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


1

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

2

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

3

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...

4

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.

5

Western North Pacific Tropical Cyclone Intensity and ENSO  

Science Conference Proceedings (OSTI)

The influence of the El Niño–Southern 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

6

The 30–60-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 30–60-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

7

2–3-Day Convective Variability in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

This paper is an examination of 2–3-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

8

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 May–September 1989–91. A ...

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

1996-10-01T23:59:59.000Z

9

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

10

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

11

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

12

Inactive Period of Western North Pacific Tropical Cyclone Activity in 1998–2011  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 1960–2011, 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

13

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

14

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

15

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

16

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

17

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

18

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

19

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

20

Spatially Inhomogeneous Trends of Tropical Cyclone Intensity over the Western North Pacific for 1977–2010  

Science Conference Proceedings (OSTI)

The spatial distribution of trends in tropical cyclone (TC) intensity over the western North Pacific Ocean (WNP) during the period 1977–2010 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

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


21

Mesoscale 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 1999–2004 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

22

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 1990–2001 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

23

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

24

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

25

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

26

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

27

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

28

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 1993–2009 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

29

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

30

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

31

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

32

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

33

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

34

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 (June–September) for the period of 1979–2006. The number of MTC events ranged from one to eight per year, ...

Jianyun Gao; Tim Li

2011-03-01T23:59:59.000Z

35

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

36

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

37

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 Niño 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 Niño years, TS genesis locations are generally shifted to the ...

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

38

Systematic Variation of Summertime Tropical Cyclone Activity in the Western North Pacific in Relation to the Madden–Julian 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 Madden–Julian 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

39

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

40

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

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

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

42

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

Science Conference Proceedings (OSTI)

The present study investigates the transition from mixed Rossby–gravity (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

43

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

Science Conference Proceedings (OSTI)

NCEP–NCAR 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

44

Tropical Convection on 7–21-Day Timescales over the Western Pacific  

Science Conference Proceedings (OSTI)

Evidence is presented to demonstrate that the oscillations of convection on 7–21-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

45

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

46

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 July–November for the period 1979–2007. It is shown that the TC activity ...

Liang Wu; Zhiping Wen; Ronghui Huang; Renguang Wu

2012-01-01T23:59:59.000Z

47

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 (850–300 hPa) wind and temperature on climatological time scales is assessed, based on data from 59 radiosonde stations in the western tropical Pacific during 1979–2004. ...

Robert J. Allen; Steven C. Sherwood

2007-11-01T23:59:59.000Z

48

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 Niño–Southern Oscillation (ENSO) and tropical storm (TS) activity over the western North Pacific Ocean is examined for the period from 1981 to 2010. In El Niño 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

49

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

50

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 Niño 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

51

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 1979–94. 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 (June–August) 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 north–south 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 (September–November), there is no clear relationship between the north–south 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

52

Hindcast/Forecast of ENSO Events Based upon the Redistribution of Observed and Model Heat Content in the Western Tropical Pacific, 1964–86  

Science Conference Proceedings (OSTI)

The redistribution of observed upper-ocean heat content in the western tropical North Pacific for the four-year period 1979–82 was shown by Pazan et al. to provide a qualitative hindcast capability for the 1982–83 ENSO event. A related study (...

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

1987-02-01T23:59:59.000Z

53

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

54

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

55

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, Madden–Julian oscillation (MJO), equatorial Rossby (...

Guanghua Chen; Chia Chou

2014-01-01T23:59:59.000Z

56

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 30–60-day Madden–Julian oscillation (MJO) and the 10–20-day quasi-...

Richard C. Y. Li; Wen Zhou

2013-05-01T23:59:59.000Z

57

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

58

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

59

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 (June–September) developing and nondeveloping disturbances for tropical cyclone (TC) ...

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

2012-04-01T23:59:59.000Z

60

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 30–60-day Madden–Julian oscillation (MJO) and the 10–20-day quasi-biweekly oscillation (...

Richard C. Y. Li; Wen Zhou

2013-05-01T23:59:59.000Z

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


61

A 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 program’s Coupled Ocean–Atmosphere 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

62

Short-Term Climatic Variability in the Volume Budget of the Western Tropical North Pacific Ocean during 1979–82  

Science Conference Proceedings (OSTI)

Anomalous 14°C isotherm depth and anomalous geostrophic volume transport above the 14°C 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

63

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

Science Conference Proceedings (OSTI)

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

Thierry Delcroix; Gerard Eldin; Christian Hénin

1987-12-01T23:59:59.000Z

64

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

65

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

66

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

67

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

68

A Comparison of VHF Wind Profiler Observations and the NCEP–NCAR Reanalysis over the Tropical Pacific  

Science Conference Proceedings (OSTI)

VHF wind profiler measurements of zonal and meridional winds are compared with the NCEP–NCAR 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

69

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

70

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 Niño–Southern Oscillation (ENSO) is investigated by separating TC vortices from reanalysis ...

Yao Ha; Zhong Zhong; Yimin Zhu; Yijia Hu

2013-04-01T23:59:59.000Z

71

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

Science Conference Proceedings (OSTI)

Variations in the seasonal mean (July–October) 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

72

Upper-Ocean Heat Budget in Response to the Madden–Julian Oscillation in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

The upper-ocean heat budget in response to the atmospheric Madden–Julian 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

73

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

74

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

75

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

76

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 Ocean–Atmosphere 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

77

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

78

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

79

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

80

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 "tropical western pacific" 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

The Combined Sensor Program: An Air–Sea 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

82

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

83

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

84

Western North Pacific Typhoons with Concentric Eyewalls  

Science Conference Proceedings (OSTI)

This study examines the intensity change and moat dynamics of typhoons with concentric eyewalls using passive microwave data and best-track data in the western North Pacific between 1997 and 2006. Of the 225 typhoons examined, 55 typhoons and 62 ...

Hung-Chi Kuo; Chih-Pei Chang; Yi-Ting Yang; Hau-Jang Jiang

2009-11-01T23:59:59.000Z

85

Relative Controls of Asian–Pacific Summer Climate by Asian Land and Tropical–North Pacific Sea Surface Temperature  

Science Conference Proceedings (OSTI)

The dominant pattern of summertime tropical and North Pacific sea surface temperature (SST) is characterized by an out-of-phase relationship between the tropics and the extratropics. This pattern, defined as the tropical–North Pacific mode (TNPM) ...

Ping Zhao; Song Yang; Maoqiu Jian; Junming Chen

2011-08-01T23:59:59.000Z

86

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

87

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

88

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

Science Conference Proceedings (OSTI)

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

Yan Du; Lei Yang; Shang-Ping Xie

2011-01-01T23:59:59.000Z

89

Generalized Inversion of Tropical Atmosphere–Ocean 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 Atmosphere–Ocean array (TAO) measures the ...

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

1998-07-01T23:59:59.000Z

90

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

Science Conference Proceedings (OSTI)

Direct current measurements (0–600 m; re. 600 m) were carried out every six months from January 1984 to June 1986 in the western tropical Pacific Ocean (165°E) from 20°S to 10°N. The Equatorial Intermediate Current (EIC) occurred beneath the ...

Thierry Delcroix; Christian Henin

1988-02-01T23:59:59.000Z

91

Numerical Simulation of Atmospheric Response to Pacific Tropical Instability Waves  

Science Conference Proceedings (OSTI)

Tropical instability waves (TIWs) are 1000-km-long waves that appear along the sea surface temperature (SST) front of the equatorial cold tongue in the eastern Pacific. The study investigates the atmospheric planetary boundary layer (PBL) ...

R. Justin Small; Shang-Ping Xie; Yuqing Wang

2003-11-01T23:59:59.000Z

92

El Niño and Tropical Pacific Ocean Surface Temperatures  

Science Conference Proceedings (OSTI)

The spatial and temporal character of El Niño is explored with analyses of tropical Pacific Ocean surface temperatures for the period 1957–76. The data are derived from approximately 5×106 marine weather reports. Maps are illustrated which ...

Bryan C. Weare

1982-01-01T23:59:59.000Z

93

Surface Winds from Tropical Pacific Islands—Climatological Statistics  

Science Conference Proceedings (OSTI)

Multidecadal time series of surface wind observations from tropical Pacific islands have been examined in order to investigate the space and time scales of variability. Climatological monthly means and variances are compared with comparable means ...

D. E. Harrison; D. S. Luther

1990-02-01T23:59:59.000Z

94

Improving Tropical Cyclone Intensity Guidance in the Eastern North Pacific  

Science Conference Proceedings (OSTI)

The primary objective of this research is the development of a statistical model that will provide tropical cyclone (TC) intensity guidance for the eastern North Pacific (ENP) superior to that provided by climatology and persistence models. ...

Kevin R. Petty; Jay S. Hobgood

2000-04-01T23:59:59.000Z

95

Simulation of the Seasonal Cycle of the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

In a general circulation model of the tropical Pacific Ocean forced with climatological seasonally varying winds, equatorial upwelling and downwelling in adjacent latitudes play central roles in closing the oceanic circulation. The transport of ...

S. G. H. Philander; W. J. Hurlin; A. D. Seigel

1987-11-01T23:59:59.000Z

96

On the Annual Cycle in the Tropical Eastern Central Pacific  

Science Conference Proceedings (OSTI)

In the tropical eastern central Pacific Ocean, the annual cycle in sea surface temperature (SST), surface winds and pressure, and clouds are alternatively dominated by an antisymmetric (with respect to the equator) monsoonal mode in February and ...

Bin Wang

1994-12-01T23:59:59.000Z

97

An Intermediate Model of the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

An intermediate tropical Pacific Ocean model is developed to bridge the gap between anomaly models of El Niño and ocean general circulation models. The model contains essential physics for reproducing both the annual and interannual variations of ...

Bin Wang; Tianming Li; Ping Chang

1995-07-01T23:59:59.000Z

98

Observed Interaction between Pacific Sea Ice and the Western Pacific Pattern on Intraseasonal Time Scales  

Science Conference Proceedings (OSTI)

The relationship between North Pacific sea ice and the Western Pacific (WP) pattern is examined using wintertime observational data between 1978 and 2008. Weekly averaged data are chosen to capture the characteristically short time scale of the ...

N. Joss Matthewman; Gudrun Magnusdottir

2011-10-01T23:59:59.000Z

99

YELWWFIN TUNA, THUNNUS ALBACARES, CATCH RATES IN THE WESTERN PACIFIC  

E-Print Network (OSTI)

YELWWFIN TUNA, THUNNUS ALBACARES, CATCH RATES IN THE WESTERN PACIFIC TOM POLACHECKl ABSTRACf The surface fishery for yellowfin tuna, ThtwnU8 albac(~res, in the western Pacific has increased drama and time period indicated no relation between them and suggests that the yellowfin tuna stocks

100

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

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

A Southwest Pacific Tropical Cyclone Climatology and Linkages to the El Niño–Southern Oscillation  

Science Conference Proceedings (OSTI)

The new South Pacific Enhanced Archive for Tropical Cyclones (SPEArTC) dataset provides an opportunity to develop a more complete climatology of tropical cyclones (TCs) in the southwest Pacific. Here, spatial patterns and characteristics of TCs ...

Howard J. Diamond; Andrew M. Lorrey; James A. Renwick

2013-01-01T23:59:59.000Z

102

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 [September–October–...

Vasubandhu Misra

2004-02-01T23:59:59.000Z

103

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

104

Modulation of North Pacific Tropical Cyclone Activity by Three Phases of ENSO  

Science Conference Proceedings (OSTI)

Tropical Pacific Ocean warming has been separated into two modes based on the spatial distribution of the maximum sea surface temperature (SST) anomaly: an east Pacific warming (EPW) and a central Pacific warming (CPW). When combined with east ...

Hye-Mi Kim; Peter J. Webster; Judith A. Curry

2011-03-01T23:59:59.000Z

105

Time and Space Variability of Tropical Pacific Wind Stress  

Science Conference Proceedings (OSTI)

The results of a spectral analysis of a new, subjectively analyzed data set of tropical Pacific wind stress are presented. The monthly data for the 10-year period, 1961–70, allow a detailed inspection of the distributions of frequency and zonal ...

Stanley B. Goldenberg; James J. O'Brien

1981-06-01T23:59:59.000Z

106

Predictability of Drifter Trajectories in the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

Predictability of particle motion in the ocean over a timescale of one week is studied using three clusters of buoys consisting of 5–10 drifters deployed in the tropical Pacific Ocean. The analysis is conducted by using three techniques with ...

Tamay M. Özgökmen; Leonid I. Piterbarg; Arthur J. Mariano; Edward H. Ryan

2001-09-01T23:59:59.000Z

107

The Bottom Boundary Layer in the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

Vertical and horizontal structure of near-bottom currents at two locations in the eastern tropical Pacific (9°26?N, 151°17?W; 14°38?N, 125°29?W) have been studied. Low-frequency currents at these sites, located in a region of abyssal hills, ...

S. P. Hayes

1980-03-01T23:59:59.000Z

108

Mesoscale Convective Complexes in the Western Pacific Region  

Science Conference Proceedings (OSTI)

A climatological study of mesoscale convective complexes (MCCs) during 1983–1985 over the western Pacific region (WPR), using full-disc, enhanced infrared satellite imagery from the Japanese Geostationary Meteorological Satellite is presented.

David Miller; J. M. Fritsch

1991-12-01T23:59:59.000Z

109

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

110

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 (>29°C) water found in the western tropical Pacific Ocean plays an important role in the coupled ocean-atmosphere dynamics and thermodynamics associated with the El Niño-Southern Oscillation phenomenon. Thus, it is ...

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

1996-12-01T23:59:59.000Z

111

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

112

El Niño: An Approach Towards Equilibrium Temperature in the Tropical Eastern Pacific  

Science Conference Proceedings (OSTI)

A different view of El Niño is proposed, namely, that it represents an approach towards the tropical equilibrium temperature of approximately 30°C, set essentially by evaporation, by the waters of the eastern tropical Pacific.

Reginald E. Newell

1986-07-01T23:59:59.000Z

113

Oscillatory Climate Modes in the Indian Monsoon, North Atlantic and Tropical Pacific  

Science Conference Proceedings (OSTI)

This paper explores the three-way interactions between the Indian monsoon, the North Atlantic and the Tropical Pacific. Four climate records were analyzed: the monsoon rainfall in two Indian regions, the Southern Oscillation Index for the Tropical ...

Yizhak Feliks; Andreas Groth; Andrew W. Robertson; Michael Ghil

114

On the Annual Cycle of the Tropical Pacific Atmosphere and Ocean  

Science Conference Proceedings (OSTI)

The annual cycle in sea surface temperature (SST), surface wind and other atmospheric variables in the tropical Pacific are described. The primary data sets of SST and surface wind are derived from ship observations in the Pacific between 29°N ...

John D. Horel

1982-12-01T23:59:59.000Z

115

Fishery Effects on Dolphins Targeted by Tuna Purse-seiners in the Eastern Tropical Pacific Ocean  

E-Print Network (OSTI)

nursing dolphin calves in a tuna purse-seine fishery. MarineStenella attenuata, in Tuna Purse Seine Nets. Fisheryeastern tropical Pacific tuna fishery. Administrative Report

Edwards, Elizabeth F

2007-01-01T23:59:59.000Z

116

Abyssal Eddy Kinetic Energy Levels in the Western North Pacific  

Science Conference Proceedings (OSTI)

An earlier observation of about 50 cm2 s?2 for the maximum abyssal (4000 m depth) eddy kinetic energy (KE) in the western North Pacific along 152°E, occurring in the vicinity of the Kuroshio Extension, is now supported by nearly two years of ...

Willeam J. Schmitz Jr.

1984-01-01T23:59:59.000Z

117

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

Science Conference Proceedings (OSTI)

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

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

2013-09-01T23:59:59.000Z

118

Processes Controlling the Mean Tropical Pacific Precipitation Pattern. Part I: The Andes and the Eastern Pacific ITCZ  

Science Conference Proceedings (OSTI)

The question of why the intertropical convergence zone (ITCZ) is generally north of the equator in the tropical Pacific is addressed. Experiments with an atmospheric general circulation model coupled to idealized representations of the ocean show ...

Ken Takahashi; David S. Battisti

2007-07-01T23:59:59.000Z

119

Pacific Interdecadal Climate Variability: Linkages between the Tropics and the North Pacific during Boreal Winter since 1900  

Science Conference Proceedings (OSTI)

This study examines the tropical linkages to interdecadal climate fluctuations over the North Pacific during boreal winter through a comprehensive and physically based analysis of a wide variety of observational datasets spanning the twentieth ...

Clara Deser; Adam S. Phillips; James W. Hurrell

2004-08-01T23:59:59.000Z

120

Diurnal Characteristics of Precipitation Features over the Tropical East Pacific: A Comparison of the EPIC and TEPPS Regions  

Science Conference Proceedings (OSTI)

This study examines the diurnal cycle of precipitation features in two regions of the tropical east Pacific where field campaigns [the East Pacific Investigation of Climate Processes in the Coupled Ocean–Atmosphere System (EPIC) and the Tropical ...

R. Cifelli; S. W. Nesbitt; S. A. Rutledge; W. A. Petersen; S. Yuter

2008-08-01T23:59:59.000Z

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

Pacific Decadal Variability: The Tropical Pacific Mode and the North Pacific Mode  

Science Conference Proceedings (OSTI)

Pacific decadal variability is studied in a series of coupled global ocean–atmosphere simulations aided by two “modeling surgery” strategies: partial coupling (PC) and partial blocking (PB). The PC experiments retain full ocean–atmosphere ...

L. Wu; Z. Liu; R. Gallimore; R. Jacob; D. Lee; Y. Zhong

2003-04-01T23:59:59.000Z

122

Eddy formation and propagation in the eastern tropical Pacific  

E-Print Network (OSTI)

Observations of eddies in the eastern tropical Pacific from TOPEX altimetry data show that there are seasonal and interannual variations in eddy activity. Comparisons between time of eddy formation and corresponding wind data show that not all eddies are caused by winds blowing offshore from the coast of Central America. Plots of eddy tracks from TOPEX data show that some of these eddies last for over 6 months and travel more than 250 of longitude toward the west. Others go more towards the equator and dissipate quickly. A General Circulation Model is used to study the formation and propagation aspects of these eddies. Results from experiments exploring the formation mechanism show that high frequency wind bursts are sufficient but not necessary for eddy formation in the eastern tropical Pacific. Eddy activity remains almost the same if only the annual harmonic of the wind field is used to force the model. Forcing the model with only the high frequency wind component produces almost no eddies. The formation of eddies during periods of weak offshore winds suggests other possible mechanisms, such as unstable mean flows, for the formation of the eddies. Experiments done to study the propagation of the eddies show that the eddies are greatly affected by the structure of the background flow. Eddies formed in September or October encounter a strong westward flowing current and do not dissipate rapidly. These eddies do not travel south beyond the region of shear between the currents. They last for more than 6 months and travel westward for more than 250 of longitude. Eddies formed in March and April encounter a strong eastward flow dissipate quickly and propagate towards the equator where they disappear. These eddies last for less than four months and cover less than 150 of longitude. Eddies generated in January show properties between these two extreme cases.

Jhingran, Vikas Gopal

1997-01-01T23:59:59.000Z

123

A Systemic Analysis of Multiscale Deep Convective Variability over the Tropical Pacific  

Science Conference Proceedings (OSTI)

The multiscale tropical deep convective variability over the Pacific Ocean is examined with the 4-month high-resolution deep convection index (ITBB) derived from satellite imagery. With a systemic view, the complex phenomenon is described with ...

Wen-wen Tung; Mitchell W. Moncrieff; Jian-Bo Gao

2004-07-01T23:59:59.000Z

124

The Aleutian Low in January and February—Relation to Tropical Pacific Sea Surface Temperature  

Science Conference Proceedings (OSTI)

The mean characteristics of the Aleutian low in January and February are compared. The comparison is made separately for years when the tropical Pacific sea surface temperature (SST) was anomalously high, and when the SST was low. It was found ...

Sigmund Fritz

1985-02-01T23:59:59.000Z

125

Simulation of the 1976/77 Climate Transition over the North Pacific: Sensitivity to Tropical Forcing  

Science Conference Proceedings (OSTI)

This study examines the contribution of tropical sea surface temperature (SST) forcing to the 1976/77 climate transition of the winter atmospheric circulation over the North Pacific using a combined observational and modeling approach. The ...

Clara Deser; Adam S. Phillips

2006-12-01T23:59:59.000Z

126

Interannual Variation in Net Heating at the Surface of the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

Interannual variations of net surface heating of the tropical Pacific Ocean are analyzed for the period 1957–76. Special emphasis is given to exploring the relationship between these variations and those in sea temperature associated with El Niño/...

Bryan C. Weare

1983-05-01T23:59:59.000Z

127

A Regional Ocean–Atmosphere Model for Eastern Pacific Climate: Toward Reducing Tropical Biases  

Science Conference Proceedings (OSTI)

The tropical Pacific Ocean is a climatically important region, home to El Niño and the Southern Oscillation. The simulation of its climate remains a challenge for global coupled ocean–atmosphere models, which suffer large biases especially in ...

