison Project (AMIP) simulations by some leading climate models, an earlier evaluation of tropical cloud and water vapor ...

De-Zheng Sun; Yongqiang Yu; Tao Zhang

2009-03-01T23:59:59.000Z

303

Tropical Pacific Influence on the Source and Transport of Marine Aerosols to West Antarctica  

E-Print Network (OSTI)

The climate of West Antarctica is strongly influenced by remote forcing from the tropical Pacific. For example, recent surface warming over West Antarctica reflects atmospheric circulation changes over the Amundsen Sea, ...

Criscitiello, Alison S.

304

Quaternary Science Reviews 20 (2001) 15611576 Millennial scale climate variability of the northeast Pacific Ocean and  

E-Print Network (OSTI)

of the northeast Pacific Ocean and northwest North America based on radiolaria and pollen N.G. Pisiasa, *, A in the Northeast Pacific and the northwestern United States. 2. Study region 2.1. Ocean climate and biota.C. Mixa , L. Heusserb a College of Oceanic and Atmospheric Sciences, Oregon State University, 104 Ocean

Kurapov, Alexander

305

Atmospheric Chemistry  

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

competencies Atmospheric Chemistry Atmospheric Chemistry is the study of the composition of the atmosphere, the sources and fates of gases and particles in air, and changes induced...

306

Hydrogen in the atmosphere: Observations above a forest canopy in a polluted environment  

E-Print Network (OSTI)

Hydrogen in the atmosphere: Observations above a forest canopy in a polluted environment Diana H and Structure: Pollution--urban and regional (0305); 0365 Atmospheric Composition and Structure: Troposphere. Novelli Climate Monitoring and Diagnostics Laboratory, National Oceanic and Atmospheric Administration

307

CAPE in Tropical Cyclones  

E-Print Network (OSTI)

1999) found that lightning flash frequency was proportionallightning distribution in tropical cyclones. The ratio of downshear to upshear flasheslightning from 100-300 km radii found by Corbosiero and Molinari (2003), with larger CAPE associated with greater flash

Molinari, J.

2014-01-01T23:59:59.000Z

308

Patterns of Convection in the Tropical Western Pacific  

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

Patterns of Convection in the Tropical Western Pacific Patterns of Convection in the Tropical Western Pacific J. H. Mather Pacific Northwest National Laboratory Richland, Washington Introduction Convection is ubiquitous throughout the maritime continent region. However, the frequency of convec- tion is not uniform. While much of this region does not experience seasons to the same degree as one finds in mid-latitudes, the annual cycle of the sun's passage does have a large impact on convection throughout the maritime continent and the tropical western Pacific. The distribution of islands also affects convection in a variety of ways. Atmospheric Radiation Measurement (ARM) Program has three sites in the Tropical Western Pacific (TWP) region, illustrated in Figure 1. The sites are located on Manus, Nauru, and at Darwin, Australia.

309

The Middle-Atmosphere Hadley Circulation and Equatorial Inertial Adjustment  

Science Journals Connector (OSTI)

In the tropical middle atmosphere the climatological radiative equilibrium temperature is inconsistent with gradient-wind balance and the available angular momentum, especially during solstice seasons. Adjustment toward a balanced state results ...

Kirill Semeniuk; Theodore G. Shepherd

2001-11-01T23:59:59.000Z

310

Changing controls on oceanic radiocarbon: New insights on shallow-to-deep ocean exchange and anthropogenic  

E-Print Network (OSTI)

of radiocarbon (14 C) into the atmosphere by nuclear weapons testing in the 1950s and 1960s has provided; Ito et al., 2004]. [3] Nuclear weapons testing added a large pulse of 14 C to the atmosphere dilution, is now weaker than before weapons testing in most regions. Oceanic 14 C, and particularly its

Keeling, Ralph

311

Intermediate-depth Circulation of the Indian and South Pacific Oceans Measured by Autonomous Floats  

E-Print Network (OSTI)

Intermediate-depth Circulation of the Indian and South Pacific Oceans Measured by Autonomous Floats of the World Ocean Circulation Experiment, 306 autonomous floats were deployed in the tropical and South autonomous floats that are not acoustically tracked, but rather surface at regular intervals to be located by

Davis, Russ

312

Exploring the Deep... Ocean-Atmosphere  

E-Print Network (OSTI)

and the transfer of energy among these systems. Global energy balance The Sun is the primary source of energy on the others. To fully understand the dynamics of our climate, we must examine the global energy balance global energy balance. Incoming radiation 30 % reflected back to space 70 % radiated back to space 51

Wright, Dawn Jeannine

313

DEPARTMENT OF EARTH, OCEAN and ATMOSPHERIC SCIENCES  

E-Print Network (OSTI)

prediction, meteorological data analysis, prognosis of weather systems, motion and development, satellite meteorology, west-coast meteorology, and interpretation of satellite images, radar images, and numerical-weather imagery, Doppler radar, numerical weather prediction, extended range forecasting, and applied laboratory

314

Atmospheric,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences  

E-Print Network (OSTI)

of Michigan Space Research Building 2455 Hayward Street Ann Arbor, MI 48109-2143 aoss_um@umich.edu http Arbor ©The Regents of the University of Michigan Mark Schlissel, ex officio Sequential Graduate / under/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved

Eustice, Ryan

316

Biodiversity Conservation in Tropical Agroecosystems  

E-Print Network (OSTI)

Biodiversity Conservation in Tropical Agroecosystems A New Conservation Paradigm Ivette Perfectoa areas of the world. Although most ecologists con- cerned with biodiversity conservation would agree. This conclusion has major consequences for biodiversity con- servation in fragmented tropical forests

317

Ecological traits influencing range expansion across large oceanic dispersal  

E-Print Network (OSTI)

Section of Ichthyology, California Acadamy of Sciences, 55 Music Concourse Drive, Golden Gate Park, San. Successful establishment after crossing both barriers may be facilitated by broad environmental tolerance of the tropical Atlantic Ocean: the Central American Land Bridge, the Mid-Atlantic Barrier (MAB; the stretch

Bermingham, Eldredge

318

Chapter 4 - Ocean Thermal Energy Converters  

Science Journals Connector (OSTI)

Publisher Summary The most plentiful renewable energy source on the planet is solar radiation. Harvesting this energy is difficult because of its dilute and erratic nature. Large collecting areas and large storage capacities are needed. These two requirements are satisfied by the tropical oceans. Oceans cover 71% of Earth's surface. In the tropics, they absorb sunlight, and the top layers heat up to some 25°C. Warm surface waters from the equatorial belt flow poleward, melting both the Arctic and the Antarctic ice. The resulting cold waters return to the equator at great depth, completing a huge planetary thermosyphon. Two basic configurations have been proposed for ocean thermal energy converters (OTECs)—those using hydraulic turbines and those using vapor turbines. The first uses the temperature difference between the surface and bottom waters to create a hydraulic head that drives a conventional water turbine. The advantages of this proposal include the absence of heat exchangers. It is easier to find warm surface water than sufficiently cool abyssal waters, which are not readily available in continental shelf regions. This limits the possible sitings of ocean thermal energy converters.

Aldo Vieira da Rosa

2009-01-01T23:59:59.000Z

319

Cooperative Institute for Research in the Atmosphere Volume 36, Spring 2012  

E-Print Network (OSTI)

technologies for advanced characterization of the weather, climate, and land/ocean ecosystems. A team of CIRA Control 10 Education & Outreach at CIRA 12 Tropical Cyclone Giovanna Contents Contributors: Managing resolution of NPP sensors to improve operationally-useful tropical cyclone monitoring and characterization

Collett Jr., Jeffrey L.

320

Oceans '88  

SciTech Connect

These proceedings discuss the following papers: Solid waste disposal crisis; Plastics in Ocean; Continental shelf environmental research; Seafood technology advancements; Gulf of Mexico chemosynthetic petroleum seep communities; Water reuse on onshore mariculture and processing facilities; Oil and gas industry conflicts on the outer continental shelf; Cumulative environmental effects of the oil and gas leasing program; Oil and gas exploration; and Oil and gas resource management; Aids to navigation systems and equipment; and Surveillance experiments.

Not Available

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

www.solas-int.org //00//00 surface ocean -lower atmosphere study Mid-Term Strategy theme: Air-sea gas fluxes at Eastern boundary Upwelling and Oxygen Minimum Zone (OMZ) systems  

E-Print Network (OSTI)

to space (aerosol direct effect), and have the potential to modify cloud cover and thus Earth's albedo (aerosol indirect effect). One such molecule is glyoxal that forms secondary organic aerosol (SOA). SOA, the first ship-based detection of glyoxal and iodine oxide was demonstrated over the remote tropical Pacific

322

Comparison of Atmospheric Water Vapor in Observational and Model Data Sets  

SciTech Connect

The global water vapor distribution for five observational based data sets and three GCM integrations are compared. The variables considered are the mean and standard deviation values of the precipitable water for the entire atmospheric column and the 500 to 300 hPa layer for January and July. The observationally based sets are the radiosonde data of Ross and Elliott, the ERA and NCEP reanalyses, and the NVAP blend of sonde and satellite data. The three GCM simulations all use the NCAR CCM3 as the atmospheric model. They include: a AMIP type simulation using observed SSTs for the period 1979 to 1993, the NCAR CSM 300 year coupled ocean--atmosphere integration, and a CSM integration with a 1% CO2 increase per year. The observational data exhibit some serious inconsistencies. There are geographical patterns of differences related to interannual variations and national instrument biases. It is clear that the proper characterization of water vapor is somewhat uncertain. Some conclusions about these data appear to be robust even given the discrepancies. The ERA data are too dry especially in the upper levels. The observational data evince much better agreement in the data rich Northern Hemisphere compared to the Southern. Distinct biases are quite pronounced over the Southern Ocean. The mean values and particularly the standard deviations of the three reanalyses are very dependent upon the GCM used as the assimilation vehicle for the analyses. This is made clear by the much enhanced tropical variability in the NCEP/DOE/ AMIP reanalyses compared the initial NCEP/NCAR Reanalysis. The NCAR CCM3 shows consistent evidence of a dry bias. The 1% CO2 experiment shows a very similar pattern of disagreement with the sonde data as the other integrations, once account is taken of the warming trend. No new modes of difference are evident in the 1% CO2 experiment. All the CCM3 runs indicated too much Tropical variability especially in the western Tropical Pacific and Southeast Asia. A EOF analysis of the interannual variations of the zonally averaged precipitable water and the 500 to 300 hPa layer reveals fundamental differences in the structure of the variations. The impact of ENSO and variations of the ITCZ have only a low level of correspondence between the observed data, much less the simulations. It is apparent that an adequate characterization of the climatology of the global water vapor distribution is not yet at hand.

Boyle, J.S.

2000-03-01T23:59:59.000Z

323

Efficiency of Sequestrating CO2 in the Ocean  

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

Efficiency of Sequestrating CO Efficiency of Sequestrating CO 2 in the Ocean Richard Dewey (RDewey@uvic.ca ; 250-472-4009) University of Victoria, P.O. Box 3055, Victoria BC Canada V8N 3P6 Gilbert Stegen (Dr_Stegen@hotmail.com ; 425-869-7236) SAIC and GRS Associates 17257 NE 116 th St., Redmond WA USA 98052 Abstract Ocean disposal of CO 2 continues to be of great interest as a possible mitigation strategy for reducing atmospheric emissions of anthropogenic CO 2 . The ocean, and ultimately ocean sediments, naturally represents the single largest sink of CO 2 , and annually sequesters several gigatons of carbon from the atmosphere. The injection of additional CO 2 to artificially accelerate the use of the ocean as a sink for atmospheric CO 2 and avoid a short-term build-up of greenhouse gases has been investigated for

324

Liu et aL.September 2012 373 Simulation of ocean ReSponSeS to an idealized  

E-Print Network (OSTI)

, inundation, significant wave heights and ocean currents in shallow coastal areas as a result of wave, significant wave height and ocean currents. Only in a TC-wave- ocean three-way coupled system, air, inundation, currents and significant wave height. Keywords: coupled atmosphere-wave-ocean modeling system

Liu, Paul

325

Subarctic Pacific evidence for a glacial deepening of the oceanic respired carbon pool S.L. Jaccard a,d,  

E-Print Network (OSTI)

Subarctic Pacific evidence for a glacial deepening of the oceanic respired carbon pool S.L. Jaccard of the overturning circulation. Volumetrically the Pacific Ocean dominates the world ocean (it is three times larger of Atmospheric and Oceanic Sciences, Princeton University, Princeton, USA c Department of Geosciences, Princeton

Gilli, Adrian

326

Ecological feedbacks following deforestation create the potential for a catastrophic ecosystem shift in tropical dry forest  

Science Journals Connector (OSTI)

...open. Table 1. Atmospheric deposition of phosphorus as...transported by wind and water (13) and in harvest...in P input from atmospheric deposition. Our estimates...ground by storm water washing plant surfaces...and by canopy condensation or fog deposition...feedback in the recovery of tropical...

Deborah Lawrence; Paolo D'Odorico; Lucy Diekmann; Marcia DeLonge; Rishiraj Das; James Eaton

2007-01-01T23:59:59.000Z

327

Change of the Tropical Hadley Cell Since 1950 Xiao-Wei Quan, Henry F. Diaz, and Martin P. Hoerling  

E-Print Network (OSTI)

Change of the Tropical Hadley Cell Since 1950 Xiao-Wei Quan, Henry F. Diaz, and Martin P. Hoerling The change in the tropical Hadley cell since 1950 is examined within the context of the long-term warming of Hadley cell, and ensemble 50-year simulations by an atmospheric general circulation model forced

Quan, Xiaowei

328

Tropical Limit in Statistical Physics  

E-Print Network (OSTI)

Tropical limit for macroscopic systems in equilibrium defined as the formal limit of Boltzmann constant k going to 0 is discussed. It is shown that such tropical limit is well-adapted to analyse properties of systems with highly degenerated energy levels, particularly of frustrated systems like spin ice and spin glasses. Tropical free energy is a piecewise linear function of temperature, tropical entropy is a piecewise constant function and the system has energy for which tropical Gibbs' probability has maximum. Properties of systems in the points of jump of entropy are studied. Systems with finite and infinitely many energy levels and phenomena of limiting temperatures are discussed.

M. Angelelli; B. Konopelchenko

2015-02-04T23:59:59.000Z

329

Water and tropical agriculture  

Science Journals Connector (OSTI)

... covers what is potentially an important field. The author has spent six years lecturing in Tanzania, so he has first-hand experience of the problems and is well qualified to ... depends largely on the available radiation, but there is no discussion of the distribution of solar radiation in the tropical world. Given an adequate water supply, plant yields depend to ...

