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Note: This page contains sample records for the topic "twp tropical western" 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
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1

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

2

ARM - TWP Science  

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

PacificTWP Science PacificTWP Science TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Science New VSAT dish installed in the Tropical Western Pacific. New VSAT dish installed in the Tropical Western Pacific. The following are the basic science goals of the TWP component of the ARM Climate Research Facility: Determine the magnitude of the surface radiation budget terms and determine their spatial and temporal variability. Identify bulk and optical properties of clouds in the TWP and how these properties affect the radiation budget. Understand the linkages among sea surface temperature,

3

ARM - Visiting the TWP  

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

PacificVisiting the TWP PacificVisiting the TWP TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Visiting the TWP Nauru Island from the air. Nauru Island from the air. The Tropical Western Pacific site consists of three diverse climate research facilities in Papua New Guinea, the Republic of Nauru, and Australia. Each facility has its own operating procedures and health and safety issues. Safety First! Before visiting any of the three TWP facilities, you must do the following: Submit a Site and Computer Access Request Form Read the Safety Plan for the facility you plan to visit: TWP Site Visit Safety Procedure

4

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

5

ARM - TWP Nauru Site  

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

Nauru Site Nauru Site TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Nauru Site Location: 0° 31' 15.6" S, 166° 54' 57.60" E Altitude: 7.1 meters The Nauru facility was established in November 1998 as the second TWP climate research station. It is situated in the Denigomodu district on Nauru Island, the Republic of Nauru, which is located in the western South Pacific, approximately 1,200 miles northeast of Papua New Guinea. The ARM Program selected this location because it is on the eastern edge of the Pacific warm pool under La Niña conditions, which affect weather patterns

6

TWP Nauru Site  

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

Nauru Site Nauru Site TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Nauru Site Location: 0° 31' 15.6" S, 166° 54' 57.60" E Altitude: 7.1 meters The Nauru facility was established in November 1998 as the second TWP climate research station. It is situated in the Denigomodu district on Nauru Island, the Republic of Nauru, which is located in the western South Pacific, approximately 1,200 miles northeast of Papua New Guinea. The ARM Program selected this location because it is on the eastern edge of the Pacific warm pool under La Niña conditions, which affect weather patterns

7

Anvil Characteristics as Seen by C-POL during the Tropical Warm Pool International Cloud Experiment (TWP-ICE)  

Science Conference Proceedings (OSTI)

The Tropical Pacific Warm Pool International Cloud Experiment (TWP-ICE) took place in Darwin, Australia, in early 2006. C-band radar data were used to characterize tropical anvil (i.e., thick, nonprecipitating cloud associated with deep ...

Kaycee Frederick; Courtney Schumacher

2008-01-01T23:59:59.000Z

8

ARM - TWP Contacts  

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

Contacts Contacts TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Contacts Site Oversight - Kim Nitschke, Los Alamos National Laboratory Site Manager - Paul Ortega, Los Alamos National Laboratory Site Operations Manager - Matt Gould, Australian Bureau of Meteorology Site Scientist - Chuck Long, Pacific Northwest National Laboratory Tropical Western Pacific Office Mailing Address: Los Alamos National Laboratory PO Box 1663, MS J577 Los Alamos, NM 87545 U.S.A. Shipping Address: SM-30 Bikini Atoll Road TA-51, Bldg. 82, DP 01U Attn: NAME, MS J577 Los Alamos, NM 87545 U.S.A. Phone: 505.667.1186

9

A Climatology of Surface Cloud Radiative Effects at the ARM Tropical Western Pacific Sites  

Science Conference Proceedings (OSTI)

Cloud radiative effects on surface downwelling fluxes are investigated using datasets from the Atmospheric Radiation Measurement Program (ARM) sites in the tropical western Pacific Ocean (TWP) region. The Nauru Island (Republic of Nauru) and ...

Sally A. McFarlane; Charles N. Long; Julia Flaherty

2013-04-01T23:59:59.000Z

10

The Radiative, Cloud, and Thermodynamic Properties of the Major Tropical Western Pacific Cloud Regimes  

Science Conference Proceedings (OSTI)

This study investigates the radiative, cloud, and thermodynamic characteristics of the atmosphere separated into objectively defined cloud regimes in the tropical western Pacific (TWP). A cluster analysis is applied to 2 yr of daytime-only data ...

Christian Jakob; George Tselioudis; Timothy Hume

2005-04-01T23:59:59.000Z

11

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.

12

TWP Darwin Site  

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

Darwin Site Darwin Site TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts TWP Darwin Site Location: 12° 25' 28.56" S, 130° 53' 29.75" E Altitude: 29.9 meters The third TWP climate research facility was established in April 2002 in Darwin, Northern Territory, Australia. The facility is situated adjacent to the Australian Bureau of Meteorology's (BOM) Meteorological Office near Darwin International Airport. Darwin was chosen because it meets the scientific goal of the ARM Program, providing a unique set of climate regimes that are not seen at the other TWP facilities. Annually, Darwin

13

TWP93.0100104 DOC#: TWP-DOC-1.4 SCIENCE AND SITING STRATEGY FOR THE  

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

TWP93.0100104 TWP93.0100104 DOC#: TWP-DOC-1.4 SCIENCE AND SITING STRATEGY FOR THE TROPICAL WESTERN PACIFIC ARM CART LOCALE Thomas P. Ackerman The Pennsylvania State University Bill Clements Fairley Barnes Los Alamos National Laboratory David S. Renné National Renewable Energy laboratory Science and Siting Strategy for the Tropical Western Pacific ARM CART Locale Ackennan, T., B. Clements, F. Barnes, and D. Renne DISCLAIMER This is a working document of the Tropical Western Pacific Program of the United States Department of Energy's Atmospheric Radiation Measurement Program. It is updated periodically and this release may not reflect the most current status of the program. It should not be quoted without consultation with the authors and specific reference to this disclaimer.

14

Anvil characteristics as seen by C-POL during the Tropical Warm Pool International Cloud Experiment (TWP-ICE)  

E-Print Network (OSTI)

The Tropical Pacific Warm Pool International Cloud Experiment (TWP-ICE) took place in Darwin, Australia in early 2006. C-band radar data from this experiment were used to characterize tropical anvil areal coverage, height, and thickness during the month-long field campaign. The morphology, evolution, and longevity of the anvil were analyzed as well as the relationship of the anvil to the rest of the precipitating system. In addition, idealized in-cloud radiative heating profiles were created based on the anvil observations. The anvil was separated into mixed (i.e., echo base below 6 km) and ice only categories. The experiment areal average coverage for both types of anvil was between 4-5% of the radar grid. Ice anvil thickness averaged 2.8 km and mixed anvil thickness averaged 6.7 km. No consistent diurnal signal was seen in the anvil, implying that the life cycle of the parent convection was of first order importance in determining the anvil height, thickness, and area. Areal peaks show that mixed anvil typically formed out of the stratiform region. Peak production in ice anvil usually followed the mixed anvil peak by 1-3 hr. Anvil typically lasted 4-10 hr after the initial convective rain area peak. The TWP-ICE experienced three distinct regimes: the active monsoon, dry monsoon, and break periods. During the entire experiment (except the active monsoon period) there was a strong negative correlation between ice anvil thickness and ice anvil height, a strong positive correlation between ice anvil area and thickness, and a greater variance in ice anvil bottom than ice anvil top. Anvil produced during the active regime had the most dramatic in-cloud radiative response with a maximum cooling of 0.45?° K day-1 at 12 km, a maximum heating of 3?° K day-1 at 9 km, and a secondary maximum heating of 1.2?° K day-1 at 5 km.

Frederick, Kaycee Loretta

2006-12-01T23:59:59.000Z

15

A TWP-ICE High-Level Cloud Case Study  

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

A TWP-ICE High-Level Cloud Case Study Mace, Gerald University of Utah Category: Field Campaigns The Tropical Warm Pool International Cloud Experiment (TWP ICE) was conducted near...

16

Darwin: The Third DOE ARM TWP ARCS Site  

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

Darwin: The Third DOE ARM TWP ARCS Site Darwin: The Third DOE ARM TWP ARCS Site W. E. Clements and L. Jones Los Alamos National Laboratory, Los Alamos, New Mexico T. Baldwin Special Services Unit Australian Bureau of Meteorology Melbourne, Australia K. Nitschke South Pacific Regional Environment Programme Apia, Samoa Introduction The U.S. Department of Energy's (DOE's) Atmospheric Radiation Measurement (ARM) Program began operations in its Tropical Western Pacific (TWP) locale in October 1996 when the first Atmospheric Radiation and Cloud Station (ARCS) began collecting data on Manus Island in Papua New Guinea (PNG). Two years later, in November 1998 a second ARCS began operations on the island of Nauru in the Central Pacific. Now a third ARCS has begun collecting data in Darwin, Australia. See Figure 1 for

17

TWP Island Cloud Trail Studies  

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

Pacific Island Cloud Trail Studies Pacific Island Cloud Trail Studies W. M. Porch Los Alamos National Laboratory Los Alamos, New Mexico S. Winiecki University of Chicago Chicago, Illinois Introduction Images and surface temperature measurements from the U.S. Department of Energy (DOE) Multi- spectral Thermal Imaging (MTI) satellite are combined with geostationary meteorological satellite (GMS) images during 2000 and 2001 to better understand cloud trail formation characteristics from the Atmospheric Radiation Measurement (ARM) Tropical Western Pacific (TWP) site. Figure 1 shows a comparison on two consecutive days in December 2000. The day for which a cloud trail developed was more moist and cooler at the altitude the cloud developed (about 600 m) and there was very little

18

Tropical Warm Pool International Cloud Experiment (TWP-ICE): Cloud and Rain Characteristics in the Australian Monsoon  

SciTech Connect

The impact of oceanic convection on its environment and the relationship between the characteristics of the convection and the resulting cirrus characteristics is still not understood. An intense airborne measurement campaign combined with an extensive network of ground-based observations is being planned for the region near Darwin, Northern Australia, during January-February, 2006, to address these questions. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) will be the first field program in the tropics that attempts to describe the evolution of tropical convection, including the large scale heat, moisture, and momentum budgets, while at the same time obtaining detailed observations of cloud properties and the impact of the clouds on the environment. The emphasis will be on cirrus for the cloud properties component of the experiment. Cirrus clouds are ubiquitous in the tropics and have a large impact on their environment but the properties of these clouds are poorly understood. A crucial product from this experiment will be a dataset suitable to provide the forcing and testing required by cloud-resolving models and parameterizations in global climate models. This dataset will provide the necessary link between cloud properties and the models that are attempting to simulate them. The experiment is a collaboration between the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, the Bureau of Meteorology (BoM), the National Aeronautics and Space Administration (NASA), the European Commission DG RTD-1.2, and several United States, Australian, Canadian, and European Universities. This experiment will be undertaken over a 4-week period in early 2006. January and February corresponds to the wet phase of the Australia monsoon. This season has been selected because, despite Darwins coastal location, the convection that occurs over and near Darwin at this time is largely of maritime origin with a large fetch over water. Based on previous experiments, the convection appears typical of maritime convection with widespread convection that has complex organization, but is not as deep or as intense as continental or coastal convection. Therefore, it is expected that the convection and cloud characteristics will be representative of conditions typical for wide areas of the tropics.

PT May; C Jakob; JH Mather

2004-05-30T23:59:59.000Z

19

ARM - PI Product - Cloud Properties and Radiative Heating Rates for TWP  

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

ProductsCloud Properties and Radiative Heating Rates for ProductsCloud Properties and Radiative Heating Rates for TWP Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Cloud Properties and Radiative Heating Rates for TWP 2002.01.01 - 2012.02.08 Site(s) TWP General Description A cloud properties and radiative heating rates dataset is presented where cloud properties retrieved using lidar and radar observations are input into a radiative transfer model to compute radiative fluxes and heating rates at three ARM sites located in the Tropical Western Pacific (TWP) region. The cloud properties retrieval is a conditional retrieval that applies various retrieval techniques depending on the available data, that is if lidar, radar or both instruments detect cloud. This Combined Remote

20

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

Note: This page contains sample records for the topic "twp tropical western" 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

Tropical Western Pacific: A Year in Darwin  

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

Richland, Washington L. Jones, W. M. Porch, and A. Haruta Los Alamos National Laboratory Los Alamos, New Mexico Introduction In March 2002, the third Tropical Western...

22

Validation of Cloud Properties Derived from GOES-9 Over the ARM TWP Region  

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

Cloud Properties Derived from Cloud Properties Derived from GOES-9 Over the ARM TWP Region M. M. Khaiyer, M. L. Nordeen, D. R. Doelling, and V. Chakrapani Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis and W. L. Smith, Jr. Atmospheric Sciences National Aeronautic and Space Administration Langley Research Center Hampton, Virginia Introduction Satellite data are essential for monitoring clouds and radiative fluxes where ground-based instruments are unavailable. On April 24, 2003, the ninth geostationary operational environmental satellite (GOES-9) began operational coverage of the Tropical Western Pacific (TWP), replacing the failing fifth geostationary meteorological satellite (GMS-5). The GOES-9 imager provides the opportunity for enhanced monitoring of clouds and radiation over the TWP because it has better spatial resolution and

23

ARM Research In The Equatorial Western Pacific: A Decade And Counting  

Science Conference Proceedings (OSTI)

The tropical western Pacific (TWP) is an important climatic region. Strong solar heating, warm sea surface temperatures, and the annual progression of the intertropical convergence zone (ITCZ) across this region generate abundant convective systems, which ...

C. N. Long; S. A. McFarlane; A. Del Genio; P. Minnis; T. P. Ackerman; J. Mather; J. Comstock; G. G. Mace; M. Jensen; C. Jakob

2013-05-01T23:59:59.000Z

24

A Climatology of Surface Cloud Radiative Effects at the ARM Tropical Western Pacific Sites  

SciTech Connect

Cloud radiative effects on surface downwelling fluxes are investigated using long-term datasets from the three Atmospheric Radiation Measurement (ARM) sites in the Tropical Western Pacific (TWP) region. The Nauru and Darwin sites show significant variability in sky cover, downwelling radiative fluxes, and surface cloud radiative effect (CRE) due to El Nio and the Australian monsoon, respectively, while the Manus site shows little intra-seasonal or interannual variability. Cloud radar measurement of cloud base and top heights are used to define cloud types so that the effect of cloud type on the surface CRE can be examined. Clouds with low bases contribute 71-75% of the surface shortwave (SW) CRE and 66-74% of the surface longwave (LW) CRE at the three TWP sites, while clouds with mid-level bases contribute 8-9% of the SW CRE and 12-14% of the LW CRE, and clouds with high bases contribute 16-19% of the SW CRE and 15-21% of the LW CRE.

McFarlane, Sally A.; Long, Charles N.; Flaherty, Julia E.

2013-04-01T23:59:59.000Z

25

Cloud Microphysical and Radiative Properties Derived from MODIS, VIRS, AVHRR, and GMS Data Over the Tropical Western Pacific  

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

Microphysical and Radiative Properties Derived Microphysical and Radiative Properties Derived from MODIS, VIRS, AVHRR, and GMS Data Over the Tropical Western Pacific G. D. Nowicki, M. L. Nordeen, P. W. Heck, D. R. Doelling, and M. M. Khaiyer Analytical Services and Materials, Inc. Hampton, Virginia P. Minnis National Aeronautics and Space Administration Atmospheric Sciences Division Langley Research Center Hampton, Virginia S. Sun-Mack Science Applications International Corporation Hampton, Virginia Introduction Utilization of the geostationary meteorological satellite (GMS) imagery has allowed for the derivation of cloud and radiative properties over the Tropical Western Pacific (TWP) on relatively high spatial and temporal scales. The layered bispectral threshold method (LBTM) has been applied to GMS data

26

Convective Precursors and Predictability in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

Conditions leading to convective outbreak in the Tropics are investigated by multivariate analysis of sounding and satellite data from the tropical western Pacific area. Circumstances that make the prediction problem difficult are discussed and ...

Steven C. Sherwood

1999-12-01T23:59:59.000Z

27

Observed Large-Scale Structures and Diabatic Heating and Drying Profiles during TWP-ICE  

Science Conference Proceedings (OSTI)

This study documents the characteristics of the large-scale structures and diabatic heating and drying profiles observed during the Tropical Warm PoolInternational Cloud Experiment (TWP-ICE), which was conducted in JanuaryFebruary 2006 in ...

Shaocheng Xie; Timothy Hume; Christian Jakob; Stephen A. Klein; Renata B. McCoy; Minghua Zhang

2010-01-01T23:59:59.000Z

28

A Comparison of the Water Budgets between Clouds from AMMA and TWP-ICE  

Science Conference Proceedings (OSTI)

Two field campaigns, the African Monsoon Multidisciplinary Analysis (AMMA) and the Tropical Warm PoolInternational Cloud Experiment (TWP-ICE), took place in 2006 near Niamey, Niger, and Darwin, Northern Territory, Australia, providing extensive ...

Xiping Zeng; Wei-Kuo Tao; Scott W. Powell; Robert A. Houze Jr.; Paul Ciesielski; Nick Guy; Harold Pierce; Toshihisa Matsui

2013-02-01T23:59:59.000Z

29

Obtaining Best Estimates for the Microphysical and Radiative Properties of Tropical Ice Clouds from TWP-ICE In Situ Microphysical Observations  

Science Conference Proceedings (OSTI)

Best estimates of the bulk microphysical and radiative properties (ice water content, visible extinction, effective radius, and total concentration) are derived for three case studies of tropical ice clouds sampled during the Tropical Warm Pool ...

A. Protat; G. M. McFarquhar; J. Um; J. Delano

2011-04-01T23:59:59.000Z

30

Tropical Convection and Precipitation Regimes in the Western United States  

Science Conference Proceedings (OSTI)

The authors have documented the relationship between tropical convection and precipitation regimes in the western United States. Circulation patterns associated with precipitation regimes are described and physical mechanisms are proposed. ...

Kingtse C. Mo; R. W. Higgins

1998-09-01T23:59:59.000Z

31

Western North Pacific Tropical Cyclone Intensity and ENSO  

Science Conference Proceedings (OSTI)

The influence of the El NioSouthern Oscillation (ENSO) on tropical cyclone intensity in the western North Pacific basin is examined. Accumulated cyclone energy (ACE), constructed from the best-track dataset for the region for the period 1950...

Suzana J. Camargo; Adam H. Sobel

2005-08-01T23:59:59.000Z

32

The 3060-Day Convection Seesaw between the Tropical Indian and Western Pacific Oceans  

Science Conference Proceedings (OSTI)

The tropical Indian and western Pacific oceans are two prominent action centers for tropical 3060-day convective variability. When convection is enhanced over the equatorial Indian Ocean, the tropical western Pacific often experiences an ...

Baozhen Zhu; Bin Wang

1993-01-01T23:59:59.000Z

33

Title: Radar-observed convective characteristics during TWP-ICE  

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

Title: Radar-observed convective characteristics during TWP-ICE Title: Radar-observed convective characteristics during TWP-ICE Schumacher, Courtney Texas A&M University Houze, Robert University of Washington May, Peter Bureau or Meteorology Research Centre Frederick, Kaycee Cetrone, Jasmine Vallgren, Andreas Category: Field Campaigns This poster will describe the radar dataset obtained in the Tropical Warm Pool International Cloud Experiment (TWP-ICE), which is to take place 20 January - 14 February 2006 in the vicinity of Darwin, Australia. We will describe the convective systems observed during the project by two scanning C-band Doppler radars, one of which will provide dual-polarization measurements, and ARM's vertically pointing cloud radar and lidar installations. In addition, we will discuss the potential for combining

34

FACT SHEET U.S. Department of Energy Tropical Western...  

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

Pool" The TWP locale spans an area roughly between 10N to 10S of the equator from Indonesia to the International Date Line. This region of the world plays a large role in the...

35

23-Day Convective Variability in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

This paper is an examination of 23-day convective variability in the tropical Pacific region. The initial focus of the paper is on the western tropical Pacific during the Tropical Ocean Global Atmosphere Coupled Ocean-Atmosphere Response ...

Carol Anne Clayson; Brian Strahl; Jon Schrage

2002-03-01T23:59:59.000Z

36

Northwestward-Propagating Wave Patterns over the Tropical Western North Pacific during Summer  

Science Conference Proceedings (OSTI)

The possible relationship between northwestward-propagating wave disturbances and tropical cyclones over the tropical western North Pacific during summer is studied using data assimilated by the navy's global model during MaySeptember 198991. A ...

C-P. Chang; J. M. Chen; P. A. Harr; L. E. Carr

1996-10-01T23:59:59.000Z

37

The Tropical Warm Pool International Cloud Experiment  

Science Conference Proceedings (OSTI)

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

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

2008-05-01T23:59:59.000Z

38

Surface Meteorological Instruments for TWP (SMET) Handbook  

Science Conference Proceedings (OSTI)

The TWP Surface Meteorology station (SMET) uses mainly conventional in situ sensors to obtain 1-minute statistics of surface wind speed, wind direction, air temperature, relative humidity, barometric pressure and rainfall amount.

Ritsche, MT

2009-01-01T23:59:59.000Z

39

The Analysis of Tropical Cyclone Tracks in the Western North Pacific through Data Mining. Part II: Tropical Cyclone Landfall  

Science Conference Proceedings (OSTI)

This is the second paper of a two-part series of papers on the analysis of tropical cyclone (TC) tracks in the western North Pacific Ocean. In this paper, TC landfalls in the South China Sea and western North Pacific basins are investigated ...

Wei Zhang; Yee Leung; Johnny C. L. Chan

2013-06-01T23:59:59.000Z

40

A Lagrangian Interpretation of 3D Tropical Cloud Structure: ...  

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

the distributions requires further investigation, the implications are that TWP-Microbase retrieval would provide information about the tropical cloud water content for 2...

Note: This page contains sample records for the topic "twp tropical western" 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

Heating Profiles Derived From Cm-wavelength Radar During TWP...  

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

Heating Profiles Derived From Cm-wavelength Radar During TWP-ICE Heating Profiles Derived From Cm-wavelength Radar During TWP-ICE Courtney Schumacher and Kaycee Frederick Courtney...

42

Environmental Factors Contributing to Tropical Cyclone Genesis over the Western North Pacific  

Science Conference Proceedings (OSTI)

The flow environment associated with tropical cyclone genesis (TCG) over the western North Pacific was assessed via categorization into five flow patterns: monsoon shear line (SL), monsoon confluence region (CR), monsoon gyre (GY), easterly wave (...

Ryuji Yoshida; Hirohiko Ishikawa

2013-02-01T23:59:59.000Z

43

A Satellite Observational Study of Precipitation Characteristics in Western North Pacific Tropical Cyclones  

Science Conference Proceedings (OSTI)

Special Sensor Microwave/Imager (SSM/I) observations were used to examine spatial and temporal changes in the precipitation characteristics for western North Pacific tropical cyclones that reached storm stage or greater during 1987-92. The second ...

Edward B. Rodgers; Harold F. Pierce

1995-12-01T23:59:59.000Z

44

Spatially Inhomogeneous Trends of Tropical Cyclone Intensity over the Western North Pacific for 19772010  

Science Conference Proceedings (OSTI)

The spatial distribution of trends in tropical cyclone (TC) intensity over the western North Pacific Ocean (WNP) during the period 19772010 was examined using five TC datasets. The spatial distribution of the TC intensity was expressed by ...

Doo-Sun R. Park; Chang-Hoi Ho; Joo-Hong Kim; Hyeong-Seog Kim

2013-07-01T23:59:59.000Z

45

A History of Western North Pacific Tropical Cyclone Track Forecast Skill  

Science Conference Proceedings (OSTI)

The tropical cyclone (TC) track forecasting skill of operational numerical weather prediction (NWP) models and their consensus is examined for the western North Pacific from 1992 to 2002. The TC track forecasting skill of the operational NWP ...

James S. Goerss; Charles R. Sampson; James M. Gross

2004-06-01T23:59:59.000Z

46

A Pressure-Based Analysis of the Historical Western North Pacific Tropical Cyclone Intensity Record  

Science Conference Proceedings (OSTI)

The western North Pacific Ocean is the most active tropical cyclone (TC) basin. However, recent studies are not conclusive on whether the TC activity is increasing or decreasing, at least when calculations are based on maximum sustained winds. For ...

Kenneth R. Knapp; John A. Knaff; Charles R. Sampson; Gustavo M. Riggio; Adam D. Schnapp

2013-08-01T23:59:59.000Z

47

International Experiments to Study Tropical Cyclones in the Western North Pacific  

Science Conference Proceedings (OSTI)

Four separate (but coincident in time) field experiments to study tropical cyclones in the western North Pacific area will be carried out during August/September 1990 by the United States, the Economic and Social Commission for Asia and the ...

Russell L. Elsberry

1990-09-01T23:59:59.000Z

48

Mixed Layer Modeling of Intraseasonal Variability in the Tropical Western Pacific and Indian Oceans  

Science Conference Proceedings (OSTI)

Sea surface temperature (SST) variations associated with the atmospheric intraseasonal oscillation in the tropical Indian and western Pacific Oceans, are examined using a one-dimensional mixed layer model. Surface fluxes associated with 10 well-...

Toshiaki Shinoda; Harry H. Hendon

1998-10-01T23:59:59.000Z

49

Inactive Period of Western North Pacific Tropical Cyclone Activity in 19982011  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 19602011, with two distinct active and inactive periods each. This study examines changes in TC activity and atmospheric ...

Kin Sik Liu; Johnny C. L. Chan

2013-04-01T23:59:59.000Z

50

A pressure-based analysis of the historical western North Pacific tropical cyclone intensity record  

Science Conference Proceedings (OSTI)

The western North Pacific Ocean is the most active tropical cyclone (TC) basin. However, recent studies are not conclusive on whether the TC activity is increasing or decreasing, at least when calculations are based on maximum sustained winds. For ...

Kenneth R. Knapp; John A. Knaff; Charles R. Sampson; Gustavo M. Riggio; Adam D. Schnapp

51

Reliability Analysis of Climate Change of Tropical Cyclone Activity over the Western North Pacific  

Science Conference Proceedings (OSTI)

Data homogeneity has become a significant issue in the study of tropical cyclones (TCs) and climate change. In this study, three historical datasets for the western North Pacific TCs from the Joint Typhoon Warning Center (JTWC), Japan ...

Fumin Ren; Jin Liang; Guoxiong Wu; Wenjie Dong; Xiuqun Yang

2011-11-01T23:59:59.000Z

52

Current Capability of Operational Numerical Models in Predicting Tropical Cyclone Intensity in the Western North Pacific  

Science Conference Proceedings (OSTI)

Forecasts of tropical cyclone (TC) intensity from six operational models (three global models and three regional models) during 2010 and 2011 are assessed to study the current capability of model guidance in the western North Pacific. The ...

Hui Yu; Peiyan Chen; Qingqing Li; Bi Tang

2013-04-01T23:59:59.000Z

53

Sudden Tropical Cyclone Track Changes over the Western North Pacific: A Composite Study  

Science Conference Proceedings (OSTI)

Tropical cyclones (TCs) over the western North Pacific (WNP) are usually embedded in the multitime-scale summer monsoon circulation and occasionally experience sudden track changes, which are currently a challenge in TC forecasting. A composite ...

Liguang Wu; Zhongping Ni; Jingjing Duan; Huijun Zong

2013-08-01T23:59:59.000Z

54

Attribution of Projected Future Changes in Tropical Cyclone Passage Frequency over the Western North Pacific  

Science Conference Proceedings (OSTI)

This paper performs an attribution analysis of future changes in the frequency of tropical cyclone (TC) passages over the western North Pacific basin projected by seven general circulation models. The models project increases in the passage ...

Satoru Yokoi; Yukari N. Takayabu; Hiroyuki Murakami

2013-06-01T23:59:59.000Z

55

Influences of ENSO on Western North Pacific Tropical Cyclone Kinetic Energy and Its Meridional Transport  

Science Conference Proceedings (OSTI)

This study investigates the influences of ENSO on tropical cyclone (TC) kinetic energy and its meridional transport in the western North Pacific (WNP) using the TC wind field obtained after a method for removing TC vortices from reanalysis data is ...

Yao Ha; Zhong Zhong; Yijia Hu; Xiuqun Yang

2013-01-01T23:59:59.000Z

56

A Shift in Western Tropical Pacific Sea Level Trends during the 1990s  

Science Conference Proceedings (OSTI)

Pacific Ocean sea surface height trends from satellite altimeter observations for 19932009 are examined in the context of longer tide gauge records and wind stress patterns. The dominant regional trends are high rates in the western tropical ...

Mark A. Merrifield

2011-08-01T23:59:59.000Z

57

Clouds, Radiation, and the Diurnal Cycle of Sea Surface Temperature in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

The relationship among clouds, surface radiation flux, and the sea surface temperature (SST) of the tropical western Pacific Ocean over the diurnal cycle is addressed in the context of the Atmospheric Radiation Measurement (ARM) Program ...

Peter J. Webster; Carol Anne Clayson; Judith A. Curry

1996-08-01T23:59:59.000Z

58

Mesoscale Features Associated with Tropical Cyclone Formations in the Western North Pacific  

Science Conference Proceedings (OSTI)

The mesoscale features of 124 tropical cyclone formations in the western North Pacific Ocean during 19992004 are investigated through large-scale analyses, satellite infrared brightness temperature (TB), and Quick Scatterometer (QuikSCAT) ...

Cheng-Shang Lee; Kevin K. W. Cheung; Jenny S. N. Hui; Russell L. Elsberry

2008-06-01T23:59:59.000Z

59

Large-Scale Environmental Parameters Associated with Tropical Cyclone Formations in the Western North Pacific  

Science Conference Proceedings (OSTI)

The local environmental conditions associated with 405 tropical cyclone (TC) formations in the western North Pacific during 19902001 are examined in this study. Six large-scale parameters are obtained and computed from the NCEP reanalyses with ...

Kevin K. W. Cheung

2004-02-01T23:59:59.000Z

60

The Analysis of Tropical Cyclone Tracks in the Western North Pacific through Data Mining. Part I: Tropical Cyclone Recurvature  

Science Conference Proceedings (OSTI)

This paper is the first of a two-part series of papers that employs the data-mining approach to analyze tropical cyclone (TC) movement in the western North Pacific Ocean. Part I unravels conditions under which TCs tend to recurve, and Part II ...

Wei Zhang; Yee Leung; Johnny C. L. Chan

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Extratropical Transition of Tropical Cyclones over the Western North Pacific. Part II: The Impact of Midlatitude Circulation Characteristics  

Science Conference Proceedings (OSTI)

Two characteristic midlatitude circulation patterns (labeled northwest and northeast) are found to be associated with extratropical transition (ET) of tropical cyclones over the western North Pacific Ocean. Although in both cases the tropical ...