Shang-Ping Xie; Toru Miyama; Yuqing Wang; Haiming Xu; Simon P. de Szoeke; R. Justin O. Small; Kelvin J. Richards; Takashi Mochizuki; Toshiyuki Awaji

2007-04-01T23:59:59.000Z

128

Long-Lead Forecasts of Seasonal Precipitation in the Tropical Pacific Islands Using CCA  

Science Conference Proceedings (OSTI)

A potentially operational system for 3-month total precipitation forecasts for island stations in the tropical Pacific has been developed at NOAA's Climate Prediction Center using the statistical method of canonical correlation analysis (CCA). ...

Yuxiang He; Anthony G. Barnston

1996-09-01T23:59:59.000Z

129

Freshwater Flux (FWF)-Induced Oceanic Feedback in a Hybrid Coupled Model of the Tropical Pacific  

Science Conference Proceedings (OSTI)

The impacts of freshwater flux (FWF) forcing on interannual variability in the tropical Pacific climate system are investigated using a hybrid coupled model (HCM), constructed from an oceanic general circulation model (OGCM) and a simplified ...

Rong-Hua Zhang; Antonio J. Busalacchi

2009-02-01T23:59:59.000Z

130

Long-Lead Seasonal Temperature and Precipitation Prediction Using Tropical Pacific SST Consolidation Forecasts  

Science Conference Proceedings (OSTI)

Objective seasonal forecasts of temperature and precipitation for the conterminous United States are produced using tropical Pacific sea surface temperature forecasts for the Niño-3.4 region in conjunction with composites of observed temperature ...

R. W. Higgins; H-K. Kim; D. Unger

2004-09-01T23:59:59.000Z

131

A Vortex-Based Perspective of Eastern Pacific Tropical Cyclone Formation  

Science Conference Proceedings (OSTI)

Tropical cyclone formation over the eastern Pacific during 2005 and 2006 was examined using primarily global operational analyses from the National Centers for Environmental Prediction. This paper represents a “vortex view” of genesis, adding to ...

Christopher Davis; Chris Snyder; Anthony C. Didlake Jr.

2008-07-01T23:59:59.000Z

132

Statistical Relations between Ocean/Atmosphere Fluctuations in the Tropical Pacific  

Science Conference Proceedings (OSTI)

Advanced statistical techniques have been used to conduct a study of the relationships between ocean and atmosphere variables in the tropical Pacific Ocean. The results of the study show that the ocean variables can hindcast features of the trade ...

T. P. Barnett

1981-08-01T23:59:59.000Z

133

Lightning Flash Rates as an Indicator of Tropical Cyclone Genesis in the Eastern North Pacific  

Science Conference Proceedings (OSTI)

Lightning flashes in convective tropical clusters of the eastern North Pacific Ocean are detected by the Long-Range Lightning Detection Network and are analyzed for temporal patterns in electrical activity. The rates of lightning flash discharge ...

Lesley A. Leary; Elizabeth A. Ritchie

2009-10-01T23:59:59.000Z

134

Empirical Orthogonal Function Analysis of Wind Vectors over the Tropical Pacific Region  

Science Conference Proceedings (OSTI)

The method of empirical orthogonal function analysis is applied to wind stress vectors over the tropical Pacific Ocean from 1961 through 1978. It is determined that this vector analysis enables a more thorough analysis of wind components than do ...

David M. Legler

1983-03-01T23:59:59.000Z

135

Seasonal Diagnostic and Predictability of Rainfall in Subtropical South America Based on Tropical Pacific SST  

Science Conference Proceedings (OSTI)

The seasonality of the simultaneous relationship between tropical Pacific SST and rainfall, as well as rainfall predictability one season in advance in subtropical South America (25°–40°S), is studied using different multivariate techniques. This ...

Aldo Montecinos; Alvaro Díaz; Patricio Aceituno

2000-02-01T23:59:59.000Z

136

Volcanic and Solar Forcing of the Tropical Pacific over the Past 1000 Years  

Science Conference Proceedings (OSTI)

The response of El Niño to natural radiative forcing changes over the past 1000 yr is investigated based on numerical experiments employing the Zebiak–Cane model of the tropical Pacific coupled ocean–atmosphere system. Previously published ...

Michael E. Mann; Mark A. Cane; Stephen E. Zebiak; Amy Clement

2005-02-01T23:59:59.000Z

137

Accuracy of Atlantic and Eastern North Pacific Tropical Cyclone Intensity Forecast Guidance  

Science Conference Proceedings (OSTI)

Five statistical and dynamical tropical cyclone intensity guidance techniques available at the National Hurricane Center (NHC) during the 2003 and 2004 Atlantic and eastern North Pacific seasons were evaluated within three intensity phases: (I) ...

Russell L. Elsberry; Tara D. B. Lambert; Mark A. Boothe

2007-08-01T23:59:59.000Z

138

EPIC2001 and the Coupled Ocean–Atmosphere System of the Tropical East Pacific  

Science Conference Proceedings (OSTI)

Coupled global ocean–atmosphere models currently do a poor job of predicting conditions in the tropical east Pacific, and have a particularly hard time reproducing the annual cycle in this region. This poor performance is probably due to the ...

David J. Raymond; Steven K. Esbensen; Clayton Paulson; Michael Gregg; Christopher S. Bretherton; Walter A. Petersen; Robert Cifelli; Lynn K. Shay; Carter Ohlmann; Paquita Zuidema

2004-09-01T23:59:59.000Z

139

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

Science Conference Proceedings (OSTI)

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

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

2010-05-01T23:59:59.000Z

140

A Model of Rossby Waves Linked to Submonthly Convection over the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

Equatorward-propagating wave trains in the upper troposphere are observed to be associated with deep convection over the eastern tropical Pacific on the submonthly timescale during northern winter. The convection occurs in the regions of ascent ...

Adrian J. Matthews; George N. Kiladis

2000-12-01T23:59:59.000Z

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

Relationships between Monthly Precipitation and SST Variations in the Tropical Pacific Region  

Science Conference Proceedings (OSTI)

The relationships between the patterns of monthly sea surface temperature (SST) variations and those of precipitation in the tropical Pacific Ocean region are examined. The rainfall data utilized are derived from satellite observations of ...

Bryan C. Weare

1987-11-01T23:59:59.000Z

142

Midsummer Gap Winds and Low-Level Circulation over the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

The low-level seasonal and intraseasonal wind variability over the northeastern tropical Pacific (NETP), its relationship with other variables, and the connection with large- and middle-scale atmospheric patterns are analyzed using a suite of ...

Rosario Romero-Centeno; Jorge Zavala-Hidalgo; G. B. Raga

2007-08-01T23:59:59.000Z

143

Intercomparison of Targeted Observation Guidance for Tropical Cyclones in the Northwestern Pacific  

Science Conference Proceedings (OSTI)

This study compares six different guidance products for targeted observations over the northwest Pacific Ocean for 84 cases of 2-day forecasts in 2006 and highlights the unique dynamical features affecting the tropical cyclone (TC) tracks in this ...

Chun-Chieh Wu; Jan-Huey Chen; Sharanya J. Majumdar; Melinda S. Peng; Carolyn A. Reynolds; Sim D. Aberson; Roberto Buizza; Munehiko Yamaguchi; Shin-Gan Chen; Tetsuo Nakazawa; Kun-Hsuan Chou

2009-08-01T23:59:59.000Z

144

Scales of Variability in the Equatorial Pacific Inferred form Tropical Atmosphere-Ocean Buoy Array  

Science Conference Proceedings (OSTI)

The highly temporally resolved time series from the Tropical Atmosphere-Ocean moored buoy array are used to evaluate the scales of thermal variability in the upper equatorial Pacific. The TAO array consists of nearly 70 deep-ocean moorings ...

William S. Kessler; M. C. Spillane; Michael J. McPhaden; D. E. Harrison

1996-12-01T23:59:59.000Z

145

The Role of the “Atmospheric Bridge” in Linking Tropical Pacific ENSO Events to Extratropical SST Anomalies  

Science Conference Proceedings (OSTI)

The role of the atmospheric circulation as a “bridge” between sea surface temperature (SST) anomalies in the tropical Pacific and those in the midlatitude northern oceans is assessed. The key processes associated with this atmospheric bridge are ...

Ngar-Cheung Lau; Mary Jo Nath

1996-09-01T23:59:59.000Z

146

A Bayesian Regression Approach for Predicting Seasonal Tropical Cyclone Activity over the Central North Pacific  

Science Conference Proceedings (OSTI)

In this study, a Poisson generalized linear regression model cast in the Bayesian framework is applied to forecast the tropical cyclone (TC) activity in the central North Pacific (CNP) in the peak hurricane season (July–September) using large-...

Pao-Shin Chu; Xin Zhao

2007-08-01T23:59:59.000Z

147

The influence of tropical Pacific SST anomaly on surface air temperature in China  

Science Conference Proceedings (OSTI)

The influence of the tropical Pacific sea surface temperature (SST) on the wintertime surface air temperature (SAT) in China is investigated using both the observational data and the output of coupled ocean-atmosphere numerical models during the ...

XiaoJing Jia; Hai Lin; Xia Yao

148

The Coupling of the Annual Cycle and ENSO Over the Tropical Pacific  

Science Conference Proceedings (OSTI)

In the tropical Pacific, the annual variation of sea surface temperature (SST) consists of two distinct components with respect to the equator, 1) an antisymmetric extratropical annual cycle and 2) a symmetric equatorial annual cycle (SEAC). The ...

X. L. Wang

1994-04-01T23:59:59.000Z

149

Intraseasonal Modulation of the North Pacific Storm Track by Tropical Convection in Boreal Winter  

Science Conference Proceedings (OSTI)

The modulation of the North Pacific storm track by tropical convection on intraseasonal time scales (30–90 days) in boreal winter (December–March) is investigated using the NCEP–NCAR reanalysis and NOAA satellite outgoing longwave radiation (OLR) ...

Yi Deng; Tianyu Jiang

2011-02-01T23:59:59.000Z

150

Bayesian Change-Point Analysis of Tropical Cyclone Activity: The Central North Pacific Case  

Science Conference Proceedings (OSTI)

Bayesian analysis is applied to detect change points in the time series of annual tropical cyclone counts over the central North Pacific. Specifically, a hierarchical Bayesian approach involving three layers—data, parameter, and hypothesis—is ...

Pao-Shin Chu; Xin Zhao

2004-12-01T23:59:59.000Z

151

Case Studies of Tropical Cyclones and Phytoplankton Blooms over Atlantic and Pacific Regions  

Science Conference Proceedings (OSTI)

This study investigates phytoplankton blooms following the passage of Tropical Cyclones in the Atlantic and Pacific Ocean Basins. The variables of sea surface temperature (SST), chlorophyll (Chl-a), precipitation, and storm surface winds were ...

Ashley M. Merritt-Takeuchi; Sen Chiao

152

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

153

A Mechanism for Abrupt Climate Change Associated with Tropical Pacific SSTs  

Science Conference Proceedings (OSTI)

The tropical Pacific’s response to transiently increasing atmospheric CO2 is investigated using three ensemble members from a numerically efficient, coupled atmosphere–ocean GCM. The model is forced with a 1% yr?1 increase in CO2 for 110 yr, when ...

Steve Vavrus; Michael Notaro; Zhengyu Liu

2006-01-01T23:59:59.000Z

154

The Annual Cycle of SST in the Eastern Tropical Pacific, Diagnosed in an Ocean GCM  

Science Conference Proceedings (OSTI)

The annual onset of the east Pacific cold tongue is diagnosed in an ocean GCM simulation of the tropical Pacific. The model uses a mixed-layer scheme that explicitly simulates the processes of vertical exchange of heat and momentum with the ...

William S. Kessler; Lewis M. Rothstein; Dake Chen

1998-05-01T23:59:59.000Z

155

The South Pacific and southeast Indian Ocean tropical cyclone season 2000-01  

E-Print Network (OSTI)

Twelve tropical cyclones formed in the South Pacific and southeast Indian Ocean during the 2000-01 tropical cyclone season. Of these, four formed in the South Pacific east of 160°E. Cyclone numbers in the Australian region were slightly below average, while numbers in the South Pacific were significantly less than average. The season was characterised by moderate La Niña conditions, weakening towards the end of the season. Cyclone occurrences were linked to active phases of the 30 to 60-day intraseasonal oscillation.

P. W. Bate

2002-01-01T23:59:59.000Z

156

Impact of Sea Level Assimilation on Salinity Variability in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

In the primitive equation model for the tropical Pacific at the National Centers for Environmental Prediction, subsurface temperature observations are assimilated. The addition of TOPEX/Poseidon sea level observations to the NCEP assimilation ...

Femke C. Vossepoel; David W. Behringer

2000-07-01T23:59:59.000Z

157

Tropical Oceanic Response to Extratropical Thermal Forcing in a Coupled Climate Model: A Comparison between the Atlantic and Pacific Oceans  

Science Conference Proceedings (OSTI)

The tropical oceanic response to the extratropical thermal forcing is quantitatively estimated in a coupled climate model. This work focuses on comparison of the responses between the tropical Atlantic and Pacific. Under the same extratropical ...

Haijun Yang; Lu Wang

2011-08-01T23:59:59.000Z

158

Variational Data Assimilation for Determining the Seasonal Net Surface Heat Flux Using a Tropical Pacific Ocean Model  

Science Conference Proceedings (OSTI)

The authors present a study for determining the seasonal net surface heat flux over the tropical Pacific Ocean using an adjoint technique. A simple tropical ocean model with thermodynamics is chosen and the seasonal sea surface temperature (SST) ...

Lisan Yu; James J. O'Brien

1995-10-01T23:59:59.000Z

159

Variability in the Characteristics of Precipitation Systems in the Tropical Pacific. Part II: Implications for Atmospheric Heating  

Science Conference Proceedings (OSTI)

This paper explores changes in the principal components of observed energy budgets across the tropical Pacific in response to the strong 1998 El Niño event. Multisensor observations from the Tropical Rainfall Measuring Mission (TRMM) Microwave ...

Tristan S. L'Ecuyer; Hirohiko Masunaga; Christian D. Kummerow

2006-04-01T23:59:59.000Z

160

Response of the Eastern Tropical Pacific to Meridional Migration of the ITCZ: The Generation of the Costa Rica Dome  

Science Conference Proceedings (OSTI)

A regional ocean circulation model with fine horizontal resolution has been developed in order to obtain a coherent seasonal picture of the eastern tropical Pacific off Central America.

S. Umatani; T. Yamagata

1991-02-01T23:59:59.000Z

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

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

162

Tropical Subsurface Salinity and Tritium Distributions in the Pacific: Their Differences and Formation Mechanisms  

Science Conference Proceedings (OSTI)

While high salinity water extends to the equator in the upper thermocline of the Pacific in the Southern Hemisphere (SH), it hits the western boundary (WB) farther north of the equator in the Northern Hemisphere (NH), suggesting that no interior ...

Masami Nonaka; Kensuke Takeuchi

2001-05-01T23:59:59.000Z

163

Biases and Model Agreement in Projections of Climate Extremes over the Tropical Pacific  

Science Conference Proceedings (OSTI)

Using the Coupled Model Intercomparison Project phase 3 (CMIP3) general circulation models (GCMs), projections of a range of climate extremes are explored for the western Pacific. These projections include the 1-in-20-yr return levels and a ...

Sarah E. Perkins

2011-09-01T23:59:59.000Z

164

Time-Mean Response over the Tropical Pacific to Increased C02 in a Coupled Ocean-Atmosphere Model  

Science Conference Proceedings (OSTI)

The time-mean response over the tropical Pacific region to a quadrupling Of CO2 is investigated using a global coupled ocean-atmosphere general circulation model. Tropical Pacific sea surface temperatures (SSTs) rise by about 4°–5°C. The zonal ...

Thomas R. Knutson; Syukuro Manabe

1995-09-01T23:59:59.000Z

165

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

166

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

167

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...

168

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

169

Convective Momentum Transport over the Tropical Pacific: Budget Estimates  

Science Conference Proceedings (OSTI)

ECMWF and NCEP–NCAR reanalyses are used to calculate convective momentum transport (CMT) as a momentum budget residual over several tropical oceanic convective regions, including the TOGA COARE Intensive Flux Array (IFA). Sources of uncertainty ...

Matthew T. Carr; Christopher S. Bretherton

2001-07-01T23:59:59.000Z

170

Are greenhouse gases changing ENSO precursors in the Western North Pacific?  

Science Conference Proceedings (OSTI)

Using multiple observational and model datasets, we document a strengthening relationship between boreal winter sea surface temperature anomalies (SSTA) in the western North Pacific (WNP) and the development of the El Niño-Southern Oscillation (...

Shih-Yu Wang; Michelle L’Heureux; Jin-Ho Yoon

171

Impacts of Sea Surface Temperature Uncertainty on the Western North Pacific Subtropical High (WNPSH) and Rainfall  

Science Conference Proceedings (OSTI)

This paper examines the sensitivity of short-term forecasts of the western North Pacific subtropical high (WNPSH) and rainfall to sea surface temperature (SST) uncertainty using the Coupled Ocean–Atmosphere Mesoscale Prediction System (COAMPS). A ...

Xiaodong Hong; Craig H. Bishop; Teddy Holt; Larry O’Neill

2011-06-01T23:59:59.000Z

172

Frequency Distribution of Daily ITCZ Patterns over the Western–Central Pacific  

Science Conference Proceedings (OSTI)

This study attempts to explore a comprehensive and compact approach for delineating the multiscale and multivariate characteristics of the ITCZ over the western–central Pacific based on daily satellite observations of precipitation, SSTs, and ...

Baode Chen; Xin Lin; Julio T. Bacmeister

2008-09-01T23:59:59.000Z

173

A Diagnostic Study of Upper Tropospheric Cold Lows Over the Western North Pacific  

Science Conference Proceedings (OSTI)

Four summers (1967, 1969, 1970, 1971) of rawinsonde data from four western North Pacific island stations (Guam, Midway, Johnston and Wake) were used to form a three-dimensional composite of the subtropical upper-tropospheric cold-core lows ...

Walker E. Kelly Jr.; Donald R. Mock

1982-06-01T23:59:59.000Z

174

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

Science Conference Proceedings (OSTI)

The phase relationships of the western North Pacific (WNP) summer monsoon (WNPM) with the Australian monsoon (AM) and Indian monsoon (IM) are investigated using observational rainfall, SST, and NCEP reanalysis data for the period of 1979–2005. It ...

Dejun Gu; Tim Li; Zhongping Ji; Bin Zheng

2010-11-01T23:59:59.000Z

175

A mechanism for explaining the maximum intraseasonal oscillation center over the western North Pacific  

Science Conference Proceedings (OSTI)

During late boreal summer (July through October), the intraseasonal oscillation (ISO) exhibits maximum variability over the western North Pacific (WNP) centered in the South China Sea and Philippine Sea, while many numerical models have difficulty ...

Fei Liu; Bin Wang

176

A New Approach to Forecasting Typhoon Frequency over the Western North Pacific  

Science Conference Proceedings (OSTI)

This paper presents a new approach for forecasting the typhoon frequency of the western North Pacific (WNP). The year-to-year increase or decrease in typhoon frequency is first forecasted to yield a net typhoon frequency prediction. Five key ...

Ke Fan; Huijun Wang

2009-08-01T23:59:59.000Z

177

Structural and Intensity Changes of Concentric Eyewall Typhoons in the Western North Pacific Basin  

Science Conference Proceedings (OSTI)

An objective method is developed to identify concentric eyewalls (CEs) for typhoons using passive microwave satellite imagery from 1997 to 2011 in the western North Pacific basin. Three CE types are identified: a CE with an eyewall replacement ...

Yi-Ting Yang; Hung-Chi Kuo; Eric A. Hendricks; Melinda S. Peng

2013-08-01T23:59:59.000Z

178

Are Greenhouse Gases Changing ENSO Precursors in the Western North Pacific?  

Science Conference Proceedings (OSTI)

Using multiple observational and model datasets, the authors document a strengthening relationship between boreal winter sea surface temperature anomalies (SSTAs) in the western North Pacific (WNP) and the development of the El Niño–Southern ...

Shih-Yu Wang; Michelle L'Heureux; Jin-Ho Yoon

2013-09-01T23:59:59.000Z

179

Seasonal Variations of Precipitation Properties Associated with the Monsoon over Palau in the Western Pacific  

Science Conference Proceedings (OSTI)

In this study, the authors focused on the seasonal variations of precipitation properties over the western Pacific, particularly those associated with the wind direction of the monsoon. An observational project over Peleliu Island in the Republic ...

Hisayuki Kubota; Ryuichi Shirooka; Tomoki Ushiyama; Takashi Chuda; Suginori Iwasaki; Kensuke Takeuchi

2005-08-01T23:59:59.000Z

180

Seasonal Climatic Anomaly Types for the North Pacific Sector and Western North America  

Science Conference Proceedings (OSTI)

Recurrent patterns of seasonal sea level pressure anomaly over the North Pacific sector and western North America are objectively identified using correlation coefficients between anomaly maps as a pattern recognition device. Five major anomaly ...