J. G. Lockwood

1977-09-08T23:59:59.000Z

330

Tropical Cyclone Eye Thermodynamics  

Science Journals Connector (OSTI)

In intense tropical cyclones, sea level pressures at the center are 50–100 hPa lower than outside the vortex, but only 10–30 hPa of the total pressure fall occurs inside the eye between the eyewall and the center. Warming by dry subsidence ...

H. E. Willoughby

1998-12-01T23:59:59.000Z

331

Ecological Carbon Sequestration in the Oceans and Climate Change  

Science Journals Connector (OSTI)

The biological carbon pump helps regulate the partitioning of carbon dioxide between the atmosphere and the ocean and is expected to play a fundamental role in future climate change.

Richard Sanders; Stephanie Henson

2014-07-01T23:59:59.000Z

332

Mexican drought: an observational modeling and tree ring study of variability and climate change  

E-Print Network (OSTI)

by the state of the tropical Pacific Ocean with the Atlantical. (2005b). 1. POGA (Pacific Ocean-Global Atmosphere): Inoutside of the tropical Pacific Ocean that computes SST

2009-01-01T23:59:59.000Z

333

An Observing System Simulation Experiment for the Unmanned Aircraft System Data Impact on Tropical Cyclone Track Forecasts  

Science Journals Connector (OSTI)

High-altitude, long-endurance unmanned aircraft systems (HALE UAS) are capable of extended flights for atmospheric sampling. A case study was conducted to evaluate the potential impact of dropwindsonde observations from HALE UAS on tropical ...

N. C. Privé; Yuanfu Xie; Steven Koch; Robert Atlas; Sharanya J. Majumdar; Ross N. Hoffman

2014-11-01T23:59:59.000Z

334

Development and Tropical Transition of an Alpine Lee Cyclone. Part I: Case Analysis and Evaluation of Numerical Guidance  

Science Journals Connector (OSTI)

The development and tropical transition (TT) of a subsynoptic-scale cyclone in the Gulf of Genoa during the Mesoscale Alpine Project (MAP) demonstration of probabilistic hydrological and atmospheric simulation of flood events in the alpine region ...

Ron McTaggart-Cowan; Thomas J. Galarneau Jr.; Lance F. Bosart; Jason A. Milbrandt

2010-06-01T23:59:59.000Z

335

Modeling the Atmospheric Boundary Layer Wind Response to Mesoscale Sea Surface Temperature Perturbations  

Science Journals Connector (OSTI)

The wind speed response to mesoscale SST variability is investigated over the Agulhas Return Current region of the Southern Ocean using the Weather Research and Forecasting (WRF) Model and the U.S. Navy Coupled Ocean–Atmosphere Mesoscale ...

Natalie Perlin; Simon P. de Szoeke; Dudley B. Chelton; Roger M. Samelson; Eric D. Skyllingstad; Larry W. O’Neill

2014-11-01T23:59:59.000Z

336

Model Wind over the Central and Southern California Coastal Ocean  

Science Journals Connector (OSTI)

Recent studies have shown the importance of high-resolution wind in coastal ocean modeling. This paper tests the Coupled Ocean–Atmosphere Mesoscale Prediction System (COAMPS) at the 9-, 27-, and 81-km grid resolutions in simulating wind off the ...

Hsiao-ming Hsu; Lie-Yauw Oey; Walter Johnson; Clive Dorman; Richard Hodur

2007-05-01T23:59:59.000Z

337

Changing concentrations of CO, CH4, C5H8, CH3Br, CH3I, and dimethyl sulfide during the Southern Ocean Iron Enrichment Experiments  

Science Journals Connector (OSTI)

...important sink for atmospheric CH 3 Br, a result...half of the atmospheric organobromine burden...delay the recovery of stratospheric...from ocean waters is a major source of cloud condensation nuclei...above the atmospheric boundary layer...

Oliver W. Wingenter; Karl B. Haase; Peter Strutton; Gernot Friederich; Simone Meinardi; Donald R. Blake; F. Sherwood Rowland

2004-01-01T23:59:59.000Z

338

Ocean | Open Energy Information  

Open Energy Info (EERE)

Related Links List of Ocean Thermal Incentives Retrieved from "http:en.openei.orgwindex.php?titleOcean&oldid273467" Categories: Articles with outstanding TODO tasks Sectors...

339

Ocean Observing Ocean Observing Systems (OOS)  

E-Print Network (OSTI)

, national, and global scales. · Ocean Observing Systems serve: Fishing industry National security Coastal properties, such as salinity, temperature, and waves Satellite maps of sea surface temperature NATIONAL Integrated Ocean Observing System (IOOS) 11 REGIONAL Systems, including: MANY LOCAL Systems

Schladow, S. Geoffrey

340

Google Doc projects 1.2: Exploring NCEP atmospheric reanalysis data GFD-1 Winter 2011 1 Feb 2011 to be revised frequently (stay tuned). We will load some ocean data and  

E-Print Network (OSTI)

Google Doc projects 1.2: Exploring NCEP atmospheric reanalysis data GFD-1 Winter 2011 1 Feb 2011 ideas related to NCEP atmospheric data. The idea is to explore this data with Matlab (or other plotting increase right up to the stratosphere (look here at a map view over the North Pole..with Matlab

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

DOE research on atmospheric aerosols  

SciTech Connect

Atmospheric aerosols are the subject of a significant component of research within DOE`s environmental research activities, mainly under two programs within the Department`s Environmental Sciences Division, the Atmospheric Radiation Measurement (ARM) Program and the Atmospheric Chemistry Program (ACP). Research activities conducted under these programs include laboratory experiments, field measurements, and theoretical and modeling studies. The objectives and scope of these programs are briefly summarized. The ARM Program is the Department`s major research activity focusing on atmospheric processes pertinent to understanding global climate and developing the capability of predicting global climate change in response to energy related activities. The ARM approach consists mainly of testing and improving models using long-term measurements of atmospheric radiation and controlling variables at highly instrumented sites in north central Oklahoma, in the Tropical Western Pacific, and on the North Slope of Alaska. Atmospheric chemistry research within DOE addresses primarily the issue of atmospheric response to emissions from energy-generation sources. As such this program deals with the broad topic known commonly as the atmospheric source-receptor sequence. This sequence consists of all aspects of energy-related pollutants from the time they are emitted from their sources to the time they are redeposited at the Earth`s surface.

Schwartz, S.E.

1995-11-01T23:59:59.000Z

342

The Climate Impact of Past Changes in Halocarbons and CO2 in the Tropical UTLS Region  

Science Journals Connector (OSTI)

A chemistry–climate model coupled to an ocean model is used to compare the climate impact of past (1960–2010) changes in concentrations of halocarbons with those of CO2 in the tropical upper troposphere and lower stratosphere (UTLS). The ...

Charles McLandress; Theodore G. Shepherd; M. Catherine Reader; David A. Plummer; Keith P. Shine

2014-12-01T23:59:59.000Z

343

Hybrid coupled models of the tropical Paci c | II ENSO prediction  

E-Print Network (OSTI)

Hybrid coupled models of the tropical Paci#12;c | II ENSO prediction by Youmin Tang 1 , William W: ytang@cims.nyu.edu #12; Abstract Two hybrid coupled models (HCMs), a dynamical ocean model coupled Introduction Models for ENSO prediction can be categorized into purely statistical models, hybrid coupled

Hsieh, William

344

Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal, Venezuelan Andes  

E-Print Network (OSTI)

Holocene hydrologic balance of tropical South America from oxygen isotopes of lake sediment opal is derived from Atlantic Ocean evaporation which is modified by passage over lowland South America suggest that the decreasing 18 O reflects a decrease in the fraction of moisture entering South America

Wolfe, Alexander P.

345

Energy Production, Frictional Dissipation, and Maximum Intensity of a Numerically Simulated Tropical Cyclone  

Science Journals Connector (OSTI)

A tropical cyclone (TC) viewed as a heat engine converts heat energy extracted from the ocean into the kinetic energy of the TC, which is eventually dissipated due to surface friction. Since the energy production rate is a linear function while ...

Yuqing Wang; Jing Xu

2010-01-01T23:59:59.000Z

346

Low energy architecture in the tropics: from design to building construction  

E-Print Network (OSTI)

This paper presents a realization of passive construction in Reunion, French Department in the Indian Ocean (southern hemisphere) submitted to a wet tropical climate. Aspects of passive construction were integrated at the design stage and this house does not present additional costs towards classical ones. This project was awarded a prize for architecture climate.

Boyer, Harry; Payet, François

2012-01-01T23:59:59.000Z

347

LOW ENERGY ARCHITECTURE IN THE TROPICS : FROM DESIGN TO BUILDING CONTRUCTION  

E-Print Network (OSTI)

.francois-archi@wanadoo.fr ABSTRACT This paper presents a realization of passive construction in Reunion, French Department in the Indian Ocean (southern hemisphere) submitted to a wet tropical climate. Aspects of passive construction were integrated at the design stage and this house does not present additional costs towards classical

Paris-Sud XI, Université de

348

Low energy architecture in the tropics: from design to building construction  

E-Print Network (OSTI)

This paper presents a realization of passive construction in Reunion, French Department in the Indian Ocean (southern hemisphere) submitted to a wet tropical climate. Aspects of passive construction were integrated at the design stage and this house does not present additional costs towards classical ones. This project was awarded a prize for architecture climate.

Harry Boyer; Frédéric Miranville; François Payet

2012-12-23T23:59:59.000Z

349

Model Wind over the Central and Southern California Coastal Ocean HSIAO-MING HSU  

E-Print Network (OSTI)

Model Wind over the Central and Southern California Coastal Ocean HSIAO-MING HSU National Center of high-resolution wind in coastal ocean modeling. This paper tests the Coupled Ocean­Atmosphere Mesoscale Prediction System (COAMPS) at the 9-, 27-, and 81-km grid resolutions in simulating wind off the central

350

Ocean conditions and Columbia River salmon Testimony provided for the House Subcommittee on Power and Water  

E-Print Network (OSTI)

Ocean conditions and Columbia River salmon Testimony provided for the House Subcommittee on Power Institute for the Study of the Atmosphere and Oceans/School of Marine Affairs Climate Impacts Group Box controlling salmon marine survival in the Pacific Northwest, several ocean-climate events have been linked

Mantua, Nathan

351

Separating natural and bomb-produced radiocarbon in the ocean: The potential alkalinity method  

E-Print Network (OSTI)

in the upper ocean, and as a proxy for anthropogenic CO2 concentration. Both the power and the difficultySeparating natural and bomb-produced radiocarbon in the ocean: The potential alkalinity method M. Key Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, New Jersey, USA

352

An Observational Estimate of Inferred Ocean Energy Divergence KEVIN E. TRENBERTH AND JOHN T. FASULLO  

E-Print Network (OSTI)

An Observational Estimate of Inferred Ocean Energy Divergence KEVIN E. TRENBERTH AND JOHN T, in final form 25 September 2007) ABSTRACT Monthly net surface energy fluxes (FS) over the oceans are computed as residuals of the atmospheric energy budget using top-of-atmosphere (TOA) net radiation (RT

Fasullo, John

353

CARBON DIOXIDE AND OUR OCEAN LEGACY  

E-Print Network (OSTI)

to energy-consuming activities that burn fossil fuels. On a yearly basis, the average Ameri- can produces 22 of carbon dioxide from the atmosphere, or nearly half of the fossil fuel carbon emissions over this period sea life that depend on the health and avail- ability of these shelled organisms. At present, ocean

354

Vertical velocity in oceanic convection off tropical Australia  

E-Print Network (OSTI)

. . . . . . . v Vl Vl I I 1 3 6 10 Description of the Data Data Processing . . Event Criteria 10 15 21 III RESULTS . . . 26 Cores. Environment 26 34 IV COMPARISON WITH OTHER STUDIES . . . . . 40 Cores... Variations with altitude of median and strongest 10'/o-level statistics of (a) average vertical velocity, (b) maximum vertical velocity, (c) mass flux per unit length normal to the flight track and (d) diameter 32 Figure Page Reconstructed temperature...

Lucas, Christopher

2012-06-07T23:59:59.000Z

355

E-Print Network 3.0 - atmospheric administration national Sample...  

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

national Page: << < 1 2 3 4 5 > >> 1 Madelyn Appelbaum Senior Communications Policy Advisor Summary: Communications Director Office of Oceanic & Atmospheric Research National...

356

E-Print Network 3.0 - atmospheric circulation anomalies Sample...  

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

in atmospheric mass between the subtropical high located near... variations in the NAO. Ocean currents have the ability to propagate temperature ... Source: Khatiwala, Samar -...

357

E-Print Network 3.0 - atmospheric methane extracted Sample Search...  

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

search results for: atmospheric methane extracted Page: << < 1 2 3 4 5 > >> 1 Oceanic sediment methane, including methane clathrate hydrates (hydrates), is the Earth's largest...

358

E-Print Network 3.0 - atmospheric sampling nouvelle Sample Search...  

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

Oceanic and Atmospheric Administration (NOAA) proposal (south Florida) and that such seafood... the area. Sensory evaluation of the 52 finfish samples for odors indicative of...

359

E-Print Network 3.0 - atmosphere-surface exchange processes Sample...  

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

atmospheric surface layer during CBLAST, in 16th Symposium on Boundary Layers... on heat, gas, and momentum transport, infrared remote sensing, upper-ocean processes,...

360

E-Print Network 3.0 - atmospheric polycyclic aromatic Sample...  

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

burning of coal, oil, gas... called aromatic hydrocarbons. These include harmful pollutants like dioxins, PCBs and a group called... by atmospheric currents and ocean currents...

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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.


361

E-Print Network 3.0 - atmospheric mercury deposition Sample Search...  

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

Program Collection: Geosciences ; Environmental Sciences and Ecology 32 Global 3-D land-ocean-atmosphere model for mercury: present-day vs. pre-industrial1 cycles and...

362

E-Print Network 3.0 - atmospheres annual status Sample Search...  

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

sea and ice cover... , and planetary interiors human interactions with atmosphere, ocean, and land environments ... Source: Collection: Biology and Medicine 40 The Transport...

363

E-Print Network 3.0 - atmospheric dispersion coefficient Sample...  

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

spill countermeasures to reduce the adverse effects of spilled oil on the environment. Dispersants Source: NOAA Marine Fisheries Review; National Oceanic and Atmospheric...

364

10-Ch09-N51893 [13:43 2008/9/13] Temam & Tribbia: Computational Methods for the Atmosphere and the Oceans Page: 377 377434 Data Assimilation for Geophysical  

E-Print Network (OSTI)

and the Oceans Page: 377 377­434 Data Assimilation for Geophysical Fluids Jacques Blum Laboratoire Jean. A prerequisite before a prediction is to retrieve at best the state of the environment. Data assimilation-order analysis should be considered. One of the first methods used for assim- ilating data in oceanography

Navon, Michael

365

Can the vertical motions in the eyewall of tropical cyclones support persistent UAV flight?  