Patrick A. Harr; Russell L. Elsberry; Timothy F. Hogan

2000-08-01T23:59:59.000Z

62

TWP-ICE Data from the GEWEX Cloud System Study: Data Integration for Model Evaluation (GCSSDIME)  

DOE Data Explorer (OSTI)

One of the most complete data sets of tropical cirrus and convection observations resulted from the Tropical Warm Pool - International Cloud Experiment (TWP-ICE) in the area around Darwin, Australia. The aim of the experiment is to examine convective cloud systems from their initial stages through the decaying and thin high level cirrus and measure their impact on the environment. The experiment design includes an unprecedented array of soundings and other information to support cloud resolving and other modeling studies as well as a large range of in-situ and remotely sensed observation platforms. A key component of the field campaign is a fleet of aircraft including the Dornier, Dimona, Egrett, Twin Otter, and Proteus. Together, these aircraft collected measurements of cloud properties and the meteorological environment from the planetary boundary layer up to 15 km high. The extensive ground network of cloud sensing radar, lidar and passive instruments are located on a ship and several ground sites throughout the experimental domain. This case study presents data from 19 Jan 2006 to 28 Feb 2006 and covers a region from 25S to 10S latitude and from 125E to 140E longitude.[Copied from http://gcss-dime.giss.nasa.gov/twp-ice/twp-ice.html

63

Progress on an ARM/GCSS/SPARC TWP-ICE Monsoon Case Study  

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

Progress Progress on an ARM/GCSS/SPARC TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman ann.fridlind@nasa.gov * www.giss.nasa.gov/∼fridlind Introduction Source: Lori Chappel, Australian BOM The Tropical Warm Pool-International Cloud Experiment (TWP-ICE) assembled aircraft and ground instruments at the DOE-ARM long-term site in Darwin, Australia during the 2005/2006 monsoon, and the early part of the campaign encountered active monsoon conditions (left). The goal of this work is to help develop a model intercomparison case study that can be carried out jointly by three organizations: the ARM cloud modeling working group, the GEWEX Cloud System Study (GCSS) deep convective clouds group, and the Stratospheric Processes and Their Role in Climate (SPARC) group. Case description ◮ idealized maritime convection (specified SST) ◮ large-scale forcing data from

64

CONDITIONS RELATED TO UPWELLING WHICH DETERMINE DISTRIBUTION OF TROPICAL TUNAS OFF WESTERN BAJA CALIFORNIAl,2  

E-Print Network (OSTI)

CONDITIONS RELATED TO UPWELLING WHICH DETERMINE DISTRIBUTION OF TROPICAL TUNAS OFF WESTERN BAJA of the results were ·com- pared with contemporaneous fishery data on· the dis~ribution of yellowfin tuna, Thunnus albacores. and ·~kipjack tuna, Euthynnus pelamis. The object was to test the hypothesis that the tunas

65

Factors Controlling Multiple Tropical Cyclone Events in the Western North Pacific  

Science Conference Proceedings (OSTI)

The statistical feature of occurrence of multiple tropical cyclone (MTC) events in the western North Pacific (WNP) is examined during summer (JuneSeptember) for the period of 19792006. The number of MTC events ranged from one to eight per year, ...

Jianyun Gao; Tim Li

2011-03-01T23:59:59.000Z

66

What Percentage of Western North Pacific Tropical Cyclones Form within the Monsoon Trough?  

Science Conference Proceedings (OSTI)

It is frequently stated that 70%80% of western North Pacific tropical cyclones form within the monsoon trough, but without an objective definition of the term. Several definitions are tested here. When the monsoon trough (MT) is defined as the ...

John Molinari; David Vollaro

2013-02-01T23:59:59.000Z

67

A Simple Statistical-Synoptic Track Prediction Technique for Western North Pacific Tropical Cyclones  

Science Conference Proceedings (OSTI)

A simple statistical-synoptic technique for tropical cyclone (TC) track forecasting to 72 h in the western North Pacific is derived. This technique applies to the standard (S) pattern/dominant ridge region (S/DR) and poleward/poleward-oriented (P/...

Jeng-Ming Chen; Russell L. Elsberry; Mark A. Boothe; Lester E. Carr III

1999-01-01T23:59:59.000Z

68

A physical basis for the probabilistic prediction of the accumulated tropical cyclone kinetic energy in the Western North Pacific  

Science Conference Proceedings (OSTI)

The relationship between El Nio Southern Oscillation (ENSO) and tropical storm (TS) activity over the western North Pacific (WNP) is examined for the period from 1981 to 2010. In El Nio years, TS genesis locations are generally shifted to the ...

Hye-Mi Kim; Myong-In Lee; Peter J. Webster; Dongmin Kim; Jin Ho Yoo

69

Large-Scale Flow Patterns and Their Influence on the Intensification Rates of Western North Pacific Tropical Storms  

Science Conference Proceedings (OSTI)

NCEPNCAR reanalysis data are used to identify large-scale environmental flow patterns around western North Pacific tropical storms with the goal of finding a signal for those most favorable for rapid intensification, based on the hypothesis that ...

Justin D. Ventham; Bin Wang

2007-03-01T23:59:59.000Z

70

Observational Analysis of Tropical Cyclogenesis in the Western North Pacific. Part I: Structural Evolution of Cloud Clusters  

Science Conference Proceedings (OSTI)

This paper is the first of a two-part series summarizing recent attempts to advance omit understanding of the physical processes associated with tropical cyclone formation in the western North Pacific. A combination of rawinsonde composite and ...

Cheng Shang Lee

1989-08-01T23:59:59.000Z

71

A Study on the Synoptic-Dynamical Characteristics of Compact Tropical Cyclones in the Western North Pacific  

Science Conference Proceedings (OSTI)

This study focuses on the synoptic and dynamical characteristic of compact and incompact tropical cyclones (TCs) in the western North Pacific. To identify the distinct mechanisms related to the development and maintenance of these two categories ...

Delia Yen-Chu Chen; Kevin K. W. Cheung; Cheng-Shang Lee

2012-12-01T23:59:59.000Z

72

Systematic Variation of Summertime Tropical Cyclone Activity in the Western North Pacific in Relation to the MaddenJulian Oscillation  

Science Conference Proceedings (OSTI)

The variability of observed tropical cyclone (TC) activity (i.e., genesis, track, and landfall) in the western North Pacific (WNP) is examined in relation to the various categories of the MaddenJulian oscillation (MJO) during summer (June...

Joo-Hong Kim; Chang-Hoi Ho; Hyeong-Seog Kim; Chung-Hsiung Sui; Seon Ki Park

2008-03-01T23:59:59.000Z

73

Interannual Variations in Mixed RossbyGravity Waves and Their Impacts on Tropical Cyclogenesis over the Western North Pacific  

Science Conference Proceedings (OSTI)

The present study investigates the transition from mixed Rossbygravity (MRG) waves to tropical depression (TD)-type disturbances and its interannual variations over the western North Pacific (WNP), using ECMWF high-resolution data for the years ...

Guanghua Chen; Ronghui Huang

2009-02-01T23:59:59.000Z

74

Extratropical Transition of Western North Pacific Tropical Cyclones: An Overview and Conceptual Model of the Transformation Stage  

Science Conference Proceedings (OSTI)

Extratropical transition (ET) in the western North Pacific is defined here in terms of two stages: transformation, in which the tropical cyclone evolves into a baroclinic storm; and reintensification, where the transformed storm then deepens as ...

Peter M. Klein; Patrick A. Harr; Russell L. Elsberry

2000-08-01T23:59:59.000Z

75

Comparison of the CALIPSO satellite and ground-based observations of cirrus clouds at the ARM TWP sites  

SciTech Connect

Statistics of ice cloud macrophysical and optical properties from the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) instrument on board the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite are compared with those from ground-based lidar observations over a 31 month period. Ground-based lidar observations are taken from the micropulse lidars (MPL) at the three Department of Energy Atmospheric Radiation Measurement (ARM) tropical western pacific (TWP) sites: Manus, Nauru and Darwin. CALIPSO observations show a larger cloud fraction at high altitudes while the ground-based MPLs show a larger cloud fraction at low altitudes. The difference in mean ice cloud top and base heights at the Manus and Nauru sites are all within 0.51 km, although differences are statistically significant. Mean ice cloud geometrical thickness agree to within 0.05 km at the Manus and Nauru sites. Larger differences exist at Darwin due to excessive degradation of the MPL output power during our sampling period. Both sets of observations show thicker clouds during the nighttime which may be real but could also be partially an artifact of the decreased signal-to-noise ratio during the daytime. The number of ice cloud layers per profile are also shown to be consistent after accounting for the difference in spatial resolution. For cloud optical depths, four different retrieval methods are compared, two for each set of observations. All products show that the majority of ice cloud optical depths ({approx}60%) fall below an optical depth of 0.2. For most comparisons all four retrievals agree to within the uncertainty intervals. We find that both CALIPSO retrievals agree best to ground-based optical depths when the lidar ratio in the latter is retrieved instead of set to a fixed value. Also thoroughly compared is the cloud properties for the subset of ice clouds which reside in the tropical tropopause layer (TTL).

Thorsen, Tyler J.; Fu, Q.; Comstock, Jennifer M.

2011-11-10T23:59:59.000Z

76

Progress on a TWP-ICE Monsoon Case Study  

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

25-mb 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work Progress on a TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman * NASA GISS thanks to Jon Petch * ECMWF Shaocheng Xie * LLNL TWP-ICE and ACTIVE Science Teams DOE ARM Program and Data Archive NASA Radiation Sciences Program NASA Advanced Supercomputing Division 18th Annual ARM Science Team Meeting 10 March 2008 Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work 1 Introduction TWP-ICE monsoon period GISS set-up 2 25-mb large-scale forcing Initial results Comparison with ECMWF forcing style Tropopause moisture analysis 3 10-mb large-scale forcing Tropopause moisture analysis Final results 4 Tracers Measurements Model results 5 Future work Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work TWP-ICE monsoon

77

The TWP-ICE CRM Intercomparison Specification and First Results  

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

TWP-ICE CRM Intercomparison Specification and First Results Ann Fridlind (ann.fridlind@nasa.gov), Andrew Ackerman (andrew.ackerman@nasa.gov), Adrian Hill (adrian.hill@metoffice.gov...

78

Are Tropical Cyclones Less Effectively Formed by Easterly Waves in the Western North Pacific than in the North Atlantic?  

Science Conference Proceedings (OSTI)

It has been observed that the percentage of tropical cyclones originating from easterly waves is much higher in the North Atlantic (60%) than in the western North Pacific (10%20%). This disparity between the two ocean basins exists because the ...

Tsing-Chang Chen; Shih-Yu Wang; Ming-Cheng Yen; Adam J. Clark

2008-11-01T23:59:59.000Z

79

Possible Linkage between the Monsoon Trough Variability and the Tropical Cyclone Activity over the Western North Pacific  

Science Conference Proceedings (OSTI)

The present study investigates the influence of the monsoon trough (MT) on the interannual variability of tropical cyclone (TC) activity over the western North Pacific during JulyNovember for the period 19792007. It is shown that the TC activity ...

Liang Wu; Zhiping Wen; Ronghui Huang; Renguang Wu

2012-01-01T23:59:59.000Z

80

Utility of Radiosonde Wind Data in Representing Climatological Variations of Tropospheric Temperature and Baroclinicity in the Western Tropical Pacific  

Science Conference Proceedings (OSTI)

The utility of the thermal wind equation (TWE) in relating tropospheric (850300 hPa) wind and temperature on climatological time scales is assessed, based on data from 59 radiosonde stations in the western tropical Pacific during 19792004. ...

Robert J. Allen; Steven C. Sherwood

2007-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

A Physical Basis for the Probabilistic Prediction of the Accumulated Tropical Cyclone Kinetic Energy in the Western North Pacific  

Science Conference Proceedings (OSTI)

The relationship between El NioSouthern Oscillation (ENSO) and tropical storm (TS) activity over the western North Pacific Ocean is examined for the period from 1981 to 2010. In El Nio years, TS genesis locations are generally shifted to the ...

Hye-Mi Kim; Myong-In Lee; Peter J. Webster; Dongmin Kim; Jin Ho Yoo

2013-10-01T23:59:59.000Z

82

ARM - TWP Darwin Site - Aussie Trivia  

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

of Western Australia, is also the capital city in the world with the most consistent wind. The welcome breeze of the "Fremantle Doctor"' arrives to cool down beach goers...

83

A REVISED CONCEPTUAL MODEL OF THE TROPICAL MARINE BOUNDARY LAYER. PART I: STATISTICAL CHARACTERIZATION OF THE VARIABILITY INHERENT IN THE WINTERTIME TRADE WIND REGIME OVER THE WESTERN TROPICAL ATLANTIC  

Science Conference Proceedings (OSTI)

This paper investigates wintertime tropical marine boundary layer (TMBL) statistical characteristics over the western North Atlantic using the complete set of island-launched soundings from the Rain in Cumulus over the Ocean (RICO) Experiment. The ...

Jennifer L. Davison; Robert M. Rauber; Larry Di Girolamo; Margaret A. LeMone

84

A Revised Conceptual Model of the Tropical Marine Boundary Layer. Part I: Statistical Characterization of the Variability Inherent in the Wintertime Trade Wind Regime over the Western Tropical Atlantic  

Science Conference Proceedings (OSTI)

This paper investigates wintertime tropical marine boundary layer (TMBL) statistical characteristics over the western North Atlantic using the complete set of island-launched soundings from the Rain in Cumulus over the Ocean (RICO) experiment. The ...

Jennifer L. Davison; Robert M. Rauber; Larry Di Girolamo; Margaret A. LeMone

2013-10-01T23:59:59.000Z

85

A Satellite Observational and Numerical Study of Precipitation Characteristics in Western North Atlantic Tropical Cyclones  

Science Conference Proceedings (OSTI)

Special Sensor Microwave/Imager (SSM/I) observations were used to examine the spatial and temporal changes of the precipitation characteristics of tropical cyclones. SSM/I observations were also combined with the results of a tropical cyclone ...

Edward B. Rodgers; Simon W. Chang; Harold F. Pierce

1994-02-01T23:59:59.000Z

86

HISTORY AND CURRENT STATUS OF THE CIMEL SUN-PHOTOMETERS AT ACRF SITES  

E-Print Network (OSTI)

, Tropical Western Pacific [TWP]-C2, the ARM Mobile Facility [AMF]). This comes on the heels of two important

87

Evaluating Deep Updraft Formulation in NCAR CAM3 with High-Resolution WRF Simulations During ARM TWP-ICE  

SciTech Connect

The updraft formulation used in NCAR CAM3 deep convection parameterization assumes that the fractional entrainment rate for a single updraft is height-independent and the updraft mass flux increases monotonically with height to updraft top. These assumptions are evaluated against three-dimensional high-resolution simulations from the weather research and forecast (WRF) model during the monsoon period of the DOE ARM Tropical Warm Pool -- International Cloud Experiment (TWP-ICE). Analyses of the WRF-generated updrafts suggest that the fractional entrainment rate for a single updraft decreases with height and the updraft mass flux increases with height below the top of the conditionally unstable layer but decreases above. It is suggested that the assumed updraft mass flux profile in CAM3 might be unrealistic in many cases because the updraft acceleration is affected by other drag processes in addition to entrainment. Total convective cloud mass flux and detrainment rate over the TWP-ICE domain diagnosed from the CAM3 parameterization driven by WRF meteorological fields are smaller than those derived from WRF simulations. The total entrainment rate of CAM3 is smaller than that of WRF in the lower part of cloud and larger in the upper part of cloud. Compared with WRF simulations, the CAM3-parameterized convection is too active and, as a result, excess moisture and heat may be transported to the upper troposphere by the parameterized convection. Future improvement is envisioned.

Wang, Weiguo; Liu, Xiaohong

2009-02-19T23:59:59.000Z

88

Some Implications of Core Regime Wind Structures in Western North Pacific Tropical Cyclones  

Science Conference Proceedings (OSTI)

In this study, a tropical cyclone (TC) is considered to be compact if 1) the radius of maximum wind or the maximum tangential wind is smaller than what would be expected for an average tropical cyclone of the same intensity or the same radius of ...

Delia Yen-Chu Chen; Kevin K. W. Cheung; Cheng-Shang Lee

2011-02-01T23:59:59.000Z

89

1080 MONTHLY WEATHER REVIEW VOLUME 126 NOTES AND CORRESPONDENCE Interannual Variation in the Tropical Cyclone Formation over the Western North Pacific  

E-Print Network (OSTI)

The interannual variation in tropical cyclone genesis frequency over the western North Pacific was examined for the active tropical cyclone (including summer and fall) during 197994. An emphasis was put on the possible effect of the interannual variation of atmospheric circulation and monsoon trough on tropical cyclone occurrence. The major findings of this study are the following. 1) A distinct increase (decrease) of tropical cyclone genesis frequency occurs north of the climatological location of the monsoon trough in the Philippine Sea during summers (JuneAugust) with anomalous cold (warm) sea surface temperature (SST) over the NINO3 region. The interannual variation of tropical cyclone genesis in this region results from the appearance of an anomalous cyclonic (anticyclonic) cell situated in a summer teleconnection wave train emanating from the western tropical Pacific and progressing along the rim of the North Pacific. In addition to the northsouth interannual variation, there is also a longitudinal interannual variation in the summer tropical cyclone genesis frequency over this region. The contrast of tropical cyclone genesis between the regions west and east of 150?E is reduced (enhanced) when the monsoon trough extends (retreats) eastward (westward) across this longitude during warm (cold) summers. 2) For fall (SeptemberNovember), there is no clear relationship between the northsouth interannual variation in the tropical cyclone genesis over the western North Pacific and SST (NINO3). However, there is a perceptible tendency of the longitudinal interannual variation in tropical cyclone genesis frequency to follow the eastward extension/westward retreat of the monsoon trough in a way such as it does during the summer season. 1.

Tsing-chang Chen; Shu-ping Weng; Susan Kiehne

1996-01-01T23:59:59.000Z

90

Observational Analysis of Tropical Cyclogenesis in the Western North Pacific. Part II: Budget Analysis  

Science Conference Proceedings (OSTI)

This is the second of a two-part study which uses a combination of composite rawinsonde and individual FGGE case analyses to identify the important physical processes associated with tropical cyclone formation. Part I examined the structural ...

Cheng Shang Lee

1989-08-01T23:59:59.000Z

91

Modulation of Western North Pacific Tropical Cyclone Activity by the ISO. Part I: Genesis and Intensity  

Science Conference Proceedings (OSTI)

This study investigates the intraseasonal variability of tropical cyclones (TCs) by systematically examining the two major components of the intraseasonal oscillation (ISO), the 3060-day MaddenJulian oscillation (MJO) and the 1020-day quasi-...

Richard C. Y. Li; Wen Zhou

2013-05-01T23:59:59.000Z

92

Precipitation and Latent Heating Characteristics of the Major Tropical Western Pacific Cloud Regimes  

Science Conference Proceedings (OSTI)

An objective tropical cloud regime classification based on daytime averaged cloud-top pressure and optical thickness information from the International Satellite Cloud Climatology Project (ISCCP) is combined with precipitation and latent heating ...

Christian Jakob; Courtney Schumacher

2008-09-01T23:59:59.000Z

93

Joint Contribution of Multiple Equatorial Waves to Tropical Cyclogenesis over the Western North Pacific  

Science Conference Proceedings (OSTI)

A composite study is performed to examine the differences in equatorial wave behaviors and large-scale background patterns during tropical cyclone (TC) genesis. After removing TC contamination, MaddenJulian oscillation (MJO), equatorial Rossby (...

Guanghua Chen; Chia Chou

2014-01-01T23:59:59.000Z

94

Developing versus Nondeveloping Disturbances for Tropical Cyclone Formation. Part II: Western North Pacific  

Science Conference Proceedings (OSTI)

Global daily reanalysis fields from the Navy Operational Global Atmospheric Prediction System (NOGAPS) are used to analyze Northern Hemisphere summertime (JuneSeptember) developing and nondeveloping disturbances for tropical cyclone (TC) ...

Bing Fu; Melinda S. Peng; Tim Li; Duane E. Stevens

2012-04-01T23:59:59.000Z

95

TWP-ICE Global Atmospheric Model Intercomparison: Convection Responsiveness and Resolution Impact  

SciTech Connect

Results are presented from an intercomparison of global atmospheric model (GAM) simulations of tropical convection during the Tropical Warm Pool-International Cloud Experiment (TWP-ICE). The distinct cloud properties, precipitation, radiation, and vertical diabatic heating profiles associated with three different monsoon regimes (wet, dry, and break) from available observations are used to evaluate 9 GAM forecasts initialized daily from realistic global analyses. All models well captured the evolution of large-scale circulation and the thermodynamic fields, but cloud properties differed substantially among models. For example, liquid water path and ice water path differed by up to two orders of magnitude. Compared with the relatively well simulated top-heavy heating structures during the wet and break period, most models had difficulty in depicting the bottom-heavy heating profiles associated with cumulus congestus. The best performing models during this period were the ones whose convection scheme was most responsive to the free tropospheric humidity. Compared with the large impact of cloud and convective parameterizations on model cloud and precipitation characteristics, resolution has relatively minor impact on simulated cloud properties. However, one feature that was influence by the resolution study in several models was the diurnal cycle of precipitation. Peaking at a different time from convective precipitation, large-scale precipitation generally increases in high resolution forecasts and modulates the total precipitation diurnal cycle. Overall, the study emphasizes the importance of more environmental responsive convective parameterizations to capture various types of convection and the substantial diversity among large-scale cloud and precipitation schemes in current GAMs. This experiment has also demonstrated itself to be a very useful testbed for those developing cloud and convection schemes in these models.

Lin, Yanluan; Donner, Leo J.; Petch, Jon C.; Bechtold, P.; Boyle, James; Klein, Stephen A.; Komori, T.; Wapler, K.; Willett, M.; Xie, X.; Zhao, M.; Xie, Shaocheng; McFarlane, Sally A.; Schumacher, Courtney

2012-05-08T23:59:59.000Z

96

Modulation of Western North Pacific Tropical Cyclone Activity by the ISO. Part II: Tracks and Landfalls  

Science Conference Proceedings (OSTI)

This study investigates how tropical cyclone (TC) tracks and landfalls are modulated by the two major components of the intraseasonal oscillation (ISO), the 3060-day MaddenJulian oscillation (MJO) and the 1020-day quasi-biweekly oscillation (...

Richard C. Y. Li; Wen Zhou

2013-05-01T23:59:59.000Z

97

A Proposed Mechanism for the Intrusion of Dry Air into the Tropical Western Pacific Region  

Science Conference Proceedings (OSTI)

Recent studies using data from the Tropical Ocean and Global Atmosphere programs Coupled OceanAtmosphere Response Experiment (TOGA COARE) have shown that synoptic-scale areas of extremely dry air can occur in the troposphere over the equatorial ...

Kunio Yoneyama; David B. Parsons

1999-06-01T23:59:59.000Z

98

Tropical Convection on 721-Day Timescales over the Western Pacific  

Science Conference Proceedings (OSTI)

Evidence is presented to demonstrate that the oscillations of convection on 721-day timescales are an important component of the intraseasonal variability over the region spanning the equatorial western Pacific to the subtropical South Pacific. ...

Jon M. Schrage; Dayton G. Vincent

1996-03-01T23:59:59.000Z

99

Modeling of Tropical Forcing of Persistent Droughts and Pluvials over Western North America: 18562000  

Science Conference Proceedings (OSTI)

The causes of persistent droughts and wet periods, or pluvials, over western North America are examined in model simulations of the period from 1856 to 2000. The simulations used either (i) global sea surface temperature data as a lower boundary ...

Richard Seager; Yochanan Kushnir; Celine Herweijer; Naomi Naik; Jennifer Velez

2005-10-01T23:59:59.000Z

100

ARM - PI Product - SGP and TWP (Manus) Ice Cloud Vertical Velocities  

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

ProductsSGP and TWP (Manus) Ice Cloud Vertical ProductsSGP and TWP (Manus) Ice Cloud Vertical Velocities Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : SGP and TWP (Manus) Ice Cloud Vertical Velocities 1997.01.01 - 2010.12.31 Site(s) SGP TWP General Description Daily netcdf-files of ice-cloud dynamics observed at the ARM sites at SGP (Jan1997-Dec2010) and Manus (Jul1999-Dec2010). The files include variables at different time resolution (10s, 20min, 1hr). Profiles of radar reflectivity factor (dbz), Doppler velocity (vel) as well as retrieved vertical air motion (V_air) and reflectivity-weighted particle terminal fall velocity (V_ter) are given at 10s, 20min and 1hr resolution. Lower level clouds are removed, however a multi-layer flag is included.

Note: This page contains sample records for the topic "twp tropical western" 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

Hindcast/Forecast of ENSO Events Based upon the Redistribution of Observed and Model Heat Content in the Western Tropical Pacific, 196486  

Science Conference Proceedings (OSTI)

The redistribution of observed upper-ocean heat content in the western tropical North Pacific for the four-year period 197982 was shown by Pazan et al. to provide a qualitative hindcast capability for the 198283 ENSO event. A related study (...

Warren B. White; Stephen E. Pazan; Masamichi Inoue

1987-02-01T23:59:59.000Z

102

Transports and Pathways of the Upper-Layer Circulation in the Western Tropical Atlantic  

Science Conference Proceedings (OSTI)

The mean warm water transfer toward the equator along the western boundary of the South Atlantic is investigated, based on a number of ship surveys carried out during 199096 with CTD water mass observations and current profiling by shipboard and ...

Friedrich A. Schott; Jrgen Fischer; Lothar Stramma

1998-10-01T23:59:59.000Z

103

Upper Ocean Water Masses and Transports in the Western Tropical Pacific (165E)  

Science Conference Proceedings (OSTI)

As part of the international TOGA program, the ORSTOM Center in Nouma (New Caledonia) initiated in January 1984 a series of semi-annual cruises along the 165E meridian from 20S to 10N, across the equatorial current system of the western ...

Thierry Delcroix; Gerard Eldin; Christian Hnin

1987-12-01T23:59:59.000Z

104

Improvements in Representations of Cloud Microphysics for BBHRP and Models using Data Collected during M-PACE and TWP-ICE  

SciTech Connect

In our research we proposed to use data collected during the 2004 Mixed-Phase Arctic Cloud Experiment (MPACE) and the 2006 Tropical Warm Pool International Cloud Experiment (TWP-ICE) to improve retrievals of ice and mixed-phase clouds, to improve our understanding of how cloud and radiative processes affect cloud life cycles, and to develop and test methods for using ARM data more effectively in model. In particular, we proposed to: 1) use MPACE in-situ data to determine how liquid water fraction and cloud ice and liquid effective radius (r{sub ei} and r{sub ew}) vary with temperature, normalized cloud altitude and other variables for Arctic mixed-phase clouds, and to use these data to evaluate the performance of model parameterization schemes and remote sensing retrieval algorithms; 2) calculate rei and size/shape distributions using TWP-ICE in-situ data, investigate their dependence on cirrus type (oceanic or continental anvils or cirrus not directly traced to convection), and develop and test representations for MICROBASE; 3) conduct fundamental research enhancing our understanding of cloud/radiative interactions, concentrating on effects of small crystals and particle shapes and sizes on radiation; and 4) improve representations of microphysical processes for models (fall-out, effective density, mean scattering properties, rei and rew) and provide them to ARM PIs. In the course of our research, we made substantial progress on all four goals.

Greg M. McFarquhar

2010-02-22T23:59:59.000Z

105

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model  

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

Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model Using ARM TWP Nauru Observations to Evaluate a Simple Thermodynamic Model of the Subcloud Layer Under Fair-Weather Cumulus Conditions Albrecht, Bruce University of Miami Kollias, Pavlos Brookhaven National Laboratory Category: Modeling Marine boundary layer clouds are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earth's atmosphere. The observations from the ARM TWP-Nauru site provide a unique opportunity to study these clouds and the associated boundary layer structure. In this study an atmospheric mixed layer representation of the subcloud layer for application in fair-weather cumulus regimes is used to develop a diagnostic model of the near surface temperature and moisture associated with a given surface temperature and wind speed. This model

106

Experiment to Characterize Tropical Cloud Systems  

SciTech Connect

A major experiment to study tropical convective cloud systems and their impacts will take place around Darwin, Northern Australia in early 2006. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) is a collaboration including the DOE ARM (Atmospheric Radiation Measurement) and ARM-UAV programs, NASA centers, the Australian Bureau of Meteorology, CSIRO, and universities in the USA, Australia, Japan, the UK, and Canada. TWP-ICE will be preceded in November/December 2004 by a collaborating European aircraft campaign involving the EU SCOUT-O3 and UK NERC ACTIVE projects. Detailed atmospheric measurements will be made in the Darwin area through the whole Austral summer, giving unprecedented coverage through the pre-monsoon and monsoon periods.

May, Peter T.; Mather, Jim H.; Jakob, Christian

2005-08-02T23:59:59.000Z

107

Evaluation of Cloud-Resolving Model Intercomparison Simulations Using TWP-ICE Observations: Precipitation and Cloud Structure  

SciTech Connect

The Tropical Warm Pool International Cloud Experiment (TWP-ICE) provided high quality model forcing and observational datasets through which detailed model and observational intercomparisons could be performed. In this first of a two part study, precipitation and cloud structures within nine cloud-resolving model simulations are compared with scanning radar reflectivity and satellite infrared brightness temperature observations during an active monsoon period from 19 to 25 January 2006. Most simulations slightly overestimate volumetric convective rainfall. Overestimation of simulated convective area by 50% or more in several simulations is somewhat offset by underestimation of mean convective rain rates. Stratiform volumetric rainfall is underestimated by 13% to 53% despite overestimation of stratiform area by up to 65% because stratiform rain rates in every simulation are much lower than observed. Although simulations match the peaked convective radar reflectivity distribution at low levels, they do not reproduce the peaked distributions observed above the melting level. Simulated radar reflectivity aloft in convective regions is too high in most simulations. In stratiform regions, there is a large spread in model results with none resembling observed distributions. Above the melting level, observed radar reflectivity decreases more gradually with height than simulated radar reflectivity. A few simulations produce unrealistically uniform and cold 10.8-?m infrared brightness temperatures, but several simulations produce distributions close to observed. Assumed ice particle size distributions appear to play a larger role than ice water contents in producing incorrect simulated radar reflectivity distributions aloft despite substantial differences in mean graupel and snow water contents across models.

Varble, Adam; Fridlind, Ann; Zipser, Edward J.; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Hill, Adrian; McFarlane, Sally A.; Pinty, Jean-Pierre; Shipway, Ben

2011-10-04T23:59:59.000Z

108

J:\\ARM_19~1\\P335-353.WPD  

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

of Colorado Boulder, Colorado Introduction In the tropical Western Pacific (TWP) Ocean, the clouds and the cloud-radiation feedback can only be understood in the context of...

109

Tropical Cyclone Formations over the Western North Pacific in the Navy Operational Global Atmospheric Prediction System Forecasts  

Science Conference Proceedings (OSTI)

A set of criteria is developed to identify tropical cyclone (TC) formations in the Navy Operational Global Atmospheric Prediction System (NOGAPS) analyses and forecast fields. Then the NOGAPS forecasts of TC formations from 1997 to 1999 are ...

Kevin K. W. Cheung; Russell L. Elsberry

2002-08-01T23:59:59.000Z

110

Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar Zenith Angle Correction Factor  

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

Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Radiation Dry Bias in the TWP-ICE Radiosonde Soundings Solar Zenith Angle Correction Factor Figure 3: Ratio of MWR TCWV to radiosonde derived TCWV, and the solar zenith angle at the radiosonde launch time (black dots). The dry bias observed in sonde TCWV values is mainly attributable to a dry RH bias near the surface The red dots show the 1000 hPa RH correction factors suggested by Voemel et al for sondes launched near noon (10-30 degree solar zenith angle), and at night time (90 degree zenith angle). The green line shows a modified RH correction factor which is a function of the solar zenith angle. ● During the day-time, the TCWV bias is significantly smaller when the zenith angle correction is applied than when no correction, or only the Crad and Ccal corrections are applied.