T. J. Blasing; G. R. Lofgren

1980-06-01T23:59:59.000Z

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

Comparison of Profiling Current Meter and Shipboard ADCP Measurements in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

Profiling current meter (PCM) measurements under a drifting buoy are compared with concurrent shipboard acoustic Doppler current profiler (ADCP) measurements carried out in the western equatorial Pacific in March 1991, from 10°S to 7°N along the ...

Thierry Delcroix; François Masia; Gérard Eldin

1992-12-01T23:59:59.000Z

182

Origin of the Summertime Synoptic-Scale Wave Train in the Western North Pacific  

Science Conference Proceedings (OSTI)

The origin of the summertime synoptic wave train in the western North Pacific is investigated with a multilevel, nonlinear baroclinic model. A realistic three-dimensional summer mean state is specified and eigenvectors are calculated by ...

Tim Li

2006-03-01T23:59:59.000Z

183

TOGA-TAO: A Moored Array for Real-time Measurements in the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

The importance of the El Niño-Southern Oscillation phenomenon in year-to-year fluctuations of the global climate has led to efforts to improve the real-time ocean observing system in the tropical Pacific. One element of this improved system is ...

S. P. Hayes; L. J. Mangum; J. Picaut; A. Sumi; K. Takeuchi

1991-03-01T23:59:59.000Z

184

Resonant Forcing of Mixed Layer Inertial Motions by Atmospheric Easterly Waves in the Northeast Tropical Pacific  

Science Conference Proceedings (OSTI)

Westward-propagating atmospheric easterly waves contribute to much of the variability of the low-level wind fields within the northeast tropical Pacific. With the dominant period of these waves (3–5 days) close to the local inertial period (2.4 ...

John B. Mickett; Yolande L. Serra; Meghan F. Cronin; Matthew H. Alford

2010-02-01T23:59:59.000Z

185

The South Pacific and southeast Indian Ocean tropical cyclone season 1998-99  

E-Print Network (OSTI)

Twenty tropical cyclones formed in the South Pacific and southeast Indian Ocean region during the 1998- 99 season. An uncharacteristic early start to the season saw the development of cyclone Zelia in early October followed by Alison in early November. But the season was most noted for the development

Sue Oates

2000-01-01T23:59:59.000Z

186

Annual and Nonseasonal Variability of Monthly Low-Level Wind Fields over the Southeastern Tropical Pacific  

Science Conference Proceedings (OSTI)

The time and space variability of low-level winds over the Southeast Tropical Pacific (SETP) region is described for the 6-year period 1974–80. The data set consists of monthly averaged low-level cloud-motion vector winds supplemented by coastal ...

David B. Enfield

1981-10-01T23:59:59.000Z

187

Sampling Requirements for the Surface Wind Field over the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

Moored wind measurements at near-equatorial locations along 110°W, 125°W, 140°W, 170°W, and 165°E are used to investigate the space-time variability of the tropical Pacific wind field. These measurements complement previous studies that relied on ...

L. J. Mangum; S. P. Hayes; L. D. Stratton

1992-10-01T23:59:59.000Z

188

The Linearity of the Atmospheric Response to Tropical Pacific Anomalous Forcing  

Science Conference Proceedings (OSTI)

In this paper, the authors show that the effect of a tropical Pacific anomalous forcing can he primarily linear or nonlinear depending on its sign and longitudinal position. Using a nine-level steady-state model both the linear and nonlinear ...

Qing Liu; Cornelius J. F. Schuurmans

1993-05-01T23:59:59.000Z

189

Scales of Thermal Variability in the Tropical Pacific  

Science Conference Proceedings (OSTI)

Long-range P-3 aircraft have been used to occupy two 4000 km long sections from 20°N to 17°S along 150 and 158°W in the central equatorial Pacific. The temperature field along these sections was measured at approximately weekly intervals for ...

T. P. Barnett; W. C. Patzert

1980-04-01T23:59:59.000Z

190

Diabatic Divergence Profiles in Western Pacific Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

Heating in the atmosphere can be expressed as diabatic divergence ?d, which is nearly equal to the actual horizontal divergence ? in tropical convection. High-quality ? profile measurements from airborne Doppler radar “purls” in ten mesoscale ...

Brian E. Mapes; Robert A. Houze Jr.

1995-05-01T23:59:59.000Z

191

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

Science Conference Proceedings (OSTI)

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

Yao Ha; Zhong Zhong; Xiuqun Yang; Yuan Sun

192

The NCEP GODAS Ocean Analysis of the Tropical Pacific Mixed Layer Heat Budget on Seasonal to Interannual Time Scales  

Science Conference Proceedings (OSTI)

The mixed layer heat budget in the tropical Pacific is diagnosed using pentad (5 day) averaged outputs from the Global Ocean Data Assimilation System (GODAS), which is operational at the National Centers for Environmental Prediction (NCEP). The ...

Boyin Huang; Yan Xue; Dongxiao Zhang; Arun Kumar; Michael J. McPhaden

2010-09-01T23:59:59.000Z

193

Sensitivity of Tropical Pacific Convection to Dry Layers at Mid- to Upper Levels: Simulation and Parameterization Tests  

Science Conference Proceedings (OSTI)

Numerical forecast experiments are carried out to investigate the implications of observed moisture variability in the tropical Pacific for deep convection. The study uses a series of quasi-cloud-resolving model forecasts with a triple-nested ...

James A. Ridout

2002-12-01T23:59:59.000Z

194

Why did large differences arise in the sea surface temperature datasets across the tropical Pacific during 2012?  

Science Conference Proceedings (OSTI)

During June-November 2012, pronounced differences in tropical Pacific sea-surface temperature (SST) anomalies were observed between three widely used SST products: the Extended Reconstructed SST v3b (ERSSTv3b) and the Optimum Interpolation SSTv2 ...

Boyin Huang; Michelle L’Heureux; Jay Lawrimore; Chunying Liu; Huai-Min Zhang; Viva Banzon; Zeng-Zhen Hu; Arun Kumar

195

Depiction of the Variations of Great Plains Precipitation and Its Relationship with Tropical Central-Eastern Pacific SST  

Science Conference Proceedings (OSTI)

Several advanced analysis tools are applied to depict the time–frequency characteristics of the variations of Great Plains (GP) precipitation and its relationship with tropical central-eastern Pacific Ocean sea surface temperature (SST). These ...

Song Yang; X. Ding; D. Zheng; Q. Li

2007-02-01T23:59:59.000Z

196

Vertical Mixing in the Ocean and Its Impact on the Coupled Ocean–Atmosphere System in the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

The zonal and meridional asymmetries in the eastern tropical Pacific (the eastern equatorial cold tongue and the northern intertropical convergence zone) are key aspects of the region that are strongly influenced by ocean–atmosphere interactions. ...

Kelvin J. Richards; Shang-Ping Xie; Toru Miyama

2009-07-01T23:59:59.000Z

197

Prediction Skill and Bias of Tropical Pacific Sea Surface Temperatures in the NCEP Climate Forecast System Version 2  

Science Conference Proceedings (OSTI)

The prediction skill and bias of tropical Pacific sea surface temperature (SST) in the retrospective forecasts of the Climate Forecast System, version 2 (CFSv2), of the National Centers for Environmental Prediction were examined. The CFSv2 was ...

Yan Xue; Mingyue Chen; Arun Kumar; Zeng-Zhen Hu; Wanqiu Wang

2013-08-01T23:59:59.000Z

198

Structure of Oceanic and Atmospheric Low-Frequency Variability over the Tropical Pacific and Indian Oceans. Part I: COADS Observations  

Science Conference Proceedings (OSTI)

The recurrent modes of combined oceanic and atmospheric low-frequency variability over the tropical Pacific and Indian oceans are calculated to provide quantitatively and structurally well-defined targets for simulation/prediction studies of ...

Sumant Nigam; Horng-Syi Shen

1993-04-01T23:59:59.000Z

199

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

Science Conference Proceedings (OSTI)

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

Barry B. Ma; Jeffrey A. Nystuen

2007-10-01T23:59:59.000Z

200

Subduction of South Pacific Tropical Water and Its Equatorward Pathways as Shown by a Simulated Passive Tracer  

Science Conference Proceedings (OSTI)

This study investigates the subduction of South Pacific Tropical Water (SPTW) and its equatorward pathways using a simulated passive tracer of the consortium Estimating the Circulation & Climate of the Ocean (ECCO). The results show that ...

Tangdong Qu; Shan Gao; Rana A. Fine

2013-08-01T23:59:59.000Z

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

Interannual-to-Decadal Variations of Tropical–Subtropical Exchange in the Pacific Ocean: Boundary versus Interior Pycnocline Transports  

Science Conference Proceedings (OSTI)

Interannual-to-decadal variations of tropical–subtropical mass exchange in the Pacific Ocean are investigated using a near-global ocean general circulation model along with satellite observations of sea level and wind and a data assimilation ...

Tong Lee; Ichiro Fukumori

2003-12-01T23:59:59.000Z

202

Observed Nonlinearities of Monthly Teleconnections between Tropical Pacific Sea Surface Temperature Anomalies and Central and Eastern North American Precipitation  

Science Conference Proceedings (OSTI)

Most investigations of relationships between tropical Pacific sea surface temperature anomaly (SSTA) events and regional climate patterns have assumed the teleconnections to be linear, whereby the climate patterns associated with cold SSTA events ...

David L. Montroy; Michael B. Richman; Peter J. Lamb

1998-07-01T23:59:59.000Z

203

The Role of Local Heating in Producing Temperature Variations in the Offshore Waters of the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

The role of local heating in producing annual and interannual sea-surface temperature variations in the eastern tropical Pacific is studied. Removed from the eastern boundary (122°W), and off the equator, local heating plays a major role in ...

Ants Leetmaa

1983-03-01T23:59:59.000Z

204

Observing Long-Period Fluctuations of Surface Winds in the Tropical Pacific: Initial Results from Island Data  

Science Conference Proceedings (OSTI)

The utility of studying low-frequency surface weather phenomena with long time series of meteorological data from tropical Pacific islands is demonstrated. The wind stress changes associated with El Niño events in the period 1950–78 are examined ...

D. S. Luther; D. E. Harrison

1984-02-01T23:59:59.000Z

205

A Coupled Air-Sea Biennial Mechanism in the Tropical Indian and Pacific Regions: Role of the Ocean  

Science Conference Proceedings (OSTI)

Variations in the upper-ocean beat content are part of a mechanism to explain biennial signals in the tropical Indian and Pacific ocean regions. The mechanism involves modulations of the annual cycle of convection and processes of the dynamically ...

Gerald A. Meehl

1993-01-01T23:59:59.000Z

206

Decadal-Scale SST and Salinity Variations in the Central Tropical Pacific: Signatures of Natural and Anthropogenic Climate Change  

E-Print Network (OSTI)

Accurate projections of future temperature and precipitation patterns in many regions of the world depend on quantifying anthropogenic signatures in tropical Pacific climate against its rich background of natural variability. ...

Nurhati, Intan Suci

207

Fitting Dynamic Models to the Geosat Sea Level Observations in the Tropical Pacific Ocean. Part I: A Free Wave Model  

Science Conference Proceedings (OSTI)

Free, equatorially trapped sinusoidal wave solutions to a linear model on an equatorial beta plane are used to fit the Geosat altimetric sea level observations in the Tropical Pacific Ocean. The Kalman filter technique is used to estimate the ...

Lee-Lueng Fu; Jorge Vazquez; Claire Perigaud

1991-06-01T23:59:59.000Z

208

Equatorward Propagation of Coupled Air–Sea Disturbances with Application to the Annual Cycle of the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

A simple coupled ocean–atmospheric boundary layer model is used to study the annual variability in the eastern tropical Pacific. The air–sea coupling, particularly the feedback of the total wind speed effect on evaporation and wind mixing ...

Zhengyu Liu; Shangping Xie

1994-12-01T23:59:59.000Z

209

The Annual Cycle in the Tropical Pacific Ocean Based on Assimilated Ocean Data from 1983 to 1992  

Science Conference Proceedings (OSTI)

An analysis of the tropical Pacific Ocean from January 1983 to December 1992 is used to describe the annual cycle, with the main focus on subsurface temperature variations. Some analysis of ocean-current variations are also considered. Monthly ...

Thomas M. Smith; Muthuvel Chelliah

1995-06-01T23:59:59.000Z

210

Surface Flux Observations on the Southeastern Tropical Pacific Ocean and Attribution of SST Errors in Coupled Ocean–Atmosphere Models  

Science Conference Proceedings (OSTI)

A new dataset synthesizes in situ and remote sensing observations from research ships deployed to the southeastern tropical Pacific stratocumulus region for 7 years in boreal fall. Surface meteorology, turbulent and radiative fluxes, aerosols, ...

Simon P. de Szoeke; Christopher W. Fairall; Daniel E. Wolfe; Ludovic Bariteau; Paquita Zuidema

2010-08-01T23:59:59.000Z

211

A Conceptual Model for the Influence of TUTT Cells on Tropical Cyclone Motion in the Northwest Pacific Ocean  

Science Conference Proceedings (OSTI)

Eleven (10 Pacific, 1 Atlantic) tropical cyclones (TCs), which include typhoons/hurricanes and tropical storms, are examined using the latest 40-yr ECMWF Re-Analysis (ERA-40) dataset and Joint Typhoon Warning Center (JTWC) best-track data to ...

Jason E. Patla; Duane Stevens; Gary M. Barnes

2009-10-01T23:59:59.000Z

212

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

213

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

214

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

215

TAO, Vol. 16, No. 2, 285-314, June 2005 A Review on the Western North Pacific Monsoon  

E-Print Network (OSTI)

285 TAO, Vol. 16, No. 2, 285-314, June 2005 REVIEW A Review on the Western North Pacific Monsoon and evolution charac- teristics of the western North Pacific monsoon on various time scales, in- cluding its-70-day) bands. On the interannual time scale, the monsoon is greatly modulated by and possibly feeds back

Li, Tim

216

The Impact of Dropwindsonde Data from the THORPEX Pacific Area Regional Campaign and the NOAA Hurricane Field Program on Tropical Cyclone Forecasts in the Global Forecast System  

Science Conference Proceedings (OSTI)

Four aircraft released dropwindsondes in and around tropical cyclones in the west Pacific during The Observing System Research and Predictability Experiment (THORPEX) Pacific Area Regional Campaign (T-PARC) in 2008 and the Dropwindsonde ...

Sim D. Aberson

2011-09-01T23:59:59.000Z

217

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

218

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

219

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

220

Interannual Variability of Summer Monsoon Onset over the Western North Pacific and the Underlying Processes  

Science Conference Proceedings (OSTI)

Climatological summer monsoon onset over the South China Sea (SCS) and the western North Pacific (WNP) (defined as the region of 10°–20°N, 120°–160°E) displays three distinct stages. Around mid-May, monsoon rain commences in the SCS and the ...

Renguang Wu; Bin Wang

2000-07-01T23:59:59.000Z

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

Annual Cycle of Rainfall in the Western North Pacific and East Asian Sector  

Science Conference Proceedings (OSTI)

The annual cycle of precipitation over the western North Pacific and East Asian (WNP–EA) sector has five major periods: spring, the first and second wet periods, fall, and winter. In this study, processes that induce precipitation in each period ...

Chia Chou; Li-Fan Huang; Lishan Tseng; Jien-Yi Tu; Pei-Hua Tan

2009-04-01T23:59:59.000Z

222

Monitoring and Predicting the Intraseasonal Variability of the East Asian–Western North Pacific Summer Monsoon  

Science Conference Proceedings (OSTI)

In this study, a new index is defined to capture the prominent northward propagation of the intraseasonal oscillation (ISO) in boreal summer in the East Asian and western North Pacific (EAWNP) region. It is based on the first two modes of ...

Hai Lin

2013-03-01T23:59:59.000Z

223

Asymmetry of Atmospheric Circulation Anomalies over the Western North Pacific between El Niño and La Niña  

Science Conference Proceedings (OSTI)

The asymmetry of the western North Pacific (WNP) low-level atmospheric circulation anomalies between the El Niño and La Niña mature winter is examined. An anomalous WNP cyclone (WNPC) center during La Niña tends to shift westward relative to an ...

Bo Wu; Tim Li; Tianjun Zhou

2010-09-01T23:59:59.000Z

224

Relative Contributions of the Indian Ocean and Local SST Anomalies to the Maintenance of the Western North Pacific Anomalous Anticyclone during the El Niño Decaying Summer  

Science Conference Proceedings (OSTI)

To investigate the relative role of the cold SST anomaly (SSTA) in the western North Pacific (WNP) or Indian Ocean basin mode (IOBM) in maintaining an anomalous anticyclone over the western North Pacific (WNPAC) during the El Niño decaying summer,...

Bo Wu; Tim Li; Tianjun Zhou

2010-06-01T23:59:59.000Z

225

An Observational Study of Tropical Cyclone Spin-Up in Supertyphoon Jangmi (2008) from 24–27 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

226

The South Pacific and southeast Indian Ocean tropical cyclone season 2003-04  

E-Print Network (OSTI)

Twelve tropical cyclones (TCs) formed in the combined southeast Indian Ocean and South Pacific Ocean basins, all of which formed between December and March. This was well below the long-term average of 18.9 and becomes the fifth consecutive year of below average occurrences of TCs over this region. However, of the 20 TCs to occur in the southern hemisphere as a whole, eight of those became intense tropical cyclones (ITC), resulting in an above average number of ITCs and ITC days in the southern hemisphere. The El Niño Southern – Oscillation (ENSO) should not have been a modulating influence, in this ENSO-neutral season. The majority of TCs coincided with active phases of the Madden-Julian Oscillation (MJO).

R. Mcinerney; J. Farlow; E. Henry; B. Lynch; I. Shepherd; T. Smith

2006-01-01T23:59:59.000Z

227

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

228

Association of Tropical Cirrus in the 10–15-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 10–15-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

229

Impact of the Diurnal Cycle of Solar Radiation on Intraseasonal SST Variability in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

The mechanism by which the diurnal cycle of solar radiation modulates intraseasonal SST variability in the western Pacific warm pool is investigated using a one-dimensional mixed layer model. SSTs in the model experiments forced with hourly ...

Toshiaki Shinoda

2005-07-01T23:59:59.000Z

230

Interannual Variability of the Asian Summer Monsoon: Contrasts between the Indian and the Western North Pacific–East Asian Monsoons  

Science Conference Proceedings (OSTI)

Analyses of 50-yr NCEP–NCAR reanalysis data reveal remarkably different interannual variability between the Indian summer monsoon (ISM) and western North Pacific summer monsoon (WNPSM) in their temporal–spatial structures, relationships to El ...

Bin Wang; Renguang Wu; K-M. Lau

2001-10-01T23:59:59.000Z

231

The Structure and Evolution of Seasonal Wind Anomalies over the Near-equatorial Eastern Indian and Western Pacific Oceans  

Science Conference Proceedings (OSTI)

The longitude–height–time evolution of seasonally averaged wind anomalies over the near-equatorial eastern Indian and western Pacific Oceans is examined, using multiyear time series derived from a network of eight rawinsonde stations. Data at six ...

David S. Gutzler; D. E. Harrison

1987-01-01T23:59:59.000Z

232

Ocean Frontal Effects on the Vertical Development of Clouds over the Western North Pacific: In Situ and Satellite Observations  

Science Conference Proceedings (OSTI)

A suite of shipboard and satellite observations are analyzed and synthesized to investigate the three-dimensional structure of clouds and influences from sea surface temperature fronts over the western North Pacific. Sharp transitions are ...

Hiroki Tokinaga; Youichi Tanimoto; Shang-Ping Xie; Takeaki Sampe; Hiroyuki Tomita; Hiroshi Ichikawa

2009-08-01T23:59:59.000Z

233

Relationships between Rain Characteristics and Environment. Part I: TRMM Precipitation Features and the Large-Scale Environment over the Tropical Pacific  

Science Conference Proceedings (OSTI)

Differences in the characteristics of rain systems in the eastern Pacific (EP) intertropical convergence zone (ITCZ) and the western Pacific (WP) warm pool are quantitatively examined in relation to the large-scale environment. This study mainly ...

Chie Yokoyama; Yukari N. Takayabu

2012-09-01T23:59:59.000Z

234

Mechanisms Involved in the Amplification of the 11-yr Solar Cycle Signal in the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

It is debated whether the response of the tropical Pacific Ocean to the 11-yr solar cycle forcing resembles a La Niña– or El Niño–like signal. To address this issue, ensemble simulations employing an atmospheric general circulation model with and ...

Stergios Misios; Hauke Schmidt

2012-07-01T23:59:59.000Z

235

The Response of a Linear Model of the Tropical Pacific to Surface Winds from the NCAR General Circulation Model  

Science Conference Proceedings (OSTI)

An experiment in which surface wind stress data from the National Center for Atmospheric Research global circulation model (GCM) was used to drive a simple model of the tropical Pacific is described. First, a 15-year integration of the GCM was ...