E-Print Network (OSTI)

Powered flights in the form of manned or unmanned aerial vehicles (UAVs) have been flying into tropical cyclones to obtain vital atmospheric measurements with flight duration typically lasting between 12 and 36 hours. Convective vertical motion properties of tropical cyclones have previously been studied. This work investigates the possibility to achieve persistent flight by harnessing the generally pervasive updrafts in the eyewall of tropical cyclones. A sailplane UAV capable of vertical take-off and landing (VTOL) is proposed and its flight characteristics simulated. Results suggest that the concept of persistent flight within the eyewall is promising and may be extendable to the rainband regions.

Poh, Chung-Kiak

2014-01-01T23:59:59.000Z

366

Ecology and Physics of Bacterial Chemotaxis in the Ocean  

Science Journals Connector (OSTI)

...source or sink of atmospheric CO2 (14). Marine...patches of DOC in the water column. Results...involved in cloud condensation. Several studies...released into the water column in ephemeral...assemblages to deep-sea water amendment. Environ...Production of atmospheric sulfur by oceanic...

Roman Stocker; Justin R. Seymour

2012-12-01T23:59:59.000Z

367

Detecting the Unexpected: A Research Framework for Ocean Acidification  

Science Journals Connector (OSTI)

(1) In the oceans, increasing CO2 alters surface seawater chemistry by decreasing ocean pH and calcium carbonate saturation state. ... Along the California Current system, artificial warming of seawater by a power plant was predicted to have a positive effect on species with a southerly geographic range and a more negative effect on those with a northerly range. ... The effects of anthropogenic CO2 on ocean chemistry are relatively well understood due to research motivated—in part—by the related climate change issue of oceanic and atmospheric warming. ...

Catherine A. Pfister; Andrew J. Esbaugh; Christina A. Frieder; Hannes Baumann; Emily E. Bockmon; Meredith M. White; Brendan R. Carter; Heather M. Benway; Carol A. Blanchette; Emily Carrington; James B. McClintock; Daniel C. McCorkle; Wade R. McGillis; T. Aran Mooney; Patrizia Ziveri

2014-08-01T23:59:59.000Z

368

Musical Atmospherics  

Science Journals Connector (OSTI)

... THE characteristics of audio musical atmospherics which are obtained when an ... musical atmospherics which are obtained when an audio amplifier is placed in a long line or aerial have been discussed from time to ...

T. L. ECKERSLEY

1935-01-19T23:59:59.000Z

369

Open Ocean Iron Fertilization for Scientific Study and Carbon Sequestration  

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

Ocean Iron Fertilization for Scientific Study and Carbon Sequestration Ocean Iron Fertilization for Scientific Study and Carbon Sequestration K. Coale coale@mlml.calstate.edu (831) 632-4400 Moss Landing Marine Laboratories 8272 Moss Landing Road Moss Landing, California 95039 USA Abstract The trace element iron has been recently shown to play a critical role in nutrient utilization, phytoplankton growth and therefore the uptake of carbon dioxide from the surface waters of the global ocean. Carbon fixation in the surface waters, via phytoplankton growth, shifts the ocean/atmosphere exchange equilibrium for carbon dioxide. As a result, levels of atmospheric carbon dioxide (a greenhouse gas) and iron flux to the oceans have been linked to climate change (glacial to interglacial transitions). These recent findings have led some to suggest that large scale

370

Aerosol Radiative Effects and Single-Scattering Properties in the Tropical Western Pacific  

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

Effects and Single-Scattering Properties Effects and Single-Scattering Properties in the Tropical Western Pacific A. M. Vogelmann and P. J. Flatau Center for Atmospheric Sciences Scripps Institution of Oceanography University of California San Diego, California M. A. Miller, M. J. Bartholomew, and R. M. Reynolds Brookhaven National Laboratory Upton, New York P. J. Flatau University Corporation for Atmospheric Research Naval Research Laboratory Monterey, California K. M. Markowicz Institute of Geophysics University of Warsaw Warsaw, Poland Introduction The Atmospheric Radiation Measurement (ARM) Tropical Western Pacific (TWP) sites are downwind from Southeast Asia where biomass burning occurs and can advect over the tropical warm pool. Previous research (Vogelmann 2001, 2002, 2003) indicates that aerosol forcing was particularly large

371

A white paper on Effects of Anthropogenic Pollution on the Atmospheric  

E-Print Network (OSTI)

1 A white paper on Effects of Anthropogenic Pollution on the Atmospheric Chemistry of the Tropical Brazilian Partner Organizations National Institute for Amazonian Research (INPA)1 The Large-Scale Biosphere-Atmosphere by the atmospheric oxidation of trace gases to low volatility compounds (Chen et al. 2009). These products can

372

Multiscale Variability of Deep Convection In Realation to Large-Scale Circulation in TOGA COARE  

Science Journals Connector (OSTI)

Deep convection over the Indo–Pacific oceanic warm pool in the Tropical Ocean Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) occurred in cloud clusters, which grouped together in regions favoring their occurrence. ...

Shuyi S. Chen; Robert A. Houze Jr.; Brian E. Mapes

1996-05-01T23:59:59.000Z

373

On How Hot Towers Fuel the Hadley Cell: An Observational and Modeling Study of Line-Organized Convection in the Equatorial Trough from TOGA COARE  

Science Journals Connector (OSTI)

An airflow trajectory analysis was carried out based on an idealized numerical simulation of the nocturnal 9 February 1993 equatorial oceanic squall line observed over the Tropical Ocean and Global Atmosphere Coupled Ocean–Atmosphere Response ...

Alexandre O. Fierro; Joanne Simpson; Margaret A. LeMone; Jerry M. Straka; Bradley F. Smull

2009-09-01T23:59:59.000Z

374

Mount Kenya Global Atmosphere Watch Station (MKN): Installation and Meteorological Characterization  

Science Journals Connector (OSTI)

The meteorological conditions at the Mount Kenya (station identifier MKN) tropical Global Atmosphere Watch Programme station are described. Like other stations in mountainous terrain, the site experiences thermally induced wind systems that ...

Stephan Henne; Wolfgang Junkermann; Josiah M. Kariuki; John Aseyo; Jörg Klausen

2008-11-01T23:59:59.000Z

375

Eddy-covariance observations of the atmosphere-biosphere exchange of nitrogen oxides  

E-Print Network (OSTI)

and Kesselmeier, J. : Nitrogen dioxide (NO 2 ) uptake byM. : Leaf uptake of nitrogen dioxide (NO 2 ) in a tropicalMorikawa, H. : Atmospheric nitrogen dioxide gas is a plant

Min, Kyung-Eun

2012-01-01T23:59:59.000Z

376

Search Workshop on Large-Scale Atmosphere–Cryosphere Observations  

Science Journals Connector (OSTI)

Although certain regions of the Arctic have experienced periods of decadal warming during the last 100 years, recent decades show an ongoing suite of Arctic-wide, interrelated atmospheric, oceanic, terrestrial, and human dimension changes. A ...

James Overland; John Calder; Florence Fetterer; David McGuire; James Morison; Jackie Richter-Menge; Nancy Soreide; John Walsh

2003-08-01T23:59:59.000Z

377

Copyrighted Material What Is Tropical Ecology?  

E-Print Network (OSTI)

Copyrighted Material What Is Tropical Ecology? Asking the question, What is tropical ecology? may seem akin to asking questions such as, Who is buried in Grant's tomb? Tropical ecology is the study of the ecology of tropical regions. But so what? Consider these questions: First, what is ecology? What are its

Landweber, Laura

378

El Nio's tropical climate and teleconnections as a blueprint for pre-Ice-Age Peter Molnar* and Mark A. Cane  

E-Print Network (OSTI)

2 in the atmosphere or to reduced heat transport by the Atlantic Ocean. The sources of the strongest unanimity. Some have supposed that CO2 in the atmosphere has decreased and that the reduced greenhouse of partial pressures of CO2 in past atmospheres, however, show only modest changes during the last 50 Myr (5

Columbia University

379

Atmospheric Neutrinos  

E-Print Network (OSTI)

This paper is a brief overview of the theory and experimental data of atmospheric neutrino production at the fiftieth anniversary of the experimental discovery of neutrinos.

Thomas K. Gaisser

2006-12-11T23:59:59.000Z

380

Bringing the ocean into the laboratory to probe the chemical complexity of sea spray aerosol  

Science Journals Connector (OSTI)

...dDepartment of Atmospheric Science, Colorado State University, Fort Collins...anddDepartment of Atmospheric Science, Colorado State University, Fort Collins...the oceans, deserts, and wildfires, contribute 90% (mass/mass) to atmospheric...measurements were made using the Colorado State University continuous...

Kimberly A. Prather; Timothy H. Bertram; Vicki H. Grassian; Grant B. Deane; M. Dale Stokes; Paul J. DeMott; Lihini I. Aluwihare; Brian P. Palenik; Farooq Azam; John H. Seinfeld; Ryan C. Moffet; Mario J. Molina; Christopher D. Cappa; Franz M. Geiger; Gregory C. Roberts; Lynn M. Russell; Andrew P. Ault; Jonas Baltrusaitis; Douglas B. Collins; Craig E. Corrigan; Luis A. Cuadra-Rodriguez; Carlena J. Ebben; Sara D. Forestieri; Timothy L. Guasco; Scott P. Hersey; Michelle J. Kim; William F. Lambert; Robin L. Modini; Wilton Mui; Byron E. Pedler; Matthew J. Ruppel; Olivia S. Ryder; Nathan G. Schoepp; Ryan C. Sullivan; Defeng Zhao

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Noble gases as proxies of mean ocean temperature: sensitivity studies using a climate model of reduced complexity  

E-Print Network (OSTI)

-core measurements of krypton, xenon, and argon into a global mean ocean temperature change. Simulated noble gas-to-nitrogen gas Krypton Xenon Argon Mean ocean temperature Paleoclimatic proxy a b s t r a c t Past global mean ocean temperature may be reconstructed from measurements of atmospheric noble gas concentrations in ice

Stocker, Thomas

382

Impact of Anomalous Ocean Heat Transport on the North Atlantic Oscillation FABIO D'ANDREA, ARNAUD CZAJA, AND JOHN MARSHALL  

E-Print Network (OSTI)

in the spectral power of the NAO. By greatly increasing the efficiency of ocean heat transport, the NAOImpact of Anomalous Ocean Heat Transport on the North Atlantic Oscillation FABIO D'ANDREA, ARNAUD 2005) ABSTRACT Coupled atmosphere­ocean dynamics in the North Atlantic is studied by means of a simple

Czaja, Arnaud

383

Effect of ocean temperature on southwestern U.S. climate analyzed  

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

December » December » Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern U.S. climate analyzed Researchers concluded that only part of the recent temperature rise in the Southwest could be attributed to greenhouse gases. December 19, 2013 Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Assuming that the past is a good indicator of the future, the scientists conclude that there should be wetter times ahead. Researchers have analyzed the relationship between a natural phenomenon in

384

parsons(2)-98.pdf  

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

69 A "New" Mechanism for the Diurnal Variation of Convection over the Tropical Western Pacific Ocean D. B. Parsons Atmospheric Technology Division National Center for Atmospheric...

385

cohn-99.PDF  

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

Parsons National Center for Atmospheric Research Atmospheric Technology Division Boulder, Colorado Introduction The Tropical Ocean Climate Study (TOCS) cruise took place January...

386

ARM Tropical Western Pacific (TWP) Operations Management and Support: Securing ARM Data  

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

Tropical Western Pacific (TWP) Operations Tropical Western Pacific (TWP) Operations Management and Support: Securing ARM Data K. L. Nitschke South Pacific Regional Environment Programme Apia, Samoa L. Jones Los Alamos National Laboratory Los Alamos, New Mexico C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction The Tropical Western Pacific Office (TWPO) (a) has been tasked with providing operational management and support for three (b) climate station instrument facilities in the Tropical Western pacific (TWP) locale. The TWPO has the distinctive purview in ensuring data availability from two remote Pacific Islands and Australia to support the continued national and international scientific collaboration that exemplifies the Atmospheric Radiation Measurement (ARM) Program. Data from the international sites have been

387

Changes in Dimethyl Sulfide Oceanic Distribution due to Climate Change  

SciTech Connect

Dimethyl sulfide (DMS) is one of the major precursors for aerosols and cloud condensation nuclei in the marine boundary layer over much of the remote ocean. Here they report on coupled climate simulations with a state-of-the-art global ocean biogeochemical model for DMS distribution and fluxes using present-day and future atmospheric CO{sub 2} concentrations. They find changes in zonal averaged DMS flux to the atmosphere of over 150% in the Southern Ocean. This is due to concurrent sea ice changes and ocean ecosystem composition shifts caused by changes in temperature, mixing, nutrient, and light regimes. The largest changes occur in a region already sensitive to climate change, so any resultant local CLAW/Gaia feedback of DMS on clouds, and thus radiative forcing, will be particularly important. A comparison of these results to prior studies shows that increasing model complexity is associted with reduced DMS emissions at the equator and increased emissions at high latitudes.

Cameron-Smith, P; Elliott, S; Maltrud, M; Erickson, D; Wingenter, O

2011-02-16T23:59:59.000Z

388

Ocean | Data.gov  

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

Ocean Ocean Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean Welcome to our COMMUNITY This is the National Ocean Council's portal for data, information, and decision tools to support people engaged in regional marine planning for the future use of the ocean, our coasts, and the Great Lakes. Our goal is to enhance discovery of and access to data and information for planners, stakeholders, and the public. Please visit our Feedback page to tell us what would make the site most useful to you as we expand our content. Start Here! Previous Pause Next PacIOOS - Pacific Islands Voyager PacIOOS - Pacific Islands Voyager View More West Coast Governors Alliance - Regional Data Framework West Coast Governors Alliance - Regional Data Framework View More Mid-Atlantic Ocean Data Portal

389

Slowdown of the meridional overturning circulation in the upper Pacific Ocean  

Science Journals Connector (OSTI)

... climate variability assumes that the meridional overturning circulation in the upper ocean acts as a conveyor belt for transporting water mass anomalies from the subtropics to the tropics. In this ... on this density surface are about 5–10 years, depending on details of a water parcel's pathway and where it is subducted. Comparable transit times and circulation pathways have ...