111

Evaluation of Cloud-Resolving Model Intercomparison Simulations Using TWP-ICE Observations: Precipitation and Cloud Structure  

SciTech Connect

The Tropical Warm Pool - International Cloud Experiment (TWP-ICE) provided high quality model forcing and observational datasets through which detailed model and observational intercomparisons could be performed. In this first of a two part study, precipitation and cloud structures within nine cloud-resolving model simulations are compared with scanning radar reflectivity and satellite infrared brightness temperature observations during an active monsoon period from 19 to 25 January 2006. Most simulations slightly overestimate volumetric convective rainfall. Overestimation of simulated convective area by 50% or more in several simulations is somewhat offset by underestimation of mean convective rain rates. Stratiform volumetric rainfall is underestimated by 13% to 53% despite overestimation of stratiform area by up to 65% because stratiform rain rates in every simulation are much lower than observed. Although simulations match the peaked convective radar reflectivity distribution at low levels, they do not reproduce the peaked distributions observed above the melting level. Simulated radar reflectivity aloft in convective regions is too high in most simulations. 29 In stratiform regions, there is a large spread in model results with none resembling 30 observed distributions. Above the melting level, observed radar reflectivity decreases 31 more gradually with height than simulated radar reflectivity. A few simulations produce 32 unrealistically uniform and cold 10.8-?m infrared brightness temperatures, but several 33 simulations produce distributions close to observed. Assumed ice particle size 34 distributions appear to play a larger role than ice water contents in producing incorrect 35 simulated radar reflectivity distributions aloft despite substantial differences in mean 36 graupel and snow water contents across models. 37

Varble, Adam C.; Fridlind, Ann; Zipser, Ed; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Hill, Adrian; McFarlane, Sally A.; Pinty, Jean-Pierre; Shipway, Ben

2011-06-24T23:59:59.000Z

112

Short-Term Climatic Variability in the Volume Budget of the Western Tropical North Pacific Ocean during 197982  

Science Conference Proceedings (OSTI)

Anomalous 14C isotherm depth and anomalous geostrophic volume transport above the 14C isotherm depth are calculated in the tropical Pacific for each bimonth of the four year period 1979 to 1982, based on 15 000 temperature/depth observations ...

Stephen E. Pazan; Warren B. White

1987-04-01T23:59:59.000Z

113

Extratropical Transition of Tropical Cyclones over the Western North Pacific. Part I: Evolution of Structural Characteristics during the Transition Process  

Science Conference Proceedings (OSTI)

The development of extratropical cyclone structural characteristics that resulted from the extratropical transition of Typhoon (TY) David (1997) and TY Opal (1997) over the western North Pacific is examined. David moved poleward ahead of a ...

Patrick A. Harr; Russell L. Elsberry

2000-08-01T23:59:59.000Z

114

Description of a Monsoon Gyre and Its Effects on the Tropical Cyclones in the Western North Pacific during August 1991  

Science Conference Proceedings (OSTI)

This paper describes the character and evolution of the low-level wind, sea level pressure, and satellite-observed cloudiness over the western North Pacific (WNP) during August 1991 when the low-level monsoon circulation there became organized as ...

Mark A. Lander

1994-12-01T23:59:59.000Z

115

Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site  

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

Cumulus Geometry from Satellite and Surface Data Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site E. I. Kassianov, T. P. Ackerman, and R. T. Marchand Pacific Northwest National Laboratory Richland, Washington Introduction The multi-angle imaging spectrometer (MISR), a sensor on board the earth observing system (EOS) Terra satellite platform, observes reflected radiation in nine directions with high resolution (~0.275 km). The overall mission of the MISR is to provide continuous, global multi-angle measurements of the reflected radiation from the earth's atmosphere and surface, and thereby create a valuable resource for studying their physical properties (Diner et al. 1999). For single-layer marine cumulus clouds, we have demonstrated that satellite-derived basic statistics (mean, variance) of vertical cloud size match closely

116

How Representative are the Cloud Regimes at the TWP Sites? … An ISCCP Perspective  

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

How Representative are the Cloud Regimes at the How Representative are the Cloud Regimes at the TWP Sites? - An ISCCP Perspective C. Jakob Bureau of Meteorology Research Centre Melbourne, Australia G. Tselioudis National Aeronautic and Space Administration Goddard Institute for Space Studies Columbia University New York Introduction The Atmospheric Radiation Measurement (ARM) Program has established comprehensive cloud and radiation observatories in various locations across the globe with the aim of collecting measurements and developing models to better understand the processes that control solar and thermal infrared radiative transfer in clouds and at the surface. The locales of the individual ARM sites were chosen because they represent typical cloud regimes occurring in various climate regimes (Stokes and Schwartz

117

Observations of the Overland Reintensification of Tropical Storm Erin (2007)  

Science Conference Proceedings (OSTI)

Atlantic Tropical Depression Five (2007) briefly strengthened into Tropical Storm Erin over the western Gulf of Mexico shortly before making landfall as a tropical depression near Corpus Christi, Texas, on the morning of 16 August 2007. During ...

Derek S. Arndt; Jeffrey B. Basara; Renee A. McPherson; Bradley G. Illston; Gary D. McManus; David B. Demko

2009-08-01T23:59:59.000Z

118

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.

119

The Role of Cloud Microphysics Parameterization in the Simulation of Mesoscale Convective System Clouds and Precipitation in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

This paper presents a detailed analysis of convection-permitting cloud simulations, aimed at increasing the understanding of the role of parameterized cloud microphysics in the simulation of mesoscale convective systems (MCSs) in the tropical ...

K. Van Weverberg; A. M. Vogelmann; W. Lin; E. P. Luke; A. Cialella; P. Minnis; M. Khaiyer; E. R. Boer; M. P. Jensen

2013-04-01T23:59:59.000Z

120

A Comparison of TWP-ICE Observational Data with Cloud-Resolving Model Results  

SciTech Connect

Observations made during the TWP-ICE campaign are used to drive and evaluate thirteen cloud-resolving model simulations with periodic lateral boundary conditions. The simulations employ 2D and 3D dynamics, one- and two-moment microphysics, several variations on large-scale forcing, and the use of observationally derived aerosol properties to prognose droplet numbers. When domain means are averaged over a 6-day active monsoon period, all simulations reproduce observed surface precipitation rate but not its structural distribution. Simulated fractional areas covered by convective and stratiform rain are uncorrelated with one another, and are both variably overpredicted by up to a factor of {approx}2. Stratiform area fractions are strongly anticorrelated with outgoing longwave radiation (OLR) but are negligibly correlated with ice water path (IWP), indicating that ice spatial distribution controls OLR more than mean IWP. Overpredictions of OLR tend to be accompanied by underpredictions of reflected shortwave radiation (RSR). When there are two simulations differing only in microphysics scheme or large-scale forcing, the one with smaller stratiform area tends to exhibit greater OLR and lesser RSR by similar amounts. After {approx}10 days, simulations reach a suppressed monsoon period with a wide range of mean precipitable water vapor, attributable in part to varying overprediction of cloud-modulated radiative flux divergence compared with observationally derived values. Differences across the simulation ensemble arise from multiple sources, including dynamics, microphysics, and radiation treatments. Close agreement of spatial and temporal averages with observations may not be expected, but the wide spreads of predicted stratiform fraction and anticorrelated OLR indicate a need for more rigorous observation-based evaluation of the underlying micro- and macrophysical properties of convective and stratiform structures.

Fridlind, A. M.; Ackerman, Andrew; Chaboureau, Jean-Pierre; Fan, Jiwen; Grabowski, Wojciech W.; Hill, A.; Jones, T. R.; Khaiyer, M. M.; Liu, G.; Minnis, Patrick; Morrison, H.; Nguyen, L.; Park, S.; Petch, Jon C.; Pinty, Jean-Pierre; Schumacher, Courtney; Shipway, Ben; Varble, A. C.; Wu, Xiaoqing; Xie, Shaocheng; Zhang, Minghua

2012-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Environmental Conditions Prior to Formation of a Midget Tropical Cyclone during TCM-93  

Science Conference Proceedings (OSTI)

During a 10-day period in the Tropical Cyclone Motion (TCM-93) field experiment over the tropical western North Pacific, tropical cyclone formation occurred in association with persistent deep convection that was observed over low-level, north-...

Patrick A. Harr; Michael S. Kalafsky; Russell L. Elsberry

1996-08-01T23:59:59.000Z

122

The Relationship of Rainfall Variability in Western Equatorial Africa to the Tropical Oceans and Atmospheric Circulation. Part II: The Boreal Autumn  

Science Conference Proceedings (OSTI)

This paper examines the mechanisms controlling the year-to-year variability of rainfall over western equatorial Africa during the rainy season of OctoberDecember. Five regions with distinct behavior are analyzed separately. Only two show strong ...

Amin K. Dezfuli; Sharon E. Nicholson

2013-01-01T23:59:59.000Z

123

The Relationship of Rainfall Variability in Western Equatorial Africa to the Tropical Oceans and Atmospheric Circulation. Part I: The Boreal Spring  

Science Conference Proceedings (OSTI)

This paper examines the factors governing rainfall variability in western equatorial Africa (WEA) during the AprilJune rainy season. In three of the five regions examined some degree of large-scale forcing is indicated, particularly in the region ...

Sharon E. Nicholson; Amin K. Dezfuli

2013-01-01T23:59:59.000Z

124

Observational Analysis of Tropical Cyclone Formation Associated with Monsoon Gyres  

Science Conference Proceedings (OSTI)

Large-scale monsoon gyres and the involved tropical cyclone formation over the western North Pacific have been documented in previous studies. The aim of this study is to understand how monsoon gyres affect tropical cyclone formation. An ...

Liguang Wu; Huijun Zong; Jia Liang

2013-04-01T23:59:59.000Z

125

Final Report for Research Conducted at The Scripps Institution of Oceanography, University of California San Diego from 2/2002 to 8/2003 for ''Aerosol and Cloud-Field Radiative Effects in the Tropical Western Pacific: Analyses and General Circulation Model Parameterizations''  

SciTech Connect

OAK-B135 Final report from the University of California San Diego for an ongoing research project that was moved to Brookhaven National Laboratory where proposed work will be completed. The research uses measurements made by the Atmospheric Radiation Measurement (ARM) Program to quantify the effects of aerosols and clouds on the Earth's energy balance in the climatically important Tropical Western Pacific.

Vogelmann, A. M.

2004-01-27T23:59:59.000Z

126

A Simulation Study of Shallow Moist Convection and Its Impact on the Atmospheric Boundary Layer  

Science Conference Proceedings (OSTI)

By comparing regional model simulations with the observations collected at the southern Great Plains (SGP) site and the tropical western Pacific (TWP) Nauru site of the Atmospheric Radiation Measurement (ARM) project, this paper evaluates the ...

Ping Zhu; Christopher S. Bretherton

2004-10-01T23:59:59.000Z

127

Visiting Scientists and Researchers  

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

Barrow. Tropical Western Pacific The TWP site includes an area at the equator near Indonesia. This region of the world plays a large role in the interan- nual variability...

128

Detecting Source Regions of Wave Activities in the Tropical Atmosphere by Applying Beamforming to Interpolated Data Grids  

Science Conference Proceedings (OSTI)

Wave activities are primary sources of weather disturbances and cyclones in the tropical atmosphere. One such activity is the intraseasonal variations in wind, convection, and precipitation in the tropical Indian and western tropical Pacific ...

Qi Hu; Zhaoning Liang; Michael W. Hoffman

2009-02-01T23:59:59.000Z

129

A Statistical Analysis of Tropical Cyclone Intensity  

Science Conference Proceedings (OSTI)

Cumulative distribution functions (CDFs) of tropical cyclone wind speeds are calculated using best track data from the North Atlantic and western North Pacific basins. Wind speeds are normalized by theoretical potential wind speeds derived from ...

Kerry Emanuel

2000-04-01T23:59:59.000Z

130

Environmental Factors Affecting Tropical Cyclone Power Dissipation  

Science Conference Proceedings (OSTI)

Revised estimates of kinetic energy production by tropical cyclones in the Atlantic and western North Pacific are presented. These show considerable variability on interannual-to-multidecadal time scales. In the Atlantic, variability on time ...

Kerry Emanuel

2007-11-01T23:59:59.000Z

131

Nasa's Tropical Cloud Systems and Processes Experiment  

Science Conference Proceedings (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

132

Dynamical Tropical Cyclone Track Forecast Errors. Part I: Tropical Region Error Sources  

Science Conference Proceedings (OSTI)

All highly erroneous (>300 n mi or 555 km at 72 h) Navy Operational Global Atmospheric Prediction System (NOGAPS) and U.S. Navy version of the Geophysical Fluid Dynamics Laboratory model (GFDN) tropical cyclone track forecasts in the western ...

Lester E. Carr III; Russell L. Elsberry

2000-12-01T23:59:59.000Z

133

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

134

Tropical Cyclone Track Characteristics as a Function of Large-Scale Circulation Anomalies  

Science Conference Proceedings (OSTI)

Factors that contribute to intraseasonal variability in western North Pacific tropical cyclone track types are investigated. It is hypothesized that the 700-mb large-scale circulation can affect tropical cyclone track characteristics by enhancing ...

Patrick A. Harr; Russell L. Elsberry

1991-06-01T23:59:59.000Z

135

Radiation Budgets in the Western Tropical Pacific  

Science Conference Proceedings (OSTI)

The usefulness of the radiances measured by operational satellites in deriving radiation budgets is demonstrated by comparing the model calculations with the Earth Radiation Budget Experiment (ERBE) fluxes. The radiation budgets in the atmosphere ...

Mino-Dah Chou

1994-12-01T23:59:59.000Z

136

ARM - TWP Manus Site  

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

personnel at TWPO, provide a 24-hour support for daily operations and instrument troubleshooting. Momote Airport from the air. Momote Airport from the air. Instruments Current...

137

TWP Manus Site  

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

personnel at TWPO, provide a 24-hour support for daily operations and instrument troubleshooting. Momote Airport from the air. Momote Airport from the air. Instruments Current...

138

A cohort study of Plasmodium falciparum infection dynamics in Western Kenya Highlands  

E-Print Network (OSTI)

dynamics in Western Kenya Highlands. BMC Infectious DiseasesVector Biology and Control Research, Kenya Medical ResearchInstitute, Kisumu, Kenya. 3 Liverpool School of Tropical

2010-01-01T23:59:59.000Z

139

An Observational Study of Tropical Cyclone Spin-Up in Supertyphoon Jangmi (2008) from 2427 September  

Science Conference Proceedings (OSTI)

An observational study of tropical cyclone intensification is performed using dropsondes, in situ flight-level data, satellite imagery, and ELDORA radar during the spin-up of Tropical Storm Jangmi (2008) in the Western North Pacific. This event ...

Neil T. Sanger; Michael T. Montgomery; Roger K. Smith; Michael M. Bell

140

Kelvin-Type Coastal Surges Generated by Tropical Cyclones  

Science Conference Proceedings (OSTI)

Measurements of sea level along the coat of Western Australia during the period 1969 to 1982. when 12 southward moving tropical cyclones occurred, showed distinct peaks with amplitudes of about 1 to 2 m propagating southwards with speeds ranging ...

C. B. Fandry; L. M. Leslie; R. K. Steedman

1984-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Monsoonal Interactions Leading to Sudden Tropical Cyclone Track Changes  

Science Conference Proceedings (OSTI)

Sudden poleward track changes of tropical cyclones embedded in monsoon gyres in the western North Pacific are documented. During these track changes, which are generally not well forecast, the cyclones are often accompanied by a separate comma-...

Lester E. Carr III; Russell L. Elsberry

1995-02-01T23:59:59.000Z

142

Quantifying Environmental Control on Tropical Cyclone Intensity Change  

Science Conference Proceedings (OSTI)

Composite analysis is used to examine environmental and climatology and persistence characteristics of tropical cyclones (TCs) undergoing different intensity changes in the western North Pacific (WPAC) and North Atlantic (ATL) ocean basins. Using ...

Eric A. Hendricks; Melinda S. Peng; Bing Fu; Tim Li

2010-08-01T23:59:59.000Z

143

On the Phase Relations between the Western North Pacific, Indian, and Australian Monsoons*  

E-Print Network (OSTI)

On the Phase Relations between the Western North Pacific, Indian, and Australian Monsoons* DEJUN GU Guangzhou Institute of Tropical and Marine Meteorology, and Key Open Laboratory for Tropical Monsoon, China Laboratory for Tropical Monsoon, China Meteorological Administration, Guangzhou, China (Manuscript received

Li, Tim

144

Association of Tropical Cirrus in the 1015-km Layer with Deep Convective Sources: An Observational Study Combining Millimeter Radar Data and Satellite-Derived Trajectories  

Science Conference Proceedings (OSTI)

In this paper, millimeter cloud radar (MMCR) and Geosynchronous Meteorological Satellite (GMS) data are combined to study the properties of tropical cirrus that are common in the 1015-km layer of the tropical troposphere in the western Pacific. ...

Gerald G. Mace; Min Deng; Brian Soden; Ed Zipser

2006-02-01T23:59:59.000Z

145

Atlantic Tropical Systems of 1988  

Science Conference Proceedings (OSTI)

.The 1988 season produced 62 tropical waves, 19 tropical depressions and 12 tropical storms, 5 of which became hurricanes. Eighty-three percent of the tropical storms developed from African waves. A comparison with the past 21 years is included.

Lixion A. Avila; Gilbert B. Clark

1989-10-01T23:59:59.000Z

146

Tropical observability and predictability  

E-Print Network (OSTI)

Many studies have investigated tropical data assimilation in the context of global models or specifically for tropical cyclones, but relatively few have focused on the mesoscale predictability and observability of the ...

Whitcomb, Timothy Robert

2008-01-01T23:59:59.000Z

147

Baroclinically Induced Tropical Cyclogenesis  

Science Conference Proceedings (OSTI)

The authors investigate the transition of numerous subtropical cyclones into late season tropical storms and hurricanes during the 2000 and 2001 Atlantic tropical cyclone seasons. In all transitioning cases (10), the 900200-hPa wind shear was ...

Christopher A. Davis; Lance F. Bosart

2003-11-01T23:59:59.000Z

148

Section 113  

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

0°S 0°S 10°N 135°E 150°W Session Papers (a) Mail Stop D407, P.O. Box 1663, 505-667-1186, twppo@lanl.gov. 513 Figure 1. Equatorial Western Pacific region showing TWP locale (dashed area) and proposed Atmospheric and Radiation Cloud Station (ARCS) sites (circles). Tropical Western Pacific Program: Status Report W. E. Clements and F. J. Barnes Tropical Western Pacific Program Office (a) University of California, Los Alamos National Laboratory Los Alamos, New Mexico Introduction The Tropical Western Pacific (TWP) locale is the second Cloud and Radiation Testbed (CART) locale to be imple- mented by the Atmospheric Radiation Measurement (ARM) Program. It is a large expanse of tropical ocean and maritime continent lying roughly between and latitude and from to longitude (Figure 1). The maritime

149

The Interannual Variability in the Genesis Location of Tropical Cyclones in the Northwest Pacific  

Science Conference Proceedings (OSTI)

Variations in the seasonal mean (JulyOctober) genesis positions of tropical cyclones (TCs) in the western North Pacific associated with variations in the large-scale atmospheric circulation are investigated. Analysis shows considerable ...

Hsin Hsing Chia; C. F. Ropelewski

2002-10-01T23:59:59.000Z

150

Objective Estimation of the 24-h Probability of Tropical Cyclone Formation  

Science Conference Proceedings (OSTI)

A new product for estimating the 24-h probability of TC formation in individual 5 5 subregions of the North Atlantic, eastern North Pacific, and western North Pacific tropical basins is developed. This product uses environmental and ...

Andrea B. Schumacher; Mark DeMaria; John A. Knaff

2009-04-01T23:59:59.000Z

151

Observational Analysis of Heavy Rainfall Mechanisms Associated with Severe Tropical Storm Bilis (2006) after Its Landfall  

Science Conference Proceedings (OSTI)

This observational study attempts to determine factors responsible for the distribution of precipitation over large areas of southern China induced by Bilis, a western North Pacific Ocean severe tropical storm that made landfall on the ...

Shuanzhu Gao; Zhiyong Meng; Fuqing Zhang; Lance F. Bosart

2009-06-01T23:59:59.000Z

152

Contributions of Barotropic Energy Conversion to Northwest Pacific Tropical Cyclone Activity during ENSO  

Science Conference Proceedings (OSTI)

The contribution of barotropic energy conversion to tropical cyclone (TC) activity over the western North Pacific (WNP) during warm and cold phases of El NioSouthern Oscillation (ENSO) is investigated by separating TC vortices from reanalysis ...

Yao Ha; Zhong Zhong; Yimin Zhu; Yijia Hu

2013-04-01T23:59:59.000Z

153

Satellite Observations of Variations in Tropical Cyclone Convection Caused by Upper-Tropospheric Troughs  

Science Conference Proceedings (OSTI)

The mutual adjustment between upper-tropospheric troughs and the structure of western Atlantic Tropical Cyclones Florence (1988) and Irene (1981) are analyzed using satellite and in situ data. Satellite-observed tracers (e.g., cirrus clouds, ...

Edward B. Rodgers; Simon W. Chang; John Stout; Joseph Steranka; Jainn-Jong Shi

1991-08-01T23:59:59.000Z

154

High-Resolution Passive Microwave Observations of Convective Systems over the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

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

Gary McGaughey; Edward J. Zipser; Roy W. Spencer; Robbie E. Hood

1996-11-01T23:59:59.000Z

155

Environmental Dynamical Control of Tropical Cyclone IntensityAn Observational Study  

Science Conference Proceedings (OSTI)

The effects of two environmental dynamical factors, namely, the transitional speed and vertical wind shear, on tropical cyclone (TC) intensification, intensity, and lifetime peak intensity were analyzed based on observations in the western North ...

Zhihua Zeng; Yuqing Wang; Chun-Chieh Wu

2007-01-01T23:59:59.000Z

156

Size and Strength of Tropical Cyclones as Inferred from QuikSCAT Data  

Science Conference Proceedings (OSTI)

A comprehensive statistical climatology of the size and strength of the tropical cyclones (TCs) occurring over the western North Pacific (WNP; including the South China Sea) and the North Atlantic (NA; including the Gulf of Mexico and the ...

Kelvin T. F. Chan; Johnny C. L. Chan

2012-03-01T23:59:59.000Z

157

Performance of the United Kingdom Meteorological Office Global Model in Predicting the Movement of Tropical Cyclones  

Science Conference Proceedings (OSTI)

A detailed evaluation of the performance of the United Kingdom Meteorological Office Global Model (UKMO) in predicting the movement of 15 tropical cyclones (TCs) that occurred over the western North Pacific during 1987 is presented. The ...

Johnny C. L. Chan; Wai-Kau Kay

1993-09-01T23:59:59.000Z

158

Observational Evidence for Alternate Modes of Track-Altering Binary Tropical Cyclone Scenarios  

Science Conference Proceedings (OSTI)

An observational study of western North Pacific tropical cyclones (TC) revealed many cases of two TCs whose tracks were altered by processes that were quite different from the mutual advection (Fujiwhara-type) processes. Thus, four conceptual ...

Lester E. Carr III; Mark A. Boothe; Russell L. Elsberry

1997-09-01T23:59:59.000Z

159

Application of the Marsupial Paradigm to Tropical Cyclone Formation from Northwestward-Propagating Disturbances  

Science Conference Proceedings (OSTI)

A wave-tracking algorithm is developed for northwestward-propagating waves that, on occasion, play a role in tropical cyclogenesis over the western oceans. To obtain the Lagrangian flow structure, the frame of reference is translated obliquely at ...

Zhuo Wang; Timothy J. Dunkerton; Michael T. Montgomery

2012-01-01T23:59:59.000Z

160

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

Science Conference Proceedings (OSTI)

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

J. T. Kiehl

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Dynamical and Precipitation Structures of Poleward-Moving Tropical Cyclones in Eastern Canada, 19792005  

Science Conference Proceedings (OSTI)

Tropical cyclones in the western North Atlantic basin are a persistent threat to human interests along the east coast of North America. Occurring mainly during the late summer and early autumn, these storms often cause strong winds and extreme ...

Shawn M. Milrad; Eyad H. Atallah; John R. Gyakum

2009-03-01T23:59:59.000Z

162

ARM - Site Instruments  

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

PacificInstruments PacificInstruments TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection Visiting the Site TWP Fact Sheet Images Information for Guest Scientists Contacts Instruments : Tropical Western Pacific [ Installed at 3 facilities ] AERI Atmospheric Emitted Radiance Interferometer Radiometric Browse Plots Browse Data [ Installed at 2 facilities ] CSAPR C-Band ARM Precipitation Radar Cloud Properties Browse Data [ Installed at 3 facilities ] CSPHOT Cimel Sunphotometer Aerosols, Radiometric Browse Data [ Single installation ] DISDROMETER Impact Disdrometer Surface Meteorology Browse Plots Browse Data [ Single installation ] DL Doppler Lidar Cloud Properties Browse Data [ Installed at 3 facilities ]

163

ARM - Field Campaign - Tropical Warm Pool - International Cloud...  

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

the US DOE ARM project, the Bureau of Meteorology, NASA, the European Commission DG RTD-1.2 and several United States, Australian, Canadian and European Universities. TWP-ICE...

164

Performance of the Nested Tropical Cyclone Model as a Function of Five Storm-Related Parameters  

Science Conference Proceedings (OSTI)

A detailed analysis of the performance of the U.S. Navy Nested Tropical Cyclone Model (NTCM) for western North Pacific tropical cyclones is made based on five storm-related factors: latitude, longitude, intensity, 12-h intensity change and size (...

Johnny C-L. Chan; Brian J. Williams; Russell L. Elsberry

1987-07-01T23:59:59.000Z

165

Sensitivity of Western Boundary Transport at the Mean North Equatorial Current Bifurcation Latitude to Wind Forcing  

Science Conference Proceedings (OSTI)

The bifurcation of the North Equatorial Current (NEC) plays an important role in the heat and water mass exchanges between the tropical and subtropical gyres in the Pacific Ocean. The variability of western boundary transport (WBT) east of the ...

Xuebin Zhang; Bruce Cornuelle; Dean Roemmich

2012-11-01T23:59:59.000Z

166

Preliminary Results from Multiparameter Airborne Rain Radar Measurement in the Western Pacific  

Science Conference Proceedings (OSTI)

Preliminary results are presented from multiparameter airborne radar measurements of tropical storms. The experiment was conducted in the western Pacific in September 1990 with the NASA DC-8 aircraft that was equipped with a dual-wavelength radar ...

Hiroshi Kumagai; Robert Meneghini; Toshiaki Kozu

1993-02-01T23:59:59.000Z

167

Mesoscale Convective Systems over Western Equatorial Africa and Their Relationship to Large-Scale Circulation  

Science Conference Proceedings (OSTI)

This study examines mesoscale convective systems (MCSs) over western equatorial Africa using data from the Tropical Rainfall Measuring Mission (TRMM) satellite. This region experiences some of the worlds most intense thunderstorms and highest ...

Brian Jackson; Sharon E. Nicholson; Douglas Klotter

2009-04-01T23:59:59.000Z

168

Multiscale Variability of the Atmospheric Mixed Layer over the Western Pacific Warm Pool  

Science Conference Proceedings (OSTI)

Sounding data from Tropical Ocean Global Atmosphere Coupled OceanAtmosphere Response Experiment (TOGA COARE) have provided a first opportunity to document the variability of the atmospheric mixed layer over the western Pacific warm pool on ...

Richard H. Johnson; Paul E. Ciesielski; Jennifer A. Cotturone

2001-09-01T23:59:59.000Z

169

Seasonal tropical cyclone forecasts  

E-Print Network (OSTI)

Seasonal forecasts of tropical cyclone activity in various regions have been developed since the first attempts in the early 1980s by Neville

Suzana J. Camargo; Anthony G. Barnston; Philip J. Klotzbach; Christopher W. Landsea

2007-01-01T23:59:59.000Z

170

Recurving Tropical Cyclones: Singular Vector Sensitivity and Downstream Impacts  

Science Conference Proceedings (OSTI)

Singular vectors (SVs) are used to study the sensitivity of 2-day forecasts of recurving tropical cyclones (TCs) in the western North Pacific to changes in the initial state. The SVs are calculated using the tangent and adjoint models of the Navy ...

Carolyn A. Reynolds; Melinda S. Peng; Jan-Huey Chen

2009-04-01T23:59:59.000Z

171

A Simple Seasonal Forecast Update of Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

A simple method based on the cumulative number of tropical cyclones (TCs) up to a given month in the early season is proposed to update the seasonal prediction of the annual number of TCs in a given ocean basin. For the western North Pacific, if ...

Johnny C. L. Chan

2008-10-01T23:59:59.000Z

172

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

173

Contributions of ENSO and East Indian Ocean SSTA to the Interannual Variability of Northwest Pacific Tropical Cyclone Frequency  

Science Conference Proceedings (OSTI)

This study attempts to understand contributions of ENSO and the boreal summer sea surface temperature anomaly (SSTA) in the East Indian Ocean (EIO) to the interannual variability of tropical cyclone (TC) frequency over the western North Pacific (...

Ruifen Zhan; Yuqing Wang; Xiaotu Lei

2011-01-01T23:59:59.000Z

174

Latent Heating and Cooling Rates in Developing and Nondeveloping Tropical Disturbances during TCS-08: TRMM PR versus ELDORA Retrievals  

Science Conference Proceedings (OSTI)

Unique sets of Electra Doppler Radar (ELDORA) observations in both developing and nondeveloping tropical disturbances in the western North Pacific are used to retrieve latent heating and cooling rates. During the reintensification of Sinlaku, ...

Myung-Sook Park; Russell L. Elsberry

2013-01-01T23:59:59.000Z

175

Spectral Longwave Emission in the Tropics: FTIR Measurement at the Sea Surface and Comparison with Fast Radiation Codes  

Science Conference Proceedings (OSTI)

Longwave emission by the tropical western Pacific atmosphere has been measured at the ocean surface by a Fourier Transform Infrared (FTIR) spectroradiometer deployed aboard the research vessel John Vickers as part of the Central Equatorial ...

Dan Lubin; David Cutchin; William Conant; Hartmut Grassl; Ulrich Schmid; Werner Biselli

1995-02-01T23:59:59.000Z

176

A Comparison of VHF Wind Profiler Observations and the NCEPNCAR Reanalysis over the Tropical Pacific  

Science Conference Proceedings (OSTI)

VHF wind profiler measurements of zonal and meridional winds are compared with the NCEPNCAR reanalysis at sites in the tropical Pacific. By December 1999 the profilers at Darwin, Australia, and Biak, Indonesia, in the western Pacific; Christmas ...

Robert Schafer; Susan K. Avery; Kenneth S. Gage

2003-07-01T23:59:59.000Z

177

ARM - Publications: Science Team Meeting Documents  

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

Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Doelling, D.R., Ho, S.-P., Smith, W.L., Jr., Analytical Services and Materials, Inc.; Minnis, P., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data are needed to provide measurements of the earth-atmosphere shortwave (SW) albedo, outgoing longwave radiation (OLR), and cloud and surface radiative properties for the Atmospheric Radiation Measurement (ARM) Program's Tropical Western Pacific (TWP) domain. Geostationary Meteorological Satellite (GMS) data have been archived since November 1996 and provide the basis for monitoring these essential parameters over the ARM TWP. This paper describes the initial efforts and results of developing

178

Clouds in Tropical Cyclones  

Science Conference Proceedings (OSTI)

Clouds within the inner regions of tropical cyclones are unlike those anywhere else in the atmosphere. Convective clouds contributing to cyclogenesis have rotational and deep intense updrafts but tend to have relatively weak downdrafts. Within ...