Nicholas E. Graham; Tim P. Barnett; Vijay G. Panchang; Ole M. Smedstad; James J. O'Brien; Robert M. Chervin

1989-09-01T23:59:59.000Z

236

MJO and Tropical Cyclogenesis in the Gulf of Mexico and Eastern Pacific: Case Study and Idealized Numerical Modeling  

Science Conference Proceedings (OSTI)

The role of the Madden–Julian oscillation (MJO) in modulating the frequency and location of tropical cyclogenesis over the eastern Pacific and the Gulf of Mexico during August–September 1998 is examined. During the nonconvective phase of the MJO, ...

Anantha Aiyyer; John Molinari

2008-08-01T23:59:59.000Z

237

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

238

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

239

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

Science Conference Proceedings (OSTI)

Satellite-based ocean color measurements indicate clear evidence for bioclimate interactions in the tropical Pacific associated with El Niño–Southern Oscillation (ENSO). Recent modeling studies have demonstrated that ocean biology can potentially ...

Rong-Hua Zhang; Dake Chen; Guihua Wang

2011-07-01T23:59:59.000Z

240

The Southern Oscillation in Surface Circulation and Climate over the Tropical Atlantic, Eastern Pacific, and Indian Oceans as Captured by Cluster Analysis  

Science Conference Proceedings (OSTI)

Clusters of sea level pressure (SLP), surface wind, cloudiness, and sea surface temperature (SST) in the domain of the tropical Atlantic, eastern Pacific, and Indian Oceans are introduced and discussed in terms of general circulation and climate. ...

Klaus Wolter

1987-04-01T23:59:59.000Z

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

Simulation of ENSO-Related Surface Winds in the Tropical Pacific by an Atmospheric General Circulation Model Forced by Observed Sea Surface Temperatures  

Science Conference Proceedings (OSTI)

The authors present the simulation of the tropical Pacific surface wind variability by a low-resolution (R15 horizontal resolution and 18 vertical levels) version of the Center for Ocean-Land-Atmosphere Interactions, Maryland, general circulation ...

B. N. Goswami; V. Krishnamurthy; N. H. Saji

1995-06-01T23:59:59.000Z

242

Observation of 3–6-Day Meridional Wind Oscillations over the Tropical Pacific, 1973–1992: Vertical Structure and Interannual Variability  

Science Conference Proceedings (OSTI)

Rawinsonde data from tropical Pacific stations were examined for westward-propagating 3–6-day meridional wind oscillations in the troposphere and lower stratosphere, 1973–1992. Four types were identified from cross- spectrum and principal ...

Timothy J. Dunkerton

1993-10-01T23:59:59.000Z

243

Investigating the Utility of Using Cross-Oceanic Training Sets for Superensemble Forecasting of Eastern Pacific Tropical Cyclone Track and Intensity  

Science Conference Proceedings (OSTI)

This paper examines how combining training-set forecasts from two separate oceanic basins affects the resulting tropical cyclone track and intensity forecasts in a particular oceanic basin. Atlantic and eastern Pacific training sets for 2002 and ...

Mark R. Jordan II; T. N. Krishnamurti; Carol Anne Clayson

2008-06-01T23:59:59.000Z

244

The Tropical Eastern Pacific Seasonal Cycle: Assessment of Errors and Mechanisms in IPCC AR4 Coupled Ocean–Atmosphere General Circulation Models  

Science Conference Proceedings (OSTI)

Warmer SST and more rain in the Northern Hemisphere are observed year-round in the tropical eastern Pacific with southerly wind crossing the equator toward the atmospheric heating. The southerlies are minimal during boreal spring, when two ...

Simon P. de Szoeke; Shang-Ping Xie

2008-06-01T23:59:59.000Z

245

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

Science Conference Proceedings (OSTI)

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

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

1998-09-01T23:59:59.000Z

246

A North Pacific Short-Wave Train during the Extreme Phases of ENSO  

Science Conference Proceedings (OSTI)

Sea surface temperatures (SSTs) exhibit an interannual seesaw between the eastern and western tropical Pacific in concert with the El Niño–Southern Oscillation (ENSO) cycle. Evidence accumulated from previous studies suggests that a ...

Tsing-Chang Chen

2002-09-01T23:59:59.000Z

247

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

248

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

249

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

250

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

251

Linear Equatorial Wave Mode Initialization in a Model of the Tropical Pacific Ocean: An Initialization Scheme for Tropical Ocean Models  

Science Conference Proceedings (OSTI)

Data assimilation in models of the tropical oceans can generate spurious equatorial wave modes which are potentially harmful to the model background fields. The amplitudes of these spurious wave modes can often be large and, in general, depend ...

Andrew M. Moore

1990-03-01T23:59:59.000Z

252

The Influence of ENSO on Decadal Variations in the Relationship between the East Asian and Western North Pacific Summer Monsoons  

Science Conference Proceedings (OSTI)

A recent study suggested that the relationship between the East Asian summer monsoon (EASM) and the western North Pacific summer monsoon (WNPSM) experienced a decadal change around 1993–94. Based on a longer-term integration of a hybrid coupled ...

So-Young Yim; Sang-Wook Yeh; Renguang Wu; Jong-Ghap Jhun

2008-07-01T23:59:59.000Z

253

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

Science Conference Proceedings (OSTI)

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

Alexander Soloviev; Roger Lukas

1997-06-01T23:59:59.000Z

254

Upper-Tropospheric Forcing on Late July Monsoon Transition in East Asia and the Western North Pacific  

Science Conference Proceedings (OSTI)

By investigating the large-scale circulation in the upper troposphere, it is demonstrated that the rapid late July summer monsoon transition in the East Asia and western North Pacific (EA-WNP) is associated with a weakened westerly at the exit of ...

Chi-Hua Wu; Ming-Dah Chou

2012-06-01T23:59:59.000Z

255

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

Science Conference Proceedings (OSTI)

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

J. Thomas Farrar

2011-06-01T23:59:59.000Z

256

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

257

Processes Controlling the Mean Tropical Pacific Precipitation Pattern. Part II: The SPCZ and the Southeast Pacific Dry Zone  

Science Conference Proceedings (OSTI)

The nature of the South Pacific convergence zone (SPCZ) is addressed by focusing on the dry (and cool) zone bounded by it and the coast of South America through numerical experiments. As shown in a companion paper, this dry zone is due, to a ...

Ken Takahashi; David S. Battisti

2007-12-01T23:59:59.000Z

258

Simulation of the tropical Pacific climate with a coupled ocean - atmosphere general circulation model. Part II: Interannual variability  

Science Conference Proceedings (OSTI)

Two multiyear simulations with a coupled ocean-atmosphere general circulation model (GCM)-totaling 45 years-are used to investigate interannual variability at the equator. The model consists of the UCLA global atmospheric GCM coupled to the GFDL oceanic GCM, dynamically active over the tropical Pacific. Multichannel singular spectrum analysis along the equator identifies ENSO-like quasi-biennial (QB) and quasi-quadrennial (QQ) modes. Both consist of predominantly standing oscillations in sea surface temperature and zonal wind stress that peak in the central or east Pacific, accompanied by an oscillation in equatorial thermocline depth that is characterized by a phase shift of about 90{degrees} across the basin, with west leading east. Simulated interannual variability is weaker than observed in both simulations. One of these is dominated by the QB, the other by the QQ mode, although the two differ only in details of the surface-layer parameterizations. 42 refs., 19 figs., 2 tabs.

Robertson, A.W.; Ma, C.C.; Ghil, M. [Univ. of California, Los Angeles, CA (United States)] [and others

1995-05-01T23:59:59.000Z

259

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

260

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

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

Kernel Density Estimation Applied to Tropical Cyclones Genesis in Northwestern Pacific  

Science Conference Proceedings (OSTI)

It is recognized that although the conditions necessary for generating cyclones are actually present in the tropical latitudes for much of the year, the storms themselves are comparatively rare. In addition, the skill of forecasting the occurrence of ... Keywords: genesis, kernel density estimation, tropical cyclone

Zhao Haikun; Wu Liguang; Zhou Weican

2009-07-01T23:59:59.000Z

262

Interannual Variability of the Cyclonic Activity along the U.S. Pacific Coast: Influences on the Characteristics of Winter Precipitation in the Western United States  

Science Conference Proceedings (OSTI)

This study examines the observed interannual variability of the cyclonic activity along the U.S. Pacific coast and quantifies its impact on the characteristics of both the winter total and extreme precipitation in the western United States. A ...

Boksoon Myoung; Yi Deng

2009-11-01T23:59:59.000Z

263

Influence of the Pacific Decadal Oscillation on Winter Precipitation and Drought during Years of Neutral ENSO in the Western United States  

Science Conference Proceedings (OSTI)

The influence of the Pacific decadal oscillation (PDO) on important hydroclimatic variables during years of neutral ENSO for 84 climate divisions in the western United States is analyzed from 1925 to 1998. When the 34 neutral ENSO years are split ...

Gregory B. Goodrich

2007-02-01T23:59:59.000Z

264

Role of the Atmospheric and Oceanic Circulation in the Tropical Pacific SST Changes  

Science Conference Proceedings (OSTI)

A coupled climate model is used to explore the response of the tropical sea surface temperature (SST) to positive SST anomalies in the global extratropics. The main model results here are consistent with previous numerical studies. In response to ...

Jingzhi Su; Huijun Wang; Haijun Yang; Helge Drange; Yongqi Gao; Mats Bentsen

2008-05-01T23:59:59.000Z

265

Tropical Instability Wave Variability in the Pacific and Its Relation to Large-Scale Currents  

Science Conference Proceedings (OSTI)

Shipboard acoustic Doppler current profiler (ADCP)-derived zonal currents from 170° to 110°W are assembled into composite seasonal and ENSO cycles to produce detailed representations of large-scale ocean flow regimes that favor tropical ...

Eric S. Johnson; Jeffrey A. Proehl

2004-10-01T23:59:59.000Z

266

Comparisons of GCM and Observed Surface Wind Fields over the Tropical Indian and Pacific Oceans  

Science Conference Proceedings (OSTI)

Many of the processes that have important effects on both the climatological distribution and interannual variability of sea surface temperatures (SSTs) in the tropical oceans are greatly affected by the surface wind field. For this reason ...

Nicholas E. Graham; Tim P. Barnett; Robert M. Chervin; Michael E. Schlesinger; Ulrich Schlese

1989-03-01T23:59:59.000Z

267

The Interaction of Clouds and Dry Air in the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

Cloud radar observations of eastern Pacific intertropical convergence zone cloud vertical structure are interpreted in light of soundings, 100-km-scale divergence profiles calculated from precipitation radar Doppler velocities, and surface rain ...

Paquita Zuidema; Brian Mapes; Jialin Lin; Chris Fairall; Gary Wick

2006-09-01T23:59:59.000Z

268

Improved representation of tropical Pacific ocean-atmosphere dynamics in an intermediate complexity climate model  

Science Conference Proceedings (OSTI)

A new anomaly coupling technique is introduced into a coarse-resolution dynamic climate model (LOVECLIM), improving the model’s representation of eastern equatorial Pacific surface temperature variability. The anomaly coupling amplifies the ...

Ryan L. Sriver; Axel Timmermann; Michael E. Mann; Klaus Keller; Hugues Goosse

269

Analogous Pacific and Atlantic Meridional Modes of Tropical Atmosphere–Ocean Variability  

Science Conference Proceedings (OSTI)

From observational analysis a Pacific mode of variability in the intertropical convergence zone (ITCZ)/cold tongue region is identified that possesses characteristics and interpretation similar to the dominant “meridional” mode of interannual–...

John C. H. Chiang; Daniel J. Vimont

2004-11-01T23:59:59.000Z

270

Fitting Dynamic Models to the Geosat Sea Level Observations in the Tropical Pacific Ocean. Part II: A Linear, Wind-driven Model  

Science Conference Proceedings (OSTI)

The Geosat altimeter sea level observations in the tropical Pacific Ocean are used to evaluate the Performance of a linear wind-driven equatorial wave model. The question posed is the extent to which such a model can describe the observed sea ...

Lee-Lueng Fu; Ichiro Fukumori; Robert N. Miller

1993-10-01T23:59:59.000Z

271

Upper-Ocean Salinity Variability in the Tropical Pacific: Case Study for Quasi-Decadal Shift during the 2000s Using TRITON Buoys and Argo Floats  

Science Conference Proceedings (OSTI)

Upper-ocean salinity variation in the tropical Pacific is investigated during the 2000s, when TRITON buoys and Argo floats were deployed and more salinity data were observed than in previous periods. We focus on upper-ocean salinity variability ...

Takuya Hasegawa; Kentaro Ando; Iwao Ueki; Keisuke Mizuno; Shigeki Hosoda

272

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

273

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

274

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

275

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

276

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

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 1997–September ...

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

2004-05-01T23:59:59.000Z

277

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

278

Interannual Variability of the Kuroshio Frontal Structure along Its Western Boundary in the North Pacific Ocean Associated with the 1982 ENSO Event  

Science Conference Proceedings (OSTI)

The vertically averaged temperature (Tav) over the upper 200 m of ocean in the western boundary of the North Pacific is used to detect changes in the strength and path of the Kuroshio Front along the western boundary from Luzon (18°N) to Honshu (...

Youhai He; Warren B. White

1987-09-01T23:59:59.000Z

279

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

280

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

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

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

282

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

283

Tropical Cyclone Environments over the Northeastern and Northwestern Pacific Based on ERA-15 Analyses  

Science Conference Proceedings (OSTI)

This study uses a 1° × 1° lat–long dataset, extracted from ECMWF reanalyses for the 15-yr period 1979–93 (ERA-15), to composite environmental characteristics and flow features in the vicinity of named tropical cyclones (TCs) in the eastern and ...

Dayton G. Vincent; Andreas H. Fink

2001-08-01T23:59:59.000Z

284

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

Science Conference Proceedings (OSTI)

Variations in the warm water volume (WWV) of the equatorial Pacific Ocean are considered a key element of the dynamics of the El Niño–Southern Oscillation (ENSO) phenomenon. WWV, a proxy for the upper-ocean heat content, is usually defined as the ...

Jaclyn N. Brown; Alexey V. Fedorov

2010-01-01T23:59:59.000Z

285

Use of Monthly Mean Data to Compute Surface Turbulent Fluxes in the Tropical Pacific  

Science Conference Proceedings (OSTI)

This study investigates to what extent monthly mean surface meteorological variables can be used to estimate surface turbulent fluxes in the equatorial Pacific. The two-year data from the TOGA TAO moored buoy array are used to compute the monthly ...

Guang Jun Zhang

1995-12-01T23:59:59.000Z

286

Geostrophic Circulation in the Tropical North Pacific Ocean Based on Argo Profiles  

Science Conference Proceedings (OSTI)

Absolute geostrophic currents in the North Pacific Ocean are calculated from the newly gridded Argo Profiling float data using the P-vector method for the period of 2004 through 2011. The zonal geostrophic currents based on the Argo profile data ...

Dongliang Yuan; Zhichun Zhang; Peter C. Chu; William K. Dewar

287

Dynamic Heights and Zonal Geostrophic Transports in the Central Tropical Pacific during 1979–84  

Science Conference Proceedings (OSTI)

Dynamic height is calculated from XBT and surface salinity data in the central Pacific using a mean temperature–salinity (T–S) relation in the usual way below the thermocline but assuming isohaline water in the upper layer where the temperatures ...

William S. Kessler; Bruce A. Taft

1987-01-01T23:59:59.000Z

288

An OGCM Study for the TOGA Decade. Part I: Role of Salinity in the Physics of the Western Pacific Fresh Pool  

Science Conference Proceedings (OSTI)

A set of numerical simulations of the tropical Pacific Ocean during the 1985–94 decade is used to investigate the effects of haline stratification on the low-frequency equilibrium of the Coupled Ocean–Atmosphere Response Experiment region. The ...

Jérôme Vialard; Pascale Delecluse

1998-06-01T23:59:59.000Z

289

Temperature Change on the Antarctic Peninsula Linked to the Tropical Pacific  

Science Conference Proceedings (OSTI)

Significant summer warming over the eastern Antarctic Peninsula in the last 50 years has been attributed to a strengthening of the circumpolar westerlies, widely believed to be anthropogenic in origin. On the western side of the peninsula, ...

Qinghua Ding; Eric J. Steig

2013-10-01T23:59:59.000Z

290

An Operational Statistical Typhoon Intensity Prediction Scheme for the Western North Pacific  

Science Conference Proceedings (OSTI)

The current version of the Statistical Typhoon Intensity Prediction Scheme (STIPS) used operationally at the Joint Typhoon Warning Center (JTWC) to provide 12-hourly tropical cyclone intensity guidance through day 5 is documented. STIPS is a ...

John A. Knaff; Charles R. Sampson; Mark DeMaria

2005-08-01T23:59:59.000Z

291

Convective Transport Theory for Surface Fluxes Tested over the Western Pacific Warm Pool  

Science Conference Proceedings (OSTI)

Turbulent flux measurements from five flights of the National Center for Atmospheric Research Electra aircraft during the Tropical Oceans and Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) are used to test convective ...

Lawrence Greischar; Roland Stull

1999-07-01T23:59:59.000Z

292

Dynamics of the Biennial Oscillation in the Equatorial Indian and Far Western Pacific Oceans  

Science Conference Proceedings (OSTI)

Many investigators have noted strong biennial atmospheric and oceanic variability, phase-locked to the calendar year, over the equatorial Indian and Pacific Oceans. A simple air–sea interaction theory suggests that biennial oscillations in the ...

Allan J. Clarke; Xiang Liu; Stephen Van Gorder

1998-05-01T23:59:59.000Z

293

Characteristics of Strong Updrafts in Precipitation Systems over the Central Tropical Pacific Ocean and in the Amazon  

Science Conference Proceedings (OSTI)

Airborne in situ measurements of updrafts in tropical convective storms were analyzed to determine the similarities and differences between updrafts in a tropical continental and a tropical oceanic region. Two hundred fifteen updraft cores from ...

Nicholas F. Anderson; Cedric A. Grainger; Jeffrey L. Stith

2005-05-01T23:59:59.000Z

294

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

295

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

296

Variations in Gyre Closure at the Water Mass Crossroads of the Western Equatorial Pacific Ocean  

Science Conference Proceedings (OSTI)

Assuming the flow over the depth of interest may be described by a 2D streamfunction, ?, a general analytical method for determining the path of each streamline through a series of channels, which may be western boundary layers or straits, is ...

Roxana C. Wajsowicz

1999-12-01T23:59:59.000Z

297

Modeling of Tropical Forcing of Persistent Droughts and Pluvials over Western North America: 1856–2000  

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

298

ROD for the Interconnection of the Griffith Power Plant With the Western Area Power Administration's Parker-Davis and Pacific Northwest-Pacific Southwest Intertie Transmission Systems (5/28/99)  

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

23 23 Federal Register / Vol. 64, No. 103 / Friday, May 28, 1999 / Notices 129, Main Street, Madison, ME 04950, (207) 696-1225. l. FERC contact: Nan Allen, nan.allen@ferc.fed.us, (202) 219-2948. m. Pursuant to 18 CFR 16.9(b)(1) each application for a new license and any competing license applications must be filed with the Commission at least 24 months prior to the expiration of the existing license. All applications for license for this project must be filed by May 1, 2002. David P. Boergers, Secretary. [FR Doc. 99-13617 Filed 5-27-99; 8:45 am] BILLING CODE 6717-01-M DEPARTMENT OF ENERGY Western Area Power Administration [DOE/EIS-0297] Record of Decision for the Interconnection of the Griffith Power Plant With the Western Area Power Administration's Parker-Davis and Pacific Northwest-Pacific Southwest

299

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 1990–96 with CTD water mass observations and current profiling by shipboard and ...

Friedrich A. Schott; Jürgen Fischer; Lothar Stramma

1998-10-01T23:59:59.000Z

300

A New Look at the Pacific Storm Track Variability: Sensitivity to Tropical SSTs and to Upstream Seeding  

Science Conference Proceedings (OSTI)

There is a fairly well defined stationary wave and storm track response to El Niño SSTs over the Pacific. In this paper, the case is made that this response is a direct result of increased baroclinicity in the central Pacific and that changes in ...

Isidoro Orlanski

2005-05-01T23:59:59.000Z

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

A Model Investigation of the Role of Air–Sea Interaction in the Climatological Evolution and ENSO-Related Variability of the Summer Monsoon over the South China Sea and Western North Pacific  

Science Conference Proceedings (OSTI)

The summertime northeastward march of the climatological maritime monsoon over the South China Sea (SCS) and subtropical western North Pacific (WNP) is examined using the output from a 200-yr integration of a coupled atmosphere–ocean general ...