Michael J. McPhaden; Dongxiao Zhang

2002-02-07T23:59:59.000Z

390

Mechanisms for Tropical Tropospheric Circulation Change in Response to Global Warming*  

E-Print Network (OSTI)

Mechanisms for Tropical Tropospheric Circulation Change in Response to Global Warming* JIAN MA change in global warming is studied by comparing the response of an atmospheric general circulation model globally in response to SST warming. A diagnostic framework is developed based on a linear baroclinic model

Xie, Shang-Ping

391

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level  

E-Print Network (OSTI)

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level ozone pollution C. N. Hewitta,1 , A. R. MacKenziea , P. Di Carlob , C. F. Di Marcoc , J. R. Dorseyd , MCentre for Ecology and Hydrology, Penicuik, Edinburgh EH26 0QB, United Kingdom; dSchool of Earth, Atmospheric

392

Southeast Pacific atmospheric composition and variability sampled along 20?S during VOCALS-REx  

SciTech Connect

The VAMOS Ocean-Climate-Atmosphere-Land Regional Experiment (VOCALS-REx) was conducted from 15 October to 15 November 2008 in the South East Pacific region to investigate interactions between land, sea and atmosphere in this unique tropical eastern ocean environment and to improve the skill of global and regional models in representing the region. This study synthesises selected aircraft, ship and surface site observations from VOCALS-REx to statistically summarise and characterise the atmospheric composition and variability of the Marine Boundary Layer (MBL) and Free Troposphere (FT) along the 20{sup o} S parallel between 70{sup o} W and 85{sup o} W. Significant zonal gradients in mean MBL sub-micron aerosol particle size and composition, carbon monoxide, ozone and sulphur dioxide were seen over the campaign, with a generally more variable and polluted coastal environment and a less variable, more pristine remote maritime regime. Gradients are observed to be associated with strong gradients in cloud droplet number. The FT is often more polluted in terms of trace gases than the MBL in the mean; however increased variability in the FT composition suggests an episodic nature to elevated concentrations. This is consistent with a complex vertical interleaving of airmasses with diverse sources and hence pollutant concentrations as seen by generalised back trajectory analysis, which suggests contributions from both local and long-range sources. Furthermore, back trajectory analysis demonstrates that the observed zonal gradients both in the boundary layer and the free troposphere are characteristic of marked changes in airmass history with distance offshore - coastal boundary layer airmasses having been in recent contact with the local land surface and remote maritime airmasses having resided over ocean for in excess of ten days. Boundary layer composition to the east of 75{sup o} W was observed to be dominated by coastal emissions from sources to the west of the Andes, with evidence for diurnal pumping of the Andean boundary layer above the height of the marine capping inversion. The climatology presented here aims to provide a valuable dataset to inform model simulation and future process studies, particularly in the context of aerosol-cloud interaction and further evaluation of dynamical processes in the SEP region for conditions analogous to those during VOCALS-REx.

Allen, G.; Kleinman, L.; Coe, H.; Clarke, A.; Bretherton, C.; Wood, R.; Abel, S. J.; Barrett, P.; Brown, P.; George, R.; Freitag, S.; McNaughton, C.; Howell, S.; Shank, L.; Kapustin, V.; Brekhovskikh, V.; Lee, Y.-N.; Springston, S.; Toniazzo, T.; Krejci, R.; Fochesatto, J.; Shaw, G.; Krecl, P.; Brooks, B.; McKeeking, G.; Bower, K. N.; Williams, P. I.; Crosier, J.; Crawford, I.; Connolly, P.; Covert, D.; Bandy, A. R.

2011-01-10T23:59:59.000Z

393

CDIAC Atmospheric Pressure Data Sets  

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

Atmospheric Pressure Atmospheric Pressure CDIAC Climate Holdings Containing Atmospheric Pressure Data Global Data Sets Data Set Name Investigators Data Type/Format Period of Record Global Historical Climatology Network (GHCN); Vs. 1 (CDIAC NDP-041) R.S. Vose et al. Surface stations; monthly mean sea-level pressure Varies by station; through 1990 Extended Edited Synoptic Cloud Reports from Ships and Land Stations Over the Globe, 1952-2009 (CDIAC NDP-026C) C.J. Hahn, S.G. Warren, and R. Eastman Six-hourly synoptic observations of sea-level pressure Land 1971-2009; Ocean 1952-2008 Global Historical Climatology Network (GHCN); Vs. 2 (Note: the above link takes you to NOAA's National Climatic Data Center website.) R.S. Vose et al. Surface stations; monthly mean sea-level pressure Varies by station; some through most recent month

394

CDIAC Atmospheric Moisture Data Sets  

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

Atmospheric Moisture Atmospheric Moisture CDIAC Climate Holdings Containing Atmospheric Moisture Data Global Data Sets Data Set Name Investigators Data Type/Format Period of Record Extended Edited Synoptic Cloud Reports from Ships and Land Stations Over the Globe, 1952-2009 (CDIAC NDP-026C) C.J. Hahn, S.G. Warren, and R. Eastman Six-hourly synoptic observations of dew point depression (combined with air temperature) Land 1971-2009; Ocean 1952-2008 Regional Data Sets Data Set Name Investigators Data Type/Format Period of Record Six- and Three-Hourly Meteorological Observations from 223 Former U.S.S.R. Stations (CDIAC NDP-048) V. Razuvaev et al. Surface stations; 6- and 3-hourly observations of relative humidity, vapor pressure, humidity deficit, and dew point temperature Varies by station; through 2000

395

Atmospheric tritium  

SciTech Connect

Research progress for the year 1979 to 1980 are reported. Concentrations of tritiated water vapor, tritium gas and tritiated hydrocarbons in the atmosphere at selected sampling points are presented. (ACR)

Oestlund, H.G.; Mason, A.S.

1980-01-01T23:59:59.000Z

396

Workshop on Carbon Sequestration Science - Ocean Carbon Sequestration  

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

Ocean Carbon Ocean Carbon Sequestration Howard Herzog MIT Energy Laboratory May 24, 2001 Ocean Carbon Sequestration Options * The direct injection of a relatively pure CO 2 stream that has been generated, for example, at a power plant or from an industrial process * The enhancement of the net oceanic uptake from the atmosphere, for example, through iron fertilization The DOE Center for Research on Ocean Carbon Sequestration (DOCS) * Established July 1999 * Centered at LBNL and LLNL * Participants S Eric Adams MIT S Jim Barry MBARI S Jim Bishop DOCS Scientific Co-director LBNL S Ken Caldeira DOCS Scientific Co-director LLNL S Sallie Chisholm MIT S Kenneth Coale Moss Landing Marine Laboratory S Russ Davis Scripps Institution of Oceanography S Paul Falkowski Rutgers S Howard Herzog MIT S Gerard Nihous Pacific International Center for High Technology Research

397

Author's personal copy Solar modulation in surface atmospheric electricity  

E-Print Network (OSTI)

Author's personal copy Solar modulation in surface atmospheric electricity R. Giles Harrison a is the major source of air's electrical conductivity over the oceans and well above the continents atmospheric electrical circuit, including the local vertical current density and the related surface potential

Usoskin, Ilya G.

398

OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT  

E-Print Network (OSTI)

Ocean Thermal Energy Conversion (OTEC) Draft Programmaticof ocean thermal energy conversion technology. U.S. Depart~on Ocean TherUial Energy Conversion, June 18, 1979. Ocean

Sands, M.Dale

2013-01-01T23:59:59.000Z

399

Diagnosing Forecast Errors in Tropical Cyclone Motion  

Science Journals Connector (OSTI)

This paper reports on the development of a diagnostic approach that can be used to examine the sources of numerical model forecast error that contribute to degraded tropical cyclone (TC) motion forecasts. Tropical cyclone motion forecasts depend ...

Thomas J. Galarneau Jr.; Christopher A. Davis

2013-02-01T23:59:59.000Z

400

The Role of Oceans and Sea Ice in Abrupt Transitions between Multiple Climate States  

E-Print Network (OSTI)

The coupled climate dynamics underlying large, rapid, and potentially irreversible changes in ice cover are studied. A global atmosphere–ocean–sea ice general circulation model with idealized aquaplanet geometry is forced ...

Rose, Brian E. J.

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Oceanic control of the sea ice edge and multiple equilibria in the climate system  

E-Print Network (OSTI)

I study fundamental mechanisms of atmosphere-ocean-sea ice interaction. Hierarchies of idealized models are invoked to argue that multiple equilibria and abrupt change are robust features of the climate system. The main ...

Rose, Brian E. J. (Brian Edward James)

2010-01-01T23:59:59.000Z

402

Estimation of atmospheric deposition in coastal Jalisco, western Mexico, using an epiphytic plant (Tillandsia recurvata L. Bromeliaceae)  

E-Print Network (OSTI)

Ttllandsia recurvata was used as a biomonitor to ographics. estimate the trace element atmospheric deposition in a tropical dry forest of the Pacific coast of Jalisco, in western Mexico. The plant samples were initially collected gem a population...

Sahagun Godinez, Eduardo

2012-06-07T23:59:59.000Z

403

NPP Tropical Forest: Atherton, Australia  

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

Atherton, Australia, 1974-1985 Atherton, Australia, 1974-1985 [PHOTOGRAPH] Photograph: View across the forest canopy near Atherton (click on the photo to view a series of images from this site) Data Citation Cite this data set as follows: Stocker, G. C. 2001. NPP Tropical Forest: Atherton, Australia, 1974-1985. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Description Litterfall was determined over 3-4 years (1974/5-1978) for two tropical rainforest sites and for 5 years (1980-1985) for a third study site near Atherton, Queensland, in northeast Australia. Although net primary production (NPP) was not determined, the extensive site description data and the rarity of measurements on tropical forests south of the Equator

404

NPP Tropical Forest: Darien, Panama  

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

Darien, Panama, 1967-1968 Darien, Panama, 1967-1968 [PHOTOGRAPH] Photograph: Tropical moist forest near Darien (click on the photo to view a series of images from this site). Data Citation Cite this data set as follows: Golley, F. B. 1998. NPP Tropical Forest: Darien, Panama, 1967-1968. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Description Biomass and nutrient content of different vegetation components and soil for a transitional moist/dry tropical forest were determined in 1967-68 at Darien Province, Panama. NPP was not estimated. Situated about 160 km ESE of Panama City, close to the town of Santa Fe, the Darien study site consisted of two plots, about 8 km apart, one of

405

Pathways and Mechanisms of OceanTracer Transport: Implications for Carbon Sequestration  

SciTech Connect

This funding enabled the following published manuscripts in which we have developed models of direct relevance to ocean carbon sequestration and of the oceanic iron cycle, its connection to the global carbon cycle, and the sensitivity of atmospheric carbon dioxide to the external source of iron. As part of this process we have developed the adjoint of the MIT ocean biogeochemistry model which has enabled us to perform rigorous and efficient sensitivity studies.

Marshall, John; Follows, MIchael

2006-11-06T23:59:59.000Z

406

Observations of the impact of a major Saharan dust storm on the atmospheric radiation balance  

SciTech Connect

Saharan dust storms transport large quantities of material across the African continent and beyond, causing widespread disruption and hazards to health. The dust may be deposited into the Atlantic Ocean, where it provides an important source of nutrients1, and may be carried as far as the West Indies. Such events may also influence the growth of Atlantic tropical cyclones. Satellite observations have enabled estimates to be made of the effect of the dust on the radiation budget seen from space, but only limited in situ observations have hitherto been made at the surface. Here we present the first simultaneous and continuous observations of the effect of a major dust storm in March 2006 on the radiation budget both at the top of the atmosphere (TOA) and at the surface. We combine data from the Geostationary Earth Radiation Budget (GERB) broadband radiometer and the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) on the Meteosat-8 weather satellite with remote sensing and in situ measurements from a new Mobile Facility located in Niamey, Niger (13{sup o} 29'N, 2{sup o} 10'E), operated by the US Atmospheric Radiation Measurement (ARM) program. We show that the dust produced major perturbations to the radiation budget seen from space and from the surface. By combining the two datasets, we estimate the impact on the radiation budget of the atmosphere itself. Using independent data from the Mobile Facility, we derive the optical properties of the dust and input these and other information into radiation codes to simulate the radiative fluxes. Comparisons with the observed fluxes provides a stringent test of the ability of the codes to represent the radiative properties of this important component of the global aerosol burden.

Slingo, A.; Ackerman, Thomas P.; Allan, R. P.; Kassianov, Evgueni I.; McFarlane, Sally A.; Robinson, G. J.; Barnard, James C.; Miller, Mark; Harries, J. E.; Russell, J. E.; Dewitte, S.

2006-12-01T23:59:59.000Z

407

A Model Evaluation Data Set for the Tropical ARM Sites  

DOE Data Explorer (OSTI)

This data set has been derived from various ARM and external data sources with the main aim of providing modelers easy access to quality controlled data for model evaluation. The data set contains highly aggregated (in time) data from a number of sources at the tropical ARM sites at Manus and Nauru. It spans the years of 1999 and 2000. The data set contains information on downward surface radiation; surface meteorology, including precipitation; atmospheric water vapor and cloud liquid water content; hydrometeor cover as a function of height; and cloud cover, cloud optical thickness and cloud top pressure information provided by the International Satellite Cloud Climatology Project (ISCCP).

Jakob, Christian

408

Tropical Fruit Ambrosia Makes 6 servings  

E-Print Network (OSTI)

Tropical Fruit Ambrosia Makes 6 servings 1 jar (26 oz.) mixed tropical fruit, drained 1 large coconut Lettuce leaves Directions: 1. In a large bowl, combine the tropical fruit and banana. 2. In a small bowl, stir together the yogurt, lime zest, and lime juice until blended. 3. Spoon over the fruit

Florida, University of

409

The Oceanic Phosphorus Cycle Adina Paytan*, and Karen McLaughlin  

E-Print Network (OSTI)

.3. Atmospheric Deposition 566 3.4. Marine Sediments 566 3.5. Seawater-Ocean Crust Interactions 567 4. Phosphorus). In some organisms it can also be present as intracellular polyphosphate storage granules (Figure 1. The "biological pump", a process by which carbon is "pumped" from the euphotic zone to the deep ocean, exports

Paytan, Adina

410

Applications of the Generalized DDA Formalism and the Nature of Polarized Light in Deep Oceans  

E-Print Network (OSTI)

is applied to confi rmation of irregular invisibility cloaks made from metamaterials. In the second part, radiative transfer in a coupled atmosphere-ocean system is solved to study the asymptotic nature of the polarized light in deep oceans. The rate at which...

You, Yu

2010-01-16T23:59:59.000Z

411

Memorandum of Understanding On Weather-Dependent and Oceanic Renewable Energy Resources  

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

Memorandum of Understanding (MOU) On Weather-Dependent and Oceanic Renewable Energy Resources between the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy and the U.S. Department of Commerce, National Oceanic and Atmospheric Administration

412

How ocean currents are studied  

Science Journals Connector (OSTI)

How infinite and boundless the ocean must have seemed to the first man to set foot upon its shore. Kind or stern, shallow or steep, the ocean’s shores have always held a peculiar fascination for man. The moist...

David Tolmazin

1985-01-01T23:59:59.000Z

413

Challenges in Ocean Energy Utilization  

Science Journals Connector (OSTI)

Ocean is a reservoir of energy. It is ... . Development of suitable cost effective technologies for power generation from different forms of ocean energy (like wave energy, tidal energy, Ocean Thermal Energy Conv...