Robert A. Houze Jr.

2010-02-01T23:59:59.000Z

179

Clouds in Tropical Cyclones  

Science Conference Proceedings (OSTI)

Clouds within the inner regions of tropical cyclones are unlike those anywhere else in the atmosphere. Convective clouds contributing to cyclogenesis have rotational and deep intense updrafts but tend to have relatively weak downdrafts. Within the ...

Robert A. Houze Jr.

2010-02-01T23:59:59.000Z

180

Small-Scale Cloud Activity over the Maritime Continent and the Western Pacific as Revealed by Satellite Data  

Science Conference Proceedings (OSTI)

Cloud systems over the Maritime Continent and the tropical western Pacific defined by the Geostationary Meteorological Satellite (GMS) were tracked, and their evolution was compared with cloud parameters [e.g., minimum blackbody brightness ...

Yoshimi Kondo; Atsushi Higuchi; Kenji Nakamura

2006-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

The Combined Sensor Program: An AirSea Science Mission in the Central and Western Pacific Ocean  

Science Conference Proceedings (OSTI)

Twelve national research organizations joined forces on a 30-day, 6800 n mi survey of the Central and Tropical Western Pacific on NOAA's Research Vessel Discoverer. The Combined Sensor Program (CSP), which began in American Samoa on 14 March 1996,...

Madison J. Post; Christopher W. Fairall; Jack B. Snider; Yong Han; Allen B. White; Warner L. Ecklund; Klaus M. Weickmann; Patricia K. Quinn; Daniel I. Cooper; Steven M. Sekelsky; Robert E. McIntosh; Peter Minnett; Robert O. Knuteson

1997-12-01T23:59:59.000Z

182

Observed Evolution of Northward-Propagating Intraseasonal Variation over the Western Pacific: A Case Study in Boreal Early Summer  

Science Conference Proceedings (OSTI)

This report describes the in situ observed evolution of the atmospheric profile during an event of the boreal summer intraseasonal variation (BSISV) in the tropical western Pacific Ocean. The convectively active region of the BSISV proceeded ...

Masaki Katsumata; Hiroyuki Yamada; Hisayuki Kubota; Qoosaku Moteki; Ryuichi Shirooka

2013-02-01T23:59:59.000Z

183

Future Change of Western North Pacific Typhoons: Projections by a 20-km-Mesh Global Atmospheric Model  

Science Conference Proceedings (OSTI)

Projected future changes in tropical cyclone (TC) activity over the western North Pacific (WNP) under the Special Report on Emissions Scenarios (SRES) A1B emission scenario were investigated using a 20-km-mesh, very-high-resolution Meteorological ...

Hiroyuki Murakami; Bin Wang; Akio Kitoh

2011-02-01T23:59:59.000Z

184

Why a Large Amount of Rain Falls over the Sea in the Vicinity of Western Sumatra Island during Nighttime  

Science Conference Proceedings (OSTI)

Precipitation measurements from the Tropical Rainfall Measuring Mission satellite indicate that annual rainfall over the sea in the vicinity of western Sumatra Island is among the highest on the earth, and most of this rainfall occurs during ...

Peiming Wu; Masayuki Hara; Jun-ichi Hamada; Manabu D. Yamanaka; Fujio Kimura

2009-07-01T23:59:59.000Z

185

Upper-Ocean Heat Budget in Response to the MaddenJulian Oscillation in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

The upper-ocean heat budget in response to the atmospheric MaddenJulian oscillation (MJO) in the western equatorial Pacific is examined using a tropical Pacific basin general circulation model. The model is forced with surface fluxes associated ...

Toshiaki Shinoda; Harry H. Hendon

2001-11-01T23:59:59.000Z

186

1  

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

Western Pacific 2000 Western Pacific 2000 W. E. Clements, F. J. Barnes, L. Jones, and A. Haruta University of California Los Alamos National Laboratory Los Alamos, New Mexico M. Ivey Sandia National Laboratories Albuquerque, New Mexico P. Lefale South Pacific Regional Environment Programme Apia, Samoa Introduction The Atmospheric Radiation Measurement (ARM) Program's Tropical Western Pacific (TWP) Program is currently operating two Atmospheric Radiation and Cloud Stations (ARCS) in the TWP locale. The first ARCS site was installed on Los Negros Island in Manus Province, Papua New Guinea (PNG), in October 1996. The Tropical Western Pacific Program Office (TWPPO) and the PNG National Weather Service (NWS) have collaborated in operating the Manus site since its installation. Located on Nauru

187

Excitation of Rainfall over the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

The authors have examined 4 years of satellite-derived SST and rainfall data in anticipation of a relationship between SST structure and the excitation of convective rainfall. The results exhibit a strong excitation signal consistent with the ...

Yanping Li; R. E. Carbone

2012-10-01T23:59:59.000Z

188

Tropical Western Pacific T. Ackerman Pennsylvania Sate University  

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

details on this operation in PROBE, see the paper by Westwater et al. in this volume. Pilot Radiation Observation Experiment As the ARM Program's first field campaign, we...

189

A Tropical Cyclone Genesis Parameter for the Tropical Atlantic  

Science Conference Proceedings (OSTI)

A parameter to evaluate the potential for tropical cyclone formation (genesis) in the North Atlantic between Africa and the Caribbean islands is developed. Climatologically, this region is the source of about 40% of the Atlantic basin tropical ...

Mark DeMaria; John A. Knaff; Bernadette H. Connell

2001-04-01T23:59:59.000Z

190

Section 65  

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

Investigating Cloud Radiative Forcing in the Tropical Investigating Cloud Radiative Forcing in the Tropical West Pacific Using a Single-Column Model J. C. Petch and J. T. Kiehl National Center for Atmospheric Research Boulder, Colorado Introduction The Tropical Western Pacific (TWP) is an important region for world climate (Webster and Lucas 1992) and was the subject of the Tropical Ocean Global Atmosphere-Coupled Ocean Atmosphere Response Experiment (TOGA-COARE) in 1992/3. This experiment included an intensive observational period (IOP) from November 1992 through March 1993, which provided observations suitable for creat- ing datasets that can be used for forcing either single-column models (SCMs) or cloud-resolving models (CRMs). Organized cloud systems in the TWP have a major impact on radiation. The accurate representation of these cloud systems

191

Tropical Cyclone Eye Thermodynamics  

Science Conference Proceedings (OSTI)

In intense tropical cyclones, sea level pressures at the center are 50100 hPa lower than outside the vortex, but only 1030 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

192

Tropical Cyclone Eye Dynamics  

Science Conference Proceedings (OSTI)

A new perspective of the dynamics of a tropical cyclone eye is given in which eye subsidence and the adiabatic warming accompanying it are accounted for directly from the equations of motion. Subsidence is driven by an adverse, axial gradient of ...

R. K. Smith

1980-06-01T23:59:59.000Z

193

Tropical Cyclone Formation  

Science Conference Proceedings (OSTI)

The physics of tropical cyclone formation is not well understood, and more is known about the mature hurricane than the formative mechanisms that produce it. It is believed part of the reason for this can be traced to insufficient upper-level ...

Michael T. Montgomery; Brian F. Farrell

1993-01-01T23:59:59.000Z

194

Tropical Cyclone Cloudbands  

Science Conference Proceedings (OSTI)

The outer cloudband structure of a tropical cyclone is kinematically treated as the manifestation of a forced set of waves stationary with respect to the cyclone. When the cyclone wind field is modeled as a Rankine vortex and the cloudbands are ...

Tom Beer; L. Giannini

1980-07-01T23:59:59.000Z

195

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

Science Conference Proceedings (OSTI)

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

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

2004-05-01T23:59:59.000Z

196

Retrievals for the Rainfall Rate over Land Using Special Sensor Microwave Imager Data during Tropical Cyclones: Comparisons of Scattering Index, Regression, and Support Vector Regression  

Science Conference Proceedings (OSTI)

Tropical cyclones, also known as typhoons or hurricanes, are among the most devastating events in nature and often strike the western North Pacific region (including the Philippines, Taiwan, Japan, Korea, China, and others). This paper focuses on ...

Chih-Chiang Wei; Jinsheng Roan

2012-10-01T23:59:59.000Z

197

Warm Core Structures in Organized Cloud Clusters Developing or Not Developing into Tropical Storms Observed by the Advanced Microwave Sounding Unit  

Science Conference Proceedings (OSTI)

The temperature profiles of organized cloud clusters developing or not developing (nondeveloping) into tropical storms (TSs; maximum surface wind >34 kt) over the western North Pacific in 2004 were investigated using Advanced Microwave Sounding ...

Kotaro Bessho; Tetsuo Nakazawa; Shuji Nishimura; Koji Kato

2010-07-01T23:59:59.000Z

198

Western Area Power Administration  

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

served by Western would provide long term economic benefits by increasing the percentage of energy provided by renewable sources. Require New Capacity Be Used Exclusively...

199

Eastern Hemisphere Tropical Cyclones of 1996  

Science Conference Proceedings (OSTI)

This paper is an annual summary of the Eastern Hemisphere tropical cyclones of 1996. The tropical cyclone statistics presented derive from records at the Joint Typhoon Warning Center, Guam. Although the text focuses on the tropical cyclones that ...

Mark A. Lander; Eric J. Trehubenko; Charles P. Guard

1999-06-01T23:59:59.000Z

200

Eastern Hemisphere Tropical Cyclones of 1995  

Science Conference Proceedings (OSTI)

This paper is designed to be an annual summary of the Eastern Hemisphere tropical cyclones of 1995. The tropical cyclone statistics presented are those of the Joint Typhoon Warning Center, Guam. The text focuses primarily upon the tropical ...

Mark A. Lander; Michael D. Angove

1998-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Stream Discharge in Tropical Headwater Catchments as a Result of Forest Clearing and Soil Degradation  

Science Conference Proceedings (OSTI)

Tropical Africa is affected by intense land-use change, particularly forest conversion to agricultural land. In this study, the stream discharge of four small headwater catchments located within an area of 6 km2 in western Kenya was examined for 2 ...

John W. Recha; Johannes Lehmann; M. Todd Walter; Alice Pell; Louis Verchot; Mark Johnson

2012-12-01T23:59:59.000Z

202

Size of Tropical Cyclones as Inferred from ERS-1 and ERS-2 Data  

Science Conference Proceedings (OSTI)

The sizes of the tropical cyclones (TCs) occurring over the western North Pacific (WNP) and the North Atlantic between 1991 and 1996 are estimated to establish a database for the study of the climatology of TC size and the physical processes ...

K. S. Liu; Johnny C. L. Chan

1999-12-01T23:59:59.000Z

203

Reconstructed streamflow for Citarum River, Java, Indonesia: linkages to tropical climate dynamics  

E-Print Network (OSTI)

Reconstructed streamflow for Citarum River, Java, Indonesia: linkages to tropical climate dynamics Abstract The Citarum river basin of western Java, Indonesia, which supplies water to 10 million residents in drought and flood prone regions of the globe (e.g. Boer 2007). In Indonesia, integrated action is needed

Ummenhofer, Caroline C.

204

ARM - Publications: Science Team Meeting Documents  

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

A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over the Tropical Western Pacific Nordeen, M.L.(a), Doelling, D.R.(a), Khaiyer, M.M.(a), Rapp, A.D.(a), and Minnis, P.(b), Analytical Services & Materials, Inc. (a), National Aeronautics and Space Administration-Langley Research Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite derived cloud and radiative properties can provide continuous spatial and temporal coverage over the Tropical Western Pacific (TWP). The TWP is an area with few meteorological stations, but is an interesting region in global climate studies. Starting with the Nauru99 Intensive Operational Period (IOP) (June-July 1999), two years of hourly Geostationary Meteorological Satellite (GSM-5) images are used in the

205

spinhirne-98.pdf  

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

1 1 Optical Properties of the 1997 Smoke Event at the ARM Tropical Western Pacific Site J. D. Spinhirne NASA-Goddard Space Flight Center Laboratory of Atmospheres Greenbelt, Maryland D. L. Hlavka and J. R. Campbell Science Systems and Applications Inc. NASA-Goddard Space Flight Center Greenbelt, Maryland C. J. Flynn Pacific Northwest National Laboratory Richland, Washington Introduction Drought conditions and population pressures in Indonesia and surrounding areas in the Tropical Western Pacific (TWP) sparked massive biomass burning episodes during September-November of 1997. Some of this smoke advected over the Manus Island Atmospheric Radiation Measurement (ARM) TWP site. Analysis of smoke-related aerosol is of interest. Smoke aerosol from biomass burning is thought to be a major source of absorbing aerosol in the

206

X:\ARM_19~1\PGS19-27.WPD  

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

~11µm) ~11µm) T b 2.1 S, T b <273 K, 220 K < T b <273 K, T b <220 K 147 E Session Papers 19 Evidence for Island Effects and Diurnal Signals in Satellite Images of Clouds Over the Tropical Western Pacific S. A. Barr-Kumarakulasinghe Marine Sciences Research Center State University of New York Stony Brook, New York R. M. Reynolds and P. J. Minnett Oceanographic and Atmospheric Sciences Division Brookhaven National Laboratory Upton, New York Introduction Instruments to measure atmospheric radiation and ancillary meteorological variables will be set up on Manus Island as the first site of the tropical western pacific (TWP) locale of the Atmospheric Radiation Measurements (ARM) program. Manus is in the "warm pool" region of the TWP. This region is critical in establishing global atmospheric

207

Nordeen-ML  

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

GMS-5 Satellite-Derived Cloud Properties Over the GMS-5 Satellite-Derived Cloud Properties Over the Tropical Western Pacific M. L. Nordeen, D. R. Doelling, M. M. Khaiyer, and A. D. Rapp Analytical Service and Materials, Inc. Hampton, Virginia P. Minnis and L. Nguyen Atmospheric Sciences Division National Aeronautics and Space Administration Langley Research Center Hampton, Virginia Introduction Satellite monitoring is used to supplement the paucity of surface data in the Tropical Western Pacific (TWP). By using satellite data, cloud properties and top-of-atmosphere broadband radiative fluxes can be derived and used for a variety of applications. In turn, these products may be used to develop a climatological base for the TWP. The focus of this study is to produce satellite-derived cloud properties

208

Atlantic Tropical Systems of 1993  

Science Conference Proceedings (OSTI)

A total of 70 tropical waves (also known as African or easterly waves) were counted in the Atlantic basin during the 1993 hurricane season. These waves led to the formation of 9 of the 10 total number of tropical cyclones in the Atlantic ...

Lixion A. Avila; Richard J. Pasch

1995-03-01T23:59:59.000Z

209

Western Area Power Administration  

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

Loveland Area Projects November 29-30, 2011 2 Agenda * Overview of Western Area Power Administration * Post-1989 Loveland Area Projects (LAP) Marketing Plan * Energy Planning and Management Program * Development of the 2025 PMI Proposal * 2025 PMI Proposal * 2025 PMI Comment Period & Proposal Information * Questions 3 Overview of Western Area Power Administration (Western) * One of four power marketing administrations within the Department of Energy * Mission: Market and deliver reliable, renewable, cost-based Federal hydroelectric power and related services within a 15-state region of the central and western U.S. * Vision: Provide premier power marketing and transmission services Rocky Mountain Region (RMR) is one of five regional offices 4 Rocky Mountain Region

210

Observations of the Equatorial Intermediate Current in the Western Pacific Ocean (165E)  

Science Conference Proceedings (OSTI)

Direct current measurements (0600 m; re. 600 m) were carried out every six months from January 1984 to June 1986 in the western tropical Pacific Ocean (165E) from 20S to 10N. The Equatorial Intermediate Current (EIC) occurred beneath the ...

Thierry Delcroix; Christian Henin

1988-02-01T23:59:59.000Z

211

Tropical Cyclone Winds from Scatterometer Winds  

E-Print Network (OSTI)

this paper, wc demonstrate that accurate estimates of tropical cyclone intensity over data sparse ocean regions

Carol S. Hsu; W. Timothy Liu

1995-01-01T23:59:59.000Z

212

Western Area Power Administration  

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

v*Zy- i , . v*Zy- i , . r ,v * -i S # Af [, (e- . - o -A tl }r- 0 v-" l^~4~S J l ^-)^ I^U^ck iM clti ^ Western Area Power Administration Follow-up to Nov. 25, 2008 Transition Meeting Undeveloped Transmission Right-of-Way Western has very little undeveloped transmission right-of-way. There is a 7-mile right- of-way between Folsom, CA and Roseville, CA where Western acquired a 250' wide right-of-way but is only using half of it. Another line could be built parallel to Western's line to relieve congestion in the Sacramento area. In addition, Western has rights-of- way for many transmission lines that could be rebuilt to increase transmission capacity. For example, Western's Tracy-Livermore 230-kV line is a single circuit line but the existing towers could support a double circuit line. These rights-of-way would have to

213

Tropical Tropospheric Temperature Variations Caused by ENSO and Their Influence on the Remote Tropical Climate  

Science Conference Proceedings (OSTI)

The warming of the entire tropical free troposphere in response to El Nio is well established, and suggests a tropical mechanism for the El NioSouthern Oscillation (ENSO) teleconnection. The potential impact of this warming on remote tropical ...

John C. H. Chiang; Adam H. Sobel

2002-09-01T23:59:59.000Z

214

Interactions of the Tropical Oceans  

Science Conference Proceedings (OSTI)

The authors have investigated the interactions of the tropical oceans on interannual timescales by conducting a series of uncoupled atmospheric and oceanic general circulation experiments and hybrid-coupled model simulations. The results ...

M. Latif; T. P. Barnett

1995-04-01T23:59:59.000Z

215

Climate and the Tropical Oceans  

Science Conference Proceedings (OSTI)

An attempt is made to determine the role of the ocean in establishing the mean tropical climate and its sensitivity to radiative perturbations. A simple two-box energy balance model is developed that includes ocean heat transports as an ...

Amy Clement; Richard Seager

1999-12-01T23:59:59.000Z

216

Heating Rates in Tropical Anvils  

Science Conference Proceedings (OSTI)

The interaction of infrared and solar radiation with tropical cirrus anvils is addressed. Optical properties of the anvils are inferred from satellite observations and from high-altitude aircraft measurements. An infrared multiple-scattering ...

Thomas P. Ackerman; Kuo-Nan Liou; Francisco P. J. Valero; Leonhard Pfister

1988-05-01T23:59:59.000Z

217

Historical Global Tropical Cyclone Landfalls  

Science Conference Proceedings (OSTI)

In recent decades, economic damage from tropical cyclones (TCs) around the world has increased dramatically. Scientific literature published to date finds that the increase in losses can be explained entirely by societal changes (such as ...

Jessica Weinkle; Ryan Maue; Roger Pielke Jr

2012-07-01T23:59:59.000Z

218

Tropical Cyclones and Climate Change  

E-Print Network (OSTI)

Whether the characteristics of tropical cyclones have changed or will change in a warming climate and if so, how has been the subject of considerable investigation, often with conflicting results. Large amplitude ...

Knutson, Thomas R.

219

Microphysical Observations of Tropical Clouds  

Science Conference Proceedings (OSTI)

The results from airborne in situ sampling of convective tropical storms in the Amazon and Kwajalein are presented. Three cases from the Amazon and two from Kwajalein are compared and provide examples of the much larger dataset that was obtained ...

Jeffrey L. Stith; James E. Dye; Aaron Bansemer; Andrew J. Heymsfield; Cedric A. Grainger; Walter A. Petersen; Robert Cifelli

2002-02-01T23:59:59.000Z

220

Research Highlight  

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

(TWP) site at Manus, Papua New Guinea. Drought conditions and population pressures in Indonesia and surrounding areas of the Tropical West Pacific sparked massive biomass burning...

Note: This page contains sample records for the topic "twp tropical western" 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

Five-Year Climatology of Midtroposphere Dry Air Layers in Warm Tropical Ocean Regions as Viewed by AIRS/Aqua  

Science Conference Proceedings (OSTI)

Many studies have commented on the presence of midtroposphere dry air layers in normally moist areas of the warm-pool region in the tropical western Pacific Ocean. In this study, 5 yr of relative humidity (RH) observations from the Atmospheric ...

Sean P. F. Casey; Andrew E. Dessler; Courtney Schumacher

2009-09-01T23:59:59.000Z

222

The Automated Tropical Cyclone Forecasting System (ATCF)  

Science Conference Proceedings (OSTI)

The U.S. Navy Automated Tropical Cyclone Forecasting System (ATCF) is an IBM-AT compatible software package developed for the Joint Typhoon Warning Center (JTWC), Guam. ATCF is designed to assist forecasters with the process of making tropical ...

Ronald J. Miller; Ann J. Schrader; Charles R. Sampson; Ted L. Tsui

1990-12-01T23:59:59.000Z

223

12.811 Tropical Meteorology, Spring 2005  

E-Print Network (OSTI)

This course describes the behavior and dynamics of the tropical troposphere, from the large-scale energy balance down to cumulus convection and tropical cyclones. Topics include: Radiative-convective equilibrium; the Hadley ...

Emanuel, Kerry

224

Tropical-Extratropical Interactions of Intraseasonal Oscillations  

Science Conference Proceedings (OSTI)

Tropical-extratropical interactions of intraseasonal oscillations (ISOs), based on 30 yr (1979-2009) of northern winter observations and theory, are compared. The phase relationships between the tropical signal of the leading theoretical ISO for a ...

Jorgen S. Frederiksen; Hai Lin

225

Midlevel Ventilation's Constraint on Tropical Cyclone Intensity  

E-Print Network (OSTI)

Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a tropical cyclones intensity. An ...

Tang, Brian Hong-An

226

A Ventilation Index for Tropical Cyclones  

E-Print Network (OSTI)

An important environmental control of both tropical cyclone intensity and genesis is vertical wind shear. One hypothesized pathway by which vertical shear affects tropical cyclones is midlevel ventilationor the flux of ...

Tang, Brian

227

Diagnosing Forecast Errors in Tropical Cyclone Motion  

Science Conference Proceedings (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

228

A Global Climatology of Tropical Moisture Exports  

Science Conference Proceedings (OSTI)

In a recent paper, a climatology of tropical moisture exports (TMEs) to the Northern Hemisphere (NH) was constructed on the basis of 7-day forward trajectories, started daily from the tropical lower troposphere, which were required to reach a ...

Peter Knippertz; Heini Wernli; Gregor Glser

2013-05-01T23:59:59.000Z

229

Temperature Advection by Tropical Instability Waves  

Science Conference Proceedings (OSTI)

A numerical model of the tropical Pacific Ocean is used to investigate the processes that cause the horizontal temperature advection of tropical instability waves (TIWs). It is found that their temperature advection cannot be explained by the ...

Markus Jochum; Raghu Murtugudde

2006-04-01T23:59:59.000Z

230

Why Are There Tropical Warm Pools?  

Science Conference Proceedings (OSTI)

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

Amy C. Clement; Richard Seager; Raghu Murtugudde

2005-12-01T23:59:59.000Z

231

Distribution of Tropical Tropospheric Water Vapor  

Science Conference Proceedings (OSTI)

Utilizing a conceptual model for tropical convection and observational data for water vapor, the maintenance of the vertical distribution of the tropical tropospheric water vapor is discussed. While deep convection induces large-scale subsidence ...

De-Zheng Sun; Richard S. Lindzen

1993-06-01T23:59:59.000Z

232

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

233

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

234

parsons-99.PDF  

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

Response of the Tropical Western Pacific Region Response of the Tropical Western Pacific Region to a Dry Intrusion from the Perspective of Observations, A Cloud Resolving Model and a Single-Column Model D. B. Parsons National Center for Atmospheric Research Boulder, Colorado J.-L. Redelsperger Centre National Recherches MJtJorologique CNRS and MJtJo-France Toulouse, France Introduction The appearance of extremely dry air over the Tropical Western Pacific (TWP) has received a great deal of attention in recent years (e.g., Parsons et al. 1994; Numaguti et al. 1995; Yoneyama and Fujitani 1995; Mapes and Zuidema 1996; Johnson et al. 1996; Sheu and Liu 1995; DeMott and Rutledge 1998; Yoneyama and Parsons 1999; Parsons et al. 1999). These dry air events are termed dry intrusions or dry tongues, since the dry air originates aloft at higher latitudes and subsides into the tropics in long

235

Western Solargenics | Open Energy Information  

Open Energy Info (EERE)

to: navigation, search Name Western Solargenics Place Coquitlam, British Columbia, Canada Zip V3J 2L7 Sector Solar, Wind energy Product Subsidiary firm of Western Wind, to...

236

The Role of Disturbance in Dry Tropical Forest Landscapes  

Science Conference Proceedings (OSTI)

Disturbance can be defined as 'any relatively discrete event in time that disrupts ecosystem, community, or population structure and changes resources, substrate availability, or the physical environment'. This definition requires that the spatial and temporal scales of the system and disturbance be determined. Disturbances are typically characterized by their size, spatial distribution, frequency or return time, predictability, and magnitude (which includes both intensity and severity). These disturbance attributes set the parameters for the suite of species, both plant and animal, that can persist within a given system. As such, an understanding of seasonally dry tropical forests in Asia requires an understanding of disturbance within the region. However, disturbances are relatively poorly understood in dry tropical forests, partly because of the weak seasonality in temperature and high tree species diversity of these forests relative to most forest systems of the world. There are about 1,048,700 km{sup 2} of dry tropical forests worldwide and that only 3% of this land is in conservation status. In other words, 97% of the world's seasonally dry tropical forest is at risk of human disturbance. About half of this forest occurs in South America, where most of the conservation lands are located. Satellite imagery based on MODIS (Moderate Resolution Imaging Spectroradiometer) data shows that only about 3.8% of the world's dry tropical forests are in Australia and South east Asia. The susceptibility of these forests to human disturbances is of great concern and is largely unstudied. Because natural disturbance regimes shape the ecosystem structure and are in many ways integral to these forest systems, it is critical to know how natural disturbance affects dry forest in order to understand the effects of human activities on these forests. Even basic information about disturbances in dry tropical forests is only recently available. Therefore this chapter brings together much of the available information from dry tropical forest throughout the world with the goal of developing an understanding of the role of disturbance in Asian dry forests. Most ecologists now recognize that disturbances, rather than being catastrophic agents of destruction, are a normal, perhaps even an integral, part of long-term system dynamics. The composition, structure, organization, and development and trophic dynamics of most forest systems are the products of disturbances. As an example, the forest composition for two disturbances in the Anaikatty Hills of Western Ghats were compared, where the low disturbance was from past logging followed by cutting and illicit felling and grazing and the high disturbance was due to human presence, past logging, and fuelwood collection. They found higher species richness and Shannon-Wiener diversity index for the low-disturbance forest (98 and 3.9, respectively) compared to the high-disturbance stand (45 and 2.71, respectively) as well as significant differences in mean basal area of trees, density of seedlings, number of species, density and diversity of shrubs, and number of species and diversity of herbs. Some ecological systems contain species that have evolved in response to disturbances. Adaptations typical of dry tropical forest plants are drought tolerance, seed dispersal mechanisms, and the ability to sprout subsequent to disturbance. In contrast, evidence was found that human disturbance in Kakamega Forest of western Kenya has significantly reduced allelic richness and heterozygosity, increased inbreeding, and slightly reduced gene flow in Prunus africana in the past century.

Dale, Virginia H [ORNL

2011-01-01T23:59:59.000Z

237

Western Veg Management EA  

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

the the Glen Canyon to Pinnacle Peak 345 kV Transmission Lines Vegetation Management Project within the Coconino National Forest DOE/EA-1863 July 2012 Lead Agency: United States Department of Energy, Western Area Power Administration Cooperating Agency: United States Forest Service Coconino National Forest FINAL ENVIRONMENTAL ASSESSMENT DOE/EA-1863 Glen Canyon - Pinnacle Peak 345 kV Transmission Lines Vegetation Management Project Coconino and Yavapai Counties, Arizona U.S. Department of Energy Western Area Power Administration Desert Southwest Customer Service Region 615 South 43rd Avenue Phoenix, Arizona 85009 U.S. Department of Agriculture US Forest Service Coconino National Forest 1824 S. Thompson St. Flagstaff, AZ 86001 July 2012

238

WESTERN UNIVERSITY Disaster Plan  

E-Print Network (OSTI)

.7 Assumptions 1.7.1 Emergency 1.7.2 Disaster 1.8 Concept of Operations 1.8.1 Background 1.8.2 Emergency Response/Administrative Unit Responsibilities 1.8.8 Situation Reports 2. UTILIZING THE DISASTER PLAN 2.1 Emergency Process Members ­ Individual Responsibilities #12;WESTERN UNIVERSITY Disaster Plan January, 2013 2.7.1 VP

Sinnamon, Gordon J.

239

Atlantic Tropical Systems of 1979  

Science Conference Proceedings (OSTI)

The 1979 hurricane season produced 85 tropical system of which 27 acquired the closed circulation of a depression 52 of these originated over the African Continent. African seedlings initiated 7 of the 8 named Atlantic storm and 7 of the 10 ...

Neil L. Frank; Gilbert Clark

1980-07-01T23:59:59.000Z

240

Surface Buoyancy Forcing and the Mixed Layer of the Western Pacific Warm Pool: Observations and 1D Model Results  

Science Conference Proceedings (OSTI)

The broad, shallow body of warm (>29C) water found in the western tropical Pacific Ocean plays an important role in the coupled ocean-atmosphere dynamics and thermodynamics associated with the El Nio-Southern Oscillation phenomenon. Thus, it is ...

Steven P. Anderson; Robert A. Weller; Roger B. Lukas

1996-12-01T23:59:59.000Z

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


241

To the Western Governors:  

E-Print Network (OSTI)

The Clean and Diversified Energy Advisory Committee (CDEAC) is pleased to present you with its report and recommendations for achieving and potentially exceeding your clean and diversified energy objectives. This report represents the culmination of an enormous effort by hundreds of individuals representing a broad range of backgrounds and interests. This report and the reports of the CDEAC task forces represent a comprehensive and balanced look at transmission, energy efficiency and clean energy resources. These documents represent the best thinking of some of the most accomplished experts across an array of issues. The strength of the CDEAC report is the recommendations for consideration by the Governors. We have organized the recommendations into those that can be considered by individual states, those that suggest opportunities for action on a regional level, and those that offer the potential for influencing national policy. As requested by your charge to the CDEAC, the recommendations stress non-mandatory, incentive-based approaches. The CDEAC believes that the suite of recommendations is worthy of consideration and adoption by the Western Governors where appropriate. The CDEAC believes this report offers the Western Governors a host of viable options for increasing

William J. Keese

2006-01-01T23:59:59.000Z

242

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

243

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

244

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

245

Western Area Power Administration  

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

Western Area Power Administration Customer Meeting The meeting will begin at 12:30 pm MST We have logged on early for connectivity purposes Please stand-by until the meeting begins Please be sure to call into the conference bridge at: 888-989-6414 Conf. Code 60223 If you have connectivity issues, please contact: 866-900-1011 1 Introduction  Welcome  Introductions  Purpose of Meeting ◦ Status of the SLCA/IP Rate ◦ SLCA/IP Marketing Plan ◦ Credit Worthiness Policy ◦ LTEMP EIS update ◦ Access to Capital  Handout Materials http://www.wapa.gov/crsp/ratescrsp/default.htm 2 SLCA/IP Rate 3 1. Status of Repayment 2. Current SLCA/IP Firm Power Rate (SLIP-F9) 3. Revenue Requirements Comparison Table 4.SLCA/IP Rate 5. Next Steps

246

An Objective Algorithm for Detecting and Tracking Tropical Cloud Clusters: Implications for Tropical Cyclogenesis Prediction  

Science Conference Proceedings (OSTI)

An algorithm to detect and track global tropical cloud clusters (TCCs) is presented. TCCs are organized large areas of convection that form over warm tropical waters. TCCs are important because they are the seedlings that can evolve into ...