Ngar-Cheung Lau; Mary Jo Nath

2009-09-01T23:59:59.000Z

302

Eastern North Pacific Hurricane Season of 1996  

Science Conference Proceedings (OSTI)

The National Hurricane Center (a component of the Tropical Prediction Center) tracked nine tropical storms, five of which became hurricanes, during the 1996 eastern North Pacific hurricane season. Five tropical storms or hurricanes made landfall ...

Max Mayfield; Edward N. Rappaport

1998-12-01T23:59:59.000Z

303

Eastern North Pacific Hurricane Season of 1993  

Science Conference Proceedings (OSTI)

The National Hurricane Center tracked 14 tropical storms, 10 of which became hurricanes, during the 1993 eastern North Pacific hurricane season. Four named tropical cyclones and one tropical depression made landfall in Mexico. A general overview ...

Lixion A. Avila; Max Mayfield

1995-03-01T23:59:59.000Z

304

Tropical and subtropical cloud transitions in weather and climate prediction models: the GCSS/WGNE Pacific Cross-Section Intercomparison (GPCI)  

SciTech Connect

A model evaluation approach is proposed where weather and climate prediction models are analyzed along a Pacific Ocean cross-section, from the stratocumulus regions off the coast of California, across the shallow convection dominated trade-winds, to the deep convection regions of the ITCZ: the GCSS/WGNE Pacific Cross-section Intercomparison (GPCI). The main goal of GPCI is to evaluate, and help understand and improve the representation of tropical and sub-tropical cloud processes in weather and climate prediction models. In this paper, a detailed analysis of cloud regime transitions along the cross-section from the sub-tropics to the tropics for the season JJA of 1998 is presented. This GPCI study confirms many of the typical weather and climate prediction model problems in the representation of clouds: underestimation of clouds in the stratocumulus regime by most models with the corresponding consequences in terms of shortwave radiation biases; overestimation of clouds by the ECMWF Re-Analysis (ERA40) in the deep tropics (in particular) with the corresponding impact in the outgoing longwave radiation; large spread between the different models in terms of cloud cover, liquid water path and shortwave radiation; significant differences between the models in terms of vertical crosssections of cloud properties (in particular), vertical velocity and relative humidity. An alternative analysis of cloud cover mean statistics is proposed where sharp gradients in cloud cover along the GPCI transect are taken into account. This analysis shows that the negative cloud bias of some models and ERA40 in the stratocumulus regions (as compared to ISCCP) is associated not only with lower values of cloud cover in these regimes, but also with a stratocumulus-to-cumulus transition that occurs too early along the trade-wind Lagrangian trajectory. Histograms of cloud cover along the cross-section differ significantly between models. Some models exhibit a quasi-bimodal structure with cloud cover being either very large (close to 100%) or very small, while other models show a more continuous transition. The ISCCP observations suggest that reality is in-between these two extreme examples. These different patterns reflect the diverse nature of the cloud, boundary layer, and convection parameterizations in the participating weather and climate prediction models.

Teixeira, J.; Cardoso, S.; Bonazzola, M.; Cole, Jason N.; DelGenio, Anthony D.; DeMott, C.; Franklin, A.; Hannay, Cecile; Jakob, Christian; Jiao, Y.; Karlsson, J.; Kitagawa, H.; Koehler, M.; Kuwano-Yoshida, A.; LeDrian, C.; Lock, Adrian; Miller, M.; Marquet, P.; Martins, J.; Mechoso, C. R.; Meijgaard, E. V.; Meinke, I.; Miranda, P.; Mironov, D.; Neggers, Roel; Pan, H. L.; Randall, David A.; Rasch, Philip J.; Rockel, B.; Rossow, William B.; Ritter, B.; Siebesma, A. P.; Soares, P.; Turk, F. J.; Vaillancourt, P.; Von Engeln, A.; Zhao, M.

2011-11-01T23:59:59.000Z

305

Convection over the Pacific Warm Pool in relation to the Atmospheric Kelvin-Rossby Wave  

Science Conference Proceedings (OSTI)

Deep convection over the western tropical Pacific warm pool is analyzed in terms of its relation to the atmospheric Kelvin–Rossby wave, which dominates the large-scale flow during the austral summer. The study uses Doppler radar data collected by ...

Robert A. Houze Jr.; Shuyi S. Chen; David E. Kingsmill; Yolande Serra; Sandra E. Yuter

2000-09-01T23:59:59.000Z

306

A Climatology of Diurnal and Semidiurnal Surface Wind Variations over the Tropical Pacific Ocean Based on the Tropical Atmosphere Ocean Moored Buoy Array  

Science Conference Proceedings (OSTI)

Hourly measurements from 51 moored buoys in the Tropical Atmosphere Ocean array (9°N–8°S, 165°E–95°W) during 1993–2004 are used to document the climatological seasonal and annual mean patterns of diurnal and semidiurnal near-surface wind ...

Rei Ueyama; Clara Deser

2008-02-01T23:59:59.000Z

307

The Comprehensive Pacific Rainfall Database  

Science Conference Proceedings (OSTI)

This paper describes the Comprehensive Pacific Rainfall Database (PACRAIN), which contains daily and monthly precipitation records from the tropical Pacific basin. The database is a collection of observations from a variety of sources, including ...

J. Scott Greene; Michael Klatt; Mark Morrissey; Susan Postawko

2008-01-01T23:59:59.000Z

308

The Madden–Julian Oscillation, Barotropic Dynamics, and North Pacific Tropical Cyclone Formation. Part II: Stochastic Barotropic Modeling  

Science Conference Proceedings (OSTI)

A stochastic barotropic model linearized about the 850-mb flow is used to investigate the relationship between wind variations associated with the Madden–Julian oscillation (MJO) and eddy kinetic energy variations in the Tropics. Such a model is ...

Dennis L. Hartmann; Eric D. Maloney

2001-09-01T23:59:59.000Z

309

Interaction between Intraseasonal Oscillations of the Midlatitude Flow and Tropical Convection during 1979 Northern Summer: The Pacific Ocean  

Science Conference Proceedings (OSTI)

It has been inferred and illustrated by many studies in terms of outgoing longwave radiation (OLR) and velocity potential (?) that energy is input into the intraseasonal oscillation through tropical cumulus convection, especially over the monsoon ...

Tsing-Chang Chen; Ming-Chen Yen

1991-07-01T23:59:59.000Z

310

Links between Tropical Cyclone Activity and Madden–Julian Oscillation Phase in the North Atlantic and Northeast Pacific Basins  

Science Conference Proceedings (OSTI)

The leading intraseasonal mode of atmospheric and oceanic variability, the Madden–Julian oscillation (MJO), influences tropical and extratropical sea level pressure, temperature, divergent and rotational wind components, moisture, and deep ...

Bradford S. Barrett; Lance M. Leslie

2009-02-01T23:59:59.000Z

311

Surface Solar Irradiance in the Central Pacific during Tropic Heat: Comparisons between in Situ Measurements and Satellite Estimates  

Science Conference Proceedings (OSTI)

We present the first results concerning solar radiation at the ocean surface during the Tropic Heat experiment. Using calibrated GOES visible brightness measurements, a simple radiative transfer model calculates hourly and daily surface solar ...

Catherine Gautier

1988-06-01T23:59:59.000Z

312

The Mean and the Time Variability of the Shallow Meridional Overturning Circulation in the Tropical South Pacific Ocean  

Science Conference Proceedings (OSTI)

The meridional transport in the Pacific Ocean subtropical cell is studied for the period from 2004 to 2011 using gridded Argo temperature and salinity profiles and atmospheric reanalysis surface winds. The poleward Ekman and equatorward ...

N. V. Zilberman; D. H. Roemmich; S. T. Gille

2013-06-01T23:59:59.000Z

313

Intraseasonal Atmospheric Variability in the Extratropics and Its Relation to the Onset of Tropical Pacific Sea Surface Temperature Anomalies  

Science Conference Proceedings (OSTI)

Previous research has shown that seasonal-mean boreal winter variations in the subtropical/extratropical sea level pressure and wind stress fields over the central North Pacific are significantly related to the state of the El Niño–Southern ...

Bruce T. Anderson

2007-03-01T23:59:59.000Z

314

Deep Convective Systems Observed by A-Train in the Tropical Indo-Pacific Region Affected by the MJO  

Science Conference Proceedings (OSTI)

In the Indo-Pacific region, mesoscale convective systems (MCSs) occur in a pattern consistent with the eastward propagation of the large-scale convective envelope of the Madden–Julian oscillation (MJO). MCSs are major contributors to the total ...

Jian Yuan; Robert A. Houze Jr.

2013-02-01T23:59:59.000Z

315

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

316

Contrasting Eastern-Pacific and Central-Pacific Types of ENSO  

Science Conference Proceedings (OSTI)

Surface observations and subsurface ocean assimilation datasets are examined to contrast two distinct types of El Niño–Southern Oscillation (ENSO) in the tropical Pacific: an eastern-Pacific (EP) type and a central-Pacific (CP) type. An analysis ...

Hsun-Ying Kao; Jin-Yi Yu

2009-02-01T23:59:59.000Z

317

Air–Sea Heat Exchange along the Northern Sea Surface Temperature Front in the Eastern Tropical Pacific  

Science Conference Proceedings (OSTI)

The atmospheric response to the oceanic forcing in the eastern Pacific along the northern equatorial sea surface temperature (SST) front is investigated in terms of sensible and latent heat flux during the 6-month period from 28 July 1999 to 27 ...

Nicolai Thum; Steven K. Esbensen; Dudley B. Chelton; Michael J. McPhaden

2002-12-01T23:59:59.000Z

318

A Multiscale Observational Case Study of a Pacific Atmospheric River Exhibiting Tropical–Extratropical Connections and a Mesoscale Frontal Wave  

Science Conference Proceedings (OSTI)

A case study is presented of an atmospheric river (AR) that produced heavy precipitation in the U.S. Pacific Northwest during March 2005. The study documents several key ingredients from the planetary scale to the mesoscale that contributed to the ...

F. Martin Ralph; Paul J. Neiman; George N. Kiladis; Klaus Weickmann; David W. Reynolds

2011-04-01T23:59:59.000Z

319

Variability of the Outer Wind Profiles of Western North Pacific Typhoons: Classifications and Techniques for Analysis and Forecasting  

Science Conference Proceedings (OSTI)

The hazard posed by tropical cyclones (TCs) is often quantified in terms of the minimum central pressure (MCP) or maximum wind speed. While significant, these qualities must be balanced against considerations for the strength and spatial extent ...

Stephen B. Cocks; William M. Gray

2002-08-01T23:59:59.000Z

320

Decadal Shift in El Niño Influences on Indo–Western Pacific and East Asian Climate in the 1970s  

Science Conference Proceedings (OSTI)

El Niño’s influence on the subtropical northwest (NW) Pacific climate increased after the climate regime shift of the 1970s. This is manifested in well-organized atmospheric anomalies of suppressed convection and a surface anticyclone during the ...

Shang-Ping Xie; Yan Du; Gang Huang; Xiao-Tong Zheng; Hiroki Tokinaga; Kaiming Hu; Qinyu Liu

2010-06-01T23:59:59.000Z

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

The Relationship between the North Atlantic Jet and Tropical Convection over the Indian and Western Pacific Oceans  

Science Conference Proceedings (OSTI)

Boreal winter jet variability over the North Atlantic is investigated using 40-yr European Centre for Medium-Range Weather Forecasts Re-Analysis (ERA-40) data, where the variability is defined by the first EOF of the zonal wind on seven vertical ...

Jiacan Yuan; Steven B. Feldstein; Sukyoung Lee; Benkui Tan

2011-12-01T23:59:59.000Z

322

The Development and Evolution of Two Atmospheric Rivers in Proximity to Western North Pacific Tropical Cyclones in October 2010  

Science Conference Proceedings (OSTI)

This study investigates the evolution of two zonally elongated atmospheric rivers (ARs) that produced >200 mm of rainfall over mountainous regions of northern California in late October 2010. Synoptic-scale analysis and air parcel trajectory ...

Jason M. Cordeira; F. Martin Ralph; Benjamin J. Moore

323

Response of the Western Tropical Pacific to the Asian Winter Monsoon: The Generation of the Mindanao Dome  

Science Conference Proceedings (OSTI)

We have investigated the evolution of the Mindanao Dome off the Philippine coast using the GFDL ocean model. It is found that the model's Mindanao Dome evolves in late fall due to local upwelling when a positive curl associated with the northeast ...

Y. Masumoto; T. Yamagata

1991-09-01T23:59:59.000Z

324

ARM tropical pacific experiment (ATPEX): Role of cloud, water vapor and convection feedbacks in the coupled ocean/atmosphere system  

SciTech Connect

We have initiated studies that include radiation model validation, improved treatment of the three-dimensional structure of cloud-radiation interactions, and sensitivity runs that will unravel the role of cloud-convection-radiation interactions in the Pacific Sear Surface Temperatures and the overlying Walker and Hadley circulation. The research program is divided into three phases: (1) radiation, (2) cloud parameterization issues; (3) feedback and ocean-atmosphere interactions.

Ramanathan, V.; Barnett, T.P.

1992-03-05T23:59:59.000Z

325

Identification of Larval Pacific Lampreys (Lampetra tridentata), River Lampreys (L. ayresi), and Western Brook Lampreys (L. richardsoni) and Thermal Requirements of Early Life History Stages of Lampreys, Annual Report 2002-2003.  

DOE Green Energy (OSTI)

Two fundamental aspects of lamprey biology were examined to provide tools for population assessment and determination of critical habitat needs of Columbia River Basin (CRB) lampreys (the Pacific lamprey, Lampetra tridentata, and the western brook lamprey, L. richardsoni). We evaluated the usefulness of current diagnostic characteristics for identification of larval lampreys (i.e., pigment patterns) and collected material for development of meristic and morphometric descriptions of early life stage CRB lampreys, and we determined the effects of temperature on survival and development of early life stage CRB lampreys. Thirty-one larval lampreys were collected from locations throughout the CRB and transported to the Columbia River Research Laboratory. Lampreys were sampled at six-week intervals at which time they were identified to the species level based on current diagnostic characteristics. Sampling was repeated until lampreys metamorphosed, at which time species identification was validated based on dentition, or until they died, at which time they were preserved for genetic examination. These lampreys were sampled 30 times with two individuals metamorphosing, both of which were consistently identified, and subsequently validated, as Pacific lampreys. Of the remaining lampreys, only one was inconsistently identified (Pacific lamprey in 83% of the sampling events and western brook lamprey in 17% of the sampling events). These data suggest that pigmentation patterns do not change appreciably through time. In 2001 and 2002 we artificially spawned Pacific and western brook lampreys in the laboratory to provide material for meristic and morphometric descriptions. We collected, digitized, preserved, and measured the mean chorion diameter of Pacific and western brook lamprey embryos. Embryos ranged in development from 1 d post fertilization to just prior to hatch, and were incubated at 14 C. Mean chorion diameter was greater and more variable for Pacific lampreys (mean {+-} SD; 1.468 {+-} 0.107 mm, N = 320) than for western brook lampreys (1.237 {+-} 0.064 mm, N = 280). An unpaired t-test showed that the difference in mean chorion diameter between species was highly significant (t = 32.788, df = 528.62, P < 0.0001). For larvae, we collected, digitized, and preserved 156 individuals from each species. Eight homologous landmarks defining a two-cell truss network with two appended triangles were selected for morphometric analyses and species discrimination. A full model discriminant analysis correctly classified 92% of the Pacific lampreys and 93% of the western brook lampreys in a classification data set. When applied to a test data set, the classification functions correctly classified 91% of the Pacific lampreys and 85% of the western brook lampreys. A backward elimination discriminant analysis removed four variables from the full model, and the reduced model correctly classified 91% of the Pacific lampreys and 93% of the western brook lampreys in a classification data set. The reduced model classification functions correctly classified 91% of the Pacific lampreys and 85% of the western brook lampreys in a test data set. In 2001 and 2002 Pacific and western brook lampreys were artificially spawned and resulting progeny were reared in the laboratory at 10 C, 14 C, 18 C, and 22 C. The estimated temperature for zero development was 4.85 C for Pacific and 4.97 C for western brook lampreys. Survival was greatest at 18 C followed by 14 C, 10 C, and 22 C, with significant differences observed between 22 C and other temperatures. Overall survival was significantly greater for western brook than for Pacific lampreys, although the difference in proportion of individuals surviving was only 0.02. Survival to hatch was significantly greater than survival to the larval stage with a difference of only 0.03. The proportion of individuals exhibiting abnormalities at the larval stage was greatest at 22 C followed by 18 C, 10 C, and 14 C, with significant differences observed between 22 C and other temperatures.

Meeuwig, Michael

2004-01-01T23:59:59.000Z

326

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

327

Observation of Spatial Variability of Diurnal Thermocline and Rain-Formed Halocline in the Western Pacific Warm Pool  

Science Conference Proceedings (OSTI)

High-resolution measurements of temperature and salinity were made in the near-surface layer of the ocean during the Tropical Oceans-Global Atmosphere Coupled Ocean-Atmosphere Response Experiment, using probes mounted on the bow of the R/V Moana ...

Alexander Soloviev; Roger Lukas

1996-11-01T23:59:59.000Z

328

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

329

The Effect of Rainfall on the Surface Layer during a Westerly Wind Burst in the Western Equatorial Pacific  

Science Conference Proceedings (OSTI)

Measurements of a fresh surface anomaly (fresh lens) produced by rainfall during a westerly wind burst have been analyzed. The measurements were made in December 1992 as part of the Coupled Ocean–Atmosphere Response Experiment in the western ...

H. W. Wijesekera; C. A. Paulson; A. Huyer

1999-04-01T23:59:59.000Z

330

Eastern North Pacific Hurricane Season of 1997  

Science Conference Proceedings (OSTI)

The hurricane season of the eastern North Pacific basin is summarized and individual tropical cyclones are described. The number of tropical cyclones was near normal. Hurricane Pauline’s rainfall flooding killed more than 200 people in the ...

Miles B. Lawrence

1999-10-01T23:59:59.000Z

331

Eastern North Pacific Hurricane Season of 2003  

Science Conference Proceedings (OSTI)

The tropical cyclone activity for 2003 in the eastern North Pacific hurricane basin is summarized. Activity during 2003 was slightly below normal. Sixteen tropical storms developed, seven of which became hurricanes. However, there were no major ...

John L. Beven II; Lixion A. Avila; James L. Franklin; Miles B. Lawrence; Richard J. Pasch; Stacy R. Stewart

2005-05-01T23:59:59.000Z

332

Eastern North Pacific Hurricane Season of 2008  

Science Conference Proceedings (OSTI)

The hurricane season of 2008 in the eastern North Pacific basin is summarized, and the individual tropical cyclones are described. Official track and intensity forecasts of these cyclones are also evaluated. The 2008 eastern North Pacific season ...

Eric S. Blake; Richard J. Pasch

2010-03-01T23:59:59.000Z

333

Characteristics of the Raindrop Size Distribution and Drop Shape Relation in Typhoon Systems in the Western Pacific from the 2D Video Disdrometer and NCU C-Band Polarimetric Radar  

Science Conference Proceedings (OSTI)

The drop size distribution (DSD) and drop shape relation (DSR) characteristics that were observed by a ground-based 2D video disdrometer and retrieved from a C-band polarimetric radar in the typhoon systems during landfall in the western Pacific, ...

Wei-Yu Chang; Tai-Chi Chen Wang; Pay-Liam Lin

2009-10-01T23:59:59.000Z

334

Adjustment of the Remote Tropical Climate to El Niño Conditions  

Science Conference Proceedings (OSTI)

The adjustment of the tropical climate outside the Pacific (the “remote Tropics”) to the abrupt onset of El Niño 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

335

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 Atmosphere–Ocean (TAO) buoy array and wind speeds from the European ...

Robert F. Contreras

2002-09-01T23:59:59.000Z

336

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

337

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

Science Conference Proceedings (OSTI)

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

Gregory C. Johnson; Kristene E. McTaggart

2010-01-01T23:59:59.000Z

338

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

339

Dynamics of the Stationary Anomalies Associated with the Interannual Variability of the Midwinter Pacific Storm Track—The Roles of Tropical Heating and Remote Eddy Forcing  

Science Conference Proceedings (OSTI)

The leading mode of interannual variability of the midwinter Pacific storm track is such that the storm track is weaker during the winters when the Pacific jet is strong, and stronger when the jet is weak. In this paper, experiments are conducted ...

Edmund K. M. Chang; Yanjuan Guo

2007-07-01T23:59:59.000Z

340

Lightning Frequency and Microphysical Properties of Precipitating Clouds over the Western North Pacific during Winter as Derived from TRMM Multisensor Observations  

Science Conference Proceedings (OSTI)

Tropical Rainfall Measuring Mission observations from multiple sensors including precipitation radar, microwave and infrared radiometers, and a lightning sensor were used to describe precipitation, lightning frequency, and microphysical ...