S. Neelamani

2013-01-01T23:59:59.000Z

414

Ocean General Circulation Models  

SciTech Connect

1. Definition of Subject The purpose of this text is to provide an introduction to aspects of oceanic general circulation models (OGCMs), an important component of Climate System or Earth System Model (ESM). The role of the ocean in ESMs is described in Chapter XX (EDITOR: PLEASE FIND THE COUPLED CLIMATE or EARTH SYSTEM MODELING CHAPTERS). The emerging need for understanding the Earth’s climate system and especially projecting its future evolution has encouraged scientists to explore the dynamical, physical, and biogeochemical processes in the ocean. Understanding the role of these processes in the climate system is an interesting and challenging scientific subject. For example, a research question how much extra heat or CO2 generated by anthropogenic activities can be stored in the deep ocean is not only scientifically interesting but also important in projecting future climate of the earth. Thus, OGCMs have been developed and applied to investigate the various oceanic processes and their role in the climate system.

Yoon, Jin-Ho; Ma, Po-Lun

2012-09-30T23:59:59.000Z

415

Chapter 16 - Ocean Engines  

Science Journals Connector (OSTI)

Publisher Summary Ocean thermal energy converters (OTECs) took advantage of the ocean acting as an immense collector and storer of solar radiation, thus delivering a steady flow of low-grade thermal energy. The ocean plays a similar role in relation to the wind energy, which is transformed into waves far steadier than the air currents that created them. Nevertheless, waves are neither steady nor concentrated enough to constitute a highly attractive energy source notwithstanding their large total power. There is little net horizontal motion of water in a surface ocean wave. A floating object drifts in the direction of the wave with about 1% of the wave velocity. A given elementary cell of water will move in a vertical circle, surging forward near the crest of the wave but receding by an almost equal amount at the trough. Any system in which the wave velocity depends on wavelength is called dispersive; hence the deep ocean is dispersive.

Aldo Vieira da Rosa

2009-01-01T23:59:59.000Z

416

Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry  

Science Journals Connector (OSTI)

...stress and links to atmospheric new particle production . Environ...National Oceanic and Atmospheric Administration...antioxidant impacting atmospheric chemistry...Research Support, Non-U.S. Gov't...TurboMatrix Automated Thermal Desorption...4) to remove plasma. Hereafter, blood...

Frithjof C. Küpper; Lucy J. Carpenter; Gordon B. McFiggans; Carl J. Palmer; Tim J. Waite; Eva-Maria Boneberg; Sonja Woitsch; Markus Weiller; Rafael Abela; Daniel Grolimund; Philippe Potin; Alison Butler; George W. Luther III; Peter M. H. Kroneck; Wolfram Meyer-Klaucke; Martin C. Feiters

2008-01-01T23:59:59.000Z

417

Simulated Arctic atmospheric feedbacks associated with late summer sea ice anomalies  

E-Print Network (OSTI)

Simulated Arctic atmospheric feedbacks associated with late summer sea ice anomalies A. Rinke,1,2 K depend on regional and decadal variations in the coupled atmosphere-ocean-sea ice system. Citation: Rinke to investigate feedbacks between September sea ice anomalies in the Arctic and atmospheric conditions in autumn

Moore, John

418

Tropical rainforest biodiversity: field and  

E-Print Network (OSTI)

. The Udzungwas in particular, are one of the single, most important areas in Africa for biodiversity conservationTropical rainforest biodiversity: field and GIS tools for assessing, monitoring and mapping II with Tanzania National ParksTanzania National Parks andand Wildlife Conservation SocietyWildlife Conservation

419

Pore-Level Modeling of Carbon Dioxide Infiltrating the Ocean Floor  

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

Infiltrating the Ocean Floor Infiltrating the Ocean Floor Grant S. Bromhal, Duane H. Smith, US DOE, National Energy Technology Laboratory, Morgantown, WV 26507-0880; M. Ferer, Department of Physics, West Virginia University, Morgantown, WV 26506-6315 Ocean sequestration of carbon dioxide is considered to be a potentially important method of reducing greenhouse gas emissions (US DOE, 1999). Oceans are currently the largest atmospheric carbon dioxide sink; and certainly, enough storage capacity exists in the oceans to hold all of the CO 2 that we can emit for many years. Additionally, technologies exist that allow us to pump liquid CO 2 into the oceans at depths between one and two kilometers for extended periods of time and five times that deep for shorter durations. The biggest unknown in the ocean sequestration process, however, is the fate and

420

Atmospheric Radiation Measurement Program facilities newsletter, November 2002.  

SciTech Connect

Fall 2002 Intensive Operation Periods: Single Column Model and Unmanned Aerospace Vehicle--In an Intensive Operation Period (IOP) on November 3-23, 2002, researchers at the SGP CART site are collecting a detailed data set for use in improving the Single Column Model (SCM), a scaled-down climate model. The SCM represents one vertical column of air above Earth's surface and requires less computation time than a full-scale global climate model. Researchers first use the SCM to efficiently improve submodels of clouds, solar radiation transfer, and atmosphere-surface interactions, then implement the results in large-scale global models. With measured values for a starting point, the SCM predicts atmospheric variables during prescribed time periods. A computer calculates values for such quantities as the amount of solar radiation reaching the surface and predicts how clouds will evolve and interact with incoming light from the sun. Researchers compare the SCM's predictions with actual measurements made during the IOP, then adjust the submodels to make predictions more reliable. A second IOP conducted concurrently with the SCM IOP involves high-altitude, long-duration aircraft flights. The original plan was to use an unmanned aerospace vehicle (UAV), but the National Aeronautics and Space Administration (NASA) aircraft Proteus will be substituted because all UAVs have been deployed elsewhere. The UAV is a small, instrument-equipped, remote-control plane that is operated from the ground by a computer. The Proteus is a manned aircraft, originally designed to carry telecommunications relay equipment, that can be reconfigured for uses such as reconnaissance and surveillance, commercial imaging, launching of small space satellites, and atmospheric research. The plane is designed for two on-board pilots in a pressurized cabin, flying to altitudes up to 65,000 feet for as long as 18 hours. The Proteus has a variable wingspan of 77-92 feet and is 56 feet long. The plane can carry up to 7,260 pounds of equipment, making it a versatile research tool. The Proteus is making measurements at the very top of the cirrus cloud layer to characterize structures of these clouds. These new measurements will provide more accurate, more abundant data for use in improving the representation of clouds in the SCM. 2002-2003 Winter Weather Forecast--Top climate forecasters at the National Oceanic and Atmospheric Administration's (NOAA's) Climate Prediction Center say that an El Nino condition in the tropical Pacific Ocean will influence our winter weather this year. Although this El Nino is not as strong as the event of the 1997-1998 winter season, the United States will nevertheless experience some atypical weather. Strong impacts could be felt in several areas. Nationally, forecasters are predicting warmer-than-average temperatures over the northern tier of states and wetter-than-average conditions in the southern tier of states during the 2002-2003 winter season. Kansas residents should expect warmer and wetter conditions, while Oklahoma will be wetter than average.

Holdridge, D. J.

2002-12-03T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Constraining oceanic dust deposition using surface ocean dissolved Al  

E-Print Network (OSTI)

Constraining oceanic dust deposition using surface ocean dissolved Al Qin Han,1 J. Keith Moore,1; accepted 7 December 2007; published 12 April 2008. [1] We use measurements of ocean surface dissolved Al (DEAD) model to constrain dust deposition to the oceans. Our Al database contains all available

Zender, Charles

422

Separation of climatological imprints of the Kuroshio Extension and Oyashio fronts on the wintertime atmospheric boundary layer: Their sensitivity to SST resolution prescribed for atmospheric reanalysis  

Science Journals Connector (OSTI)

Mesoscale structures of the wintertime marine atmospheric boundary layer (MABL) as climatological imprints of oceanic fronts within the Kuroshio-Oyashio Extension (KOE) region east of Japan are investigated, by taking advantage of high horizontal ...

Ryusuke Masunaga; Hisashi Nakamura; Takafumi Miyasaka; Kazuaki Nishii; Youichi Tanimoto

423

A critical evaluation of the upper ocean heat budget in the Climate Forecast System Reanalysis data for the south central equatorial Pacific  

SciTech Connect

Coupled ocean-atmospheric models suffer from the common bias of a spurious rain belt south of the central equatorial Pacific throughout the year. Observational constraints on key processes responsible for this bias are scarce. The recently available reanalysis from a coupled model system for the National Centers for Environmental Prediction (NCEP) Climate Forecast System Reanalysis (CFSR) data is a potential benchmark for climate models in this region. Its suitability for model evaluation and validation, however, needs to be established. This paper examines the mixed layer heat budget and the ocean surface currents - key factors for the sea surface temperature control in the double Inter-Tropical Convergence Zone in the central Pacific - from 5{sup o}S to 10{sup o}S and 170{sup o}E to 150{sup o}W. Two independent approaches are used. The first approach is through comparison of CFSR data with collocated station observations from field experiments; the second is through the residual analysis of the heat budget of the mixed layer. We show that the CFSR overestimates the net surface flux in this region by 23 W m{sup -2}. The overestimated net surface flux is mainly due to an even larger overestimation of shortwave radiation by 44 W m{sup -2}, which is compensated by a surface latent heat flux overestimated by 14 W m{sup -2}. However, the quality of surface currents and the associated oceanic heat transport in CFSR are not compromised by the surface flux biases, and they agree with the best available estimates. The uncertainties of the observational data from field experiments are also briefly discussed in the present study.

Liu H.; Lin W.; Liu, X.; Zhang, M.

2011-08-26T23:59:59.000Z

424

Radon in atmospheric studies: a review  

SciTech Connect

The distribution of the isotopes of radon in space and time, their physical characteristics, and their behavior in the dynamics of the atmosphere have presented challenges for many decades. /sup 220/Rn, /sup 222/Rn and their daughters furnish a unique set of tracers for the study of transport and mixing processes in the atmosphere. Appropriate applications of turbulent diffusion theory yield general agreement with measured profiles. Diurnal and seasonal variations follow patterns set by consideration of atmospheric stability. /sup 222/Rn has been used successfully in recent studies of nocturnal drainage winds and cumulus convection. Good results have been obtained using /sup 222/Rn and its long-lived /sup 210/Pb daughter as tracers in the study of continent-to-ocean and ocean-to-continent air mass trajectories, /sup 220/Rn (thoron) because of its short half-life of only 55 seconds has been used to measure turbulent diffusion within the first few meters of the earth's surface and to study the influence of meteorological variables on the rate of exhalation from the ground. Radon daughters attach readily to atmospheric particulate matter which makes it possible to study these aerosols with respect to size spectra, attachment characteristics, removal by gravitation and precipitation, and residence times in the troposphere. The importance of ionization by radon and its daughters in the lower atmosphere and its effect on atmospheric electrical parameters is well known. Knowledge of the mobility and other characteristics of radon daughter ions has led to applications in the study of atmospheric electrical environments under fair weather and thunderstorm conditions and in the formation of condensation nuclei. The availability of increasingly sophisticated analytical tools and atmospheric measurement systems can be expected to add much to our understanding of radon and its daughters as trace components of the atmospheric environment in the years ahead.

Wilkening, M.

1981-01-01T23:59:59.000Z

425

Ocean Thermal Energy Conversion  

Science Journals Connector (OSTI)

A pertinent question, however, is: what is the worldwide power resource that could be extracted with OTEC plants without affecting the thermohaline ocean circulation? The estimate is that the maximum steady-state...

Dr. Luis A. Vega Ph.D.

2013-01-01T23:59:59.000Z

426

Ocean Thermal Energy Conversion  

Science Journals Connector (OSTI)

A pertinent question, however, is: what is the worldwide power resource that could be extracted with OTEC plants without affecting the thermohaline ocean circulation? The estimate is that the maximum steady-state...

Dr. Luis A. Vega Ph.D.

2012-01-01T23:59:59.000Z

427

Use of Ocean Energies  

Science Journals Connector (OSTI)

For converting the current of water for the production of electricity, there is a wide range of technological approaches. The Italian ocean current power plant named Kobold (Fig. 6.2) was the first commercial o...

Prof. Dr.-Ing Hermann-Josef Wagner…

2011-01-01T23:59:59.000Z

428

The mean climate of the Community Atmosphere Model (CAM4) in forced SST and fully coupled experiments  

SciTech Connect

The Community Atmosphere Model, version 4 (CAM4) was released as the atmosphere component of the Community Climate System Model, version 4 (CCSM4) and is described. The finite volume dynamical core available in CAM3 is now the default due to its superior transport and conservation properties. Deep convection parameterization changes include a dilute plume calculation of convective available potential energy (CAPE) and the introduction of a formulation for Convective Momentum Transport (CMT). For the cloud fraction an additional calculation is performed following macrophysical state updates that provides improved thermodynamic condistancy. A freeze-drying modification is further made to the cloud fraction calculation in very dry environments, such as arctic Winter, where cloud fractionand cloud water estimates were often inconsistant in CAM3. In CAM4 the finite volume dynamical core leads to a degradation in the excessive trade-wind simulation, but with an accompanying reduction in zonal stresses at higher latitudes. Plume dilution leads to a moister deep tropics alleviating much of the mid-tropospheric dry biases and reduces the persistant precipitation biases over the Arabian peninsular and the southern Indian ocean during the Indian Monsoon. CMT reduces much of the excessive trade-wind biases in eastern ocean basins. The freeze drying modification alleviates much of the high latitude, winter-time excessive cloud bias and improves the associated surface cloud-related energy budget, but the updated cloud macrophysical calculation generally leads to reduced cloud fraction and cloud forcing away from high latitudes. Although there are marginal improvements in time-averaged, large-scale hydrology there are signficant improvements in regional climate features such as the generation of tropical and propagation of stationary waves from the Pacific into mid-latitudes and in the seasonal frequency of Northern Hemisphere blocking events. A 1? versus 2? horizontal resolution of the finite volume 24 dynamical core exhibits signficiant improvements in model climate. Improvements in the fully coupled mean climate between CAM3 and CAM4 are also much more signficant than in forced Sea Surface Temperature (SST) simulations. Furthermore, improvements in the transient characteristics ofthe model climate, documented elsewhere, are substantial.