Christopher C. Hennon; Charles N. Helms; Kenneth R. Knapp; Amanda R. Bowen

2011-08-01T23:59:59.000Z

247

Generalized Inversion of Tropical AtmosphereOcean Data and a Coupled Model of the Tropical Pacific  

Science Conference Proceedings (OSTI)

It is hypothesized that the circulation of the tropical Pacific Ocean and atmosphere satisfies the equations of a simple coupled model to within errors having specified covariances, and that the Tropical AtmosphereOcean array (TAO) measures the ...

Andrew F. Bennett; Boon S. Chua; D. Ed Harrison; Michael J. McPhaden

1998-07-01T23:59:59.000Z

248

Tropical Indian Ocean Influence on Northwest Pacific Tropical Cyclones in Summer following Strong El Nio  

Science Conference Proceedings (OSTI)

In the summer following a strong El Nio, tropical cyclone (TC) number decreases over the Northwest (NW) Pacific despite little change in local sea surface temperature. The authors analysis suggests El Nioinduced tropical Indian Ocean (TIO) ...

Yan Du; Lei Yang; Shang-Ping Xie

2011-01-01T23:59:59.000Z

249

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

250

ARM - Publications: Science Team Meeting Documents: Ensemble Single Column  

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

Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Ensemble Single Column Modelling (ESCM) in the Tropical Western Pacific Hume, Timothy Bureau of Meteorology Research Centre Jakob, Christian BMRC Single column models (SCMs) are useful tools for the evaluation of parameterisations of radiative and moist processes used in general circulation models. Most SCM studies to date have concentrated on regions where there is a sufficiently dense observational network to derive the required forcing data, such as the Southern Great Plains. This poster describes an ensemble single column modelling (ESCM) approach, where an ensemble of SCM forcing data sets are derived from numerical weather prediction (NWP) analyses. The technique is applied to SCM runs at the Manus Island and Nauru ARM sites in the Tropical Western Pacific (TWP). It

251

Tropic, Utah: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

| Sign Up Search Page Edit with form History Facebook icon Twitter icon Tropic, Utah: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates...

252

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...

253

INTER-AMERICAN TROPICAL TUNA COMMISSION COMISIN INTERAMERICANA DEL ATN TROPICAL  

E-Print Network (OSTI)

INTER-AMERICAN TROPICAL TUNA COMMISSION COMISI?N INTERAMERICANA DEL AT?N TROPICAL 73RD MEETING The Inter-American Tropical Tuna Commission (IATTC): Taking into account the FAO International Plan to evaluate the incidental mortality of seabirds during longline fishing operations for tunas and tuna

254

Western LNG project - Project summary  

Science Conference Proceedings (OSTI)

The Western LNG Project is a major new undertaking involving the liquefaction of conventional natural gas from the Western Canadian Sedimentary Basin at a plant on the British Columbia north coast. The gas in its liquid form will be shipped to Japan for consumption by utility companies. The Project represents a new era in gas processing and marketing for the Canadian natural gas industry.

Forgues, E.L.

1984-02-01T23:59:59.000Z

255

Adjustment of the Remote Tropical Climate to El Nio Conditions  

Science Conference Proceedings (OSTI)

The adjustment of the tropical climate outside the Pacific (the remote Tropics) to the abrupt onset of El Nio conditions is examined in a tropical atmosphere model that assumes simplified vertical structure and quasi-equilibrium (QE) ...

Benjamin R. Lintner; John C. H. Chiang

2007-06-01T23:59:59.000Z

256

Influence of Tropical Tropopause Layer Cooling on Atlantic Hurricane Activity  

Science Conference Proceedings (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 outflow temperature ...

Kerry Emanuel; Susan Solomon; Doris Folini; Sean Davis; Chiara Cagnazzo

2013-04-01T23:59:59.000Z

257

Impacts of Atmospheric Temperature Trends on Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

Impacts of tropical temperature changes in the upper troposphere (UT) and the tropical tropopause layer (TTL) on tropical cyclone (TC) activity are explored. UT and lower TTL cooling both lead to an overall increase in potential intensity (PI), ...

Gabriel A. Vecchi; Stephan Fueglistaler; Isaac M. Held; Thomas R. Knutson; Ming Zhao

2013-06-01T23:59:59.000Z

258

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

259

Long-Term Observations of Tropical Instability Waves  

Science Conference Proceedings (OSTI)

Reynolds sea surface temperature (SST) data showing tropical instability waves (TIWs) in the tropical Pacific are analyzed along with current measurements from the Tropical AtmosphereOcean (TAO) buoy array and wind speeds from the European ...

Robert F. Contreras

2002-09-01T23:59:59.000Z

260

Observed Antarctic Interannual Climate Variability and Tropical Linkages  

Science Conference Proceedings (OSTI)

This study reviews the mechanisms associated with Antarctictropical climate linkages and presents new analyses of the seasonality and spatial patterns of tropical climate signals in the Antarctic for the late 1950s to the present. Tropical ...

David P. Schneider; Yuko Okumura; Clara Deser

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

knuteson-99.PDF  

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

Observations at the ARM SGP, NSA, Observations at the ARM SGP, NSA, and TWP CART Sites R. O. Knuteson, H. E. Revercomb, F. A. Best, R. G. Dedecker, R. G. Garcia, H. B. Howell, D. C. Tobin, and V. P. Walden Space Science and Engineering Center University of Wisconsin Madison, Wisconsin Introduction A total of eight Atmospheric Emitted Radiance Interferometer (AERI) systems, developed at the University of Wisconsin-Madison Space Science and Engineering Center (UW-SSEC) for the measurement of the downwelling infrared radiance spectrum, have now been deployed at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP), Tropical Western Pacific (TWP), and North Slope of Alaska (NSA) Cloud And Radiation Testbed (CART) sites (Revercomb 1993). In this paper we will review the status and recent results obtained from these AERI

262

white-98.pdf  

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

5 5 A Comparison of Shipboard and Island Observations from the Combined Sensor Program A. B. White Cooperative Institute for Research in Environmental Sciences University of Colorado NOAA-Environmental Technology Laboratory Boulder, Colorado C. W. Fairall and M. J. Post NOAA-Environmental Technology Laboratory Boulder, Colorado Introduction Two issues concerning the Tropical Western Pacific (TWP) Atmospheric Radiation and Cloud Stations (ARCS) are these: To what degree are the measurements obtained from the island ARCS influenced by the islands themselves? What is the spatial representativeness of measurements from individual ARCS in the TWP region? The 1996 Combined Sensor Program (CSP) (Post et al. 1997) gave an opportunity to address these questions by providing

263

ARM - Instrument - gms  

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

govInstrumentsgms govInstrumentsgms Documentation GMS : XDC documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Geostationary Meteorological Satellite (GMS) Note: gms is currently inactive and/or retired. Active Dates 1996.10.01 - 2003.02.16 Instrument Categories Satellite Observations General Overview GMS-5 satellite images are taken over the Tropical Western Pacific (TWP), over each of the TWP sites. The raw data are downlinked to the SeaSpace Corp. receiving station at the University of Hawaii. The GMS-5 was launched in March 1995 into a geostationary orbit above 0°N, 140°E. It carries a Visible and Infrared Spin Scan Radiometer (VISSR) with four channels, one

264

Tropical Cyclones and Global Climate Change: A Post-IPCC Assessment  

E-Print Network (OSTI)

The very limited instrumental record makes extensive analyses of the natural variability of global tropical cyclone activities difficult in most of the tropical cyclone basins. However, in the two regions where reasonably reliable records exist (the North Atlantic and the western North Pacific), substantial multidecadal variability (particularly for intense Atlantic hurricanes) is found, but there is no clear evidence of long-term trends. Efforts have been initiated to use geological and geomorphological records and analysis of oxygen isotope ratios in rainfall recorded in cave stalactites to establish a paleoclimate of tropical cyclones, but these have not yet produced definitive results. Recent thermodynamical estimation of the maximum potential intensities (MPI) of tropical cyclones shows good agreement with observations. Although there are some uncertainties in these MPI approaches, such as their sensitivity to variations in parameters and failure to include some potentially important interactions such as ocean spray feedbacks, the response of upperoceanic thermal structure, and eye and eyewall dynamics, they do appear to be an objective tool with which to predict present and future maxima of tropical cyclone intensity. Recent studies indicate the MPI of cyclones will remain the same or undergo a modest increase of up to 10%--20%. These predicted changes are small compared with the observed natural variations and fall within the uncertainty range in current studies. Furthermore, the known omissions (ocean spray, momentum restriction, and possibly also surface to 300-hPa lapse rate changes) could all operate to mitigate the predicted intensification. A strong caveat must be placed on analysis of results from current GCM simulations of the "tropical-cyc...

Henderson-Sellers Zhang Berz; A. Henderson-sellers; H. Zhang; G. Berz; K. Emanuel; W. Gray; G. Holl; J. Lighthill; S-l. Shieh; P. Webster; K. Mcguffie

1998-01-01T23:59:59.000Z

265

Tropical Africa: Land Use, Biomass, and Carbon Estimates for...  

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

Tropical Africa: Land Use, Biomass, and Carbon Estimates for 1990 image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNL...

266

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

Ocean dynamics and thermodynamics in the tropical Indo-Ocean dynamics and thermodynamics in the tropical Indo-affect the dynam- ics and thermodynamics of the upper ocean.

Drushka, Kyla

2011-01-01T23:59:59.000Z

267

The Western Edge: some recent electronic music from Western Australia  

Science Conference Proceedings (OSTI)

A survey is presented of developments in recent Western Australian electronic music, focusing on the geographical influence on local composers' work. The article follows specific cases of practitioners in the fields of Sound Art (Alan Lamb and Hannah ...

Lindsay Vickery

2001-04-01T23:59:59.000Z

268

Interannual Variation of the Tropical Easterly Jet  

Science Conference Proceedings (OSTI)

The 200-mb tropical wind fields analyzed at Florida State University for 196574 and the 200 and 700 mb tropical wind fields from the National Meteorological Center for 197982 were used to explore the mechanism for the interannual variation of ...

Tsing-Chang Chen; Harry van Loon

1987-08-01T23:59:59.000Z

269

A Ventilation Index for Tropical Cyclones  

Science Conference Proceedings (OSTI)

An important environmental control of both tropical cyclone intensity and genesis is vertical wind shear. One hypothesized pathway by which vertical shear affects tropical cyclones is midlevel ventilationor the flux of low-entropy air into the center of ...

Brian Tang; Kerry Emanuel

2012-12-01T23:59:59.000Z

270

Tropical cyclones and climate change review article  

E-Print Network (OSTI)

Whether the characteristics of tropical cyclones have changed or will change in a warming climate and if so, how has been the subject of considerable investigation, often with conflicting results. Large amplitude fluctuations in the frequency and intensity of tropical cyclones greatly complicate both the detection of long-term trends and their attribution to rising levels of atmospheric greenhouse gases. Trend detection is further impeded by substantial limitations in the availability and quality of global historical records of tropical cyclones. Therefore, it remains uncertain whether past changes in tropical cyclone activity have exceeded the variability expected from natural causes. However, future projections based on theory and high-resolution dynamical models consistently indicate that greenhouse warming will cause the globally averaged intensity of tropical cyclones to shift towards stronger storms, with intensity increases of 211 % by 2100. Existing modelling studies also consistently project decreases in the globally averaged frequency of tropical cyclones, by 634%. Balanced against this, higher resolution modelling studies typically project substantial increases in the frequency of the most intense cyclones, and increases of the order of 20% in the precipitation rate within 100 km of the storm centre. For all cyclone parameters, projected changes for individual basins show large variations between different modelling studies. The challenge for climate change detection and attribution research with regard to tropical cyclones is to determine whether an observed change in tropical cyclone activity

Thomas R. Knutson; John L. Mcbride; Johnny Chan; Kerry Emanuel; Greg Holl; Chris L; Isaac Held; James P. Kossin; A. K. Srivastava; Masato Sugi

2010-01-01T23:59:59.000Z

271

Tropical Cyclones as a Critical Phenomenon  

E-Print Network (OSTI)

It has been proposed that the number of tropical cyclones as a function of the energy they release is a decreasing power-law function, up to a characteristic energy cutoff determined by the spatial size of the ocean basin in which the storm occurs. This means that no characteristic scale exists for the energy of tropical cyclones, except for the finite-size effects induced by the boundaries of the basins. This has important implications for the physics of tropical cyclones. We discuss up to what point tropical cyclones are related to critical phenomena (in the same way as earthquakes, rainfall, etc.), providing a consistent picture of the energy balance in the system. Moreover, this perspective allows one to visualize more clearly the effects of global warming on tropical-cyclone occurrence.

Corral, A

2011-01-01T23:59:59.000Z

272

Scaling of Tropical-Cyclone Dissipation  

E-Print Network (OSTI)

The influence of climate variability and global warming on the occurrence of tropical cyclones (TC) is a controversial issue. Existing historical databases on the subject are not fully reliable, but a more fundamental hindrance is the lack of basic understanding regarding the intrinsic nature of tropical cyclone genesis and evolution. It is known that tropical cyclones involve more than a passive response to changing external forcing, but it is not clear which dynamic behaviour best describes them. Here we present a new approach based on the application of the power dissipation index (PDI), which constitutes an estimation of released energy, to individual tropical cyclones. A robust law emerges for the statistics of PDI, valid in four different ocean basins and over long time periods. In addition to suggesting a novel description of the physics of tropical cyclones in terms of critical phenomena, the law allows to quantify their response to changing climatic conditions, with an increase in the largest PDI val...

Osso, Albert; Llebot, J E

2009-01-01T23:59:59.000Z

273

Western Electricity Coordinating Council (WECC) Webinar  

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

Hosted by the Western Electricity Coordinating Council (WECC), the regional entity responsible for coordinating and promoting bulk electric system reliability in the Western Interconnection, this...

274

Topic A" Awardee: Western Electricity Coordinating Council |...  

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

A" Awardee: Western Electricity Coordinating Council Topic A" Awardee: Western Electricity Coordinating Council Regional Transmission Expansion Planning (RTEP) The America Recovery...

275

Looking at Western Nepal's Climate  

Science Conference Proceedings (OSTI)

Working in western Nepal as a climatologist, one encounters conditions and problems very different from those in technologically advanced countries. This article discusses the working environment, the present state of climatology, some recent ...

Norman Thyer

1985-06-01T23:59:59.000Z

276

Statistical Relationships of the Tropical Rainfall Measurement Mission (TRMM) Precipitation and Large-scale Flow  

E-Print Network (OSTI)

The relationship between precipitation and large-flow is important to understand and characterize in the climate system. We examine statistical relationships between the Tropical Rainfall Measurement Mission (TRMM) 3B42 gridded precipitation and large-scale ow variables in the Tropics for 2000{2007. These variables include NCEP/NCAR Re-analysis sea surface temperatures (SSTs), vertical temperature pro files, omega, and moist static energy, as well as Atmospheric Infrared Sounder (AIRS) vertical temperatures and QuikSCAT surface divergence. We perform correlation analysis, empirical orthogonal function analysis, and logistic regression analysis on monthly, pentad, daily and near-instantaneous time scales. Logistic regression analysis is able to incorporate the non-linear nature of precipitation in the relation- ship. Flow variables are interpolated to the 0.25 degrees TRMM 3B42 grid and examined separately for each month to o set the effects of the seasonal cycle. January correlations of NCEP/NCAR Re-analysis SSTs and TRMM 3B42 precipitation have a coherent area of positive correlations in the Western and Central Tropical Pacific on all time scales. These areas correspond with the South Pacific Convergence Zone (SPCZ) and the Inter Tropical Convergence Zone (ITCZ). 500mb omega is negatively correlated with TRMM 3B42 precipitation across the Tropics on all time scales. QuikSCAT divergence correlations with precipitation have a band of weak and noisy correlations along the ITCZ on monthly time scales in January. Moist static energy, calculated from NCEP/NCAR Re-analysis has a large area of negative correlations with precipitation in the Central Tropical Pacific on all four time scales. The first few Empirical Orthogonal Functions (EOFs) of vertical temperature profiles in the Tropical Pacific have similar structure on monthly, pentad, and daily timescales. Logistic regression fit coefficients are large for SST and precipitation in four regions located across the Tropical Pacific. These areas show clear thresholded behavior. Logistic regression results for other variables and precipitation are less clear. The results from SST and precipitation logistic regression analysis indicate the potential usefulness of logistic regression as a non-linear statistic relating precipitation and certain ow variables.

Borg, Kyle

2010-05-01T23:59:59.000Z

277

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":""}]}

278

Interannual Variability of Northwest Australian Tropical Cyclones  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity over the southeast Indian Ocean has been studied far less than other TC basins, such as the North Atlantic and northwest Pacific. The authors examine the interannual TC variability of the northwest Australian (NWAUS)...

Kevin H. Goebbert; Lance M. Leslie

2010-09-01T23:59:59.000Z

279

Tropical Squall Lines of the Arizona Monsoon  

Science Conference Proceedings (OSTI)

Squall lines possessing nearly all the characteristics of tropical squall lines occasionally develop during the summer monsoon over southern Arizona and northwestern Mexico. Initial thunderstorm formation is over the Continental Divide in the ...

Walter P. Smith; Robert L. Gall

1989-07-01T23:59:59.000Z

280

Tropical Transition of the 2001 Australian Duck  

Science Conference Proceedings (OSTI)

In March 2001, a hybrid low pressure system, unofficially referred to as Donald (or the Duck), developed in the Tasman Sea under tropicalextratropical 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

Note: This page contains sample records for the topic "twp tropical western" 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

On Climate Prediction in the Tropics  

Science Conference Proceedings (OSTI)

Climatic disasters are common in many tropical regions, and rainfall anomalies in particular have a severe human impact. Accordingly, both the World Climate Programme and the U.S. National Climate Program have identified climate prediction as a ...

Stefan Hastenrath

1986-06-01T23:59:59.000Z

282

Tropical Atlantic Biases in CCSM4  

Science Conference Proceedings (OSTI)

This paper focuses on diagnosing biases in the seasonal climate of the tropical Atlantic in the twentieth-century simulation of the Community Climate System Model, version 4 (CCSM4). The biases appear in both atmospheric and oceanic components. ...

Semyon A. Grodsky; James A. Carton; Sumant Nigam; Yuko M. Okumura

2012-06-01T23:59:59.000Z

283

Tropical Storm Formation in a Baroclinic Environment  

Science Conference Proceedings (OSTI)

An analysis is presented of the large-scale conditions associated with the initial development of Tropical Storm Diana (September 1984) in a baroclinic environment. Ordinary extratropical wave cyclogenesis began along an old frontal boundary east ...

Lance F. Bosart; Joseph A. Bartlo

1991-08-01T23:59:59.000Z

284

Regional Differences in Tropical Lightning Distributions  

Science Conference Proceedings (OSTI)

Observations from the National Aeronautics and Space Administration Optical Transient Detector (OTD) and Tropical Rainfall Measuring Mission (TRMM)-based Lightning Imaging Sensor (LIS) are analyzed for variability between land and ocean, various ...

Dennis J. Boccippio; Steven J. Goodman; Stan Heckman

2000-12-01T23:59:59.000Z

285

Inner Core Strength of Atlantic Tropical Cyclones  

Science Conference Proceedings (OSTI)

The evolution of the wind field beyond the radius of maximum winds is studied for 18 Atlantic tropical cyclones (TCs) with 989 research and reconnaissance flight legs. Inner core strength, defined as the storm relative mean tangential wind from ...

Mark Croxford; Gary M. Barnes

2002-01-01T23:59:59.000Z

286

The Thermal Structure of Tropical Easterly Waves  

Science Conference Proceedings (OSTI)

A procedure is introduced to derive a general balance condition for synoptic-scale disturbances in the tropics. The condition describes a balance between the mean pressure and momentum fields, and the pressure forcing by cumulus clouds. A simple ...

Han-Ruo Cho; Mary Ann Jenkins

1987-09-01T23:59:59.000Z

287

A Numerical Investigation of Tropical Island Thunderstorms  

Science Conference Proceedings (OSTI)

A version of the United Kingdom Meteorological Office mesoscale weather prediction model is used to simulate cases of deep tropical convection from the Island Thunderstorm Experiment off the north coast of Australia. Selected cases contrast ...

B. W. Golding

1993-05-01T23:59:59.000Z

288

Climatic Regimes of Tropical Convection and Rainfall  

Science Conference Proceedings (OSTI)

Annual distribution and phase propagation of tropical convection are delineated using harmonic and amplitude-phase characteristics analysis of climatological pentad mean outgoing longwave radiation and monthly frequencies of highly reflective ...

Bin Wang

1994-07-01T23:59:59.000Z

289

An Observational Analysis of Tropical Cyclone Recurvature  

Science Conference Proceedings (OSTI)

Data for 21 years (195777) of North Pacific rawinsondes were examined to investigate the interaction between the synoptic-scale circulation and tropical cyclones prior to, and during, the recurvature process. This study is believed to be the ...

Stephen Hodanish; William M. Gray

1993-10-01T23:59:59.000Z

290

Quasi-balanced Dynamics in the Tropics  

Science Conference Proceedings (OSTI)

We propose a quasi-balance dynamical system of equations for slowly evolving, large-scale motions in the tropics. Unlike other balance schemes, equatorially trapped Kelvin waves are included. Following the lead of Gill, this system is based on ...

Duane E. Stevens; Hung-Chi Kuo; Wayne H. Schubert; Paul E. Ciesielski

1990-10-01T23:59:59.000Z

291

Potential Vorticity Dynamics of Tropical Instability Vortices  

Science Conference Proceedings (OSTI)

Tropical instability vortices (TIVs) in the equatorial Pacific exhibit energetic horizontal and vertical circulation characterized by regions of high Rossby number and low Richardson number. Their strong anticyclonic vorticity and vertical shear ...

Ryan M. Holmes; Leif N. Thomas; LuAnne Thompson; David Darr

292

Experiments with a Spectral Tropical Cyclone Model  

Science Conference Proceedings (OSTI)

The three-layer balanced axisymmetric tropical cyclone model presented by Ooyama is generalized to dimensions and the resultant primitive equations are solved using the spectral (Galerkin) method with Fourier basis functions on a doubly-periodic ...

Mark DeMaria; Wayne H. Schubert

1984-03-01T23:59:59.000Z

293

The Maximum Potential Intensity of Tropical Cyclones  

Science Conference Proceedings (OSTI)

A thermodynamic approach to estimating maximum potential intensity (MPI) of tropical cyclones is described and compared with observations and previous studies. The approach requires an atmospheric temperature sounding, SST, and surface pressure; ...

Greg J. Holland

1997-11-01T23:59:59.000Z

294

Tropical Cyclone Lightning and Rapid Intensity Change  

Science Conference Proceedings (OSTI)

A large sample of Atlantic and eastern North Pacific tropical cyclone cases (200510) is used to investigate the relationships between lightning activity and intensity changes for storms over water. The lightning data are obtained from the ground-...

Mark DeMaria; Robert T. DeMaria; John A. Knaff; Debra Molenar

2012-06-01T23:59:59.000Z

295

Dynamical Balances and Tropical Stratospheric Upwelling  

Science Conference Proceedings (OSTI)

The dynamical balances associated with upwelling in the tropical lower stratosphere are investigated based on climatological 40-yr ECMWF Re-Analysis (ERA-40) and NCEPNCAR reanalysis data. Zonal mean upwelling is calculated from momentum balance ...

William J. Randel; Rolando Garcia; Fei Wu

2008-11-01T23:59:59.000Z

296

Momentum Transports Associated with Tropical Cyclone Recurvature  

Science Conference Proceedings (OSTI)

This study attempts to investigate the linear momentum budget responsible for tropical cyclone (TC) recurvature. Using the operational analyses from the U.K. Meteorological Office global model, the environmental flow associated with recurving TCs ...

Y. S. Li; Johnny C. L. Chan

1999-06-01T23:59:59.000Z

297

Building Blocks of Tropical Diabatic Heating  

Science Conference Proceedings (OSTI)

Rotated EOF analyses are used to study the composition and variability of large-scale tropical diabatic heating profiles estimated from eight field campaigns. The results show that the profiles are composed of a pair of building blocks. These are ...

Samson Hagos

2010-07-01T23:59:59.000Z

298

Geostationary Doppler Radar and Tropical Cyclone Surveillance  

Science Conference Proceedings (OSTI)

The potential usefulness of spaceborne Doppler radar as a tropical cyclone observing tool is assessed by conducting a high-resolution simulation of an intense hurricane and generating synthetic observations of reflectivity and radial velocity. The ...

William E. Lewis; Eastwood Im; Simone Tanelli; Ziad Haddad; Gregory J. Tripoli; Eric A. Smith

2011-10-01T23:59:59.000Z

299

Satellite Microwave Surface Observations in Tropical Cyclones  

Science Conference Proceedings (OSTI)

Sea surface estimates of local winds, waves, and rain-rate conditions are crucial to complement infrared/visible satellite images in estimating the strength of tropical cyclones (TCs). Satellite measurements at microwave frequencies are thus key ...

Yves Quilfen; Bertrand Chapron; Jean Tournadre

2010-02-01T23:59:59.000Z

300

Tropical Thermostats and Low Cloud Cover  

Science Conference Proceedings (OSTI)

The ability of subtropical stratus low cloud cover to moderate or amplify the tropical response to climate forcing such as increased CO2 is considered. Cloud radiative forcing over the subtropics is parameterized using an empirical relation ...

R. L. Miller

1997-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Rapid Filamentation Zones in Intense Tropical Cyclones  

Science Conference Proceedings (OSTI)

Intense tropical cyclones often possess relatively little convection around their cores. In radar composites, this surrounding region is usually echo-free or contains light stratiform precipitation. While subsidence is typically quite pronounced ...

Christopher M. Rozoff; Wayne H. Schubert; Brian D. McNoldy; James P. Kossin

2006-01-01T23:59:59.000Z

302

Thermodynamic Aspects of Tropical Cyclone Formation  

Science Conference Proceedings (OSTI)

The thermodynamic aspects of tropical cyclone (TC) formation near the center of the wave pouch, a region of approximately closed Lagrangian circulation within the wave critical layer, are examined through diagnoses of a high-resolution numerical ...

Zhuo Wang

2012-08-01T23:59:59.000Z

303

Tropical Cyclone Movement and Surrounding Flow Relationships  

Science Conference Proceedings (OSTI)

This paper presents results of a comprehensive study of the relationship between the movement of tropical cyclones and the large-scale circulation which surrounds them. Cyclones have been stratified by direction and speed of movement, latitude, ...

Johnny C. L. Chan; William M. Gray

1982-10-01T23:59:59.000Z

304

Environmental Control of Tropical Cyclone Intensity  

Science Conference Proceedings (OSTI)

The influence of various environmental factors on tropical cyclone intensity is explored using a simple coupled oceanatmosphere model. It is first demonstrated that this model is capable of accurately replicating the intensity evolution of ...

Kerry Emanuel; Christopher DesAutels; Christopher Holloway; Robert Korty

2004-04-01T23:59:59.000Z

305

NPP Tropical Forest: Barro Colorado, Panama  

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

Barro Colorado, Panama, 1969-1990 PHOTOGRAPH Photograph: Buttressed tree at the Barro Colorado tropical forest site (click on the photo to view a series of images from this...

306

Tropical Convective Variability as 1/f Noise  

Science Conference Proceedings (OSTI)

Evidence is presented that the tropical convective variability behaves as 1/f noise for a 130-day period. This behavior is shown by analyzing the time series of convective available potential energy, which measures the degree of convective ...

Jun-Ichi Yano; Klaus Fraedrich; Richard Blender

2001-09-01T23:59:59.000Z

307

Radiation Budget of the Tropical Intraseasonal Oscillation  

Science Conference Proceedings (OSTI)

This study examines the relationship between precipitation and radiative heating on intraseasonal time scales in the Tropics using collocated top-of-atmosphere (TOA) and surface radiative flux measurements from special field program data [...

Jia-Lin Lin; Brian E. Mapes

2004-08-01T23:59:59.000Z

308

Surface Radiation in the Tropical Pacific  

Science Conference Proceedings (OSTI)

Monthly surface radiative fluxes in the tropical Pacific between January 1970 and February 1978 have been calculated using a radiative transfer package which includes detailed treatments of the molecular and droplet absorptions and of the surface ...

Ming-Dah Chou

1985-01-01T23:59:59.000Z

309

Adjoint Sensitivity and Predictability of Tropical Cyclogenesis  

Science Conference Proceedings (OSTI)

The sensitivity of tropical cyclogenesis and subsequent intensification is explored by applying small perturbations to the initial state in the presence of organized mesoscale convection and synoptic-scale forcing using the adjoint and tangent ...

James D. Doyle; Carolyn A. Reynolds; Clark Amerault; Jonathan Moskaitis

2012-12-01T23:59:59.000Z

310

NPP Tropical Forest: La Selva, Costa Rica  

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

view a series of images from this site). Data Citation Cite this data set as follows: Clark, D. A. 1998. NPP Tropical Forest: La Selva, Costa Rica, 1969-1985. Data set. Available...

311

Lag Relationships Involving Tropical Sea Surface Temperatures  

Science Conference Proceedings (OSTI)

A long historical record (100 years) of monthly sea surface temperature anomalies from the Comprehensive OceanAtmosphere Data Set was used to examined the lag relationships between different locations in the global Tropics. Application of ...

John R. Lanzante

1996-10-01T23:59:59.000Z

312

Midlevel ventilation's constraint on tropical cyclone intensity  

E-Print Network (OSTI)

Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a TC's intensity. An idealized ...

Tang, Brian Hong-An

2010-01-01T23:59:59.000Z

313

Raindrop Size Distribution Measurements in Tropical Cyclones  

Science Conference Proceedings (OSTI)

Characteristics of the raindrop size distribution in seven tropical cyclones have been studied through impact-type disdrometer measurements at three different sites during the 200406 Atlantic hurricane seasons. One of the cyclones has been ...

Ali Tokay; Paul G. Bashor; Emad Habib; Takis Kasparis

2008-05-01T23:59:59.000Z

314

Factors that can influence the onset time of rapid intensification of tropical cyclones  

E-Print Network (OSTI)

The maximum intensity of tropical cyclones in axisymmetricsea interaction theory for tropical cyclones. part i: Steady1995), Sensitivity of tropical cyclones to surface exchange

Bu, Yizhe

2012-01-01T23:59:59.000Z

315

Extreme Precipitation Events in the Western United States Related to Tropical Forcing  

Science Conference Proceedings (OSTI)

Three-day accumulations of precipitation for 2.5 long 2.0 lat areas along the west coast of the United States are used to rank precipitation events. Extreme precipitation events (those above the 90th percentile) occur at all phases of the El ...