Yasu-Masa Kodama; Haruna Okabe; Yukie Tomisaka; Katsuya Kotono; Yoshimi Kondo; Hideyuki Kasuya

2007-06-01T23:59:59.000Z

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

Rainstorm Analysis and Rainfall Erosivity of a Seasonal Tropical Region with a Strong Cyclonic Influence on the Pacific Coast of Mexico  

Science Conference Proceedings (OSTI)

The objective of this paper is to analyse the rainstorm pattern and rainfall erosivity of a seasonal tropical region in Mexico. Depth, duration, and intensity values of precipitation were obtained for all individual storms from continuous chart ...

F. García-Oliva; J. M. Maass; L. Galicia

1995-11-01T23:59:59.000Z

342

Low-Level Inversions over the Tropical Pacific—Thermodynamic Structure of the Boundary Layer and the Above-Inversion Moisture Structure  

Science Conference Proceedings (OSTI)

The structure of the boundary layer over a broad region of the equatorial Pacific is studied using dropwinsonde measurements made in January, February, May and June of 1979. Low-level inversions of sufficient strength to inhibit deep convection ...

Kevin A. Kloesel; Bruce A. Albrecht

1989-01-01T23:59:59.000Z

343

A Study of Geostrophy in Tropical Pacific Ocean Currents during the NORPAX Tahiti Shuttle using a Shipboard Doppler Acoustic Current Profiler  

Science Conference Proceedings (OSTI)

Continuous velocity measurements from a shipboard Doppler acoustic long on the NORPAX shuttle experiment in the central equatorial Pacific are presented. The time mean of these velocities shows the classical zonal equatorial currents as well as ...

Eric S. Johnson; Lloyd A. Regier; Robert A. Knox

1988-05-01T23:59:59.000Z

344

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

345

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

346

Sensitivity of Tropical Tropospheric Temperature to Sea Surface Temperature Forcing  

Science Conference Proceedings (OSTI)

During El Niño, 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

347

A Lagrangian Description of the Western Equatorial Pacific Response to the Wind Burst of December 1992: Heat Advection in the Warm Pool  

Science Conference Proceedings (OSTI)

During the Tropical Oceans Global Atmosphere (TOGA) Coupled Ocean–Atmosphere Response Experiment (COARE) intensive observing period (IOP), sustained westerly winds were observed between 20 December 1992 and 10 January 1993 in the area between 155°...

Elise A. Ralph; Kenong Bi; Pearn P. Niiler; Yves du Penhoat

1997-07-01T23:59:59.000Z

348

Dominant Mode of Climate Variability, Intermodel Diversity, and Projected Future Changes over the Summertime Western North Pacific Simulated in the CMIP3 Models  

Science Conference Proceedings (OSTI)

A set of multimodel twentieth-century climate simulations for phase 3 of the Coupled Model Intercomparison Project (CMIP3) is analyzed to assess the model reproducibility of the Pacific–Japan (PJ) teleconnection pattern. It is the dominant low-...

Yu Kosaka; Hisashi Nakamura

2011-08-01T23:59:59.000Z

349

Comparison of Moist Static Energy and Budget between the GCM-Simulated Madden–Julian Oscillation and Observations over the Indian Ocean and Western Pacific  

Science Conference Proceedings (OSTI)

The moist static energy (MSE) anomalies and MSE budget associated with the Madden–Julian oscillation (MJO) simulated in the Iowa State University General Circulation Model (ISUGCM) over the Indian and Pacific Oceans are compared with observations. ...

Xiaoqing Wu; Liping Deng

2013-07-01T23:59:59.000Z

350

Mountain Waves in the Tropical Pacific Atmosphere: A Comparison of Vertical Wind Fluctuations over Pohnpei and Christmas Island Using VHF Wind Profilers  

Science Conference Proceedings (OSTI)

We compare vertical wind fluctuations observed by VHF radar wind profilers in the tropical troposphere over a large, mountainous island (Pohnpei, at 7°N, 158°E) and a large, low-profile atoll (Christmas Island, at 2°N, 157°W). The major ...

Ben B. Balsley; David A. Carter

1989-09-01T23:59:59.000Z

351

Union Pacific PowerPoint Specs  

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

Union Pacific Union Pacific Rail Transportation Union Pacific Rail Transportation Rodger Dolson September 2005 Rodger Dolson September 2005 Outline Outline * Union Pacific Overview * Operating Environment * Future Plans * Hazardous Materials * Routes * Dedicated Service * Summary * Union Pacific Overview * Operating Environment * Future Plans * Hazardous Materials * Routes * Dedicated Service * Summary Union Pacific Railroad Union Pacific Railroad Northern Region Northern Region Western Region Western Region Southern Region Southern Region Central Region Central Region Union Pacific Fast Facts Union Pacific Fast Facts Miles of Track 32,832 Employees 48,000 Annual Payroll $3.3 B Purchases Made $3.1 B Locomotives 7,861 Freight Cars 87,497 Safety Safety Employee 1999 2005 YTD 55.1% 1999 2005 YTD 1999 2005 YTD 40.6% 34.8% Public

352

Eastern North Pacific Hurricane Season of 2009  

Science Conference Proceedings (OSTI)

The 2009 eastern North Pacific hurricane season had near normal activity, with a total of 17 named storms, of which seven became hurricanes and four became major hurricanes. One hurricane and one tropical storm made landfall in Mexico, directly ...

Todd B. Kimberlain; Michael J. Brennan

2011-06-01T23:59:59.000Z

353

Eastern North Pacific Hurricane Season of 2011  

Science Conference Proceedings (OSTI)

Overall activity during the 2011 eastern North Pacific hurricane season was near average. Of the 11 tropical storms that formed, 10 became hurricanes and 6 reached major hurricane strength (category 3 or stronger on the Saffir–Simpson hurricane ...

Eric S. Blake; Todd B. Kimberlain

2013-05-01T23:59:59.000Z

354

Eastern North Pacific Hurricane Season of 2006  

Science Conference Proceedings (OSTI)

The hurricane season of 2006 in the eastern North Pacific basin is summarized, and the individual tropical cyclones are described. Also, the official track and intensity forecasts of these cyclones are verified and evaluated. The 2006 eastern ...

Richard J. Pasch; Eric S. Blake; Lixion A. Avila; John L. Beven; Daniel P. Brown; James L. Franklin; Richard D. Knabb; Michelle M. Mainelli; Jamie R. Rhome; Stacy R. Stewart

2009-01-01T23:59:59.000Z

355

Eastern North Pacific Hurricane Season of 1999  

Science Conference Proceedings (OSTI)

The 1999 hurricane season in the eastern North Pacific is summarized, and individual tropical storms and hurricanes are described. Producing only nine named storms, the season tied 1996 as the second least active on record. Hurricane Dora was the ...

John L. Beven II; James L. Franklin

2004-04-01T23:59:59.000Z

356

Potential Vorticity Distribution in the North Pacific  

Science Conference Proceedings (OSTI)

Vertical sections and maps of potential vorticity ??1f??/?z for the North Pacific are presented. On shallow isopycnals, high potential vorticity is found in the tropics, subpolar gyre, and along the eastern boundary of the subtropical gyre, all ...

Lynne D. Talley

1988-01-01T23:59:59.000Z

357

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

358

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

359

ARM tropical pacific experiment (ATPEX): Role of cloud, water vapor and convection feedbacks in the coupled ocean/atmosphere system. Progress report, September 1, 1991--August 31, 1992  

SciTech Connect

We have initiated studies that include radiation model validation, improved treatment of the three-dimensional structure of cloud-radiation interactions, and sensitivity runs that will unravel the role of cloud-convection-radiation interactions in the Pacific Sear Surface Temperatures and the overlying Walker and Hadley circulation. The research program is divided into three phases: (1) radiation, (2) cloud parameterization issues; (3) feedback and ocean-atmosphere interactions.

Ramanathan, V.; Barnett, T.P.

1992-03-05T23:59:59.000Z

360

Impact of Enhanced Satellite-Derived Atmospheric Motion Vector Observations on Numerical Tropical Cyclone Track Forecasts in the Western North Pacific during TPARC/TCS-08  

Science Conference Proceedings (OSTI)

Enhanced atmospheric motion vectors (AMVs) produced from the geostationary Multifunctional Transport Satellite (MTSAT) are assimilated into the U.S. Navy Operational Global Atmospheric Prediction System (NOGAPS) to evaluate the impact of these ...

Howard Berger; Rolf Langland; Christopher S. Velden; Carolyn A. Reynolds; Patricia M. Pauley

2011-11-01T23:59:59.000Z

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

A Study of the Probability of Clear Line of Sight through Single-Layer Cumulus Cloud Fields in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

The plane-parallel horizontal (PPH) hypothesis used to approximate clouds in GCMs neglects three-dimensional cloud effects. Such effects can amount to as much as 20 W m?2 in longwave radiation. Several investigators have proposed accounting for ...

Patrick C. Taylor; Robert G. Ellingson

2008-11-01T23:59:59.000Z

362

Recent Summer Rainfall Increase and Surface Cooling over Northern Australia since the Late 1970s: A Response to Warming in the Tropical Western Pacific  

Science Conference Proceedings (OSTI)

Rainfall over northern Australia (NA) in austral summer is the largest water source of Australia. Previous studies have suggested a strong zonal-dipole trend pattern in austral summer rainfall since 1950, with rainfall increasing in northwest ...

Xiao-Feng Li; Jingjing Yu; Yun Li

2013-09-01T23:59:59.000Z

363

Impacts of an Extreme Early-Season Freeze Event in the Interior Pacific Northwest (30 October–3 November 2002) on Western Juniper Woodlands  

Science Conference Proceedings (OSTI)

In mid-autumn 2002, an exceptional 5-day cold spell affected much of the interior Pacific Northwest, with minimum temperatures averaging 13°C below long-term means (1953–2002). On 31 October, minimum temperature records occurred at 98 of the 106 ...

Paul A. Knapp; Peter T. Soulé

2005-07-01T23:59:59.000Z

364

Eastern North Pacific Hurricane Season of 2004  

Science Conference Proceedings (OSTI)

The 2004 eastern North Pacific hurricane season is reviewed. It was a below-average season in terms of number of systems and landfalls. There were 12 named tropical cyclones, of which 8 became hurricanes. None of the tropical storms or hurricanes ...

Lixion A. Avila; Richard J. Pasch; John L. Beven II; James L. Franklin; Miles B. Lawrence; Stacy R. Stewart

2006-03-01T23:59:59.000Z

365

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

366

Tropical Cyclone Lightning and Rapid Intensity Change  

Science Conference Proceedings (OSTI)

A large sample of Atlantic and eastern North Pacific tropical cyclone cases (2005–10) 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

367

An Observational Analysis of Tropical Cyclone Recurvature  

Science Conference Proceedings (OSTI)

Data for 21 years (1957–77) 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

368

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

369

Surface Meteorology and Air-Sea Fluxes in the Western Equatorial Pacific Warm Pool during the TOGA Coupled Ocean-Atmosphere Response Experiment  

Science Conference Proceedings (OSTI)

A major goal of the Coupled Ocean-Atmosphere Response Experiment (COARE) was to achieve significantly more accurate and complete descriptions of the surface meteorology and air-sea fluxes in the western equatorial warm pool region. Time series of ...

R. A. Weller; S. P. Anderson

1996-08-01T23:59:59.000Z

370

Seasonal Eddy Field Modulation of the North Pacific Subtropical Countercurrent: TOPEX/Poseidon Observations and Theory  

Science Conference Proceedings (OSTI)

Altimetry data from the first 5¼-yr TOPEX/Poseidon mission (October 1992–December 1997) are analyzed focusing on the North Pacific Subtropical Countercurrent (STCC) near the center of the Pacific’s western subtropical gyre. The multiyear ...

Bo Qiu

1999-10-01T23:59:59.000Z

371

Structure of Intraseasonal Kelvin Waves in the Equatorial Pacific Ocean  

Science Conference Proceedings (OSTI)

Previous studies have shown that intraseasonal Kelvin waves are a prominent mode of variability in the eastern and central equatorial Pacific. These waves appear to be remotely forced by wind variations in the western Pacific and propagate ...

Eric S. Johnson; Michael J. Mc Phaden

1993-04-01T23:59:59.000Z

372

A Model Investigation of the Role of Air–Sea Interaction in the Climatological Evolution and ENSO-Related Variability of the Summer Monsoon over the South China Sea and Western North Pacific  

E-Print Network (OSTI)

The summertime northeastward march of the climatological maritime monsoon over the South China Sea (SCS) and subtropical western North Pacific (WNP) is examined using the output from a 200-yr integration of a coupled atmosphere–ocean general circulation model (GCM). Increased cloud cover and surface wind speed during monsoon onset over the SCS in May–June reduce the incoming shortwave flux and enhance the upward latent heat flux at the ocean surface, thereby cooling the local sea surface temperature (SST). The resulting east–west gradient in the SST pattern, with lower temperature in the SCS and higher temperature in the WNP, is conducive to eastward migration of the monsoon precipitation over this region. Upon arrival of the precipitation center in the WNP in July–August, the local circulation changes lead to weakening of the mei-yu–baiu rainband near 308N. The subsequent increases in local shortwave flux and SST impart a northward tendency to the evolution of the WNP monsoon. Many of these model inferences are supported by a parallel analysis of various observational datasets. The modulation of the above climatological scenario by El Niño–Southern Oscillation (ENSO) events is investigated by diagnosing the output from the coupled GCM and from experiments based on the atmospheric component of this GCM with SST forcings being prescribed separately in the equatorial Pacific,

Ngar-cheung Lau; Mary; Jo Nath

2008-01-01T23:59:59.000Z

373

The South Pacific Meridional Mode: A Mechanism for ENSO-like Variability  

Science Conference Proceedings (OSTI)

In this study we investigate the connection between the South Pacific atmospheric variability and the tropical Pacific climate in models of different degrees of coupling between atmosphere and ocean. A robust mode of variability, defined as the ...

Honghai Zhang; Amy Clement; Pedro Di Nezio

374

Strengthening of the Pacific Equatorial Undercurrent in the SODA ocean reanalysis: mechanisms, ocean dynamics, and implications  

Science Conference Proceedings (OSTI)

Several recent studies utilizing global climate models predict that the Pacific Equatorial Undercurrent (EUC) will strengthen over the 21st century. Here we investigate historical changes in the tropical Pacific using the SODA ocean reanalysis ...

Elizabeth J. Drenkard; Kristopher B. Karnauskas

375

Observations of a Convectively Coupled Kelvin Wave in the Eastern Pacific ITCZ  

Science Conference Proceedings (OSTI)

A case study of a convectively coupled Kelvin wave in the eastern Pacific intertropical convergence zone (ITCZ) is presented, as observed during the 1997 Pan American Climate Studies (PACS) Tropical Eastern Pacific Process Study (TEPPS). The ...

Katherine H. Straub; George N. Kiladis

2002-01-01T23:59:59.000Z

376

Observations of Variability on Synoptic Timescales in the East Pacific ITCZ  

Science Conference Proceedings (OSTI)

Data obtained in the eastern Pacific intertropical convergence zone (ITCZ) during the Tropical Eastern Pacific Process Study (TEPPS) show a 3–6-day variability. The NOAA ship Ronald H. Brown collected surface meteorological observations, C-band ...

Yolande L. Serra; Robert A. Houze Jr.

2002-05-01T23:59:59.000Z

377

Convective Forcing in the Intertropical Convergence Zone of the Eastern Pacific  

Science Conference Proceedings (OSTI)

One of the goals of the East Pacific Investigation of Climate, year 2001 process study (EPIC2001), was to understand the mechanisms controlling the forcing of deep atmospheric convection over the tropical eastern Pacific. An intensive study was ...

David J. Raymond; G. B. Raga; Christopher S. Bretherton; John Molinari; Carlos López-Carrillo; Željka Fuchs

2003-09-01T23:59:59.000Z

378

Primary Modes and Predictability of Year-to-Year Snowpack Variations in the Western United States from Teleconnections with Pacific Ocean Climate  

Science Conference Proceedings (OSTI)

Snowpack, as measured on 1 April, is the primary source of warm-season streamflow for most of the western United States and thus represents an important source of water supply. An understanding of climate factors that influence the variability of ...

Gregory J. McCabe; Michael D. Dettinger

2002-02-01T23:59:59.000Z

379

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 October–December. Five regions with distinct behavior are analyzed separately. Only two show strong ...

Amin K. Dezfuli; Sharon E. Nicholson

2013-01-01T23:59:59.000Z

380

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 April–June 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

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

Observational Analysis of Tropical Cyclone Formation. Part I: Basic Description of Data Sets  

Science Conference Proceedings (OSTI)

Twelve composite data sets are constructed from rawinsonde data in the tropical northwest Pacific and tropical northwest Atlantic Oceans. Each data set is a composite average of approximately 80 individual disturbances. Four different types of ...

John L. McBride

1981-06-01T23:59:59.000Z

382

Rethinking Tropical Ocean Response to Global Warming: The Enhanced Equatorial Warming  

Science Conference Proceedings (OSTI)

The response of tropical Pacific SST to increased atmospheric CO2 concentration is reexamined with a new focus on the latitudinal SST gradient. Available evidence, mainly from climate models, suggests that an important tropical SST fingerprint to ...

Zhengyu Liu; Steve Vavrus; Feng He; Na Wen; Yafang Zhong

2005-11-01T23:59:59.000Z

383

Regional Observations during the Landfall of Tropical Cyclone Juliette (2001) in Baja California, Mexico  

Science Conference Proceedings (OSTI)

This paper presents an observational analysis of tropical cyclone landfall over the eastern Pacific Ocean. The tropical cyclone that developed during the 2001 season off the Mexican coast was named Juliette and made landfall in the Baja ...

Luis M. Farfán

2004-07-01T23:59:59.000Z

384

Radar, Passive Microwave, and Lightning Characteristics of Precipitating Systems in the Tropics  

Science Conference Proceedings (OSTI)

The bulk radar reflectivity structures, 85- and 37-GHz brightness temperatures, and lightning characteristics of precipitating systems in tropical Africa, South America, the east Pacific, and west Pacific are documented using data from the ...

E. R. Toracinta; Daniel J. Cecil; Edward J. Zipser; Stephen W. Nesbitt

2002-04-01T23:59:59.000Z

385

Intraseasonal Tropical Atmospheric Variability Associated with the Two Flavors of El Niño  

Science Conference Proceedings (OSTI)

The characteristics of intraseasonal tropical variability (ITV) associated with the two flavors of El Niño [i.e., the canonical or eastern Pacific (EP) El Niño and the Modoki or central Pacific (CP) El Niño] are documented using composite and ...

Daria Gushchina; Boris Dewitte

2012-11-01T23:59:59.000Z

386

A Case of Downstream Baroclinic Development over Western North America  

Science Conference Proceedings (OSTI)

Numerical simulations have been made of the initiation of a strong ridge-trough system over western North America and the eastern Pacific (the terminus of the Pacific storm track), with the objective of determining the extent to which downstream ...

I. Orlanski; J. Sheldon

1993-11-01T23:59:59.000Z

387

Interannual Dynamics and Thermodynamics of the Indo–Pacific Oceans  

Science Conference Proceedings (OSTI)

A global ocean circulation model, driven by observed interannual fluxes, is used to gain insight into how sea surface temperature anomalies (SSTAs, i.e., variations from the mean seasonal signal) in the tropical and subtropical Indian and Pacific ...

A. Schiller; J. S. Godfrey; P. C. McIntosh; G. Meyers; R. Fiedler

2000-05-01T23:59:59.000Z

388

The Southeast Pacific Warm Band and Double ITCZ  

Science Conference Proceedings (OSTI)

The east Pacific double intertropical convergence zone (ITCZ) in austral fall is investigated with particular focus on the growing processes of its Southern Hemisphere branch. Satellite measurements from the Tropical Rainfall Measuring Mission (...

Hirohiko Masunaga; Tristan S. L’Ecuyer

2010-03-01T23:59:59.000Z

389

OVERVIEW OF TUNA FISHERIES IN THE WESTERN AND CENTRAL PACIFIC OCEAN, INCLUDING ECONOMIC CONDITIONS – 2011 WCPFC-SC8-2012/GN WP-1  

E-Print Network (OSTI)

This paper provides a broad description of the major fisheries in the WCPFC Statistical Area (WCP-CA) highlighting activities during the most recent calendar year (2011) and covering the most recent version of catch estimates by gear and species. The provisional total WCP–CA tuna catch for 2011 was estimated at 2,244,776 mt, the lowest since 2005 and 300,000 mt lower than the record in 2009 (2,544,679 mt); this catch represented 79 % of the total Pacific Ocean catch of 2,833,020 mt, and 55 % of the global tuna catch (the provisional estimate for 2011 is 4,077,814 mt, which is the lowest for 10 years). The 2011 WCP–CA catch of skipjack (1,540,189 mt – 69 % of the total catch) was only the fifth highest recorded and around 215,000 mt less than the record catch of 2009 (1,756,628 mt). The WCP–CA yellowfin catch for 2011 (430,506 mt – 19%) was the lowest since 1996 and more than 170,000 mt lower than the record catch taken in 2005 (602,892 mt) due to poor catches in the purse seine fishery. The WCP–CA bigeye catch for 2011 (151,533 mt – 7%) was close to the average for the past decade. The 2011 WCP–CA albacore catch (122,548 mt- 5%) was relatively stable and close to the average for the past decade. The 2011 WCP–CA albacore catch includes catches of north

Republic Of Korea; Peter Williams; Peter Terawasi

2012-01-01T23:59:59.000Z

390

The Mid-1970s Climate Shift in the Pacific and the Relative Roles of Forced versus Inherent Decadal Variability  

Science Conference Proceedings (OSTI)

A significant shift from cooler to warmer tropical Pacific sea surface temperatures (SSTs), part of a pattern of basinwide SST anomalies involved with a transition to the positive phase of the Interdecadal Pacific Oscillation (IPO), occurred in ...