Neale, Richard; Richter, Jadwiga; Park, Sungsu; Lauritzen, P. H.; Vavrus, Steven J.; Rasch, Philip J.; Zhang, Minghua

2013-07-15T23:59:59.000Z

429

Mining an Ocean of Data: Application of modern statistical methods for addressing biological oceanography questions  

E-Print Network (OSTI)

in our understanding of global ocean circulation, heat and energy transport associated with mesoscale methods of optimizing data analysis and interpretation for maximizing data use. As part of this proposal of their potential to store heat, sequester atmospheric carbon dioxide and influence major atmospheric weather events

Columbia University

430

Effect of ocean temperature on southwestern U.S. climate analyzed  

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

Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern climate Effect of ocean temperature on southwestern U.S. climate analyzed Researchers concluded that only part of the recent temperature rise in the Southwest could be attributed to greenhouse gases. December 19, 2013 Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Image from National Oceanic and Atmospheric Administration's Environmental Visualization Laboratory depicts sea surface temperatures around Greenland from October 2010. Assuming that the past is a good indicator of the future, the scientists conclude that there should be wetter times ahead. Researchers have analyzed the relationship between a natural phenomenon in

431

NPP Tropical Forest: Kade, Ghana  

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

Kade, Ghana, 1957-1972 Kade, Ghana, 1957-1972 [PHOTOGRAPH] Photograph: Forest after clearing of secondary growth at the Kade site (click on the photo to view a series of images from this site). Data Citation Cite this data set as follows: Nye, P. H., and D. J. Greenland. 1998. NPP Tropical Forest: Kade, Ghana, 1957-1972. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Description Biomass and nutrient content of different vegetation components and soil for a secondary tropical forest were determined in the late 1950s at the Kade Agricultural Research Station of the former University College, Ghana. Net primary production (NPP) was estimated on the basis of standing biomass accumulation and litter fall. Later studies on litter and wood fall and

432

NPP Tropical Forest: Chamela, Mexico  

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

Chamela, Mexico, 1982-1995 Chamela, Mexico, 1982-1995 [PHOTOGRAPH] Photograph: Litter trap and throughfall collector in the Chamela forest (click on the photo to view a series of images from this site) Data Citation Cite this data set as follows: Maass, M., and A. Martinez-Yrizar. 2001. NPP Tropical Forest: Chamela, Mexico, 1982-1995. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Description Net primary productivity (NPP) of a tropical dry deciduous forest was estimated, based on the integration of ecosystem data obtained in various years between 1982 and 1995, at the Chamela Biological Station of the National Autonomous University of Mexico (UNAM). The Biosphere Reserve Chamela-Cuixmala, Jalisco, is situated near the

433

NPP Tropical Forest: Pasoh, Malaysia  

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

Pasoh, Malaysia, 1971-1973 Pasoh, Malaysia, 1971-1973 [PHOTOGRAPH] Photograph: Profile of the Pasoh Forest (click on the photo to view a series of images from this site) Data Citation Cite this data set as follows: Kira, T., N. Manokaran, and S. Appanah. 1998. NPP Tropical Forest: Pasoh, Malaysia, 1971-1973. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Description Biomass and productivity of a lowland tropical forest in the Pasoh Forest Reserve, Malaysia, were determined from 1971 to 1973, under the auspices of the International Biological Programme. From 1970 to 1978, intensive research on lowland rain forest ecology and dynamics took place under a joint research project between the University of Malaya (UM) and the

434

Flexible ocean upwelling pipe  

DOE Patents (OSTI)

In an ocean thermal energy conversion facility, a cold water riser pipe is releasably supported at its upper end by the hull of the floating facility. The pipe is substantially vertical and has its lower end far below the hull above the ocean floor. The pipe is defined essentially entirely of a material which has a modulus of elasticity substantially less than that of steel, e.g., high density polyethylene, so that the pipe is flexible and compliant to rather than resistant to applied bending moments. The position of the lower end of the pipe relative to the hull is stabilized by a weight suspended below the lower end of the pipe on a flexible line. The pipe, apart from the weight, is positively buoyant. If support of the upper end of the pipe is released, the pipe sinks to the ocean floor, but is not damaged as the length of the line between the pipe and the weight is sufficient to allow the buoyant pipe to come to a stop within the line length after the weight contacts the ocean floor, and thereafter to float submerged above the ocean floor while moored to the ocean floor by the weight. The upper end of the pipe, while supported by the hull, communicates to a sump in the hull in which the water level is maintained below the ambient water level. The sump volume is sufficient to keep the pipe full during heaving of the hull, thereby preventing collapse of the pipe.

Person, Abraham (Los Alamitos, CA)

1980-01-01T23:59:59.000Z

435

Momentum transport processes in the stratiform regions of mesoscale convective systems over the western Pacific warm pool  

E-Print Network (OSTI)

Momentum transport by the stratiform components of mesoscale convective systems (MCSs) during the Tropical Ocean–Global Atmosphere Coupled Ocean–Atmosphere Response Experiment in December 1992 is investigated using a ...

Mechem, David B.; Chen, Shuyi S.; Houze, Robert A. Jr.

2006-04-01T23:59:59.000Z

436

UPDATE: Tropical Storm Isaac | Department of Energy  

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

UPDATE: Tropical Storm Isaac UPDATE: Tropical Storm Isaac UPDATE: Tropical Storm Isaac August 27, 2012 - 6:30pm Addthis Satellite image of Tropical Storm Isaac. | Courtesy of NOAA. Satellite image of Tropical Storm Isaac. | Courtesy of NOAA. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Tropical Storm Isaac has impacted Florida and is expected to make landfall along the Gulf Coast by early morning on August 29. As thousands of Gulf Coast residents are without power, the Energy Department's Office of Electricity Delivery and Energy Reliability will publish Emergency Situation Reports that provide details on customer outages and other energy sector impacts in the storm's path, as well as recovery and restoration activities being undertaken. The first Situation

437

Mitigating GHG Emissions in the Humid Tropics: Case Studies From the Alternatives to Slash-and-Burn Program (ASB)  

Science Journals Connector (OSTI)

Tropical forest conversion contributes as much as 25% of the net annual CO2 emissions and up to 10% of the N2O emissions to the atmosphere. The net effect on global warming potential (GWP) also depends on the net...

Cheryl Palm; Tom Tomich; Meine Van Noordwijk…

2004-01-01T23:59:59.000Z

438

ARM - Field Campaign - Observations and Modeling of the Green Ocean Amazon  

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

govCampaignsObservations and Modeling of the Green Ocean Amazon Aerial govCampaignsObservations and Modeling of the Green Ocean Amazon Aerial Campaign Campaign Links GOAMAZON Website Related Campaigns Observations and Modeling of the Green Ocean Amazon (GOAMAZON 2014) 2014.01.01, Martin, AMF Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Observations and Modeling of the Green Ocean Amazon Aerial Campaign 2014.02.15 - 2014.10.15 Lead Scientist : Scot Martin Description The hydrologic cycle of the Amazon Basin is one of the primary heat engines of the Southern Hemisphere. Any accurate climate model must succeed in a good description of the Basin, both in its natural state and in states perturbed by regional and global human activities. At the present time, however, tropical deep convection in a natural state is poorly understood

439

Tropical Cloud Life Cycle and Overlap Structure  

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

Tropical Cloud Life Cycle and Overlap Structure Vogelmann, Andrew Brookhaven National Laboratory Jensen, Michael Brookhaven National Laboratory Kollias, Pavlos Brookhaven National...

440

Tropical forest responses to increasing [CO2]: current knowledge and opportunities for future research  

SciTech Connect

Elevated atmospheric [CO2] (ca) will undoubtedly affect the metabolism of tropical forests worldwide; however, critical aspects of how tropical forests will respond remain largely unknown. Here we review the current state of knowledge about physiological and ecological responses, with the aim of providing a framework that can help to guide future experimental research. Modelling studies have indicated that elevated ca can potentially stimulate photosynthesis more in the tropics than at higher latitudes, because suppression of photorespiration by elevated ca increases with temperature. However, canopy leaves in tropical forests could also potentially reach a high temperature threshold under elevated ca that will moderate the rise in photosynthesis. Belowground responses, including fine root production, nutrient foraging, and soil organic matter processing, will be especially important to the integrated ecosystem response to elevated CO2. Water-use efficiency will increase as ca rises, potentially impacting upon soil moisture status and nutrient availability. Recruitment may be differentially altered for some functional groups, potentially decreasing ecosystem carbon storage. Whole-forest CO2 enrichment experiments are urgently needed to test predictions of tropical forest functioning under elevated ca. Smaller scale experiments in the understory and in gaps would also be informative, and could provide stepping stones toward stand-scale manipulations.

Cernusak, Lucas [Australian National University, Canberra, Australia; Winter, Klaus [Smithsonian Tropical Research Institute; Dalling, James [University of Illinois, Urbana-Champaign; Holtum, Joseph [James Cook University; Jaramillo, Carlos [Smithsonian Tropical Research Institute; Korner, Christian [University of Basel; Leakey, Andrew D.B. [University of Illinois; Norby, Richard J [ORNL; Poulter, Benjamin [Laboratoire des Sciences du Climat et de l'Environement, France; Turner, Benjamin [Smithsonian Tropical Research Institute; Wright, S. Joseph [Smithsonian Tropical Research Institute

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

Influence of Tropical Tropopause Layer Cooling on Atlantic Hurricane Activity  

E-Print Network (OSTI)

Virtually all metrics of Atlantic tropical cyclone activity show substantial increases over the past two decades. It is argued here that cooling near the tropical tropopause and the associated decrease in tropical cyclone ...

Solomon, Susan

442

Ocean Energy Resource Basics | Department of Energy  

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

Hydrogen & Fuel Cells Hydropower Ocean Ocean Thermal Energy Conversion Tidal Energy Wave Energy Ocean Resources Solar Wind Homes & Buildings Industry Vehicles & Fuels...

443

Ocean Thermal Extractable Energy Visualization: Final Technical...  

Office of Environmental Management (EM)

Ocean Thermal Extractable Energy Visualization: Final Technical Report Ocean Thermal Extractable Energy Visualization: Final Technical Report Report about the Ocean Thermal...

444

School of Ocean and Earth Science and Technology Building on 20 years of excellence and innovation  

E-Print Network (OSTI)

and accounts for 30% of the overhead generated at UH MÂŻanoa. SOEST offers a world-class undergraduate The Dean of SOEST humans have added to the atmosphere more than one quarter of its carbon dioxide since- ing intensity of the strongest tropical cyclones, notably in the Atlantic. For the first time

Wang, Yuqing

445

The circulation of the ocean is usually divided into two parts, a wind-driven circulation that  

E-Print Network (OSTI)

, Princeton, NJ 08540 #12;2 the solar energy reaching the lowest layers of the atmosphere during the winter southward through the Atlantic, around the tip of Africa, and into the ocean beyond. The Atlantic conveyor

446

Block-structured adaptive meshes and reduced grids for atmospheric general circulation models  

Science Journals Connector (OSTI)

...semi-Lagrangian shallow-water model on locally refined...Higgins1990Integration of the shallow water equations on the sphere...parallel adaptive mesh generator for atmospheric and oceanic simulationOcean...series to the shallow-water equations on sphereJ...

2009-01-01T23:59:59.000Z

447

Constructing a Merged Cloud-Precipitation Radar Dataset for Tropical Convective Clouds during the DYNAMO/AMIE Experiment at Addu Atoll  

SciTech Connect

To improve understanding of the convective processes key to the Madden-Julian-Oscillation (MJO) initiation, the Dynamics of the MJO (DYNAMO) and Atmospheric Radiation Measurement MJO Investigation Experiment (AMIE) collected four months of observations from three radars, the S-band Polarization Radar (S-Pol), the C-band Shared Mobile Atmospheric Research & Teaching Radar (SMART-R), and Ka-band Zenith Radar (KAZR) on Addu Atoll in the tropical Indian Ocean. This study compares the measurements from the S-Pol and SMART-R to those from the more sensitive KAZR in order to characterize the hydrometeor detection capabilities of the two scanning precipitation radars. Frequency comparisons for precipitating convective clouds and non-precipitating high clouds agree much better than non-precipitating low clouds for both scanning radars due to issues in ground clutter. On average, SMART-R underestimates convective and high cloud tops by 0.3 to 1.1 km, while S-Pol underestimates cloud tops by less than 0.4 km for these cloud types. S-Pol shows excellent dynamic range in detecting various types of clouds and therefore its data are well suited for characterizing the evolution of the 3D cloud structures, complementing the profiling KAZR measurements. For detecting non-precipitating low clouds and thin cirrus clouds, KAZR remains the most reliable instrument. However, KAZR is attenuated in heavy precipitation and underestimates cloud top height due to rainfall attenuation 4.3% of the time during DYNAMO/AMIE. An empirical method to correct the KAZR cloud top heights is described, and a merged radar dataset is produced to provide improved cloud boundary estimates, microphysics and radiative heating retrievals.

Feng, Zhe; McFarlane, Sally A.; Schumacher, Courtney; Ellis, Scott; Comstock, Jennifer M.; Bharadwaj, Nitin

2014-05-16T23:59:59.000Z

448

Infrasonic ambient ocean noise: Northeast Pacific Ocean  

Science Journals Connector (OSTI)

Measurements of ocean ambient noise were made at three widely separated deep?water bottom locations in the N. E. Pacific at eight frequencies in the range from 2.5–20.0 Hz for 40 consecutive days. Concurrent data on wind speed and wave height were collected. Analysis indicates that the spectrum level of infrasonicnoise is linearly related to the log of the wind speed above a threshold level. There is evidence that the noise can be directly associated with the wind rather than through the surface waves it produces. [Work supported by ONR.

Rudolph H. Nichols

1985-01-01T23:59:59.000Z

449

Sensitivity of Global Tropical Climate to Land Surface Processes: Mean State and Interannual Variability  

E-Print Network (OSTI)

to be made in a system that allows for atmosphere­ocean interactions. 1. Introduction Future projections influence on the surface energy and water budgets. The sensitivity to those processes is represented in the intensity of equatorial Pacific trades modified by convection over land. The results further demonstrate

Xue, Yongkang

450

Characterization of Trapped Lignin-Degrading Microbes in Tropical...  

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

Trapped Lignin-Degrading Microbes in Tropical Forest Soil. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil. Abstract: Lignin is often the most...

451

Incursion of the Pacific Ocean Water into the Indian Ocean  

Science Journals Connector (OSTI)

Using the data collected during the International Indian Ocean Expedition, maps showing the distribution of depth ... became clear that low-salinity water from the Pacific intrudes into the western Indian Ocean t...

G S Sharma; A D Gouveia…

1978-03-01T23:59:59.000Z

452

Climatic response to large summertime injections of smoke into the atmosphere: changes in precipitation and the Hadley circulation  

SciTech Connect

An atmospheric general circulation model (AGCM) has been initialized with a 150 Tg summertime injection of smoke from post-war fires over Europe, Asia and North America. The smoke is subject to large-scale and convectice transport, dry deposition, coagulation and precipitation scavenging. The Hadley circulation is shown to respond in three stages. In the first stage, which lasts about one week depending on initial conditions, the Hadley circulation doubles in intensity. As the smoke spreads across the equator, and as the troposphere becomes more stable, the Hadley cell then weakens until it becomes actually weaker than in the control climate. In the final stage, as the smoke is removed, the Hadley cell gradually returns towards the control. Surface precipitation generally decreases as a result of the smoke. By the fourth week following the injection, zonal-mean surface precipitation in the tropics and summer hemisphere midlatitudes are about half of those in the control climate. The decrease is most notable over land, ocean precipitation being reduced only in the tropics. Penetrating convective precipitation is greatly reduced at all latitudes; large-scale precipitation is enhanced, becoming the dominant mode of precipitation in the simulation. Precipitation scavenging is shown to be the dominant removal process for particles larger than one micron in diameter. As a result, the lifetime of large particles increases several-fold due to the reduction in precipitation and the ''self-lofting'' of the smoke. For particles smaller than one micron in diameter, precipitation scavenging is found to be a much less efficient removal mechanism than both coagulation, which is important during the first week following the injection, and dry deposition at later times. 16 refs., 23 figs.