R. W. Higgins; J-K. E. Schemm; W. Shi; A. Leetmaa

2000-02-01T23:59:59.000Z

316

Dynamical Tropical Cyclone 96- and 120-h Track Forecast Errors in the Western North Pacific  

Science Conference Proceedings (OSTI)

The Joint Typhoon Warning Center has been issuing 96- and 120-h track forecasts since May 2003. It uses four dynamical models that provide guidance at these forecast intervals and relies heavily on a consensus of these four models in producing ...

Ryan M. Kehoe; Mark A. Boothe; Russell L. Elsberry

2007-06-01T23:59:59.000Z

317

An Atmospheric Radiation and Cloud Station in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

The interaction of clouds and radiation is a particularly difficult issue in the study of climate change. Clouds have a large impact on the earth's radiation budget but the range of spatial and temporal scales and the complexity of the physical ...

J. H. Mather; T. P. Ackerman; W. E. Clements; F. J. Barnes; M. D. Ivey; L. D. Hatfield; R. M. Reynolds

1998-04-01T23:59:59.000Z

318

Low-Frequency Controls on the Thresholds of Sea Surface Temperature over the Western Tropical Pacific  

Science Conference Proceedings (OSTI)

In this study, the Florida State University Coupled Global Spectral Model (FSUCGSM) is utilized to examine the possible regulation of the warm pool SST and its contributors. The model is run for 1 yr to obtain the residue-free time evolution of ...

Nihat Cubukcu; T. N. Krishnamurti

2002-07-01T23:59:59.000Z

319

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

E-Print Network (OSTI)

The objective of this study is to investigate the effect of Atlantic meridional overturning circulation (AMOC) changes on tropical coupled ocean-atmosphere system via oceanic and atmospheric processes. A suite of numerical simulations have been conducted and the results show that both oceanic and atmospheric circulation changes induced by AMOC changes can have a profound impact on tropical sea surface temperature (SST) and sea surface salinity (SSS) conditions, but their dominance varies in different parts of the tropical oceans. The oceanic process has a dominant control on SST and SSS response to AMOC changes in the South Tropical Atlantic, while the atmospheric teleconnection is mainly responsible for SST and SSS changes over the North Tropical Atlantic and Pacific Oceans during the period of reduced AMOC. The finding has significant implication for the interpretation of the paleotemperature reconstructions over the southern Caribbean and the western Tropical Atlantic regions during the Younger Dryas. It suggests that the strong spatial inhomogeneity of the SST change revealed by the proxy records in these regions may be attributed to the competing oceanic and atmospheric processes that dominate the SST response. Similar mechanisms may also explain the reconstructed paleo-salinity change in the tropical Atlantic, which shows a basin-wide increase in SSS during the Younger Dryas, according to recent paleo climate studies. Finally, we show that atmospheric teleconnection induced by the surface cooling of the North Atlantic and the North Pacific in response to a weakened AMOC, is a leading physical mechanism that dictates the behavior of El Nino/Southern Oscillation (ENSO) response to AMOC changes. However, depending on its origin, the atmospheric teleconnection can affect ENSO variability in different ways. The atmospheric process associated with the North Atlantic cooling tends to enhance El Nino occurrence with a deepened mean thermocline depth in the eastern Pacific, whereas the atmospheric process associated with the North Pacific cooling tends to produce more La Nina events with a reduced mean thermocline depth in the eastern Pacific. Preliminary analysis suggests that the change in ENSO characteristics is associated with the change in internal atmospheric variability caused by the surface cooling in the North Atlantic and North Pacific. Complex nature of the underlying dynamics concerning the effect of the AMOC on ENSO calls for further investigation into this problem.

Wan, Xiuquan

2009-08-01T23:59:59.000Z

320

Surface Energy Balance System (SEBS) Handbook  

Science Conference Proceedings (OSTI)

A Surface Energy Balance System (SEBS) has been installed collocated with each deployed ECOR system at the Southern Great Plains (SGP), North Slope of Alaska (NSA), Tropical Western Pacific (TWP), ARM Mobile Facility 1 (AMF1), and ARM Mobile Facility 2 (AMF2). The surface energy balance system consists of upwelling and downwelling solar and infrared radiometers within one net radiometer, a wetness sensor, and soil measurements. The SEBS measurements allow the comparison of ECOR sensible and latent heat fluxes with the energy balance determined from the SEBS and provide information on wetting of the sensors for data quality purposes.

Cook, DR

2011-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

WESTERN WATER ASSESSMENT WHITE PAPER  

E-Print Network (OSTI)

WESTERN WATER ASSESSMENT WHITE PAPER Socioeconomic Impacts and Adaptation Strategies: Assessing://www.socioeconimpacts.org and is described in greater detail in a companion white paper, "Socioeconomic Impacts and Adaptation Strategies: Assessing Research on Drought, Climate Change and Recreation". This white paper discusses literature

Neff, Jason

322

Tropical Cyclogenesis Factors in a Warming Climate  

E-Print Network (OSTI)

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

Cathey, Stephen Christopher

2011-12-01T23:59:59.000Z

323

NREL: Transmission Grid Integration - Western Wind Dataset  

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

Western Wind Dataset Western Wind Dataset Here you will find information about the Western Wind Dataset, including the methodology used to develop the dataset, the accuracy of the data, site selection, and power output. Alert! Important Note Obtain the Western Wind Dataset This dataset was originally created for the Western Wind and Solar Integration Study. These data are modeled data and not actual measured data. Learn more about the datasets including the similarities and differences between the Eastern and Western datasets and the differences from the NREL state wind maps. Methodology 3TIER created the Western Dataset with oversight and assistance from NREL. Numerical Weather Prediction (NWP) models were used to essentially recreate the historical weather for the western U.S. for 2004, 2005, and 2006. The

324

Western NY Energy LLC | Open Energy Information  

Open Energy Info (EERE)

search Name Western NY Energy LLC Place Mount Morris, New York Zip 14510 Product Bioethanol producer. References Western NY Energy LLC1 LinkedIn Connections CrunchBase...

325

2013 Annual Planning Summary for the Western Area Power Administration...  

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

Western Area Power Administration 2013 Annual Planning Summary for the Western Area Power Administration 2013 Annual Planning Summary for the Western Area Power Administration The...

326

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,

327

The Influence of Tropical heating Displacements on the Extratropical Climate  

Science Conference Proceedings (OSTI)

The hypothesis is advanced that a latitudinal shift in the tropical convective heating pattern can significantly alter temperatures in the extratropics. Results of a simplified GCM show that the shift of a prescribed tropical heating toward the ...

Arthur Y. Hou

1993-11-01T23:59:59.000Z

328

A Global Climatology of Baroclinically Influenced Tropical Cyclogenesis  

Science Conference Proceedings (OSTI)

Tropical cyclogenesis is generally considered to occur in regions devoid of baroclinic structures; however, an appreciable number of tropical cyclones (TCs) form in baroclinic environments each year. A global climatology of these baroclinically ...

Ron McTaggart-Cowan; Thomas J. Galarneau Jr.; Lance F. Bosart; Richard W. Moore; Olivia Martius

2013-06-01T23:59:59.000Z

329

An Algorithm for Tracking Eyes of Tropical Cyclones  

Science Conference Proceedings (OSTI)

A tropical cyclone (TC) eye tracking (TCET) algorithm is presented in this study to objectively identify and track the eye and center of a tropical cyclone using radar reflectivity data. Twelve typhoon cases were studied for evaluating the TCET ...

Pao-Liang Chang; Ben Jong-Dao Jou; Jian Zhang

2009-02-01T23:59:59.000Z

330

On the Origin of the Tropical Intraseasonal Oscillation  

Science Conference Proceedings (OSTI)

This study provides an explanation for the origin of the tropical intraseasonal (4050 day) oscillation (TIO) based on a simple generalization of Gill's linear analytic model for tropical large-scale heat-induced circulation. The solution, which ...

Winston C. Chao

1987-08-01T23:59:59.000Z

331

Comments on Reexamination of Tropical Cyclone WindPressure Relationship  

Science Conference Proceedings (OSTI)

In their study on the windpressure relationship (WPR) that exists in tropical cyclones, Knaff and Zehr presented results of the use of the Dvorak Atlantic WPR for estimating central pressure and maximum wind speed of tropical cyclones. These ...

Shyamnath Veerasamy

2008-08-01T23:59:59.000Z

332

Sensitivity of Tropical Tropospheric Temperature to Sea Surface Temperature Forcing  

Science Conference Proceedings (OSTI)

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

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

2003-05-01T23:59:59.000Z

333

A Technique for Combining Global Tropical Cyclone Best Track Data  

Science Conference Proceedings (OSTI)

Best track data generally consist of the positions and intensities during the life cycle of a tropical cyclone. Despite the widespread interest in the distribution, frequency, and intensity of tropical cyclones worldwide, no publicly available ...

Michael C. Kruk; Kenneth R. Knapp; David H. Levinson

2010-04-01T23:59:59.000Z

334

On the size distribution of Atlantic tropical cyclones  

E-Print Network (OSTI)

The size of a tropical cyclone is known to vary considerably across storms, though little is understood about the environmental and internal factors that modulate it. Making use of newly available extended tropical cyclone ...

Emanuel, Kerry Andrew

335

Structure of Highly Sheared Tropical Storm Chantal during CAMEX-4  

Science Conference Proceedings (OSTI)

Tropical Storm Chantal during August 2001 was a storm that failed to intensify over the few days prior to making landfall on the Yucatan Peninsula. An observational study of Tropical Storm Chantal is presented using a diverse dataset including ...

G. M. Heymsfield; Joanne Simpson; J. Halverson; L. Tian; E. Ritchie; J. Molinari

2006-01-01T23:59:59.000Z

336

A Model for Transport across the Tropical Tropopause  

Science Conference Proceedings (OSTI)

A model of convective and advective transport across the tropical tropopause is described. In this model overshooting convective turrets inject dehydrated tropospheric air into a tropical tropopause layer (TTL) bounded approximately by the 50- ...

Steven C. Sherwood; Andrew E. Dessler

2001-04-01T23:59:59.000Z

337

TRMM Radar Observations of Shallow Precipitation over the Tropical Oceans  

Science Conference Proceedings (OSTI)

Observations from the precipitation radar aboard the Tropical Rainfall Measuring Mission satellite provide the first opportunity to map vertical structure properties of rain over the entire Tropics and subtropics. Storm height histograms reveal a ...

David A. Short; Kenji Nakamura

2000-12-01T23:59:59.000Z

338

Predicting Atlantic Basin Seasonal Tropical Cyclone Activity by 1 August  

Science Conference Proceedings (OSTI)

More than 90% of all seasonal Atlantic tropical cyclone activity typically occurs after 1 August. A strong predictive potential exists that allows seasonal forecasts of Atlantic basin tropical cyclone activity to be issued by 1 August, prior to ...

William M. Gray; Christopher W. Landsea; Paul W. Mielke Jr.; Kenneth J. Berry

1993-03-01T23:59:59.000Z

339

Physical Characterization of Tropical Oceanic Convection Observed in KWAJEX  

Science Conference Proceedings (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

340

Aerosol Effects on Microstructure and Intensity of Tropical Cyclones  

Science Conference Proceedings (OSTI)

Improving the forecasts of the intensity of tropical cyclones (TCs) remains a major challenge. One possibility for improvement is consideration of the effects that aerosols have on tropical clouds and cyclones. The authors have been pursuing this under ...

Daniel Rosenfeld; William L. Woodley; Alexander Khain; William R. Cotton; Gustavo Carri; Isaac Ginis; Joseph H. Golden

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Sensitivity of Tropical Cyclone Rainbands to Ice-Phase Microphysics  

Science Conference Proceedings (OSTI)

A high-resolution tropical cyclone model with explicit cloud microphysics has been used to investigate the dynamics and energetics of tropical cyclone rainbands. As a first step, the model rainbands have been qualitatively compared with observed ...

Charmaine N. Franklin; Greg J. Holland; Peter T. May

2005-08-01T23:59:59.000Z

342

The Tropical Convective Spectrum. Part I: Archetypal Vertical Structures  

Science Conference Proceedings (OSTI)

A taxonomy of tropical convective and stratiform vertical structures is constructed through cluster analysis of 3 yr of Tropical Rainfall Measuring Mission (TRMM) warm-season (surface temperature greater than 10C) precipitation radar (PR) ...

Dennis J. Boccippio; Walter A. Petersen; Daniel J. Cecil

2005-07-01T23:59:59.000Z

343

Lagrangian Study of Tropical Instability Vortices in the Atlantic  

Science Conference Proceedings (OSTI)

Tropical instability waves and tropical instability vortices (TIVs) exert major controls on ocean dynamics, thermodynamics, and biology on intraseasonal to seasonal time scales. To understand the fundamental mechanisms at play, a Lagrangian ...

Pierre Dutrieux; Christophe E. Menkes; Jerome Vialard; Pierre Flament; Bruno Blanke

2008-02-01T23:59:59.000Z

344

Tropical cyclone preparedness and response : opportunities for operations research  

E-Print Network (OSTI)

This thesis explores how operations research methods can be applied in the emergency response community by looking at two recent tropical storm disasters; tropical cyclone Yemyin in Pakistan, June 2007 and super typhoon ...

Murphy, Maurice D

2008-01-01T23:59:59.000Z

345

Choosing a Boundary Layer Parameterization for Tropical Cyclone Modeling  

Science Conference Proceedings (OSTI)

The boundary layer in a tropical cyclone is in some respects unlike that elsewhere in the atmosphere. It is therefore necessary to evaluate boundary layer parameterizations for their suitability for use in tropical cyclone simulation. Previous ...

Jeffrey D. Kepert

2012-05-01T23:59:59.000Z

346

Radar Signatures of Tropical Cyclone Tornadoes in Central North Carolina  

Science Conference Proceedings (OSTI)

During the tropical cyclone season of 2004, there were four tropical cyclones that spawned tornadoes in central North Carolina: Frances, Gaston, Ivan, and Jeanne. This study examines the environmental characteristics and radar signatures from ...

Douglas Schneider; Scott Sharp

2007-04-01T23:59:59.000Z

347

Regional Variability in Tropical Convection: Observations from TRMM  

Science Conference Proceedings (OSTI)

Observation of the vertical profile of precipitation over the global Tropics is a key objective of the Tropical Rainfall Measuring Mission (TRMM) because this information is central to obtaining vertical profiles of latent heating. This study ...

Walter A. Petersen; Steven A. Rutledge

2001-09-01T23:59:59.000Z

348

An Alternative Tropical Cyclone Intensity Forecast Verification Technique  

Science Conference Proceedings (OSTI)

The National Hurricane Center (NHC) does not verify official or model forecasts if those forecasts call for a tropical cyclone to dissipate or if the real tropical cyclone dissipates. A new technique in which these forecasts are included in a ...

Sim D. Aberson

2008-12-01T23:59:59.000Z

349

Improvements to the Operational Tropical Cyclone Wind Speed Probability Model  

Science Conference Proceedings (OSTI)

The National Hurricane Center Hurricane Probability Program, which estimated the probability of a tropical cyclone passing within a specific distance of a selected set of coastal stations, was replaced by the more general Tropical Cyclone Surface ...

Mark DeMaria; John A. Knaff; Michael J. Brennan; Daniel Brown; Richard D. Knabb; Robert T. DeMaria; Andrea Schumacher; Christopher A. Lauer; David P. Roberts; Charles R. Sampson; Pablo Santos; David Sharp; Katherine A. Winters

2013-06-01T23:59:59.000Z

350

A Bayesian Forecast Model of Australian Region Tropical Cyclone Formation  

Science Conference Proceedings (OSTI)

A new and potentially skillful seasonal forecast model of tropical cyclone formation [tropical cyclogenesis (TCG)] is developed for the Australian region. The model is based on Poisson regression using the Bayesian approach. Predictor combinations ...

Angelika Werner; Neil J. Holbrook

2011-12-01T23:59:59.000Z

351

Estimating Rainfall in the Tropics Using the Fractional Time Raining  

Science Conference Proceedings (OSTI)

The relationship between the fractional time raining and tropical rainfall amount is investigated using raingage data and a point process model of tropical rainfall. Both the strength and the nature of the relationship are dependent upon the ...

Mark L. Morrissey; Witold F. Krajewski; Michael J. McPhaden

1994-03-01T23:59:59.000Z

352

On the Wave Spectrum Generated by Tropical Heating  

Science Conference Proceedings (OSTI)

Convective heating profiles are computed from one month of rainfall rate and cloud-top height measurements using global Tropical Rainfall Measuring Mission and infrared cloud-top products. Estimates of the tropical wave response to this heating ...

David A. Ortland; M. Joan Alexander; Alison W. Grimsdell

2011-09-01T23:59:59.000Z

353

Intraseasonal Behavior of Clouds, Temperature, and Motion in the Tropics  

Science Conference Proceedings (OSTI)

The spectral character of tropical convection is investigated in an 11-yr record of outgoing longwave radiation from the Advanced Very High Resolution Radiometer to identify interaction with the tropical circulation. Along the equator in the ...

Murry L. Salby; Harry H. Hendon

1994-08-01T23:59:59.000Z

354

NPP Tropical Forest: Luquillo, Puerto Rico  

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

Luquillo, Puerto Rico, 1963-1994 Luquillo, Puerto Rico, 1963-1994 Data Citation Cite this data set as follows: Lugo, A. E., F. Scatena, and C. F. Jordan. 1999. NPP Tropical Forest: Luquillo, Puerto Rico, 1963-1994. 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 Productivity of lower montane tropical forest has been determined at various study sites within the Luquillo Experimental Forest from 1963 to the present. The Luquillo Experimental Forest is situated in the Luquillo Mountains of eastern Puerto Rico (18.32 N 65.82 W), about 35 km east-southeast of San Juan, and operates under the auspices of the International Institute of Tropical Forestry, Rio Pedras, Puerto Rico. Its total area is about 11,000

355

Tropical Forest Trust | Open Energy Information  

Open Energy Info (EERE)

Tropical Forest Trust Tropical Forest Trust Name Tropical Forest Trust Address The Forest Trust 721 NW Ninth Avenue, Suite 195 Place Portland, Oregon Zip 97209 Region Pacific Northwest Area Year founded 1999 Website http://www.tft-forests.org/ Coordinates 45.5284073°, -122.6803494° 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":45.5284073,"lon":-122.6803494,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

356

Tropical Africa: Total Forest Biomass (By Country)  

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

Tropical Africa: Total Forest Biomass (By Country) Tropical Africa: Total Forest Biomass (By Country) image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNL/CDIAC-92, NDP-055. Carbon Dioxide Information Analysis Center, U.S. Department of Energy, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A. More Maps Calculated Actual Aboveground Live Biomass in Forests (1980) Maximum Potential Biomass Density Land Use (1980) Area of Closed Forests (By Country) Mean Biomass of Closed Forests (By County) Area of Open Forests (By Country) Mean Biomass of Open Forests (By County) Percent Forest Cover (By Country) Population Density - 1990 (By Administrative Unit) Population Density - 1980 (By Administrative Unit) Population Density - 1970 (By Administrative Unit)

357

Western Renewable Energy Zones Initiative A joint initiative of the Western Governors'Association and U.S.Department  

E-Print Network (OSTI)

#12;Western Renewable Energy Zones Initiative A joint initiative of the Western Governors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Transmission and Renewable Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 The Path Toward Western Renewable Energy Zones . . . . . . . . . . . . . . . . .5 Renewable

358

Simulations of the Extratropical Transition of Tropical Cyclones: Phasing between the Upper-Level Trough and Tropical Cyclones  

Science Conference Proceedings (OSTI)

Whether the tropical cyclone remnants will become a significant extratropical cyclone during the reintensification stage of extratropical transition is a complex problem because of the uncertainty in the tropical cyclone, the midlatitude ...

Elizabeth A. Ritchie; Russell L. Elsberry

2007-03-01T23:59:59.000Z

359

Electrically Active Convection in Tropical Easterly Waves and Implications for Tropical Cyclogenesis in the Atlantic and East Pacific  

Science Conference Proceedings (OSTI)

In this study, the authors investigated the characteristics of tropical easterly wave convection and the possible implications of convective structure on tropical cyclogenesis and intensification over the Atlantic Ocean and the east Pacific Ocean. ...

Kenneth D. Leppert II; Walter A. Petersen; Daniel J. Cecil

2013-02-01T23:59:59.000Z

360

Simulated Relationships between Sea Surface Temperatures and Tropical Convection in Climate Models and Their Implications for Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

The impact of enhanced atmospheric CO2 concentrations on tropical convection and sea surface temperatures (SSTs) over the global tropics is assessed using five fully coupled atmosphericoceanic general circulation models (AOGCMs). Relationships ...

Jenni L. Evans; Jeffrey J. Waters

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Analysis of the Tropical Tropopause Layer Cirrus in CALIPSO and MLS Data - A Water Perspective  

E-Print Network (OSTI)

Two mechanisms appear to be primarily responsible for the formation of cirrus clouds in Tropical Tropopause Layer (TTL): detrainment from deep convective anvils and in situ initiation. Here we propose to identify TTL cirrus clouds by analyzing water content measurements from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) and Aura Microwave Limb Sounder (MLS). Using ice water content (IWC) and water vapor (H2O) abundances we identify TTL cirrus clouds that contain too much ice to have been formed in situ and therefore must be of convective origin. We use two methods to infer amounts of water vapor available for in situ formation. Clouds with IWC greater than this threshold are categorized as being of convective origin; clouds with IWC below the threshold are ambiguous they could either form from in situ or still be of convective origin. Applying the thresholds from December 2008 to November 2009, we found that at least 19.2% of tropical cirrus were definitively of convective origin at the tropopause (375 K) during boreal winter. At each level, we found three maxima in the occurrence of convective cirrus: western Pacific, equatorial Africa, and South America. Averaged over the entire tropics (30oS to 30oN), we found convective cirrus occurs more frequently in boreal winter and less frequently in boreal summer, basically following the a decreasing trend from DJF, MAM, SON, to JJA. During boreal summer, we found that only 4.6% of tropical cirrus come from convection. Sensitivity tests show that the thresholds derived at 390 K have the largest uncertainty. At lower levels, especially 375 K, our thresholds are robust.

Wang, Tao

2011-05-01T23:59:59.000Z

362

Western Cooling Efficiency Center | Open Energy Information  

Open Energy Info (EERE)

Efficiency Center Efficiency Center Jump to: navigation, search Name Western Cooling Efficiency Center Place Davis, CA Website http://http://wcec.ucdavis.edu References Western Cooling Efficiency Center [1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Test & Evaluation Partner Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections Western Cooling Efficiency Center is a research institution located in Davis, CA, at the University of California at Davis (UC Davis). References ↑ "Western Cooling Efficiency Center" Retrieved from "http://en.openei.org/w/index.php?title=Western_Cooling_Efficiency_Center&oldid=382319" Categories: Clean Energy Organizations

363

Effect of Tropical Waves on the Tropical Tropopause Transition Layer Upwelling  

Science Conference Proceedings (OSTI)

An initial-value problem is employed with a GCM to investigate the role of the convectively driven Rossby and Kelvin waves for tropopause transition layer (TTL) upwelling in the tropics. The convective heating is mimicked with a prescribed ...

Jung-Hee Ryu; Sukyoung Lee

2010-10-01T23:59:59.000Z

364

The residual mean circulation in the tropical tropopause layer driven by tropical waves  

Science Conference Proceedings (OSTI)

We use latent heating estimates derived from rainfall observations to construct model experiments that isolate equatorial waves forced by tropical convection from mid-latitude synoptic-scale waves. These experiments are used to demonstrate that ...

David A. Ortland; M. Joan Alexander

365

Western Riverside Council of Governments - Home Energy Renovation...  

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

Western Riverside Council of Governments - Home Energy Renovation Opportunity (HERO) Financing Program (California) Western Riverside Council of Governments - Home Energy...

366

Canada-Saskatchewan Western Economic Partnership Agreement (Saskatchew...  

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

Canada-Saskatchewan Western Economic Partnership Agreement (Saskatchewan, Canada) Canada-Saskatchewan Western Economic Partnership Agreement (Saskatchewan, Canada) Eligibility...

367

Recent Advances in Tropical Climate Prediction  

Science Conference Proceedings (OSTI)

A review is given of the current status of long-range forecasting in the low latitudes. Promising leads have developed over the past five years in the seasonal forecasting for certain target regions of the Tropics. Various approaches are of ...

Stefan Hastenrath

1995-06-01T23:59:59.000Z

368

Radiative Forcing of Simulated Tropical Cloud Clusters  

Science Conference Proceedings (OSTI)

A number of field experiments and subsequent studies in the 1970s and 1980s have led to the belief that radiative processes play a more significant role in the evolution of tropical mesoscale convective systems (MCSS) than was once thought. In ...

Rosemary Auld Miller; William M. Frank

1993-02-01T23:59:59.000Z

369

Nonlinear Response to Anomalous Tropical Forcing  

Science Conference Proceedings (OSTI)

We have investigated the nonlinear steady-state response of a barotropic model to an estimate of the observed anomalous tropical divergence forcing for the El Nio winter of 1982/83. The 400 mb climatological flow was made a forced solution of ...

R. J. Haarsma; J. D. Opsteegh

1989-11-01T23:59:59.000Z

370

Tropical Cyclone Intensity and Sea Surface Temperature  

Science Conference Proceedings (OSTI)

It is hypothesized that the effect of the SST on the intensity of tropical cyclones can be separated into two distinct contributions: one from the large-scale SST field that is in equilibrium with the atmosphere, and another one from a local ...

Lars R. Schade

2000-09-01T23:59:59.000Z

371

Tropical Cyclone Contribution to Rainfall over Australia  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) rainfall over the Australian continent is studied using observations from 41 TC seasons 1969/70 to 2009/10. A total of 318 storms, whose centers either crossed the coastline or were located within 500?km of the coast, are ...

Richard A. Dare; Noel E. Davidson; John L. McBride

2012-11-01T23:59:59.000Z

372

Tropical Cyclone Tornadoes, 19502007  

Science Conference Proceedings (OSTI)

An expanded climatology of U.S. tropical cyclone (TC) tornadoes covering the period 19502007 is presented. A major climatology published in 1991 included data on 626 TC tornadoes. Since then, almost 1200 more TC tornado records have been ...

Lori A. Schultz; Daniel J. Cecil

2009-10-01T23:59:59.000Z

373

The Interannual Variability of Tropical Cyclones  

Science Conference Proceedings (OSTI)

This paper examines the interannual variability of tropical cyclones in each of the earths cyclone basins using data from 1985 to 2003. The data are first analyzed using a Monte Carlo technique to investigate the long-standing myth that the ...

William M. Frank; George S. Young

2007-10-01T23:59:59.000Z

374

Heat Budget of Tropical Ocean and Atmosphere  

Science Conference Proceedings (OSTI)

Heat budget estimates for the global tropics are derived from recent calculations of the oceanic heat budget and satellite measurements of net radiation at the top of the atmosphere. Annual mean heat export from the zone 30N30S amounts to 101 ...

Stefan Hastenrath

1980-02-01T23:59:59.000Z

375

Rapid Intensification of a Sheared Tropical Storm  

Science Conference Proceedings (OSTI)

A weak tropical storm (Gabrielle in 2001) experienced a 22-hPa pressure fall in less than 3 h in the presence of 13 m s?1 ambient vertical wind shear. A convective cell developed downshear left of the center and moved cyclonically and inward to ...

John Molinari; David Vollaro

2010-10-01T23:59:59.000Z

376

EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION Counting Atlantic Tropical  

E-Print Network (OSTI)

Climate variability and any resulting change in the characteristics of tropical cyclones (tropical storms, subtropical storms, and hurricanes) have become topics of great interest and research within the past 2 years [International Workshop on Tropical Cyclones, 2006]. An emerging focus is how the frequency of tropical cyclones has changed over time and whether any changes could be linked to anthropogenic global warming. The Atlantic is the one tropical cyclone basin that has quantitative records back to the midnineteenth century for the whole basin (i.e., North Atlantic Ocean, Caribbean Sea, and Gulf of Mexico) [Jarvinen et al., 1984; Landsea et al.,

Cyclones Back To

2007-01-01T23:59:59.000Z

377

X:\ARM_19~1\P259-271.WPD  

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

Figure. 1. Conceptual relationships of studies pre- Figure. 1. Conceptual relationships of studies pre- sented in this report. Interaction of Clouds, Radiation, and the Tropical Warm Pool Sea Surface Temperatures N. Schneider, G. J. Zhang, T. P. Barnett, and V. Ramanathan Scripps Institution of Oceanography La Jolla, California U. Lohmann, and E. Roeckner Max-Planck-Institut für Meteorologie Hamburg, Germany Introduction The primary focus of this study is the Tropical Western Pacific (TWP). In this study, we combine in-situ observa- tions (Tropical Ocean Global Atmosphere [TOGA]-Coupled Ocean Atmosphere Response Experiment [COARE] and Central Equatorial Pacific Experiment [CEPEX]) with satellite cloud data. Our objectives are fourfold: Use surface, aircraft and satellite observations to relate radiation fluxes within the atmosphere and at the surface

378

1  

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

Convection Characteristics at the Tropical Convection Characteristics at the Tropical Western Pacific Darwin Site Between Observation and Global Climate Models Simulations G.J. Zhang Center for Atmospheric Sciences Scripps Institution of Oceanography La Jolla, California Introduction One of the scientific objectives of the ARM Tropical Warm Pool International Cloud Experiment (TWP- ICE) planned for early 2006 at Darwin, Australia, is to describe convection characteristics and its interaction with the large-scale fields. In view of the short duration of the experiment, it is important to determine the long-term statistics of convection and its associated clouds from the observations and global climate models (GCMs) so as to put the experiment results in proper climate perspective. For this

379

1  

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

and Improved Data Logging and Collection and Improved Data Logging and Collection System for Atmospheric Radiation Measurement Climate Research Facility, Tropical Western Pacific, and North Slope of Alaska Sky Radiation, Ground Radiation, and MET Systems M.T. Ritsche, D.J. Holdridge Environmental Research Division, Argonne National Laboratory Argonne, IL R. Pearson Australian Bureau of Meteorology Darwin, NT Australia Background Aging systems and technological advances mandated changes to the data collection systems at the Atmospheric Radiation Measurement (ARM) Program's Tropical Western Pacific (TWP) and North Slope of Alaska (NSA) ARM Climate Research Facility (ACRF) sites. Key reasons for the upgrade include the following: * Achieve consistency across all ACRF sites for easy data use and operational maintenance.

380

The multiple vortex nature of tropical cyclogenesis  

E-Print Network (OSTI)

This thesis contains an observational analysis of the genesis of Tropical Storm Allison (2001). Using a paradigm of tropical cyclone formation as the superposition of potential vorticity (PV) anomalies, the importance of different scales of PV merger to various aspects of Allison?s formation is discussed. While only the case of Allison is discussed in great detail, other studies have also documented PV superposition on various scales, and superposition could be important for most tropical cyclones. Preceding Allison?s genesis, PV superposition on the large scale destabilized the atmosphere and increased low-level cyclonic vorticity. This presented a more favorable environment for the formation of MCV-type PV anomalies and smaller, surface-based, meso-?-scale vortices. Although these vortices eventually merged to form a more concentrated vortex with stronger surface pressure gradients, the merger happened well after landfall of Allison and no strengthening ensued. The unstable, vorticity-rich environment was also favorable for the development of even smaller, meso-?-scale vortices that accompanied deep convective cells within one of Allison?s meso-?-scale vortices. The observations herein suggest that the meso-?- scale convective cells and vortices are the respective source of PV production and building blocks for the meso-?-scale vortices. Finally, this thesis discusses issues related to the multiple vortex nature of tropical cyclone formation. For instance, the tracking of developing tropical cyclones is greatly complicated by the presence of multiple vortices. For these cases, the paradigm of a single cyclone center is inappropriate and alternative tracking methods are introduced.