Gerald A. Meehl; Aixue Hu; Benjamin D. Santer

2009-02-01T23:59:59.000Z

391

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

392

Skipjack tuna, Katsuwonus pelamis, are distributed throughout the Pacific  

E-Print Network (OSTI)

343 Skipjack tuna, Katsuwonus pelamis, are distributed throughout the Pacific Ocean in tropical estimated catches now exceed one million metric tons. In the eastern Pacific Ocean (EPO), skipjack tuna have and west of 105°W to about 125°W. Estimated annual catches of skipjack tuna during the 1988 to 1997 period

393

Mechanisms of Remote Tropical Surface Warming during El Niño  

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 Niño 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

394

Tropical Cyclone Motion. A Comparison of Theory and Observation  

Science Conference Proceedings (OSTI)

The analytic predictions of tropical cyclone motion by Holland are shown to be in very good agreement with observations in the Australian southwest Pacific region. These results indicate that a combined linear asymmetric advection and divergence ...

Greg J. Holland

1984-01-01T23:59:59.000Z

395

Ocean Dynamics, Thermocline Adjustment, and Regulation of Tropical SST  

Science Conference Proceedings (OSTI)

The role of tropical Pacific ocean dynamics in regulating the ocean response to thermodynamic forcing is investigated using an ocean general circulation model (GCM) coupled to a model of the atmospheric mixed layer. It is found that the basin ...

Richard Seager; Ragu Murtugudde

1997-03-01T23:59:59.000Z

396

A Low-Level Circulation in the Tropics  

Science Conference Proceedings (OSTI)

Deep convective tropical systems are strongly convergent in the midtroposphere. Horizontal wind measurements from a variety of rawinsonde arrays in the equatorial Pacific and Caribbean are used to calculate the mean dynamical divergence profiles ...

Ian Folkins; S. Fueglistaler; G. Lesins; T. Mitovski

2008-03-01T23:59:59.000Z

397

Initial Conditions for a General Circulation Model of Tropical Oceans  

Science Conference Proceedings (OSTI)

A general circulation model of the tropical Pacific Ocean, which realistically simulates El Niño of 1982–83, has been used to determine how different initial conditions affect the model. Given arbitrary initial conditions (not in equilibrium with ...

S. G. H. Philander; W. J. Hurlin; R. C. Pacanowski

1987-01-01T23:59:59.000Z

398

Lightning Distribution and Eyewall Outbreaks in Tropical Cyclones during Landfall  

Science Conference Proceedings (OSTI)

Cloud-to-ground lightning data and storm intensity data (winds and central pressure) for 33 northwest Pacific tropical cyclones were used to analyze lightning distributions during the period of landfall in China. Lightning activities varied ...

Wenjuan Zhang; Yijun Zhang; Dong Zheng; Xiuji Zhou

2012-11-01T23:59:59.000Z

399

Modes of Tropical Circulation, Southern Oscillation, and Sahel Rainfall Anomalies  

Science Conference Proceedings (OSTI)

This empirical investigation is devoted to the parsimonious description and diagnostic understanding of large-scale climate variability in the tropics. The role and importance of the Southern Oscillation (SO) over the Atlantic, eastern Pacific, ...

Klaus Wolter

1989-02-01T23:59:59.000Z

400

Eastern North Pacific Tropical Cyclones of 1983  

Science Conference Proceedings (OSTI)

A summary of the 1983 season is presented. Included are seasonal statistics, storm tracks and comparisons with activity in recent years.

E. B. Gunther; R. L. Cross

1984-07-01T23:59:59.000Z

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

Eastern North Pacific Tropical Cyclones of 1984  

Science Conference Proceedings (OSTI)

A summary of the 1984 season is presented. Included are season statistics, storm tracks and comparisons with activity in recent years.

E. B. Gunther; R. L. Cross

1985-08-01T23:59:59.000Z

402

Tropical Pacific impacts of convective momentum ... - Springer  

Science Conference Proceedings (OSTI)

MJO and monsoons, either directly by changing the atmospheric response to convection, or indirectly by altering the background climatology and ENSO. In fact

403

Eastern North Pacific Tropical Cyclones of 1981  

Science Conference Proceedings (OSTI)

A summary of the 1981 season is presented. Included are seasonal statistics, storm tracks and comparisons with activity in recent years.

Emil B. Gunther

1982-07-01T23:59:59.000Z

404

Eastern North Pacific Tropical Cyclones of 1980  

Science Conference Proceedings (OSTI)

A summary of the 1980 season is presented. Included are seasonal statistics, storm tracks and comparisons with activity in recent years.

Emil B. Gunther

1981-08-01T23:59:59.000Z

405

Eastern North Pacific Tropical Cyclones of 1979  

Science Conference Proceedings (OSTI)

A summary of the 1979 season is presented. Included are seasonal statistics, storm tracks and comparisons with activity in recent years.

Emil B. Gunther

1980-05-01T23:59:59.000Z

406

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

407

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

Science Conference Proceedings (OSTI)

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

D. E. Harrison; A. M. Chiodi

2009-02-01T23:59:59.000Z

408

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

Science Conference Proceedings (OSTI)

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

Kristopher B. Karnauskas; Antonio J. Busalacchi

2009-03-01T23:59:59.000Z

409

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

410

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

411

A Diagnostic Study of the Extratropical Precipitation Resulting from Tropical Cyclone Bola  

Science Conference Proceedings (OSTI)

This is the second of two papers on tropical storms entering middle latitudes in the southwest Pacific. This study focuses on the heavy rainfall associated with Tropical Cyclone Bola during 6–8 March 1988 following its passage from the tropics to ...

Mark R. Sinclair

1993-10-01T23:59:59.000Z

412

Pacific Cod  

Science Conference Proceedings (OSTI)

Physical Characteristics of Oils, Fats, and Waxes Cod, Pacific Specific Gravity (SG) 15.5/15.5°C 25/25°C Other SG Refractive Index (RI) 25°C 40°C Other RI Iodine Value Saponification Value Titer °C % Unsaponifiable Melti

413

Food Security in the Western US  

E-Print Network (OSTI)

Food Security in the Western US and Pacific Territories 23 Rural Connections Nov. 2009 By PeteR BaRcinas ADAP is tackling the food security implications of climate change, rising sea levels, and fuel costs Pacific (aDaP) Regional Food security and Sufficiency Project brings together community, local, state

414

Pacific Ethanol, Inc | Department of Energy  

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

Pacific Ethanol, Inc Pacific Ethanol, Inc Pacific Ethanol, Inc More Documents & Publications Pacific Ethanol, Inc Pacific Ethanol, Inc Pacific Ethanol, Inc...

415

Climate Variations and Changes in Mass of Three Glaciers in Western North America  

Science Conference Proceedings (OSTI)

Time series of net and seasonal mass balances for three glaciers in western North America, one in the Pacific Northwest and two in Alaska, show various relationships to Pacific hemisphere climate indexes. During the winter season the two coastal, ...

Steven M. Hodge; Dennis C. Trabant; Robert M. Krimmel; Thomas A. Heinrichs; Rod S. March; Edward G. Josberger

1998-09-01T23:59:59.000Z

416

Late Cretaceous through Paleogene Reconstruction of Pacific Deep-Water Circulation  

E-Print Network (OSTI)

A growing body of Nd isotope data derived from fish debris and Fe-Mn crusts suggests that the Pacific was characterized by deep-water mass formation in both the North and South Pacific during the Early Paleogene. However, the South Pacific source has not been identified to date. Here we present new fossil fish debris neodymium isotope data from the South Pacific and southern tropical Pacific Ocean Drilling Program and Deep Sea Drilling Project Sites 323, 463, 596, 865 and 869 (paleowater depths spanning 1500 to 5000m) to reconstruct the water mass composition over the time interval ~80 to ~24 Ma. The data indicate a relatively unradiogenic South Pacific water mass composition, and the composition of Nd increases with distance northward. The new tropical Pacific data are consistent with existing records from that region. Analyses of detrital sediment Nd isotopic composition, combined with the dissolved Nd composition recorded by fish debris, suggests that the South Pacific water mass convected in the Pacific sector of the Southern Ocean. We designate this water mass South Pacific Deep Water (SPDW). The Nd isotopic composition of SPDW is more radiogenic than initially hypothesized and the relatively small increase in isotopic composition (from ~-6 to ~-4) during the transit from the Southern Ocean to the tropical Pacific suggests a faster rate of overturning circulation during the greenhouse climate interval than previously thought.

Schubert, Jessica

2012-05-01T23:59:59.000Z

417

Monsoon Climate Variabilities International Pacific Research Center and Department of Meteorology, School of Ocean and Earth Science and Technology  

E-Print Network (OSTI)

Monsoon Climate Variabilities Tim Li International Pacific Research Center and Department, USA The Asian monsoon consists of three subcomponents, Indian monsoon (IM), East Asian monsoon (EAM), and western North Pacific monsoon (WNPM). All these submonsoon systems exhibit remarkable intraseasonal

Li, Tim

418

Trophic understanding of tunas of the Southwest Pacific Ocean  

E-Print Network (OSTI)

Trophic understanding of tunas of the Southwest Pacific Ocean WEALTH FROM OCEANS FLAGSHIP Jock Meeting, University of Hawaii November 2012 #12;Tunas and Their Fisheries: Safeguarding Sustainability Ménard, Michel Potier #12;Western subtropical/temperate Pacific: main tuna species Trophic understanding

Hawai'i at Manoa, University of

419

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

420

Long-Lead Prediction of Pacific SSTs via Bayesian Dynamic Modeling  

Science Conference Proceedings (OSTI)

Tropical Pacific sea surface temperatures (SSTs) and the accompanying El Niño–Southern Oscillation phenomenon are recognized as significant components of climate behavior. The atmospheric and oceanic processes involved display highly complicated ...

L. Mark Berliner; Christopher K. Wikle; Noel Cressie

2000-11-01T23:59:59.000Z

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

Weather and Forecasting Challenges in the Pacific Region of the National Weather Service  

Science Conference Proceedings (OSTI)

The large area of responsibility covered by the Pacific Region of the National Weather Service provides a unique set of challenges to operational forecasters. Extratropical, subtropical, and tropical meteorological phenomena on a wide range of ...

Kevin R. Kodama; Steven Businger

1998-09-01T23:59:59.000Z

422

Comparison of Two Satellite-based Rainfall Algorithms Using Pacific Atoll Raingage Data  

Science Conference Proceedings (OSTI)

Rainfall estimates for two simple satellite-based rainfall algorithms are verified over the tropical Pacific using a new method that incorporates sparsely distributed raingages. The resulting linear regression relationship between monthly areal ...

Mark L. Morrissey; J. Scott Greene

1993-02-01T23:59:59.000Z

423

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

Science Conference Proceedings (OSTI)

As part of the World Ocean Circulation Experiment, 306 autonomous floats were deployed in the tropical and South Pacific Ocean and 228 were deployed in the Indian Ocean to observe the basinwide circulation near 900-m depth. Mean velocities, ...

Russ E. Davis

2005-05-01T23:59:59.000Z

424

Development of a management regime for the eastern Pacific tuna fishery.  

E-Print Network (OSTI)

??Thesis – University of WashingtonThe eastern Pacific tropical tuna fishery has developed in the last seven decades from its antecedents in a small pole-and-line fishery for… (more)

Barrett, Izadore

2009-01-01T23:59:59.000Z

425

Why Are There Rossby Wave Maxima in the Pacific at 10°S and 13°N?  

Science Conference Proceedings (OSTI)

Observations indicate the existence of two bands of maximum thermocline depth variability centered at 10°S and 13°N in the tropical Pacific Ocean. The analysis of a numerical integration performed with the National Center for Atmospheric ...

Antonietta Capotondi; Michael A. Alexander; Clara Deser

2003-08-01T23:59:59.000Z

426

Pacific Decadal Variability in the View of Linear Equatorial Wave Theory  

Science Conference Proceedings (OSTI)

It has recently been proposed, within the framework of the linear shallow-water equations, that tropical Pacific decadal variability (PDV) can be accounted for by basin modes with eigenperiods of 10 to 20 yr, amplifying a midlatitude wind forcing ...

Julien Emile-Geay; Mark A. Cane

2009-01-01T23:59:59.000Z

427

Consolidation of Multimodel Forecasts by Ridge Regression: Application to Pacific Sea Surface Temperature  

Science Conference Proceedings (OSTI)

The performance of ridge regression methods for consolidation of multiple seasonal ensemble prediction systems is analyzed. The methods are applied to predict SST in the tropical Pacific based on ensembles from the Development of a European ...

Malaquias Peña; Huug van den Dool

2008-12-01T23:59:59.000Z

428

Meridional Circulation Cells and the Source Waters of the Pacific Equatorial Undercurrent  

Science Conference Proceedings (OSTI)

A 3½-layer model is used to study the meridional circulation cells that provide the source waters of the Pacific Equatorial Undercurrent (EUC). Its three active layers represent tropical, thermocline, and upper-intermediate waters, respectively, ...

Peng Lu; Julian P. McCreary Jr.; Barry A. Klinger

1998-01-01T23:59:59.000Z

429

Seasonal Forecasting in the Pacific Using the Coupled Model POAMA-2  

Science Conference Proceedings (OSTI)

The development of a dynamical model seasonal prediction service for island nations in the tropical South Pacific is described. The forecast model is the Australian Bureau of Meteorology's Predictive Ocean–Atmosphere Model for Australia (POAMA), a ...

Andrew Cottrill; Harry H. Hendon; Eun-Pa Lim; Sally Langford; Kay Shelton; Andrew Charles; David McClymont; David Jones; Yuriy Kuleshov

2013-06-01T23:59:59.000Z

430

North Pacific Decadal Variability and Climate Change in the IPCC AR4 Models  

Science Conference Proceedings (OSTI)

The two leading modes of North Pacific sea surface temperature (SST) and sea level pressure (SLP), as well as their connections to tropical variability, are explored in the 24 coupled climate models used in the Intergovernmental Panel on Climate ...

Jason C. Furtado; Emanuele Di Lorenzo; Niklas Schneider; Nicholas A. Bond

2011-06-01T23:59:59.000Z

431

Relationships among Lightning, Precipitation, and Hydrometeor Characteristics over the North Pacific Ocean  

Science Conference Proceedings (OSTI)

Lightning data from the Pacific Lightning Detection Network (PacNet) and Lightning Imaging Sensor (LIS) on the Tropical Rainfall Measuring Mission (TRMM) satellite were compared with TRMM precipitation radar products and latent heating and ...

Antti T. Pessi; Steven Businger

2009-04-01T23:59:59.000Z

432

Simulations of the Eastern North Pacific Intraseasonal Variability in CMIP5 GCMs  

Science Conference Proceedings (OSTI)

As a key component of tropical atmospheric variability, intraseasonal variability (ISV) over the eastern North Pacific Ocean (ENP) exerts pronounced influences on regional weather and climate. Since general circulation models (GCMs) are essential ...

Xianan Jiang; Eric D. Maloney; Jui-Lin F. Li; Duane E. Waliser

2013-06-01T23:59:59.000Z

433

Dynamics of Seasonal and Intraseasonal Variability in the Eastern Equatorial Pacific  

Science Conference Proceedings (OSTI)

Time series measurements from surface moored buoys in the eastern equatorial Pacific are analyzed for the period 1983–86. The data, collected as part of the EPOCS and TROPIC HEAT programs, consist of currents, temperatures, and winds on the ...

Michael J. McPhaden; Bruce A. Taft

1988-11-01T23:59:59.000Z

434

A Coupled Air–Sea Response Mechanism to Solar Forcing in the Pacific Region  

Science Conference Proceedings (OSTI)

The 11-yr solar cycle [decadal solar oscillation (DSO)] at its peaks strengthens the climatological precipitation maxima in the tropical Pacific during northern winter. Results from two global coupled climate model ensemble simulations of ...

Gerald A. Meehl; Julie M. Arblaster; Grant Branstator; Harry van Loon

2008-06-01T23:59:59.000Z

435

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

436

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

437

An Objective Method for Forecasting Tropical Cyclone Intensity Using Nimbus-5 Electrically Scanning Microwave Radiometer Measurements  

Science Conference Proceedings (OSTI)

An empirical analysis program, based on finding an optimal representation of the data, has been applied to 120 observations of twenty nine 1973 and 1974 North Pacific tropical cyclones. Each observation consists of a field of Nimbus-5 ...

Herbert E. Hunter; Edward B. Rodgers; William E. Shenk

1981-02-01T23:59:59.000Z

438

In Situ–Based Pseudo–Wind Stress Products for the Tropical Oceans  

Science Conference Proceedings (OSTI)

Quality wind stress fields are desired for a wide range of oceanographic and atmospheric studies. An overview is presented of the monthly quick-look and research-quality tropical ocean wind (pseudostress) products produced for the Pacific and ...

Shawn R. Smith; Jacques Servain; David M. Legler; James N. Stricherz; Mark A. Bourassa; James J. O'Brien

2004-07-01T23:59:59.000Z

439

The Christmas Island Wind Profiler: A Prototype VHF Wind-Profiling Radar for the Tropics  

Science Conference Proceedings (OSTI)

After a decade of development, VHF wind profilers are being used for atmospheric research at several locations in the tropical Pacific. A prototype 50-MHz wind profiler was installed on Christmas Island in 1985 and has operated continuously since ...

K. S. Gage; J. R. Mcafee; W. L. Ecklund; D. A. Carter; C. R. Williams; P. E. Johnston; A. C. Riddle

1994-02-01T23:59:59.000Z

440

Assessment of the Role of Aircraft Reconnaissance on Tropical Cyclone Analysis and Forecasting  

Science Conference Proceedings (OSTI)

The impact of aircraft reconnaissance on tropical cyclone (TC) observation and forecasting is assessed. The motivation for this assessment is the termination of Department of Defense (DOD) aircraft reconnaissance in the northwest Pacific in 1987 ...

William M. Gray; Charles Neumann; Ted L. Tsui

1991-12-01T23:59:59.000Z

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

Tropical Sensitivity of a Coupled Model to Specified ISCCP Low Clouds  

Science Conference Proceedings (OSTI)

The seasonal cycle of SST observed in the eastern equatorial Pacific is poorly simulated by many ocean–atmosphere coupled GCMs. This deficiency may be partly due to an incorrect prediction of tropical marine stratocumulus (MSc). To explore this ...

C. T. Gordon; A. Rosati; R. Gudgel

2000-07-01T23:59:59.000Z

442

On the Potential of VHF Wind Profilers for Studying Convective Processes in the Tropics  

Science Conference Proceedings (OSTI)

In this paper we provide a set of examples to demonstrate the potential of VHF radar wind profilers for studying tropical convection processes. Our examples were extracted from data obtained from the NOAA/CU Pacific Profiler Network, which has ...

B. B. Balsley; D. A. Carter; A. C. Riddle; W. L. Ecklund; K. S. Gage

1991-09-01T23:59:59.000Z

443

Estimation of Tropical Sea Level Anomaly by an Improved Kalman Filter  

Science Conference Proceedings (OSTI)

Kaiman filter theory and autoregressive time series are used to map sea level height anomalies in the tropical Pacific. Our Kalman filters are implemented with a linear state space model consisting of evolution equations for the amplitudes of ...

Ngai Hang Chan; Joseph B. Kadane; Robert N. Miller; Wilfredo Palma

1996-07-01T23:59:59.000Z

444

An Updated Climatology of Tropical Cyclone Impacts on the Southwestern United States  

Science Conference Proceedings (OSTI)

A dataset of 167 eastern North Pacific tropical cyclones (TCs) is investigated for potential impacts in the southwestern United States over the period 1989–2009 and evaluated in the context of a 30-yr climatology. The statistically significant ...

Kimberly M. Wood; Elizabeth A. Ritchie

2013-12-01T23:59:59.000Z

445

An updated climatology of tropical cyclone impacts on the southwestern United States  

Science Conference Proceedings (OSTI)

A dataset of 167 eastern North Pacific tropical cyclones (TCs) are investigated for potential impacts in the southwestern United States over the period 1989-2009 and evaluated in the context of a 30-yr climatology. The statistically significant ...

Kimberly M. Wood; Elizabeth A. Ritchie

446

Influence of Tropical Cyclones on Humidity Patterns over Southern Baja California, Mexico  

Science Conference Proceedings (OSTI)

The influence of tropical cyclone circulations in the distribution of humidity and convection over northwestern Mexico is investigated by analyzing circulations that developed in the eastern Pacific Ocean from 1 July to 21 September 2004. ...