Ghan, S.J.; MacCracken, M.C.; Walton, J.J.

1985-08-01T23:59:59.000Z

453

High-Latitude Ocean and Sea Ice Surface Fluxes: Requirements and Challenges for Climate Mark Bourassa1  

E-Print Network (OSTI)

temperatures, seasonal sea ice, and the remoteness of the regions all conspire to make observations difficult latitudes - the vertical exchanges of heat, momentum and material between the ocean, atmosphere and ice1 High-Latitude Ocean and Sea Ice Surface Fluxes: Requirements and Challenges for Climate Research

Gille, Sarah T.

454

Cecilia Bitz Atmospheric Sciences  

E-Print Network (OSTI)

in an eddy resolving ocean? And how does the heat affect Antarctic sea ice and ice shelves? Surface currents happens to the ocean and sea ice when westerly winds strengthen? Weddell Sea #12;0 10 20 30 40 50 60 0.1 degree Simulation 1 degree Simulation How does ocean heat transport change with increasing winds

455

Diurnal Precipitation Regimes in the Global Tropics  

Science Journals Connector (OSTI)

Diurnal variations of the global tropical precipitation are documented by using two complementary Tropical Rainfall Measuring Mission (TRMM) datasets (3B42 and 3G68) for 1998–2006 in an attempt to provide a unified view of the diurnal cycle and a ...

Kazuyoshi Kikuchi; Bin Wang

2008-06-01T23:59:59.000Z

456

Energy from the Ocean [and Discussion  

Science Journals Connector (OSTI)

...development among the ocean energy options, and other relatively...paper focuses on ocean thermal energy conversion (OTEC). However, much of the paper's content has relevance to the use of the other ocean energy sources. Techniques of ocean...

1982-01-01T23:59:59.000Z

457

U.S. DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC  

E-Print Network (OSTI)

. AUTOMATED PRECIPITATION DATA (MINI-STORM) ANALYSIS . . . . . . . . . . . . 46 5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 5.2 Grid Selection, Map Projection Selections

458

at Exchange Between Ocean and Atmosphere in the  

E-Print Network (OSTI)

The Trade Wind Zone Oceanography Pilot Study. Part IX: The sea-level wind field and wind stress values, July 1963 to June 1965. By Gunter R. Seckel, June 1970. iii + 66 pp.. 5 figs. 636. Oil pollution on Wake

459

Thomas H Zurbuchen, Department of Atmospheric, Oceanic and Space Sciences  

E-Print Network (OSTI)

College of Engineering, University of Michigan thomasz@umich.edu Exploring Plasmas Near Mercury: Solar Wind Driving and Surface Interac>ons #12;#12;Mercury Venus hemispherical instantaneous field of view (1.4 sr)! · Designed and built at University of Michigan! Mass: 1

460

College of Earth, Ocean, and Atmospheric Sciences Oregon State University  

E-Print Network (OSTI)

operating across the continental US on a 70 kilometer grid; MOCHA onshore-offshore MT experiment imaging area where the broad Alaska continental margin transitions to stable North American craton. Two years. Other field campaigns are planned. The NGF is involved with offshore EM field measurements supporting

Kurapov, Alexander

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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

U.S. DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC  

E-Print Network (OSTI)

Research at the National Marine Fisheries Service Galveston, Texas Laboratory There are 5 different kinds FISHERIES SERVICE Southeast Fisheries Science Center - Galveston Laboratory 4700 Avenue U, Galveston, TX Galveston Laboratory Copies of this coloring book can be downloaded at: http://galveston

462

UNITED STATES DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration  

E-Print Network (OSTI)

Department of Motor Vehicles DPS Distinct Population Segment DWH Deep Water Horizon EFH Essential Fish 181 1 #12;2 ACRONYMS AND ABBREVIATIONS °C Degrees Celsius CWA Clean Water Act CHEU Charlotte Harbor Take Statement MHWL Mean High Water Line MLW Mean Low Water MLLW Mean Lower Low Water NGVD National

463

NOAA National Climatic Data Center National Oceanic and Atmospheric Administration  

E-Print Network (OSTI)

-based operational Climate Data Records, which provide objective climate information from weather satellite data Environmental Satellite, Data, and Information Service National Climatic Data Center Asheville, North Carolina 8 Releasing Five New Satellite-Based Operational Climate Data Records 9 Assuring Launch Readiness

464

Journal of Atmospheric and Oceanic Technology EARLY ONLINE RELEASE  

E-Print Network (OSTI)

of Polar Research, Tachikawa, Japan Masaki Tsutsumi, National Institute of Polar Research, Tachikawa, Japan

Sato, Toru

465

Introduction to Atmosphere-Ocean J. H. LaCasce  

E-Print Network (OSTI)

Blindern 0315 Oslo, Norway j.h.lacasce@geo.uio.no #12;2 #12;Contents 1 Equations 9 1.1 Derivatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 2.5.2 Mass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 2.5.3 Energy wind . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 3.3 Hydrostatic balance

LaCasce, Joseph H.

466

Testing Components of New Community Isopycnal Ocean Circulation Model  

SciTech Connect

The ocean and atmosphere are both governed by the same physical laws and models of the two media have many similarities. However, there are critical differences that call for special methods to provide the best simulation. One of the most important difference is that the ocean is nearly opaque to radiation in the visible and infra-red part of the spectrum. For this reason water mass properties in the ocean are conserved along trajectories for long distances and for long periods of time. For this reason isopycnal coordinate models would seem to have a distinct advantage in simulating ocean circulation. In such a model the coordinate surfaces are aligned with the natural paths of near adiabatic, density conserving flow in the main thermocline. The difficulty with this approach is at the upper and lower boundaries of the ocean, which in general do not coincide with density surfaces. For this reason hybrid coordinate models were proposed by Bleck and Boudra (1981) in which Cartesian coordinates were used near the ocean surface and isopycnal coordinates were used in the main thermocline. This feature is now part of the HICOM model (Bleck, 2002).

Bryan, Kirk

2008-05-09T23:59:59.000Z

467

Sperm whale coda repertoires in the western Pacific Ocean  

Science Journals Connector (OSTI)

Sperm whales are social cetaceans that live in matrilineal family units and inhabit all major ocean basins from the tropics to polar regions. They produce stereotyped patterns of 3 to 40 broadband clicks termed “codas ” that typically occur within a period of less than 3 s. Coda repertoires can be assigned to a “vocal clan ” a type of social group used to define sperm whale population structure. Extensive studies of vocal clans have been conducted in the eastern tropical Pacific (ETP); however little is known about sperm whale coda repertoires in the western Pacific. We reviewed codas recorded from independent sperm whale groups that were acoustically and visually encountered during two marine mammal surveys conducted in the Northern Mariana Islands (10 groups) and Palau region (3 groups) in 2007 and 2012 respectively. Three bioacousticians qualitatively classified codas to type which indicated the presence of the “+1” and “regular” vocal clan. These data are now being analyzed using multivariate methods described by Rendell and Whitehead (2003) to quantitatively classify codas from each group. The identification of vocal clans within this region has implications for understanding the culturally linked stock distribution of sperm whales across the Pacific Ocean.

Elizabeth L. Ferguson; Thomas F. Norris; Cory A. Hom-Weaver; Kerry J. Dunleavy

2013-01-01T23:59:59.000Z

468

Shaw-JA  

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

Scanning Radiometer Measurements of Air-Sea Temperature Difference in the Tropical Western Pacific J. A. Shaw and J. H. Churnside National Oceanic and Atmospheric...

469

E-Print Network 3.0 - air research sst Sample Search Results  

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

Environmental and Remote Sensing Center Collection: Geosciences 3 Roles of Indian and Pacific Ocean Air-Sea Coupling in Tropical Atmospheric Variability Summary: , the...

470

Atmospheric Concentrations of CO2 from Mauna Loa, Hawaii  

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

Atmospheric Concentrations of CO2 from Mauna Loa, Hawaii Atmospheric Concentrations of CO2 from Mauna Loa, Hawaii The graphs on this page are generated from data taken from "Trends in Carbon Dioxide" page on the Department of Commerce/National Oceanic and Atmospheric Administration (NOAA) website. The NOAA website presents monthly and weekly atmospheric CO2 concentrations measured at the Mauna Loa Observatory in Hawaii. It offers weekly and monthly data, additional graphs, analysis, descriptions of how the data are collected, and an animation of historical changes in atmospheric CO2. Mauna Loa constitutes the longest record of direct measurements of CO2 in the atmosphere. The measurents were started by C. David Keeling of the Scripps Institution of Oceanography in March of 1958. Recent Monthly Average CO2

471

The Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA)  

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

LBA (Amazon) LBA (Amazon) The Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) Overview [LBA Logo] The Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) is an international research initiative conducted from 1995-2005 and led by Brazil. The LBA Project encompasses several scientific disciplines, or components. The LBA-ECO component focuses on the question: "How do tropical forest conversion, regrowth, and selective logging influence carbon storage, nutrient dynamics, trace gas fluxes, and the prospect for sustainable land use in Amazonia?" The Amazon rain forest or Amazonia, is the largest remaining expanse of tropical rain forest on Earth, harboring approximately one-third of all Earth's species. Although the rain forest's area is so large that it

472

Acoustic sounding of the tropical marine boundary layer during GATE  

Science Journals Connector (OSTI)

A vertically pointed monostatic acoustic sounder was installed on the NOAA ShipOCEANOGRAPHER during the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE). The sounderantenna was mounted on a gyrocontrolled platform to compensate for the ship'spitch and roll motions. Extensive measures such as mounting the antenna assembly on a vibration isolator and installing absorbing cuffs had to be taken to reduce interference by ship?generated noise. Back?scattered acoustic data obtained from up to 850 m height describe the tropical marine boundary layer in unique and hitherto unseen detail. During undisturbed weather conditions the facsimile record showed convective plumes rising from the surface of the water up to 400 m. Storm?generated disturbances resulted in a substantial modification of the boundary layer; low?level multilayered undulating inversions formed from cool outflow currents. The inversions persisted for up to 16 hours. Low?level patchy cumulus clouds produced characteristic hummock?shaped acoustic echoes. Analysis of the Doppler frequency shift of the returns allowed the determination of vertical velocities within these clouds and underlying convective plumes.

P. A. Mandics; J. E. Gaynor; F. F. Hall Jr.

1976-01-01T23:59:59.000Z

473

Why Sequence Subarctic Pacific Ocean?  

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

Sequence Subarctic Pacific Ocean? Sequence Subarctic Pacific Ocean? The subarctic Pacific Ocean is one of the areas considered particularly vulnerable to acidification, which could affect the ocean's ability to act as a carbon sink. Global warming affects the food webs and biodiversity in marine ecosystems, especially in regions known as oxygen minimum zones where key components of the global carbon cycle take place. Oxygen minimum zones are found between 200 and 1,000 meters below sea level in the subarctic Pacific, the eastern South Pacific Ocean, the northern parts of the Indian Ocean and Arabian Sea, and off southwestern Africa. As global warming continues, researchers believe the oxygen levels in the oceans will decrease, a change that will extend the boundaries of the oxygen minimum

474

Graduate Opportunities in Atmospheric Modeling to Understand Greenhouse Gas Emissions  

E-Print Network (OSTI)

and energy infrastructure. The graduate projects, fully funded by the National Oceanic and Atmospheric greenhouse gas emissions. Samples of guiding questions as part of the projects include: ďż˝ What can explain; (3) demonstrated computer skills (e.g., Linux, R, Matlab, Fortran, GIS); (4) excellent oral

Lin, John Chun-Han

475

Model projections of atmospheric steering of Sandy-like superstorms  

Science Journals Connector (OSTI)

...Polvani Adam H. Sobel aDepartment of Atmospheric Science, Colorado State University, Fort Collins, CO 80523;bDivision of Ocean...N Botzen WJW Emanuel K de Moel H ( 2013 ) Low-probability flood risk modeling for New York City . Risk Anal 33 ( 5 ): 772...

Elizabeth A. Barnes; Lorenzo M. Polvani; Adam H. Sobel

2013-01-01T23:59:59.000Z

476

Response and impact of equatorial ocean dynamics and tropical instability waves in the tropical Atlantic under global warming  

E-Print Network (OSTI)

Atlantic under global warming: A regional coupled downscaling study Hyodae Seo1,2 and ShangPing Xie1. Under global warming, both global and regional models exhibit an increased (decreased) rainfall thermal stratification is suggested to be more important under global warming. The strengthened upwelling

Xie, Shang-Ping

477

Atmospheric Carbon Dioxide and the Global Carbon Cycle: The Key Uncertainties  

DOE R&D Accomplishments (OSTI)

The biogeochemical cycling of carbon between its sources and sinks determines the rate of increase in atmospheric CO{sub 2} concentrations. The observed increase in atmospheric CO{sub 2} content is less than the estimated release from fossil fuel consumption and deforestation. This discrepancy can be explained by interactions between the atmosphere and other global carbon reservoirs such as the oceans, and the terrestrial biosphere including soils. Undoubtedly, the oceans have been the most important sinks for CO{sub 2} produced by man. But, the physical, chemical, and biological processes of oceans are complex and, therefore, credible estimates of CO{sub 2} uptake can probably only come from mathematical models. Unfortunately, one- and two-dimensional ocean models do not allow for enough CO{sub 2} uptake to accurately account for known releases. Thus, they produce higher concentrations of atmospheric CO{sub 2} than was historically the case. More complex three-dimensional models, while currently being developed, may make better use of existing tracer data than do one- and two-dimensional models and will also incorporate climate feedback effects to provide a more realistic view of ocean dynamics and CO{sub 2} fluxes. The instability of current models to estimate accurately oceanic uptake of CO{sub 2} creates one of the key uncertainties in predictions of atmospheric CO{sub 2} increases and climate responses over the next 100 to 200 years.

Peng, T. H.; Post, W. M.; DeAngelis, D. L.; Dale, V. H.; Farrell, M. P.