Sippel, Jason Allen

2004-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

International Crops Research Institute for the Semi Arid Tropics | Open  

Open Energy Info (EERE)

Crops Research Institute for the Semi Arid Tropics Crops Research Institute for the Semi Arid Tropics Jump to: navigation, search Name International Crops Research Institute for the Semi-Arid Tropics Place India Sector Biofuels Product Biofuels ( Academic / Research foundation ) References International Crops Research Institute for the Semi-Arid Tropics[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. International Crops Research Institute for the Semi-Arid Tropics is a company located in India . References ↑ "International Crops Research Institute for the Semi-Arid Tropics" Retrieved from "http://en.openei.org/w/index.php?title=International_Crops_Research_Institute_for_the_Semi_Arid_Tropics&oldid=347036

382

The Implications of Tropical Rossby Waves for Tropical Tropopause Cirrus Formation and for the Equatorial Upwelling of the BrewerDobson Circulation  

Science Conference Proceedings (OSTI)

This study puts forward a mechanism for the observed upwelling in the tropical upper troposphere and lower stratosphere. In this hypothesis, the tropical upwelling is driven by momentum transport by Rossby waves that are generated by tropical ...

Matthew T. Boehm; Sukyoung Lee

2003-01-01T23:59:59.000Z

383

Case Study - Western Electricity Coordinating Council  

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

A Smart Grid Strategy for Assuring Reliability of the Western Grid A Smart Grid Strategy for Assuring Reliability of the Western Grid The Western Electricity Coordinating Council (WECC) is the Regional Entity responsible for coordinating and promoting bulk electric system reliability in the Western Interconnection. WECC and its members manage the operation and planning of the vast interconnected transmission system connecting generators and loads across almost 1.8 million square miles of territory. The Western Interconnection Synchrophasor Program (WISP), led by WECC and involving 18 partners, is an initiative to modernize operation of the transmission system in the Western Interconnection, increasing reliability and system performance, and enabling greater use of renewable resources such as solar, hydro, and wind.

384

Relationships between tropical cyclone intensity and satellite based indicators of inner core convection: 85 GHz ice scattering signature and lightning  

E-Print Network (OSTI)

A key component in the maintenance and intensification of tropical cyclones is the transverse circulation, which transports mass and momentum and provides latent heat release via inner core convective updrafts. This study examines these updrafts indirectly, using satellite-borne observations of the scattering of upwelling microwave radiation by precipitation sized ice and satellite-borne observations of lightning. The observations are then compared to tropical cyclone intensity and the resulting relationships are assessed. The size of ice particles is tied to updraft strength, in that stronger updrafts produce more supercooled liquid water, leading to larger graupel through riming. Large graupel and a high supercooled liquid water content are necessary ingredients for charge separation, leading to lightning. Various parameters derived from the inner core ice scattering signature are computed for regions encircling hurricanes and typhoons, and observations of lightning activity or inactivity are analyzed. As expected, increasing ice scattering signature is found to correspond to increasing tropical cyclone intensity. However, the highest correlations do not involve indicators of convective intensity, as they were expected to. Instead, the highest correlations with tropical cyclone intensity result from the ice scattering signature parameters most closely associated with the areal extent of at least moderate precipitation rates. Correlations tend to be of the same sign for both present cyclone intensity at the time of the satellite overpass and subsequent intensity change. Correlations are higher for future cyclone intensity than for either of these. These correlations are much higher for the Atlantic and the Eastern North Pacific than for the Western North Pacific. It is hypothesized that processes involved with the most intense or rapidly intensifying tropical cyclones (more commonly found in the Western North Pacific) are responsible for these differences. The lightning observations are more limited than the microwave observations, because the short amount of time in which lightning can be detected may not adequately represent a particular storms electrical activity. These observations reveal no clear relationships between electrical activity and tropical cyclone intensity. In the examination of case studies, the paradoxical situation of much greater lightning activity in rainbands than in eyewalls is noted.

Cecil, Daniel Joseph

1997-01-01T23:59:59.000Z

385

Western Electricity Coordinating Council | Open Energy Information  

Open Energy Info (EERE)

Council Jump to: navigation, search Name Western Electricity Coordinating Council Place Salt Lake City, UT References SGIC1 No information has been entered for this organization....

386

Advanced Manufacturing Office: Western Industrial Energy Efficiency...  

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

Send a link to Advanced Manufacturing Office: Western Industrial Energy Efficiency & Combined Heat and Power Regional Dialogue Meeting to someone by E-mail Share Advanced...

387

Western Area Power Administration, Desert Southwest Region  

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

5 Western Area Power Administration, Desert Southwest Region Liberty-Parker 2 230-kV Transmission Line Optical Power Ground Wire Repairs - Continuation Sheet Project Description...

388

Sierra Nevada Region - Western Area Power Administration  

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

Contact Us Customers Environmental Review (NEPA) Power Marketing Power Operations The Sierra Nevada Region is one of five offices in the Western Area Power Administration. SN...

389

Western Turbine | Open Energy Information  

Open Energy Info (EERE)

Turbine Turbine Jump to: navigation, search Name Western Turbine Place Aurora, Colorado Zip 80011 Sector Wind energy Product Wind Turbine Installation and Maintainance. Coordinates 39.325162°, -79.54975° 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":39.325162,"lon":-79.54975,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

390

Finding Tropical Cyclones on a Cloud Computing Cluster: Using Parallel Virtualization for Large-Scale Climate Simulation Analysis  

E-Print Network (OSTI)

Chang. Changes in Tropical Cyclone Number, Duration, andSimulation of Future Tropical Cyclone Statistics in a High-Finding Tropical Cyclones on a Cloud Computing Cluster:

Hasenkamp, Daren

2011-01-01T23:59:59.000Z

391

The Teleconnection between the Western Indian and the Western Pacific Oceans  

Science Conference Proceedings (OSTI)

Shown in this study are a teleconnection pattern relating outgoing longwave radiation (OLR) anomalies over the western Pacific Ocean and sea surface temperature anomalies (SSTAs) over the western Indian Ocean over two seasons [SeptemberOctober...

Vasubandhu Misra

2004-02-01T23:59:59.000Z

392

NPP Tropical Forest: Khao Chong, Thailand  

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

Khao Chong, Thailand, 1962-1965 Khao Chong, Thailand, 1962-1965 [PHOTOGRAPH] Photograph: Eye-level view of forest interior at Khao Chong (click on the photo to view a series of images from this site) Data Citation Cite this data set as follows: Kira, T. 1998. NPP Tropical Forest: Khao Chong, Thailand, 1962-1965. 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 Productivity of a tropical rain forest was determined at the Khao Chong study site, under the auspices of the Joint Thai-Japanese Biological Expedition to South-East Asia. Biomass increment within a 40 m x 40 m study area for all trees greater than 4.5 cm dbh (diameter at breast height, 130 cm) was monitored between

393

NPP Tropical Forest: Marafunga, Papua New Guinea  

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

Marafunga, Papua New Guinea, 1970-1971 Marafunga, Papua New Guinea, 1970-1971 [PHOTOGRAPH] Photograph: Profile of tropical forest at Marafunga (click on the photo to view a series of images from this site) Data Citation Cite this data set as follows: Edwards, P. J., and P. J. Grubb. 1999. NPP Tropical Forest: Marafunga, Papua New Guinea, 1970-1971. 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 lower montane secondary rain forest were determined in 1970-71 at Marafunga in the highlands of Papua New Guinea. The only component of net primary production (NPP) determined at Marafunga was litterfall, although

394

NPP Tropical Forest: Magdalena Valley, Colombia  

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

Magdalena Valley, Colombia, 1970-1971 Magdalena Valley, Colombia, 1970-1971 Data Citation Cite this data set as follows: Folster, H. 1999. NPP Tropical Forest: Magdalena Valley, Colombia, 1970-1971. 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, litterfall, and nutrient content of above-ground vegetation and soil were determined for a tropical seasonal evergreen forest at Magdalena Valley, Colombia, during an 18-month period in 1970 and 1971. The study was sponsored by the German Research Foundation. Of primary interest were biomass and nutrient dynamics of a forest stand that had developed atop a perched water table on a typical valley terrace. Perched water tables give rise to pseudogley soils with low pH, prolonged

395

NPP Tropical Forest: Manaus, Brazil [Amazonas]  

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

Manaus, Brazil, 1963-1990 Manaus, Brazil, 1963-1990 Data Citation Cite this data set as follows: Piedade, M. T. F., and W. J. Junk. 2001. NPP Tropical Forest: Manaus, Brazil, 1963-1990. 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 components of productivity for several types of tropical forest were determined for a number of study sites around Manaus, Brazil, from 1963 to the present. The study sites include several (0.2 ha) stands of terra firme (dry land) forest at " 64" to the northeast of Manaus, towards Itacoatiara (approximately 3.0 S 59.7 W, near the " Egler" Reserve), riverine forest in the 10 km x 10 km " Reserve" (2.95 S 59.95 W, 26 km

396

Intersecting solitons, amoeba, and tropical geometry  

Science Conference Proceedings (OSTI)

We study the generic intersection (or web) of vortices with instantons inside, which is a 1/4 Bogomol'nyi-Prasad-Sommerfield state in the Higgs phase of five-dimensional N=1 supersymmetric U(N{sub C}) gauge theory on R{sub t}x(C*){sup 2}{approx_equal}R{sup 2,1}xT{sup 2} with N{sub F}=N{sub C} Higgs scalars in the fundamental representation. In the case of the Abelian-Higgs model (N{sub F}=N{sub C}=1), the intersecting vortex sheets can be beautifully understood in a mathematical framework of amoeba and tropical geometry, and we propose a dictionary relating solitons and gauge theory to amoeba and tropical geometry. A projective shape of vortex sheets is described by the amoeba. Vortex charge density is uniformly distributed among vortex sheets, and negative contribution to instanton charge density is understood as the complex Monge-Ampere measure with respect to a plurisubharmonic function on (C*){sup 2}. The Wilson loops in T{sup 2} are related with derivatives of the Ronkin function. The general form of the Kaehler potential and the asymptotic metric of the moduli space of a vortex loop are obtained as a by-product. Our discussion works generally in non-Abelian gauge theories, which suggests a non-Abelian generalization of the amoeba and tropical geometry.

Fujimori, Toshiaki [Department of Physics, Tokyo Institute of Technology Tokyo 152-8551 (Japan); Nitta, Muneto [Department of Physics, Keio University, Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Ohta, Kazutoshi [Department of Physics, Tohoku University, Sendai 980-8578 (Japan); Sakai, Norisuke [Department of Mathematics, Tokyo Woman's Christian University, Tokyo 167-8585 (Japan); Yamazaki, Masahito [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)

2008-11-15T23:59:59.000Z

397

Initial results from ensemble SCM simulations of TWP-ICE  

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

high cloud. The model high cloud is sensitive to the forcing during the suppressed monsoon. There is insufficient low-level cloud during the suppressed monsoon. LW Radiation...

398

MISR-Derived Statistics of Cumulus Geometry at TWP Site  

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

statistics of the cumulus geometry are presented in Figure 5a and Table 1a. There is a weak positive relationship between fluctuations of cloud base and cloud top (correlation...

399

ARM-UAV TWP-ICE Payload Instrumentation Details  

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

Payload Instrumentation Details McCoy, Robert Sandia National Laboratories Tooman, Tim Sandia National Laboratories McFarquhar, Greg University of Illinois Category: Field...

400

Rainfall Observation from Tropical Rainfall Measuring Mission (TRMM) Satellite  

Science Conference Proceedings (OSTI)

National Space Development Agency of Japan (NASDA) successfully launched the Tropical Rainfall Measuring Mission (TRMM) observatory at 06:27 (JST) on Nov. 28, 1997. The TRMM satellite carries the first spaceborne Precipitation Radar (PR) which was developed ... Keywords: Clouds and the Earth's Radiant Energy System (CERES), El Nio, Lightning Imaging Sensor (LIS), Precipitation Radar (PR), TRMM Microwave Imager (TMI), Tropical Rainfall Measuring Mission (TRMM), Visible Infrared Scanner (VIRS), heavy rain, tropical cyclone

K. Hiroshima

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Changes in number and intensity of world-wide tropical cyclones  

E-Print Network (OSTI)

Bayesian statistical models were developed for the number of tropical cyclones and the rate at which these cyclones became hurricanes in the North Atlantic, North and South Indian, and East and West Pacific Oceans. We find that there is small probability that the number of cyclones has increased in the past thirty years. The rate at which these storms become hurricanes appears to be constant. The rate at which hurricanes evolve into category 4 and higher major storms does appear to have increased. We also investigate storm intensity by measuring the distribution of individual storm lifetime in days, storm track length, and Emanuel's power dissiptation index. We find little evidence that, overall, the mean of the distribution of individual storm intensity is changing through time, but the variability of the distribution has increased. The cold tongue index and the North Atlantic oscillation index were found to be strongly associated with storm quality in the Western, and to a smaller extent, the Eastern Pacifi...

Briggs, W M

2007-01-01T23:59:59.000Z

402

parsons-98.pdf  

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

the very dry air in the troposphere over the TWP does not come about from strong subsidence of tropical air, as perhaps generally thought, during the suppressed phases of the...

403

Tropical anvil cirrus evolution from observations and numerical...  

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

cirrus evolution from observations and numerical simulations Deng, Min University of Utah Mace, Gerald University of Utah Category: Modeling The tropical anvil cirrus formation...

404

Geographical Distribution of Biomass Carbon in Tropical Southeast...  

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

APPENDIX A: REPRINT OF PERTINENT LITERATURE Brown, S., L. R. Iverson, A. Prasad, and D. Liu. 1993. Geographical distributions of carbon in biomass and soils of tropical Asian...

405

Tropical Africa: Land Use, Biomass, and Carbon Estimates for...  

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

This Numeric Data Package Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information...

406

The effects of ocean eddies on tropical cyclones.  

E-Print Network (OSTI)

??The purpose of this study is to understand the interactions of tropical cyclones with ocean eddies. In particular we examine the influence of a cold-core (more)

Miltenberger, Alexander Reid

2012-01-01T23:59:59.000Z

407

Tropical Africa: Mean Biomass of Closed Forests By Country  

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

Forests By Country image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information...

408

Tropical Africa: Mean Biomass of Open Forests By Country  

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

Forests By Country image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information...

409

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

410

JPL Tropical Cyclone Information System Analysis Tool | Data...  

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

JPL Tropical Cyclone Information System Analysis Tool Dataset Summary Description This tool will let you analyze data associated with a storm. You can plot histograms, maps, and...

411

RSS Feeds for Specific Tropical Cyclones of the North Atlantic...  

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

RSS Feeds for Specific Tropical Cyclones of the North Atlantic, Caribbean Sea, and Gulf of Mexico (English) Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS...

412

The Association of Tall Eyewall Convection with Tropical Cyclone Intensification .  

E-Print Network (OSTI)

??Despite decades of research, operational weather agencies still find it difficult to predict change in the intensity of a tropical cyclone's surface wind. This dissertation (more)

Kelley, Owen A.

2008-01-01T23:59:59.000Z

413

Tropical cyclone size in observations and in radiative-convective equilibrium  

E-Print Network (OSTI)

Tropical cyclone size remains an unsolved problem in tropical meteorology, yet size plays a significant role in the damage caused by tropical cyclones due to wind, storm surge, and inland freshwater flooding. This work ...

Chavas, Daniel Robert

2013-01-01T23:59:59.000Z

414

Improving the Detection and Tracking of Tropical Cyclones in Atmospheric General Circulation Models  

Science Conference Proceedings (OSTI)

Dynamical seasonal forecasts of tropical storm frequency require robust and efficient algorithms for detection and tracking of tropical storms in atmospheric general circulation models (AGCMs). Tropical storms are generally detected when dynamic ...

Suzana J. Camargo; Stephen E. Zebiak

2002-12-01T23:59:59.000Z

415

Extratropical Transition of Southwest Pacific Tropical Cyclones. Part I: Climatology and Mean Structure Changes  

Science Conference Proceedings (OSTI)

A database of tropical cyclone best track and intensity information for the southwest Pacific Ocean basin is used to construct a 28-year climatology for tropical cyclones that move into middle latitudes. Of the nine or so tropical cyclones that ...

Mark R. Sinclair

2002-03-01T23:59:59.000Z

416

Role of Rossby Waves in the Remote Effects of the North Indian Ocean Tropical Disturbances  

Science Conference Proceedings (OSTI)

Remote effects due to the tropical disturbances in the north Indian Ocean are investigated by analyzing long-lasting (?5 days) tropical disturbances, which reached at least the strength of tropical storms. The present analysis is carried out for ...

J. V. Ratnam; S. K. Behera; Y. Masumoto; T. Yamagata

2012-11-01T23:59:59.000Z

417

Differing Trends in the Tropical Surface Temperatures and Precipitation over Land and Oceans  

Science Conference Proceedings (OSTI)

In the past 50 years, sea surface temperatures (SSTs) in the tropical latitudes have trended toward a warmer ocean state. As a response, tropical land surface temperatures, as well as tropical tropospheric temperatures (as manifested in the ...

Arun Kumar; Fanglin Yang; Lisa Goddard; Siegfried Schubert

2004-02-01T23:59:59.000Z

418

Tropical Plumes over Eastern North Africa as a Source of Rain in the Middle East  

Science Conference Proceedings (OSTI)

Tropical plumes (TPs) reflect tropicalextratropical interaction associated with the transport of moisture from the Tropics to extratropical latitudes. They are observed in satellite images as continuous narrow cloud bands ahead of upper-level ...

Shira Rubin; Baruch Ziv; Nathan Paldor

2007-12-01T23:59:59.000Z

419

The Impact of Observational Technology on Climate Database Quality: Tropical Cyclones in the Tasman Sea  

Science Conference Proceedings (OSTI)

The recorded climatology of tropical cyclones that affect the Tasman Sea spans the period from 1911 to the present. This climatology is a subset of the much larger Australian Tropical Cyclone database, which is the official record of all tropical ...

Bruce W. Buckley; Lance M. Leslie; Milton S. Speer

2003-08-01T23:59:59.000Z

420

The Unusual Behavior and Precipitation Pattern Associated with Tropical Storm Ignacio (1997)  

Science Conference Proceedings (OSTI)

A case study of eastern North Pacific Tropical Storm Ignacio (1997), which brought rainfall to the southwestern United States as a tropical cyclone and to the northwestern United States as an extratropical cyclone, is presented. This tropical ...

Kimberly M. Wood; Elizabeth A. Ritchie

2012-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "twp tropical western" 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

Global Distribution of Hot Towers in Tropical Cyclones Based on 11-Yr TRMM Data  

Science Conference Proceedings (OSTI)

Global distribution of hot towers in tropical cyclones (TCs) is statistically quantified using an 11-yr Tropical Rainfall Measuring Mission (TRMM) Tropical Cyclone Precipitation Feature (TCPF) database. From 6003 individual TRMM overpasses of 869 ...

Cheng Tao; Haiyan Jiang

2013-02-01T23:59:59.000Z

422

Genesis of Tropical Storm Eugene (2005) from Merging Vortices Associated with ITCZ Breakdowns. Part I: Observational and Modeling Analyses  

Science Conference Proceedings (OSTI)

Although tropical cyclogenesis occurs over all tropical warm ocean basins, the eastern Pacific appears to have the highest frequency of tropical cyclogenesis events per unit area. In this study, tropical cyclogenesis from merging mesoscale ...

Chanh Q. Kieu; Da-Lin Zhang

2008-11-01T23:59:59.000Z

423

Southern hemisphere tropical cyclone intensity forecast methods used at the Joint Typhoon Warning Center, Part II: statistical dynamical forecasts  

E-Print Network (OSTI)

The development and performance of a statistical- dynamical tropical cyclone intensity forecast model, which was developed for the United States of Americas Joint Typhoon Warning Center (JTWC), is described. This model, called the Southern Hemisphere Statistical Typhoon Intensity Prediction Scheme (SH STIPS), mirrors similar capabilities created for use in the western North Pacific and North Indian Ocean tropical cyclone basins. The model is created by fitting an optimal combination of factors related to climatology and persistence, intensification potential, vertical wind shear, dynamic size/intensity forecasts and atmospheric stability. All of these factors except the climatology and persistence information are derived from global forecast model analyses and forecasts. In July 2005 the SH STIPS model began a real-time evaluation period. The forecasts from the SH STIPS model have outperformed the combined climatology and persistence based forecast and thus are skillful in independent testing since that time. Since October 2006, SH STIPS has been the primary member in an operational consensus forecast of tropical cyclone intensity change provided to the JTWC. Documentation

John A. Knaff; Charles R. Sampson

2008-01-01T23:59:59.000Z

424

Preparation for upgrading western subbituminous coal  

SciTech Connect

The objective of this project was to establish the physical and chemical characteristics of western coal and determine the best preparation technologies for upgrading this resource. Western coal was characterized as an abundant, easily mineable, clean, low-sulfur coal with low heating value, high moisture, susceptibility to spontaneous ignition, and considerable transit distances from major markets. Project support was provided by the Morgantown Energy Technology Center (METC) of the US Department of Energy (DOE). The research was conducted by the Western Research Institute, (WRI) in Laramie, Wyoming. The project scope of work required the completion of four tasks: (1) project planning, (2) literature searches and verbal contacts with consumers and producers of western coal, (3) selection of the best technologies to upgrade western coal, and (4) identification of research needed to develop the best technologies for upgrading western coals. The results of this research suggest that thermal drying is the best technology for upgrading western coals. There is a significant need for further research in areas involving physical and chemical stabilization of the dried coal product. Excessive particle-size degradation and resulting dustiness, moisture reabsorption, and high susceptibility to spontaneous combustion are key areas requiring further research. Improved testing methods for the determination of equilibrium moisture and susceptibility to spontaneous ignition under various ambient conditions are recommended.

Grimes, R.W.; Cha, C.Y.; Sheesley, D.C.

1990-11-01T23:59:59.000Z

425

Effect of ocean mesoscale variability on the mean state of tropical Atlantic climate  

E-Print Network (OSTI)

J. J. Antonov, 2002: World Ocean Atlas 2001: Objectiveand variability in tropical ocean regions. Clim. Dynm. , 18,air-sea fluxes for Tropical Ocean Global Atmosphere Coupled-

Seo, H; Jochum, M; Murtugudde, R; Miller, A J

2006-01-01T23:59:59.000Z

426

The Dynamics and Predictability of Tropical Cyclones  

E-Print Network (OSTI)

Through methodology unique for tropical cyclones in peer-reviewed literature, this study explores how the dynamics of moist convection affects the predictability of tropical cyclogenesis. Mesoscale models are used to perform short-range ensemble forecasts of a non-developing disturbance in 2004 and Hurricane Humberto in 2007; both of these cases were highly unpredictable. Taking advantage of discrepancies between ensemble members in short-range ensemble forecasts, statistical correlation is used 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-level moisture are two of the most important factors for genesis. In the gulf low, differences in CAPE are related to variance in quasi-geostrophic lift, and in Humberto the differences are related to the degree of interaction between the cyclone and a nearby front. Regardless of the source of CAPE variance, higher CAPE and mid-level moisture combine to yield more active initial convection and more numerous and strong vortical hot towers (VHTs), which incrementally contribute to a stronger vortex. In both cases, strength differences between ensemble members are further amplified by differences in convection that are related to oceanic heat fluxes. Eventually the WISHE mechanism results in even larger ensemble spread, and in the case of Humberto, uncertainty related to the time of landfall drives spread even higher. It is also shown that initial condition differences much smaller than current analysis error can ultimately control whether or not a tropical cyclone forms. Furthermore, even smaller differences govern how the initial vortex is built. Differences in maximum winds and/or vorticity vary nonlinearly with initial condition differences and depend on the timing and intensity of small mesoscale features such as VHTs and cold pools. Finally, the strong sensitivity to initial condition differences in both cases exemplifies the inherent uncertainties in hurricane intensity prediction. This study illustrates the need for implementing advanced data analysis schemes and ensemble prediction systems to provide more accurate and event-dependent probabilistic forecasts.

Sippel, Jason A.

2008-12-01T23:59:59.000Z

427

NREL: Transmission Grid Integration - Western Wind and Solar...  

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

Western Wind and Solar Integration Study The Western Wind and Solar Integration Study, one of the largest regional solar and wind integration studies to date, explores the...

428

WESTERN ELECTRIC INDUSTRY LEADERS GROUP | Department of Energy  

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

WESTERN ELECTRIC INDUSTRY LEADERS GROUP WESTERN ELECTRIC INDUSTRY LEADERS GROUP Halting global warming and protecting the environment have properly moved high atop the...

429

Potential source rocks in the western Kansas petroleum province.  

E-Print Network (OSTI)

??The source of the hydrocarbons in western Kansas has been an ongoing debate for many years. The highly organic-rich Anadarko basin, directly south of western (more)

Hill, Tyler J.

2011-01-01T23:59:59.000Z

430

The Folklife Archives at Western Kentucky University: Past and Present.  

E-Print Network (OSTI)

??This work focuses on Western Kentucky Universitys Folklife Archives located in Bowling Green, Kentucky. Western Kentucky University has a rich history of folklore scholarship, dating (more)

Puglia, David

2010-01-01T23:59:59.000Z

431

ASSOCIATIONS OF TUNA WITH FLOTSAM IN THE EASTERN TROPICAL PACIFIC  

E-Print Network (OSTI)

ASSOCIATIONS OF TUNA WITH FLOTSAM IN THE EASTERN TROPICAL PACIFIC PAUL R. GREENBLA'IT' ABSTRACT The fishing record for flotsam-associated tuna in the eastern tropical Pacific was examined. The rivers of in an area indicates that unassociated tuna and flotsam-associated tuna are related. The number of sets made

432

Midlevel Ventilations Constraint on Tropical Cyclone Intensity  

Science Conference Proceedings (OSTI)

Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a tropical cyclones intensity. An idealized framework based ...

Brian Tang; Kerry Emanuel

2010-06-01T23:59:59.000Z

433

Statistical modelling of tropical cyclone tracks: modelling cyclone lysis  

E-Print Network (OSTI)

We describe results from the fifth stage of a project to build a statistical model of tropical cyclone tracks. The previous stages considered genesis and the shape of tracks. We now consider in more detail how to represent the lysis (death) of tropical cyclones. Improving the lysis model turns out to bring a significant improvement to the track model overall.

Hall, T; Hall, Tim; Jewson, Stephen

2005-01-01T23:59:59.000Z

434

Automatic tropical cyclone eye fix using genetic algorithm  

Science Conference Proceedings (OSTI)

Tropical cyclones (TCs) are weather systems with vast destructive power. To forecast TC tracks, forecasters need to locate their circulation centers, or eyes. This eye fix process is often done manually in practice. Since subjective elements are involved ... Keywords: Genetic algorithm, Meteorological computing, Tropical cyclone eye fix, Weather forecasting, Weather system modeling

Ka Yan Wong; Chi Lap Yip; Ping Wah Li

2008-01-01T23:59:59.000Z

435

A Rapid Loss Index for Tropical Cyclone Disasters in China  

Science Conference Proceedings (OSTI)

Disaster emergency response needs rapid estimation on disaster loss. In China it is of great importance to develop a loss index for rapidly assessing tropical cyclone (TC) disaster loss. In this paper, a new composite loss index for TC landing on China ... Keywords: Tropical Cyclone, Disaster, Loss Index, Rapid Loss Assessment

Ying Li; Weihua Fang

2012-06-01T23:59:59.000Z

436

The Direct Response to Tropical Heating in a Baroclinic Atmosphere  

Science Conference Proceedings (OSTI)

The global response to tropical heating is studied by performing a time integration of a 15-level primitive equation model, starting with a basic flow maintained by a constant forcing. The direct, quasi-steady response to the tropical heating is ...

Feifei Jin; Brian J. Hoskins

1995-02-01T23:59:59.000Z

437

Assessing the Skill of Operational Atlantic Seasonal Tropical Cyclone Forecasts  

Science Conference Proceedings (OSTI)

Since 1984, W. Gray of Colorado State University and a team of researchers have been issuing seasonal tropical cyclone forecasts for the North Atlantic Ocean. Prior to this, little work had been done in the area of long-term tropical cyclone ...

Brian F. Owens; Christopher W. Landsea

2003-02-01T23:59:59.000Z

438

Categorical Exclusion Determinations: Western Area Power  

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

Sierra Nevada Region Sierra Nevada Region Categorical Exclusion Determinations: Western Area Power Administration-Sierra Nevada Region Categorical Exclusion Determinations issued by Western Area Power Administration-Sierra Nevada Region. DOCUMENTS AVAILABLE FOR DOWNLOAD July 3, 2013 CX-010684: Categorical Exclusion Determination Cottonwood-Roseville Optical Groundwire Project CX(s) Applied: B4.6, B4.7, B4.11, B4.13 Date: 07/03/2013 Location(s): California Offices(s): Western Area Power Administration-Sierra Nevada Region September 15, 2011 CX-006896: Categorical Exclusion Determination Maxwell - O'Banion Optical Ground Wire CX(s) Applied: B1.7, B4.6, B4.7, B4.11 Date: 09/15/2011 Location(s): Sutter County, California Office(s): Western Area Power Administration-Sierra Nevada Region, National

439

Case Western University (Vestas) | Open Energy Information  

Open Energy Info (EERE)

University (Vestas) University (Vestas) Jump to: navigation, search Name Case Western University (Vestas) Facility Case Western University (Vestas) Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Case Western University Developer Case Western University Energy Purchaser Sopko & Sons - excess to First Energy Location Euclid OH Coordinates 41.60216607°, -81.49763346° 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":41.60216607,"lon":-81.49763346,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

440

Case Western University (Nordex) | Open Energy Information  

Open Energy Info (EERE)

University (Nordex) University (Nordex) Jump to: navigation, search Name Case Western University (Nordex) Facility Case Western University (Nordex) Sector Wind energy Facility Type Community Wind Facility Status In Service Owner Case Western University Developer Case Western University Energy Purchaser Stamco Inc - excess to First Energy Location Euclid OH Coordinates 41.60213398°, -81.49688244° 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":41.60213398,"lon":-81.49688244,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "twp tropical western" 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

Categorical Exclusion Determinations: Western Area Power  

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

Colorado River Storage Project Management Center Colorado River Storage Project Management Center Categorical Exclusion Determinations: Western Area Power Administration-Colorado River Storage Project Management Center Categorical Exclusion Determinations issued by Western Area Power Administration-Colorado River Storage Project Management Center. DOCUMENTS AVAILABLE FOR DOWNLOAD January 25, 2011 CX-005545: Categorical Exclusion Determination Installation of Metering and Circuit Breaker at Powell 69-Kilovolt Substation CX(s) Applied: B4.11 Date: 01/25/2011 Location(s): Page, Arizona Office(s): Western Area Power Administration-Colorado River Storage Project Management Center October 26, 2009 CX-005544: Categorical Exclusion Determination Power Rate Formula for the Provo River Project of the Western Area Power

442

Western Electricity Coordinating | OpenEI  

Open Energy Info (EERE)

Western Electricity Coordinating Western Electricity Coordinating Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 117, and contains only the reference case. The dataset uses gigawatts, billion kilowatthours and quadrillion Btu. The data is broken down into generating capacity, electricity generation and energy consumption. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords AEO California EIA Renewable Energy Generation Western Electricity Coordinating Data application/vnd.ms-excel icon AEO2011: Renewable Energy Generation by Fuel - Western Electricity Coordinating Council / California (xls, 119.2 KiB) Quality Metrics Level of Review Peer Reviewed

443

Categorical Exclusion Determinations: Western Area Power  

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

Upper Great Plains Region Upper Great Plains Region Categorical Exclusion Determinations: Western Area Power Administration-Upper Great Plains Region Categorical Exclusion Determinations issued by Western Area Power Administration-Upper Great Plains Region. DOCUMENTS AVAILABLE FOR DOWNLOAD March 22, 2013 CX-010553: Categorical Exclusion Determination Appledorn Substation Construction CX(s) Applied: B4.11 Date: 03/22/2010 Location(s): Minnesota Offices(s): Western Area Power Administration-Upper Great Plains Region December 3, 2012 CX-009534: Categorical Exclusion Determination Construct New Transmission Line and Footings, Garrison Switchyard CX(s) Applied: B4.13 Date: 12/03/2012 Location(s): North Dakota Offices(s): Western Area Power Administration-Upper Great Plains Region October 11, 2011

444

Categorical Exclusion Determinations: Western Area Power  

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

Desert Southwest Region Desert Southwest Region Categorical Exclusion Determinations: Western Area Power Administration-Desert Southwest Region Categorical Exclusion Determinations issued by Western Area Power Administration-Desert Southwest Region. DOCUMENTS AVAILABLE FOR DOWNLOAD August 22, 2013 CX-010882: Categorical Exclusion Determination Liberty-Parker Dam #2 230-Kilovolt Transmission Line, Optical Power Ground Wire Repair CX(s) Applied: B4.7 Date: 08/22/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region August 12, 2013 CX-010883: Categorical Exclusion Determination PHX-LOB and LIB-LOB 230-Kilovolt Double-Circuit- Replace Insulators at Structure No. 28-2 With NCI Type Polymers CX(s) Applied: B1.3 Date: 08/12/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

445

DECLINING MOUNTAIN SNOWPACK IN WESTERN NORTH AMERICA*  

Science Conference Proceedings (OSTI)

In western North America, snow provides crucial storage of winter precipitation, effectively transferring water from the relatively wet winter season to the typically dry summers. Manual and telemetered measurements of spring snow-pack, ...