Luis M. Farfán; Ira Fogel

2007-04-01T23:59:59.000Z

447

Transition between Suppressed and Active Phases of Intraseasonal Oscillations in the Indo-Pacific Warm Pool  

Science Conference Proceedings (OSTI)

Intraseasonal oscillations (ISOs) are important large-amplitude and large-scale elements of the tropical Indo-Pacific climate with time scales in the 20–60-day period range, during which time they modulate higher-frequency tropical weather. ...

P. A. Agudelo; J. A. Curry; C. D. Hoyos; P. J. Webster

2006-11-01T23:59:59.000Z

448

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

449

Past East Pacific Storm Tracks | Data.gov  

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

Past East Pacific Storm Tracks Past East Pacific Storm Tracks Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Past East Pacific Storm Tracks Dataset Summary Description The National Weather Service (NWS) maintains historical Eastern Pacific Ocean hurricane weather data in a format that can be exploited by Graphic Information System (GIS) software. Using KML/KMZ formats, it takes the numbers and words from the rows and columns in databases and spreadsheets and puts them on a map. This data file contains information about named and unnamed Eastern Pacific Ocean tropical storms and hurricanes from 1949 to 2006. Once downloaded, the file can be decompiled by decade and by year in a a KML/KMZ GIS viewer.

450

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 America’s 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

451

Barotropic Zonal Jets Induced by Islands in the Southwest Pacific  

Science Conference Proceedings (OSTI)

The oceanic circulation entering the tropical southwest Pacific (SWP) is dominated by the broad westward flow of the South Equatorial Current (SEC), which is forced by the trade winds. It has been argued that the numerous islands of the SWP are ...

Xavier Couvelard; Patrick Marchesiello; Lionel Gourdeau; Jerome Lefèvre

2008-10-01T23:59:59.000Z

452

The Heat Balance of the Western Hemisphere Warm Pool  

Science Conference Proceedings (OSTI)

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

David B. Enfield; Sang-ki Lee

2005-07-01T23:59:59.000Z

453

Remote Sea Surface Temperature Variations during ENSO: Evidence for a Tropical Atmospheric Bridge  

Science Conference Proceedings (OSTI)

In an El Niño event, positive SST anomalies usually appear in remote ocean basins such as the South China Sea, the Indian Ocean, and the tropical North Atlantic approximately 3 to 6 months after SST anomalies peak in the tropical Pacific. Ship ...

Stephen A. Klein; Brian J. Soden; Ngar-Cheung Lau

1999-04-01T23:59:59.000Z

454

Kurt M. Schaefer Inter-American Tropical Tuna Commission. Scripps Institution of Oceanography  

E-Print Network (OSTI)

Kurt M. Schaefer Inter-American Tropical Tuna Commission. Scripps Institution of Oceanography 8604 of yellowfin tuna, Thunnus albacares, near Clipperton Atoll in the eastern Pacific Ocean 98 Abstract.-Spawning of yellowfin tuna, Thunnus albacares, around Clipperton Atoll, in the eastern Pacific Ocean, occurred between

455

Mechanisms of Meridional Teleconnection Observed between a Summer Monsoon System and a Subtropical Anticyclone. Part I: The Pacific–Japan Pattern  

Science Conference Proceedings (OSTI)

Summertime atmospheric circulation over the midlatitude western North Pacific (WNP) is influenced by anomalous convective activity near the Philippines. This meridional teleconnection, observed in monthly anomalies and known as the Pacific–Japan (...

Yu Kosaka; Hisashi Nakamura

2010-10-01T23:59:59.000Z

456

A Model Study of Oceanic Mechanisms Affecting Equatorial Pacific Sea Surface Temperature during the 1997–98 El Niño  

Science Conference Proceedings (OSTI)

In this study, the processes affecting sea surface temperature variability over the 1992–98 period, encompassing the very strong 1997–98 El Niño event, are analyzed. A tropical Pacific Ocean general circulation model, forced by a combination of ...

Jérôme Vialard; Christophe Menkes; Jean-Philippe Boulanger; Pascale Delecluse; Eric Guilyardi; Michael J. McPhaden; Gurvan Madec

2001-07-01T23:59:59.000Z

457

Origin of Pacific Multidecadal Variability in Community Climate System Model, Version 3 (CCSM3): A Combined Statistical and Dynamical Assessment  

Science Conference Proceedings (OSTI)

Observations indicate that Pacific multidecadal variability (PMV) is a basinwide phenomenon with robust tropical–extratropical linkage, though its genesis remains the topic of much debate. In this study, the PMV in the Community Climate System ...

Yafang Zhong; Zhengyu Liu; R. Jacob

2008-01-01T23:59:59.000Z

458

An Examination of the Clear-Sky Solar Absorption over the Central Equatorial Pacific: Observations versus Models  

Science Conference Proceedings (OSTI)

Measurements of downward surface solar radiation (global radiation) and albedo taken during the Central Equatorial Pacific Experiment (CEPEX) are used to obtain baseline estimates for two quantities concerning the radiation budget of the tropical ...

William C. Conant; V. Ramanathan; Francisco P. J. Valero; Jens Meywerk

1997-08-01T23:59:59.000Z

459

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":""}]}

460

The Inter-American Tropical Tuna Commission (IATTC) was established  

E-Print Network (OSTI)

49 The Inter-American Tropical Tuna Commission (IATTC) was established by an international convention in 1950 and is responsible for the conservation of tunas and management of fisheries for tunas and other species taken by tuna-fishing vessels in the eastern Pacific Ocean (EPO). Such conser- vation

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

The Optimal Growth of Tropical Sea Surface Temperature Anomalies  

Science Conference Proceedings (OSTI)

It is argued from SST observations for the period 1950–90 that the tropical Indo-Pacific ocean-atmosphere system may be described as a stable linear dynamical system driven by spatially coherent Gaussian white noise. Evidence is presented that ...

Cécile Penland; Prashant D. Sardeshmukh

1995-08-01T23:59:59.000Z

462

An Objective Satellite-Based Tropical Cyclone Size Climatology  

Science Conference Proceedings (OSTI)

Storm-centered infrared (IR) imagery of tropical cyclones (TCs) is related to the 850-hPa mean tangential wind at a radius of 500 km (V500) calculated from six-hourly global numerical analyses for North Atlantic and eastern North Pacific TCs 1995-...

John A. Knaff; Scott P. Longmore; Debra A. Molenar

463

Self-Adapting Analog Ensemble Predictions of Tropical Cyclone Tracks  

Science Conference Proceedings (OSTI)

An analog model is used to predict the tropical cyclone tracks in the Atlantic and east Pacific basins. The model is self-adapting in its search of ensembles of optimal historic analogs by creating a norm that minimizes the forecast error ...

Oliver Sievers; Klaus Fraedrich; Christoph C. Raible

2000-10-01T23:59:59.000Z

464

Aspects of Geostrophic Adjustment during Tropical Ocean Data Assimilation  

Science Conference Proceedings (OSTI)

Subsurface temperature data from the ship-of-opportunity network in the tropical Pacific Ocean was assimilated into a simple reduced-gravity model. A large initialization shock was found to occur in the model which takes the form of equatorially ...

Andrew M. Moore

1989-04-01T23:59:59.000Z

465

Boundary Layer Depth, Entrainment, and Decoupling in the Cloud-Capped Subtropical and Tropical Marine Boundary Layer  

Science Conference Proceedings (OSTI)

Estimates of marine boundary layer (MBL) depth and degree of decoupling for two regions of the subtropical and tropical east Pacific are presented using satellite observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the ...

Robert Wood; Christopher S. Bretherton

2004-09-01T23:59:59.000Z

466

The sensitivity of tropical convective precipitation to the direct radiative forcings of black carbon aerosols emitted from major regions  

E-Print Network (OSTI)

Previous works have suggested that the direct radiative forcing (DRF) of black carbon (BC) aerosols are able to force a significant change in tropical convective precipitation ranging from the Pacific and Indian Ocean to ...

Wang, Chien

467

Observations and Forecasts from the Landfall of Tropical Cyclones John, Lane, and Paul (2006) over Northwestern Mexico  

Science Conference Proceedings (OSTI)

This study focuses on track and intensity changes of three tropical cyclones that, during the season of 2006, developed in the eastern North Pacific basin and made landfall over northwestern Mexico. Observational datasets, including satellite and ...

Luis M. Farfán; Rosario Romero-Centeno; G. B. Raga

2012-12-01T23:59:59.000Z

468

Pacific Ethanol, Inc | Department of Energy  

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

Pacific Ethanol, Inc Pacific Ethanol, Inc Pacific Ethanol, Inc More Documents & Publications RSE Pulp & Chemical, LLC (Subsidiary of Red Shield Environmental, LLC) Pacific...

469

Asia Pacific Partnership on Clean Development and Climate | Open Energy  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Asia Pacific Partnership on Clean Development and Climate Jump to: navigation, search Name Asia Pacific Partnership on Clean Development and Climate Agency/Company /Organization Asia Pacific Partnership Partner National Energy Technology Laboratory Sector Energy Focus Area Energy Efficiency, Renewable Energy Topics Policies/deployment programs, Resource assessment, Pathways analysis, Background analysis, Technology characterizations Website http://www.asiapacificpartners Program Start 2006 UN Region Central Asia, "East Asia" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "SE Asia" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property., "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

470

Implementation of the Clean Development Mechanism in Asia and the Pacific |  

Open Energy Info (EERE)

Implementation of the Clean Development Mechanism in Asia and the Pacific Implementation of the Clean Development Mechanism in Asia and the Pacific Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Implementation of the Clean Development Mechanism in Asia and the Pacific Agency/Company /Organization: United Nations Economic and Social Commission for Asia and the Pacific Sector: Energy Focus Area: Energy Efficiency, Industry Topics: Implementation, Policies/deployment programs Resource Type: Guide/manual, Lessons learned/best practices Website: www.unescap.org/esd/publications/CDM.pdf UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

471

Energy Security and Sustainable Development in Asia and the Pacific | Open  

Open Energy Info (EERE)

Energy Security and Sustainable Development in Asia and the Pacific Energy Security and Sustainable Development in Asia and the Pacific Jump to: navigation, search Tool Summary Name: Energy Security and Sustainable Development in Asia and the Pacific Agency/Company /Organization: United Nations Economic and Social Commission for Asia and the Pacific Sector: Energy Focus Area: Biomass, Geothermal, Solar, Wind, Economic Development Topics: Co-benefits assessment, - Energy Security Resource Type: Publications Website: www.unescap.org/esd/energy/publications/theme_study/themstudy.pdf UN Region: Central Asia, Eastern Asia, South-Eastern Asia, "Pacific" is not in the list of possible values (Eastern Africa, Middle Africa, Northern Africa, Southern Africa, Western Africa, Caribbean, Central America, South America, Northern America, Central Asia, Eastern Asia, Southern Asia, South-Eastern Asia, Western Asia, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Australia and New Zealand, Melanesia, Micronesia, Polynesia, Latin America and the Caribbean) for this property.

472

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

473

Pacific Northwest National Laboratory  

NLE Websites -- All DOE Office Websites

Pacific Northwest National Laboratory Skip to Main Content U.S. Department of Energy Search PNNL Search PNNL Home About Research Publications Jobs News Contacts Featured Research...

474

Modeling Ozone Formation and Transport in the Cascadia Region of the Pacific Northwest  

Science Conference Proceedings (OSTI)

The rapidly growing Cascadia region of the Pacific Northwest, consisting of western Washington, Oregon, and southwestern British Columbia, has experienced surface ozone concentrations that exceed federally mandated standards. A modeling system ...

Mike Barna; Brian Lamb; Susan O’Neill; Hal Westberg; Cris Figueroa-Kaminsky; Sally Otterson; Clint Bowman; Jennifer DeMay

2000-03-01T23:59:59.000Z

475

Heat Balance in the Pacific Warm Pool Atmosphere during TOGA COARE and CEPEX  

Science Conference Proceedings (OSTI)

The atmosphere above the western equatorial Pacific warm pool (WP) is an important source for the dynamic and thermodynamic forcing of the atmospheric general circulation. This study uses a high-resolution reanalysis and several observational ...

Baijun Tian; Guang Jun Zhang; V. Ramanathan

2001-04-01T23:59:59.000Z

476

The Annual Cycle of Circulation of the Southwest Subtropical Pacific, Analyzed in an Ocean GCM  

Science Conference Proceedings (OSTI)

An ocean GCM, interpreted in light of linear models and sparse observations, is used to diagnose the dynamics of the annual cycle of circulation in the western boundary current system of the southwest Pacific Ocean. The simple structure of annual ...

William S. Kessler; Lionel Gourdeau

2007-06-01T23:59:59.000Z

477

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

478

The framework and tools for the Western Area Power Administration`s Environmental Risk Management Program  

SciTech Connect

Pacific Northwest Laboratory (PNL) is working with various government agencies to develop and implement environmental risk management programs. One such program is being developed for the U.S. Department of Energy`s Western Area Power Administration (Western). In this paper, we describe the risk framework and assessment tools being developed by Western and PNL to help Western`s management staff make effective and defensible decisions on issues that involve environmental risk.

Di Massa, F.V.; Glantz, C.S. [Pacific Northwest Lab., Richland, WA (United States); Roybal, A.L. [Western Area Power Administration, Golden, CO (United States)

1995-06-01T23:59:59.000Z

479

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

480

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 900–200-hPa wind shear was ...

Christopher A. Davis; Lance F. Bosart

2003-11-01T23:59:59.000Z

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

482

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

483

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

484

PACIFIC NORTHWEST CYBER SUMMIT  

SciTech Connect

On March 26, 2013, the Snohomish County Public Utility District (PUD) and the U.S. Department of Energy’s (DOE’s) Pacific Northwest National Laboratory (PNNL) jointly hosted the Pacific Northwest Cyber Summit with the DOE’s Office of Electricity Delivery and Energy Reliability, the White House, Washington State congressional delegation, Washington State National Guard, and regional energy companies.

Lesperance, Ann M.; Matlock, Gordon W.; Becker-Dippmann, Angela S.; Smith, Karen S.

2013-08-07T23:59:59.000Z

485

Pacific Ethanol, Inc | Department of Energy  

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

Pacific Ethanol, Inc Pacific Ethanol, Inc RSE Pulp & Chemical, LLC (Subsidiary of Red Shield Environmental, LLC)...

486

Microbase Cloud Products and Associated Heating Rates in the...  

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

Microbase Cloud Products and Associated Heating Rates in the Tropical Western Pacific J. H. Mather and S. A. McFarlane Pacific Northwest National Laboratory Richland, Washington...

487

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

488

Environmental Dynamical Control of Tropical Cyclone Intensity—An 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

489

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

490

Dynamical and Precipitation Structures of Poleward-Moving Tropical Cyclones in Eastern Canada, 1979–2005  

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

491

Three Recent Flavors of Drought in the Pacific Northwest  

Science Conference Proceedings (OSTI)

In common with much of the western United States, the Pacific Northwest (defined in this paper as Washington and Oregon) has experienced an unusual number of droughts in the past decade. This paper describes three of these droughts in terms of ...

Karin A. Bumbaco; Philip W. Mote

2010-09-01T23:59:59.000Z

492

An Examination of Some ENSO Mechanisms Using Interannual Sea Level at the Eastern and Western Equatorial Boundaries and the Zonally Averaged Equatorial Wind  

Science Conference Proceedings (OSTI)

Theory suggests that the interannual equatorial Kelvin wave sea level (?W) in the western Pacific should be directly proportional to the interannual western Australian sea level, and the interannual equatorial Kelvin wave sea level (?E) in the ...

Bin Li; Allan J. Clarke

1994-03-01T23:59:59.000Z

493

Diurnal Cycle of Shallow and Deep Convection for a Tropical Land and an Ocean Environment and Its Relationship to Synoptic Wind Regimes  

Science Conference Proceedings (OSTI)

The characteristics of shallow and deep convection during the Tropical Rainfall Measuring Mission/Large-Scale Biosphere–Atmosphere Experiment in Amazonia (TRMM/LBA) and the Eastern Pacific Investigation of Climate Processes in the Coupled Ocean–...

L. Gustavo Pereira; Steven A. Rutledge

2006-10-01T23:59:59.000Z

494

Rainforest composition and succession on a South Pacific island  

E-Print Network (OSTI)

Interest in the dynamics and ecology of tropical forests has increased in recent years. However, the vast majority of studies undertaken by researchers in tropical environments have focused on neotropical forests and ignored old-world paleotropical forests. The rainforest on the Island of Tutuila, American Samoa, is a mixed-species paleotropical rainforest. Because much of the island is still covered by mature, native tropical rainforest, Tutuila represents one of the best locations to study paleotropical rainforest in the South Pacific. This thesis reports on the tree composition of different forest communities on Tutuila and employs indirect ordination tools such as detrended correspondence analysis (DCA) to describe two previously unidentified forest communities. This thesis also identifies the successional pathway followed by the rainforest on Tutuila as it regenerates in abandoned agricultural sites and reverts into mature forest stands.

Heggie, Travis Wade

2001-01-01T23:59:59.000Z

495

Pacific | OpenEI  

Open Energy Info (EERE)

Pacific Pacific Dataset Summary Description This dataset comes from the Electric Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This data reflects Table 9, and contains only the reference case. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO EIA Energy Consumption Pacific Data application/vnd.ms-excel icon AEO2011: Energy Consumption by Sector and Source - Pacific- Reference Case (xls, 297.5 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset

496

The Penetration of Tritium into the Tropical Pacific  

Science Conference Proceedings (OSTI)

The persistence of subsurface tritium maxima coincident with the Equatorial Currents is used to show that advection along isopycnals by the mean wind-driven circulation is the dominant process in the at most 14-year time scale for the penetration ...

Rana A. Fine; William H. Peterson; H. Gote Ostlund

1987-05-01T23:59:59.000Z

497

Tropical Pacific Interannual Variability and CO2 Climate Change  

Science Conference Proceedings (OSTI)

In this paper, an attempt is made to estimate possible sensitivities of El Niño-Southern Oscillation (ENSO)-related effects in a climate with increased carbon dioxide (CO2). To illustrate this sensitivity, results are shown from two different ...

Gerald A. Meehl; Grant W. Branstator; Warren M. Washington

1993-01-01T23:59:59.000Z

498

How ocean color can steer Pacific tropical cyclones  

E-Print Network (OSTI)

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

Gnanadesikan, Anand

499

Ocean dynamics and thermodynamics in the tropical Indo- Pacific region  

E-Print Network (OSTI)

II Observations of the 2004 and 2006 Indian OceanOceans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .magnitudes determined from ocean-bottom pressure gauge data

Drushka, Kyla

2011-01-01T23:59:59.000Z

500

Spectral longwave emission in the tropics: FTIR measurements 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 Pacific Experiment. The instrument operated throughout a Pacific Ocean crossing, beginning on 7 March 1993 in Honiara, Solomon Islands, and ending on 29 March 1993 in Los Angeles, and recorded longwave emission spectra under atmospheres associated with sea surface temperatures ranging from 291.0 to 302.8 K. Precipitable water vapor abundances ranged from 1.9 to 5.5 column centimeters. Measured emission spectra (downwelling zenith radiance) covered the middled infrared (5-20 {mu}m) with one inverse centimeter spectral resolution. FTIR measurements made under an entirely clear field of view are compared with spectra generated by LOWTRAN 7 and MODTRAN 2, as well as downwelling flux calculated by the NCAR COmmunity Climate Model (CCM-2) radiation code, using radiosonde profiles as input data for these calculations. In the spectral interval 800-1000 cm{sup -1}, these comparisons show a discrepance between FTIR data and MODTRAN 2 having an overall variability of 6-7 mW m{sup -2} sr{sup -1} cm and a concave shape that may be related to the representation of water vapor continuum emission in MODTRAN 2. Another discrepancy appears in the spectral interval 1200-1300 cm{sup -1}, whether MODTRAN 2 appears to overestimate zenith radiance by 5 mW m{sup -2} sr-1 cm. These discrepancies appear consistently; however, they become only slightly larger at the highest water vapor abundances. Because these radiance discrepancies correspond to broadband (500-2000 cm{sup -1}) flux uncertainties of around 3 W m{sup -2}, there appear to be no serious inadequacies with the performance of MODTRAN 2 or LOWTRAN 7 at high atmospheric temperatures and water vapor abundances. 23 refs., 10 figs.

Lubin, D.; Cutchin, D.; Conant, W. [Univ. of California, La Jolla, CA (United States)] [Univ. of California, La Jolla, CA (United States); Grassl, H. [Institut fuer Meteorologie, Hamburg (Germany)] [Institut fuer Meteorologie, Hamburg (Germany); Schmid, U.; Biselli, W. [Universitaet Hamburg, Hamburg (Germany)] [Universitaet Hamburg, Hamburg (Germany)

1995-02-01T23:59:59.000Z