1987-12-00T23:59:59.000Z

478

Light extinction in the atmosphere  

SciTech Connect

Atmospheric aerosol particles originating from natural sources, such as volcanos and sulfur-bearing gas emissions from the oceans, and from human sources, such as sulfur emissions from fossil fuel combustion and biomass burning, strongly affect visual air quality and are suspected to significantly affect radiative climate forcing of the planet. During the daytime, aerosols obscure scenic vistas, while at night they diminish our ability to observe stellar objects. Scattering of light is the main means by which aerosols attenuate and redistribute light in the atmosphere and by which aerosols can alter and reduce visibility and potentially modify the energy balance of the planet. Trends and seasonal variability of atmospheric aerosol loading, such as column-integrated light extinction or optical depth, and how they may affect potential climate change have been difficult to quantify because there have been few observations made of important aerosol optical parameters, such as optical depth, over the globe and over time and often these are of uneven quality. To address questions related to possible climate change, there is a pressing need to acquire more high-quality aerosol optical depth data. Extensive deployment of improved solar radiometers over the next few years will provide higher-quality extinction data over a wider variety of locations worldwide. An often overlooked source of turbidity data, however, is available from astronomical observations, particularly stellar photoelectric photometry observations. With the exception of the Project ASTRA articles published almost 20 years ago, few of these data ever appear in the published literature. This paper will review the current status of atmospheric extinction observations, as highlighted by the ASTRA work and augmented by more recent solar radiometry measurements.

Laulainen, N.

1992-06-01T23:59:59.000Z

479

Climate change in the sea: the implications of increasing the carbon dioxide inputs to the surface ocean  

SciTech Connect

The oceans are estimated to be absorbing one-third of the fossil fuel carbon released into the atmosphere, a process that is expected to change ocean carbon chemistry. I will present data from the Washington coast showing ocean pH declines and changes to the shell chemistry of bivalves. I will discuss implications of carbon cycle changes for marine species, including insights from a coastal area where I have worked for more than 24 years. I will summarize what we know to date about this process of “ocean acidification”.

Pfister, Cathy [University of Chicago

2012-12-23T23:59:59.000Z

480

Investigating the Role of Ocean–Atmosphere Coupling in the North Pacific Ocean  

Science Journals Connector (OSTI)

Air–sea interaction over the North Pacific is diagnosed using a simple, local coupled autoregressive model constructed from observed 7-day running-mean sea surface temperature (SST) and 2-m air temperature TA anomalies during the extended winter ...

Dimitry Smirnov; Matthew Newman; Michael A. Alexander

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tropical atmosphere ocean" 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.


481

E-Print Network 3.0 - atlantic tropical cyclones Sample Search...  

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

between Atlantic tropical cyclone power... dif- ferent inferences about late-twenty-first-century Atlantic tropical cyclone activity9 , ranging... Atlantic tropical ... Source:...

482

Tropical Forest Foundation | Open Energy Information  

Open Energy Info (EERE)

Tropical Forest Foundation Tropical Forest Foundation Jump to: navigation, search Logo: Tropical Forest Foundation Name Tropical Forest Foundation Address 2121 Eisenhower Ave. Suite 200 Place Alexandria, Virginia Zip 22314 Region Northeast - NY NJ CT PA Area Phone number 703.518.8834 Website http://tropicalforestfoundatio Coordinates 38.8013734°, -77.0668734° 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":38.8013734,"lon":-77.0668734,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

483

Nasa's Tropical Cloud Systems and Processes Experiment  

Science Journals Connector (OSTI)

In July 2005, the National Aeronautics and Space Administration investigated tropical cyclogenesis, hurricane structure, and intensity change in the eastern North Pacific and western Atlantic using its ER-2 high-altitude research aircraft. The ...

J. Halverson; M. Black; R. Rogers; S. Braun; G. Heymsfield; D. Cecil; M. Goodman; R. Hood; A. Heymsfield; T. Krishnamurti; G. McFarquhar; M. J. Mahoney; J. Molinari; J. Turk; C. Velden; D-L. Zhang; E. Zipser; R. Kakar

2007-06-01T23:59:59.000Z

484

The Dynamics and Predictability of Tropical Cyclones  

E-Print Network (OSTI)

to pinpoint sources of error in forecasts of tropical cyclone formation and intensification. Despite significant differences in methodology, storm environment and development, it is found in both situations that high convective instability (CAPE) and mid...

Sippel, Jason A.

2010-01-15T23:59:59.000Z

485

An Analytical Model for Tropical Relative Humidity  

Science Journals Connector (OSTI)

An analytical model is derived for tropical relative humidity using only the Clausius–Clapeyron relation, hydrostatic balance, and a bulk-plume water budget. This theory is constructed for radiative–convective equilibrium and compared against a ...

David M. Romps

2014-10-01T23:59:59.000Z

486

Tropical Transition of the 2001 Australian Duck  

Science Journals Connector (OSTI)

In March 2001, a hybrid low pressure system, unofficially referred to as Donald (or the Duck), developed in the Tasman Sea under tropical–extratropical influence, making landfall on the southeastern Australian coast. Here, it is shown that ...

Luke Andrew Garde; Alexandre Bernardes Pezza; John Arthur Tristram Bye

2010-06-01T23:59:59.000Z

487

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 27, NO. 2, 2010, 243252 Mesoscale Barotropic Instability of Vortex Rossby  

E-Print Network (OSTI)

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 27, NO. 2, 2010, 243­252 Mesoscale Barotropic Instability of Vortex Rossby Waves in Tropical Cyclones ZHONG Wei1 ( Í), LU Han-Cheng1 (ö ), and Da-Lin ZHANG2 1 Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101 2 Department

Zhang, Da-Lin

488

Extent of Hadley circulations in dry atmospheres Robert L. Korty1  

E-Print Network (OSTI)

Extent of Hadley circulations in dry atmospheres Robert L. Korty1 and Tapio Schneider2 Received 28] The subtropical terminus of the Hadley circulation is interpreted as the latitude poleward of which vertical wave (convergence of meridional eddy angular momentum fluxes) and marks the transition from the tropical Hadley cell

489

Sensitivities of zonal mean atmospheric circulation to SST warming in an aquaplanet model  

E-Print Network (OSTI)

warming, the Hadley cell is intensified in the deep tropics, yet the Hadley cell boundary contracts, storm tracks, or the boundaries of Hadley cell circulations under global warming [e.g., Yin, 2005]. In the troposphere, however, the atmosphere displays nearly opposite changes in the Hadley cell width

Chen, Gang

490

Pacific Ocean Contribution to the Asymmetry in Eastern Indian Ocean Variability  

Science Journals Connector (OSTI)

Variations in eastern Indian Ocean upper-ocean thermal properties are assessed for the period 1970–2004, with a particular focus on asymmetric features related to opposite phases of Indian Ocean dipole events, using high-resolution ocean model ...

Caroline C. Ummenhofer; Franziska U. Schwarzkopf; Gary Meyers; Erik Behrens; Arne Biastoch; Claus W. Böning

2013-02-01T23:59:59.000Z

491

Contribution of oceanic gas hydrate dissociation to the formation of Arctic Ocean methane plumes  

SciTech Connect

Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of carbon into the atmosphere. Because methane is a powerful greenhouse gas, such a release could have dramatic climatic consequences. The recent discovery of active methane gas venting along the landward limit of the gas hydrate stability zone (GHSZ) on the shallow continental slope (150 m - 400 m) west of Svalbard suggests that this process may already have begun, but the source of the methane has not yet been determined. This study performs 2-D simulations of hydrate dissociation in conditions representative of the Arctic Ocean margin to assess whether such hydrates could contribute to the observed gas release. The results show that shallow, low-saturation hydrate deposits, if subjected to recently observed or future predicted temperature changes at the seafloor, can release quantities of methane at the magnitudes similar to what has been observed, and that the releases will be localized near the landward limit of the GHSZ. Both gradual and rapid warming is simulated, along with a parametric sensitivity analysis, and localized gas release is observed for most of the cases. These results resemble the recently published observations and strongly suggest that hydrate dissociation and methane release as a result of climate change may be a real phenomenon, that it could occur on decadal timescales, and that it already may be occurring.

Reagan, M.; Moridis, G.; Elliott, S.; Maltrud, M.

2011-06-01T23:59:59.000Z

492

Halocarbon and Other Atmospheric Trace Species (HATS) | Data.gov  

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

Halocarbon and Other Atmospheric Trace Species (HATS) Halocarbon and Other Atmospheric Trace Species (HATS) Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Halocarbon and Other Atmospheric Trace Species (HATS) Dataset Summary Description The general mission of the Halocarbons and other Atmospheric Trace Species group is to quantify the distributions and magnitudes of sources and sinks for atmospheric nitrous oxide (N2O) and halogen containing compounds. HATS utilizes numerous types of platforms, including ground-based stations, towers, ocean vessels, aircraft, and balloons, to accomplish its mission. For a detailed mission statement, consult our FAQ. Tags {"nitrous oxide","sulfur hexaflouride",CFC-11,CFC-12,CFC-113,CCl4,CH3CCl3,CH3Cl,halon-1211,HCFC-22,HCFC-142b,halocarbons,chromatograph,aircraft,balloons,vessels,ships,towers,"natural resources",environment,air,"GHG "}

493

Comparison of the Carbon System Parameters at the Global CO2 Survey Crossover Locations in the North and South Pacific Ocean, 1990-1996  

SciTech Connect

As a collaborative program to measure global ocean carbon inventories and provide estimates of the anthropogenic carbon dioxide (C02) uptake by the oceans. the National Oceanic and Atmospheric Administration and the U.S. Department of Energy have sponsored the collection of ocean carbon measurements as part of the World Ocean Circulation Experiment and Ocean-Atmosphere Carbon Exchange Study cruises. The cruises discussed here occurred in the North and South Pacific from 1990 through 1996. The carbon parameters from these 30 crossover locations have been compared to ensure that a consistent global data set emerges from the survey cruises. !'he results indicate that for dissolved inorganic carbon. fugacity of C02• and pH. the a~:,rreements at most crossover locations are well within the design specifications for the global CO) survey: whereas. in the case of total alkaliniry. the agreement between crossover locations is not as close.

Feely, Richard A [NOAA, Pacific Marine Environmental Laboratory (PMEL); Lamb, Marilyn F. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Greeley, Dana J. [NOAA, Pacific Marine Environmental Laboratory (PMEL); Wanninkhof, Rik [NOAA, Atlantic Oceanographic and Meteorological Laboratory (AOML)

1999-10-01T23:59:59.000Z

494

ARM - Lesson Plans: Tropical Western Pacific  

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

of Gases Microclimate Moving Water and Waves Observing Wind Speed and Cloudiness Ocean Currents Outgassing Past Sea Level Data Plant Growth and Carbon Dioxide Planting...

495

Tropical Cyclone Simulation and Response to CO2 Doubling in the GFDL CM2.5 High-Resolution Coupled Climate Model  

Science Journals Connector (OSTI)

Global tropical cyclone (TC) activity is simulated by the Geophysical Fluid Dynamics Laboratory (GFDL) Climate Model, version 2.5 (CM2.5), which is a fully coupled global climate model with a horizontal resolution of about 50 km for the atmosphere ...

Hyeong-Seog Kim; Gabriel A. Vecchi; Thomas R. Knutson; Whit G. Anderson; Thomas L. Delworth; Anthony Rosati; Fanrong Zeng; Ming Zhao

2014-11-01T23:59:59.000Z

496

Ten Years of Measurements of Tropical Upper-Tropospheric Water Vapor by MOZAIC. Part I: Climatology, Variability, Transport, and Relation to  

E-Print Network (OSTI)

the International Satellite Cloud Climatology Project (ISCCP). 1. Introduction Water vapor is the key atmosphericTen Years of Measurements of Tropical Upper-Tropospheric Water Vapor by MOZAIC. Part I: Climatology, Variability, Transport, and Relation to Deep Convection ZHENGZHAO LUO, DIETER KLEY,* AND RICHARD H. JOHNSON

Lombardi, John R.

497

Water Vapor Budget in a Developing Tropical Cyclone and Its Implication for Tropical Cyclone Formation  

Science Journals Connector (OSTI)

Evolution of the water vapor budget from the tropical wave stage to the tropical cyclone stage is examined using a high-resolution numerical model simulation. The focus is on a time window from 27 h prior to genesis to 9 h after genesis, and the ...

Cody Fritz; Zhuo Wang

2014-11-01T23:59:59.000Z

498

Land use change and carbon exchange in the tropics. I. Detailed estimates for Costa Rice, Panama, Peru, and Bolivia  

SciTech Connect

This group, composed of modelers working in conjunction with tropical ecologists, has produced a simulation model that quantifies the net carbon exchange between tropical vegetation and the atmosphere due to land use change. The model calculates this net exchange by combining estimates of land use change with several estimates of the carbon stored in tropical vegetation and general assumptions about the fate of cleared vegetation. In this report, the authors use estimates of land use and carbon of land use and carbon storage organized into six life zone (sensu Holdridge) categories to calculate the exchange between the atmosphere and the vegetation of four tropical countries. Their analyses of these countries indicate that this life zone approach has several advantages because (a) the carbon content of vegetation varies significantly among life zones, (b) much of the land use change occurs in life zones of only moderate carbon storage, and (c) the fate of cleared vegetation varies among life zones. Their analyses also emphasize the importance of distinguishing between temporary and permanent land use change, as the recovery of vegetation on abandoned areas decreases the net release of carbon due to clearing. They include sensitivity analysis of those factors that they found to be important but are difficult to quantify at present.

Hall, C.A.S.; Detwiler, R.P.; Bogdonoff, P.; Underhill, S.

1985-01-01T23:59:59.000Z

499

PCBs and OCPs on a East-to-West Transect: The Importance of Major Currents and Net Volatilization for PCBs in the Atlantic Ocean  

Science Journals Connector (OSTI)

PCBs and OCPs on a East-to-West Transect: The Importance of Major Currents and Net Volatilization for PCBs in the Atlantic Ocean ... In summary, we collected and analyzed samples collected across the tropical Atlantic to deduce whether (i) there were significant east–west and north–south gradients of selected PCB congeners and OCPs; (ii) the Atlantic Ocean was a net sink or secondary source of PCBs and OCPs; (iii) ocean current and river plumes would affect the presence and air–water gradients of selected POPs; and (iv) to compare active and passive sampling approaches for POPs. ... Iwata, H.; Tanabe, S.; Sakai, N.; Tatsukawa, R.Distribution of Persistent Organochlorines in the Oceanic Air and Surface Seawater and the Role of Oceans on Their Global Transport and Fate Environ. ...

Rainer Lohmann; Jana Klanova; Petr Kukucka; Shifra Yonis; Kevyn Bollinger

2012-02-02T23:59:59.000Z

500

Geoengineering Downwelling Ocean Currents: A Cost Assessment  

Science Journals Connector (OSTI)

Downwelling ocean currents carry carbon into the deep ocean (the solubility pump), and play a ... weakening of the NADW is modification of downwelling ocean currents, by an increase in carbon concentration or ......

S. Zhou; P. C. Flynn

2005-07-01T23:59:59.000Z