Philip W. Mote; Alan F. Hamlet; Martyn P. Clark; Dennis P. Lettenmaier

2005-01-01T23:59:59.000Z

446

Surface Mesonets of the Western United States  

Science Conference Proceedings (OSTI)

In recent years the western United States has gone from being a region with relatively sparse surface observations to one that has a number of mesoscale networks maintained by a variety of interests. Expanding population and increased ...

Donna F. Tucker

1997-07-01T23:59:59.000Z

447

Western North Pacific Monsoon Depression Formation  

Science Conference Proceedings (OSTI)

Relatively few studies have been carried out as to the conditions leading to the formation of monsoon depressions in the western North Pacific. Two monsoon depression formations during July 2007 were analyzed using ECMWF analyses and satellite ...

Jodi C. Beattie; Russell L. Elsberry

2012-12-01T23:59:59.000Z

448

Competitive interstate taxation of western coal  

SciTech Connect

This paper analyzes the potential market power of western states in setting coal severance taxes. An attempt to determine the emphasis placed by the western states on the development of their coal resources is also made. Three market structures are analyzed. One involves a western regional cartel, setting taxes collectively. The other cases are noncooperative tax equilibria with Montana and Wyoming competing against each other. We study the effects on these equilibria of changes in each region's relative emphasis on development of coal resources vs tax revenue. The welfare impacts of these tax setting policies are also addressed. The analysis is based on an activity analysis of US coal markets. The results show that the taxes associated with the noncooperative competitive tax equilibria are close to present tax levels. Additionally, we conclude that western states currently are quite efficient extractors of economic rent from coal produced within their boundaries, in terms of welfare loss per dollar of tax revenue collected. 2 figures.

Kolstad, C.D.; Wolak, F.A. Jr.

1983-01-01T23:59:59.000Z

449

Western States Shale Production (Billion Cubic Feet)  

Annual Energy Outlook 2012 (EIA)

View History: Annual Download Data (XLS File) No chart available. Western States Shale Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

450

Slope Control in Western Boundary Currents  

Science Conference Proceedings (OSTI)

An analytic solution is presented for the steady-state depth-averaged western boundary current flowing over the continental slope by combining three highly idealized models: the Stommel model, the Munk model, and the arrested topographic wave ...

Sang-Ki Lee; J. L. Pelegr; John Kroll

2001-11-01T23:59:59.000Z

451

EIA - Natural Gas Pipeline System - Western Region  

U.S. Energy Information Administration (EIA) Indexed Site

Western Region Western Region About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Pipelines in the Western Region Overview | Transportation South | Transportation North | Regional Pipeline Companies & Links Overview Ten interstate and nine intrastate natural gas pipeline companies provide transportation services to and within the Western Region (Arizona, California, Idaho, Nevada, Oregon, and Washington), the fewest number serving any region (see Table below). Slightly more than half the capacity entering the region is on natural gas pipeline systems that carry natural gas from the Rocky Mountain area and the Permian and San Juan basins. These latter systems enter the region at the New Mexico-Arizona and Nevada-Utah State lines. The rest of the capacity arrives on natural gas pipelines that access Canadian natural gas at the Idaho and Washington State border crossings with British Columbia, Canada.

452

The Energy Department Prepares for Tropical Storm Karen | Department of  

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

The Energy Department Prepares for Tropical Storm Karen The Energy Department Prepares for Tropical Storm Karen The Energy Department Prepares for Tropical Storm Karen October 4, 2013 - 3:00pm Addthis Marissa Newhall Marissa Newhall Managing Editor, Energy.gov What does this mean for me? Follow the latest news on Tropical Storm Karen by visiting the FEMA blog. Stay up-to-date on energy delivery impacts by reading twice-daily situation reports from the Energy Department. Visit ready.gov for more information about emergency preparedness. Editor's note: As of Monday, October 7, 2013, Energy Department reporting about Tropical Storm Karen has concluded, and no additional situation reports will be posted. The Department of Energy (DOE) is working closely with the Federal Emergency Management Agency (FEMA) and in support of state and local

453

A Tropical "NAT-like" belt observed from space  

E-Print Network (OSTI)

The optical properties of cold tropical tropopause clouds are examined on a global scale, using two years of space-borne lidar observations from CALIPSO (June 2006 ? May 2008). The linear depolarization ratio, color ratio and backscatter signal are analyzed in tropical clouds colder than 200 K in a way similar to recent studies of Polar Stratospheric Clouds (PSCs). It is found that the three categories of particles encountered in PSC (Ice, Sulfate Ternary Solutions or STS, and Nitric Acid Trihydrate or NAT) do also occur in tropical cold cloud layers. Particles with optical properties similar to NAT are few, but they cover the tropical belt and represent about 20% of cold cloud tropical particles. The optical behavior of these particles requires them to be small, non-spherical, optically thin, and persistent in the TTL at temperatures colder than 200 K; NAT particles and very small ice crystals meet these criteria.

Chepfer, Hlne; 10.1029/2008GL036289

2009-01-01T23:59:59.000Z

454

Climatic regimes of tropical convection and rainfall  

SciTech Connect

Annual distribution and phase propagation of tropical convection are delineated using harmonic and amplitude-phase characteristics analysis of climatological pentad mean outgoing longwave radiation and monthly frequencies of highly reflective cloud. An annual eastward propagation of peak rainy season along the equator from the central Indian Ocean (60[degrees]E) to Arafura Sea (130[degrees]E) is revealed. This indicates a transition from the withdrawal of the Indian summer monsoon to the onset of the Australian summer monsoon. Significant bimodal variations are found around major summer monsoon regions. These variations originate from the interference of two adjacent regimes. The convergence zones over the eastern North Pacific, the South Pacific, and the southwest Indian Ocean are identified as a marine monsoon regime that is characterized by a unimodal variation with a concentrated summer rainfall associated with the development of surface westerlies equatorward of a monsoon trough. Conversely, the central North Pacific and North Atlantic convergence zones between persistent northeast and southeast trades are classified as trade-wind convergence zones; which differ from the marine monsoon regime by their persistent rainy season and characteristic bimodal variation with peak rainy seasons occurring in late spring and fall. The roles of the annual march of sea surface temperature in the phase propagation and formation of various climatic regimes of tropical convection are also discussed. 34 refs., 8 figs., 1 tab.

Wang, Bin (Univ. of Hawaii, Honolulu, HI (United States))

1994-07-01T23:59:59.000Z

455

A Technique for Estimating Recurrence Intervals of Tropical Cyclone-Related High Winds in the Tropics: Results for Guam  

Science Conference Proceedings (OSTI)

The authors develop a technique that applies models of the radial profile of the wind in tropical cyclones to historical best-track databases of tropical cyclones, in order to estimate the wind (at 1-h intervals) experienced at any selected ...

John A. Rupp; Mark A. Lander

1996-05-01T23:59:59.000Z

456

Prediction and Diagnosis of Tropical Cyclone Formation in an NWP System. Part II: A Diagnosis of Tropical Cyclone Chris Formation  

Science Conference Proceedings (OSTI)

This is the second of a three-part investigation into tropical cyclone (TC) genesis in the Australian Bureau of Meteorologys Tropical Cyclone Limited Area Prediction System (TC-LAPS). The primary TC-LAPS vortex enhancement mechanism (convergence/...

K. J. Tory; M. T. Montgomery; N. E. Davidson; J. D. Kepert

2006-12-01T23:59:59.000Z

457

ARM - Campaign Instrument - s-band-profiler  

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

govInstrumentss-band-profiler govInstrumentss-band-profiler Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NOAA S-band (2835 Mhz) Profiler (S-BAND-PROFILER) Instrument Categories Cloud Properties, Atmospheric Profiling Campaigns CRYSTAL-FACE [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2002.06.26 - 2002.08.01 Midlatitude Continental Convective Clouds Experiment (MC3E): Multi-Frequency Profilers [ Download Data ] Southern Great Plains, 2011.04.22 - 2011.06.06 Tropical Warm Pool - International Cloud Experiment (TWP-ICE) [ Download Data ] Tropical Western Pacific, 2006.01.21 - 2006.02.13 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available

458

ARM - Campaign Instrument - sfcflux  

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

govInstrumentssfcflux govInstrumentssfcflux Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : Surface Flux (SFCFLUX) Instrument Categories Radiometric, Surface Meteorology, Surface/Subsurface Properties Campaigns Tropical Warm Pool - International Cloud Experiment (TWP-ICE) [ Download Data ] Tropical Western Pacific, 2006.01.21 - 2006.02.13 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes. CO2 flux Soil surface temperature CO2 concentration Soil moisture Precipitation Horizontal wind Net broadband total irradiance

459

ARM - Facility News Article  

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

April 15, 2006 [Facility News] April 15, 2006 [Facility News] TWP Site Hosts Preliminary Study for Long Term Measurements of Greenhouse Gases Bookmark and Share To validate the space-based carbon dioxide retrievals by the Orbiting Carbon Observatory (OCO) through comparative carbon dioxide measurements, ARM's Tropical Western Pacific site in Darwin, Australia, is hosting a ground-based solar-viewing Fourier transform spectrometer (FTS) mobile laboratory, sponsored by the OCO Science Team. Between January 15 and February 7, 2006, overflights of the FTS site, as well as "flights of opportunity" by ARM's Proteus aircraft during the Tropical Warm Pool International Cloud Experiment, were completed. Additional flights from the European Union's Geophysica aircraft over the site in November and December

460

Posters  

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

1 1 Posters On the Fundamental Role of Tropospheric Radiative Cooling on the Diurnal Cycle of Intense Tropical Convection W. M. Gray, J. D. Sheaffer, and W. Thorson Department of Atmospheric Science Colorado State University Ft. Collins, Colorado Summary The atmosphere performs a day versus night (DVN) radiation experiment for us each 24 hours; we should attempt to study and learn from this ever-repeating DVN cycle of radiative cooling. The Atmospheric Radiation Measurement (ARM) Cloud and Radiation Testbed (CART) tropical western Pacific (TWP) experiment presents an ideal opportunity for the study of these radiatively induced diurnal variations. Introduction Any systematic misrepresentation of the diurnally varying distribution of cloudiness type, amount, and related radiative

Note: This page contains sample records for the topic "twp tropical western" 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

NREL Variability Analysis for the Western Interconnect (Presentation)  

DOE Green Energy (OSTI)

This presentation investigates the effects of several Energy Imbalance Markets implementations in the Western Interconnect.

Milligan, M.; Kirby, B.; King, J.

2011-07-01T23:59:59.000Z

462

www.uwo.ca/sci Discover yourself at Western  

E-Print Network (OSTI)

www.uwo.ca/sci Science at Western Discover yourself at Western including the Bachelor of Medical Sciences (BMSc) Program www.uwo.ca/bmscc #12;The University of Western Ontario Science at Western|2010|www.uwo.ca/sci Dear Student, Your interests and skills have guided you to seek higher education in the sciences. I am

Christensen, Dan

463

RELATING TREE PHYSIOLOGY TO PAST AND FUTURE CHANGES IN TROPICAL RAINFOREST TREE COMMUNITIES  

E-Print Network (OSTI)

Rate Determination for Tropical Trees, Harvard Forest, Petersham, MA, 1­3 April, 1980. Yale University

Coley, Phyllis

464

Tropical forestry practices for carbon sequestration  

E-Print Network (OSTI)

Carbon sequestration through forestry has the potential to play a significant role in ameliorating global environmental problems such as atmospheric accumulation of GHG's and climate change. This chapter provides an overview of various aspects related to carbon sequestration through forestry. It describes the main concepts of carbon fixation; the trends in global environmental policy are discussed; different forestry practices are listed; examples of existing projects are given; and finally, a case study of a carbon sequestration project in Malaysia is described. The paper also discusses issues related to the quantification of carbon sequestration potential of different forestry options. This section was included with the intention of specifically highlighting some problems related to commercial transactions for carbon sequestration. Key words: carbon sequestration, CO2 offset, tropical forestry, dipterocarps.

Pedro Moura-costa; Innoprise-face Foundation

1996-01-01T23:59:59.000Z

465

Tropical Determinant of Integer Doubly-Stochastic Matrices  

E-Print Network (OSTI)

Let D(m,n) be the set of all the integer points in the m-dilate of the Birkhoff polytope of doubly-stochastic n by n matrices. In this paper we find the sharp upper bound on the tropical determinant over the set D(m,n). We define a version of the tropical determinant where the maximum over all the transversals in a matrix is replaced with the minimum and then find the sharp lower bound on thus defined tropical determinant over D(m,n).

Dinitz, Thomas; Soprunova, Jenya

2010-01-01T23:59:59.000Z

466

Categorical Exclusion Determinations: Western Area Power  

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

March 29, 2012 March 29, 2012 CX-008407: Categorical Exclusion Determination Terry Ranch Road Substation CX(s) Applied: B1.24, B4.11 Date: 03/29/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region March 29, 2012 CX-008403: Categorical Exclusion Determination Multiple Structure Replacement Flaming Gorge to Vernal No. 1 138 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/29/2012 Location(s): Utah Offices(s): Western Area Power Administration-Rocky Mountain Region March 29, 2012 CX-008399: Categorical Exclusion Determination Erosion Control Measures Structure No. 110-3 Dave Johnston to Stegall 230 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/29/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

467

Categorical Exclusion Determinations: Western Area Power  

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

November 23, 2010 November 23, 2010 CX-004887: Categorical Exclusion Determination Cable and Conduit Addition Within the Fenced Area of the Buck Boulevard Substation CX(s) Applied: B4.6 Date: 11/23/2010 Location(s): Riverside County, California Office(s): Western Area Power Administration-Desert Southwest Region November 23, 2010 CX-007129: Categorical Exclusion Determination Buck Boulevard Substation CX(s) Applied: B4.6 Date: 11/23/2010 Location(s): Ripley, California Office(s): Western Area Power Administration-Desert Southwest Region November 5, 2010 CX-004898: Categorical Exclusion Determination Gila-Wellton-Mohawk (Structure Maintenance) CX(s) Applied: B1.3 Date: 11/05/2010 Location(s): Yuma County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region

468

Case Western University | Open Energy Information  

Open Energy Info (EERE)

University University Facility Case Western University Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Case Western University Energy Purchaser Case Western University Location Cleveland OH Coordinates 41.50239055°, -81.60550386° 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":41.50239055,"lon":-81.60550386,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

469

Categorical Exclusion Determinations: Western Area Power  

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

May 2, 2011 May 2, 2011 CX-007145: Categorical Exclusion Determination Empire-Electrical District 5 Double Circuit Upgrade Amendment CX(s) Applied: B1.3 Date: 05/02/2011 Location(s): Pinal County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region April 28, 2011 CX-007144: Categorical Exclusion Determination Empire-Electrical District 5 Double Circuit Upgrade Amendment CX(s) Applied: B1.3 Date: 04/28/2011 Location(s): Pinal County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region April 28, 2011 CX-007132: Categorical Exclusion Determination Casa Grande-Empire Double Circuit Upgrade Amendment CX(s) Applied: B4.13 Date: 04/28/2011 Location(s): Pinal County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region

470

Categorical Exclusion Determinations: Western Area Power  

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

March 11, 2010 March 11, 2010 CX-007156: Categorical Exclusion Determination New Waddell-Raceway-Westwing Structure Replacement CX(s) Applied: B4.6, B4.13 Date: 03/11/2010 Location(s): Maricopa County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region February 18, 2010 CX-007167: Categorical Exclusion Determination Rogers-Coolidge Danger Tree Removal CX(s) Applied: B1.3 Date: 02/18/2010 Location(s): Pinal County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region December 31, 2009 CX-001121: Categorical Exclusion Determination Transmission Line Structure Relocation of Existing Oracle-Tucson 115-kilovolt Transmission Line CX(s) Applied: B4.13 Date: 12/31/2009 Location(s): Pima County, Arizona Office(s): Western Area Power Administration-Desert Southwest Region

471

Western Greenbrier Co-Production Demonstration Project  

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

contacts contacts Brad tomer Director Office of Major Demonstrations National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4692 brad.tomer@netl.doe.gov nelson Rekos Project Manager National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4066 nelson.rekos@netl.doe.gov PaRtIcIPant Western Greenbrier Co-Generation, LLC Lewisburg, WV Western Greenbrier Co-ProduCtion demonstration ProjeCt (disContinued) Project Description The Western Greenbrier Co-Production (WGC) project will generate about 100 megawatts of electricity and commercial quantities of salable ash by-products by burning waste coal presently contained in numerous coal refuse dumps in the vicinity of the plant. These refuse dumps, created by coal cleaning operations over

472

Categorical Exclusion Determinations: Western Area Power  

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

April 1, 2013 April 1, 2013 CX-010106: Categorical Exclusion Determination Flaming Gorge Microwave Site Communications Building Access Road Repairs CX(s) Applied: B1.3 Date: 04/01/2013 Location(s): Utah Offices(s): Western Area Power Administration-Rocky Mountain Region March 26, 2013 CX-010105: Categorical Exclusion Determination Urban Transmission Line Danger Tree Management CX(s) Applied: B1.3 Date: 03/26/2013 Location(s): Colorado, Colorado, Colorado, Colorado, Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region January 23, 2013 CX-009804: Categorical Exclusion Determination Kersey West Switching Station Interconnection Kiowa Creek - Welc 115 Kilovolt Transmission Line CX(s) Applied: B4.1, B4.11 Date: 01/23/2013 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

473

Western Area Power Administration customer database  

SciTech Connect

This report describes a comprehensive customer database compiled by the Pacific Northwest Laboratory (PNL) to assist with analyses conducted as part of the Western Area Power Administration Energy Planning and Management Program Environmental Impact Statement (EIS). The database was used by PNL as a tool to help select a sample of Western customers for potential participation in the Organizational Impacts Analysis case studies, and was used as part of the Utility Impact Analysis to identify sources and costs of auxiliary power. Secondary information sources were used predominantly to compile one year of system related information on the Western customers (over 600) included in the database. This information was useful for its intended purposes; however, year-to-year information may not be consistent across utilities and not all information was available for each utility.

Sandahl, L.J.; Lee, A.D.; Wright, G.A.; Durfee, D.L.

1993-05-01T23:59:59.000Z

474

Western Massachusetts Electric - Commercial Energy Efficiency Rebates |  

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

Western Massachusetts Electric - Commercial Energy Efficiency Western Massachusetts Electric - Commercial Energy Efficiency Rebates Western Massachusetts Electric - Commercial Energy Efficiency Rebates < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Other Heating Heat Pumps Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Pre-approval required for rebates greater than $5,000 Program Info State Massachusetts Program Type Utility Rebate Program Rebate Amount Small Business Program: up to 70% of cost, zero percent financing on remainder Custom: based on energy savings Retrofit Pay-for-Performance Incentive: $0.75/kWh or therm saved Lighting: Varies, see program web site Vending Machine Controls: $45 - $115 Variable Speed Drive (Retrofit): $2,550 - $10,500

475

Categorical Exclusion Determinations: Western Area Power  

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

December 16, 2009 December 16, 2009 CX-000556: Categorical Exclusion Determination Willoby Substation Construction Project-Weld County, Colorado CX(s) Applied: B4.11 Date: 12/16/2009 Location(s): Weld County, Colorado Office(s): Western Area Power Administration-Rocky Mountain Region December 2, 2009 CX-000555: Categorical Exclusion Determination Boysen-Pilot Butte 115-kilovolt Transmission Line Vegetation Management and Access Road Maintenance CX(s) Applied: B1.3 Date: 12/02/2009 Location(s): Fremont County, Wyoming Office(s): Western Area Power Administration-Rocky Mountain Region November 16, 2009 CX-000554: Categorical Exclusion Determination Ogallala Substation KY1A Transformer Replacement CX(s) Applied: B4.6 Date: 11/16/2009 Location(s): Ogallala, Nebraska Office(s): Western Area Power Administration-Rocky Mountain Region

476

The ENSO Teleconnection to the Tropical Atlantic Ocean: Contributions of the Remote and Local SSTs to Rainfall Variability in the Tropical Americas  

Science Conference Proceedings (OSTI)

Recent developments in Tropical Atlantic Variability (TAV) identify the El NioSouthern Oscillation (ENSO) as one of the leading factors in the interannual climate variability of the basin. An ENSO event results in Tropic-wide anomalies in the ...

Alessandra Giannini; John C. H. Chiang; Mark A. Cane; Yochanan Kushnir; Richard Seager

2001-12-01T23:59:59.000Z

477

Properties of tropical convection observed by ARM millimeter-radars  

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

Properties of tropical convection observed by ARM millimeter-radars Properties of tropical convection observed by ARM millimeter-radars Haynes, John Colorado State University Stephens, Graeme Colorado State University Category: Cloud Properties The results of an analysis of tropical cloud systems observed from a variety of vertically pointing radar systems are described. In particular, observations taken during five years of operation of the ARM millimeter wavelength radar system (MMCR) at Manus Island in the Tropical West Pacific region are characterized into cloud classes according to the radar reflectivity structures of these cloud systems, associated rainfall, and surface radiative properties. These observations of cloud properties are composited with respect to various phases of the Madden Julian Oscillation, which is a dominant mode of variability at Manus Island. A method of better

478

Lunty Tropical Fish Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Lunty Tropical Fish Aquaculture Low Temperature Geothermal Facility Lunty Tropical Fish Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Lunty Tropical Fish Aquaculture Low Temperature Geothermal Facility Facility Lunty Tropical Fish Sector Geothermal energy Type Aquaculture Location Buhl, Idaho Coordinates 42.5990714°, -114.7594946° 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":[]}

479

Benefits of Tropical Forest Management Under the New Climate Change  

Open Energy Info (EERE)

Benefits of Tropical Forest Management Under the New Climate Change Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Jump to: navigation, search Name Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Agency/Company /Organization United States Agency for International Development, Global Environment Facility, United Nations Development Programme Sector Land Focus Area Forestry Topics Policies/deployment programs, Background analysis Resource Type Lessons learned/best practices Website http://www.forestcarbonportal. Country Cambodia UN Region South-Eastern Asia References REDD Cambodia Case Study[1] Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Screenshot

480

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

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

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

Note: This page contains sample records for the topic "twp tropical western" 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

Tropical Africa: Land Use, Biomass, and Carbon Estimates for...  

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

80 image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information Analysis Center, U.S....

482

Tropical Africa: Land Use, Biomass, and Carbon Estimates for...  

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

60 image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information Analysis Center, U.S....

483

Tropical Africa: Land Use, Biomass, and Carbon Estimates for...  

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

70 image Brown, S., and G. Gaston. 1996. Tropical Africa: Land Use, Biomass, and Carbon Estimates For 1980. ORNLCDIAC-92, NDP-055. Carbon Dioxide Information Analysis Center, U.S....

484

Spatial Coherence of Tropical Rainfall at the Regional Scale  

Science Conference Proceedings (OSTI)

This study examines the spatial coherence characteristics of daily station observations of rainfall in five tropical regions during the principal rainfall season(s): the Brazilian Nordeste, Senegal, Kenya, northwestern India, and northern ...

Vincent Moron; Andrew W. Robertson; M. Neil Ward; Pierre Camberlin

2007-11-01T23:59:59.000Z

485

Comparisons of Interception Loss from Tropical and Temperate Vegetation Canopies  

Science Conference Proceedings (OSTI)

A multilayer crop model is used to investigate interception loss from oak, pine, wheat and grass canopies. It is shown that the evaporative properties of the full oak canopy are similar to those of the evergreen tropical rain forest. Evaporation ...

J. G. Lockwood; P. J. Sellers

1982-10-01T23:59:59.000Z

486

Simulation of Tropical Climate with a Linear Primitive Equation Model  

Science Conference Proceedings (OSTI)

The tropical climate simulated with a new global atmosphere model is presented. The model is purposely designed for climate studies and is still under development. It is designed to bridge the gap between very efficient but simple models of the ...

Richard Seager; Stephen E. Zebiak

1995-10-01T23:59:59.000Z

487

The Tropical Rainfall Measuring Mission (TRMM) Sensor Package  

Science Conference Proceedings (OSTI)

This note is intended to serve primarily as a reference guide to users wishing to make use of the Tropical Rainfall Measuring Mission data. It covers each of the three primary rainfall instruments: the passive microwave radiometer, the ...

Christian Kummerow; William Barnes; Toshiaki Kozu; James Shiue; Joanne Simpson

1998-06-01T23:59:59.000Z

488

Weak Simulated Extratropical Responses to Complete Tropical Deforestation  

Science Conference Proceedings (OSTI)

The Geophysical Fluid Dynamics Laboratory atmosphereland model version 2 (AM2/LM2) coupled to a 50-m-thick slab ocean model has been used to investigate remote responses to tropical deforestation. Magnitudes and significance of differences ...

Kirsten L. Findell; Thomas R. Knutson; P. C. D. Milly

2006-06-01T23:59:59.000Z

489

Control of the Tropical Tropopause and Vertical Transport across It  

Science Conference Proceedings (OSTI)

A 3D primitive equation model is used to investigate how the tropical tropopause is influenced by cumulus convection in the troposphere and mean upwelling in the stratosphere. The model simulates the residual mean circulation explicitly, whereas ...

Murry Salby; Patrick Callaghan

2004-03-01T23:59:59.000Z

490

On the Relationship between Tropical Convection and Sea Surface Temperature  

Science Conference Proceedings (OSTI)

Tropical observations show convective activity increasing sharply above sea surface temperatures (SSTs) of around 26C and then decreasing as the SST exceeds 30C, with maximum observed SSTs of around 32C.Although some aspects of this ...

Adrian M. Tompkins

2001-03-01T23:59:59.000Z

491

Variations in the Tropical Greenhouse Effect during El Nio  

Science Conference Proceedings (OSTI)

Observations of the clear-sky outgoing longwave radiation and sea surface temperature are combined to examine the evolution of the tropical greenhouse effect from colder La Nia conditions in early 1985 to warmer El Nio conditions in late 1987. ...

Brian J. Soden

1997-05-01T23:59:59.000Z

492

Quantifying Environmental Drivers of Future Tropical Forest Extent  

Science Conference Proceedings (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

493

Global Warming and the Weakening of the Tropical Circulation  

Science Conference Proceedings (OSTI)

This study examines the response of the tropical atmospheric and oceanic circulation to increasing greenhouse gases using a coordinated set of twenty-first-century climate model experiments performed for the Intergovernmental Panel on Climate ...

Gabriel A. Vecchi; Brian J. Soden

2007-09-01T23:59:59.000Z

494

Mechanisms of Remote Tropical Surface Warming during El Nio  

Science Conference Proceedings (OSTI)

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

John C. H. Chiang; Benjamin R. Lintner

2005-10-01T23:59:59.000Z

495

Modeling Study of a Tropical Squall-Type Convective Line  

Science Conference Proceedings (OSTI)

A multidimensional and time-dependent cloud scale model is used to investigate the dynamic and micro-physical processes associated with convective and stratiform regions within a tropical squall-type convective line. The evolution of the total ...

Wei-Kuo Tao; Joanne Simpson

1989-01-01T23:59:59.000Z

496

Estimating Local Memory of Tropical Cyclones through MPI Anomaly Evolution  

Science Conference Proceedings (OSTI)

This study examines the local memory of atmospheric and oceanic changes associated with a tropical cyclone (TC). The memory is quantified through anomalous maximum potential intensity (MPI) evolution for 20 days prior to the arrival of a TC ...

Robert E. Hart; Ryan N. Maue; Michael C. Watson

2007-12-01T23:59:59.000Z

497

On Estimates of Historical North Atlantic Tropical Cyclone Activity  

Science Conference Proceedings (OSTI)

In this study, an estimate of the expected number of Atlantic tropical cyclones (TCs) that were missed by the observing system in the presatellite era (between 1878 and 1965) is developed. The significance of trends in both number and duration ...

Gabriel A. Vecchi; Thomas R. Knutson

2008-07-01T23:59:59.000Z

498

Convective Storm Initiation in a Moist Tropical Environment  

Science Conference Proceedings (OSTI)

Radar and satellite data from the Tropical Rainfall Measuring MissionLarge-Scale BiosphereAtmosphere (TRMMLBA) project have been examined to determine causes for convective storm initiation in the southwest Amazon region. The locations and ...

Maria Andrea Lima; James W. Wilson

2008-06-01T23:59:59.000Z

499

Thermodynamic Environments of Deep Convection in Atlantic Tropical Disturbances  

Science Conference Proceedings (OSTI)

Conditional composites of dropsondes deployed into eight tropical Atlantic weather systems during 2010 are analyzed. The samples are conditioned based on cloud-top temperature within 10 km of the dropsonde, the radius from the cyclonic circulation ...

Christopher A. Davis; David A. Ahijevych

2013-07-01T23:59:59.000Z

500

Climatology of Tropical Intraseasonal Convective Anomalies: 19792002  

Science Conference Proceedings (OSTI)

Tropical intraseasonal convective anomalies (TICA) have a central role in subseasonal changes in the coupled oceanatmosphere system, but the climatology of TICA events has not been properly documented. This study exploits 24 years of outgoing ...

Charles Jones; Leila M. V. Carvalho; R. Wayne Higgins; Duane E. Waliser; J-K. E. Schemm

2004-02-01T23:59:59.000Z