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Bulk Recycling Models with Incomplete Vertical Mixing. Part II: Precipitation Recycling in the Amazon Basin
2006
Journal of Climate
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Since, in a thermally driven tropi- cal atmospheric circulation system, energy input is nec- essary to induce large-scale circulation that sustains rainfall, a consistent treatment of the column and sur ...
It is seen that estimates by Budyko’s model are close to the estimates by the general model for winter months when the pre- dominantly easterly wind exists over all the basin, con- sistent with the parallel ...
doi:10.1175/jcli3688.1
fatcat:botrqi6hdfblbb4xi76zd5hpmu
On the Origin of the Bolivian High and Related Circulation Features of the South American Climate
1997
Journal of the Atmospheric Sciences
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Results from the linear model indicate that these two features are generated in response to precipitation over the Amazon basin, central Andes, and South Atlantic convergence zone, with African precipitation ...
The climatological structure in the upper-tropospheric summertime circulation over South America is diagnosed using a GCM (with and without South American topography), a linear model, and observational ...
Figures were produced using the Grid Analysis and Display System provided by the Center for Ocean-Land-Atmosphere Interactions at the University of Maryland. This work represents a portion of J. D. ...
doi:10.1175/1520-0469(1997)054<0656:otootb>2.0.co;2
fatcat:7jmtsvpqsfbavl2yrpp5or7lpu
Resonant excitation of the quasi-decadal oscillation by the 11-year signal in the Sun's irradiance
2008
Journal of Geophysical Research
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In the present study, we likewise force a fully coupled ocean-atmosphere general circulation model (i.e., Fast Ocean-Atmosphere Model (FOAM)) of Jacob et al. (2001) , adding an 11-year-period cosine signal ...
In earlier attempts to explain this association, a conceptual ocean-atmosphere coupled model of the DAO mechanism in the tropical Pacific Basin was driven by 11-year-period solar forcing, producing a QDO ...
Warren White is supported by the National Aeronautics and Space Administration (NASA) under contract JPL1205106 and by the Scripps Institution of Oceanography at the University of California, San Diego ...
doi:10.1029/2006jc004057
fatcat:swtefkn7unfk3jikl6la6s553q
Page 1031 of Journal of Climate Vol. 18, Issue 7
[page]
2005
Journal of Climate
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Covey, C., and Coauthors, 2000: The seasonal cycle in coupled ocean—atmosphere general circulation models. Climate Dyn., 17, 775-787.
——, K. M. AchutaRao, U. Cubasch, P. Jones, S. J. Lambert, M. E. ...
., and Coauthors, 1998: An overview of the results of the Atmospheric Model Intercomparison Project (AMIP I). Bull. Amer. Meteor. Soc., 73, 1962-1970.
Gordon, C., C. Cooper, C. A. Senior, H. T. ...
Relative Importance of the Annual Cycles of Sea Surface Temperature and Solar Irradiance for Tropical Circulation and Precipitation: A Climate Model Simulation Study
2002
Earth Interactions
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the influences of the annual cycles of solar irradiation and sea surface temperatures (SSTs) on the annual cycle of circulation and precipitation. ...
A recent version of the Goddard Earth Observing System GCM which contains several upgrades to the model's prognostic cloud physics and microphysics as well as snow and ice hydrology, was used to isolate ...
The funding support of our simulation studies research by NASA Headquarters under the GMAP program helped the participation of GKW. The NASA Oceanography Program supported VM. ...
doi:10.1175/1087-3562(2002)006<0001:riotac>2.0.co;2
fatcat:y2sdpx5ywfdt3prh6imsuqsf4q
The architecture of the earth system modeling framework
2004
Computing in science & engineering (Print)
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The project is a multi-institutional, crossdisciplinary collaboration that includes many of the largest Earth science modeling centers in the US; the NASA Computational Technologies Program is funding ...
Most notably, current practices hinder broad com-munity sharing of software renditions of Earth system modeling algorithms. ...
In Figure 1 , this corresponds to connecting oceanbiogeochemistry configurations in the Massachusetts Institute of Technology (MIT) General Circulation Model (MITgcm, Figure 1c ) with elements of the ...
doi:10.1109/mcise.2004.1255817
fatcat:csh7blyygzhcbniimvztdhghfm
Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign
2020
Atmospheric Chemistry and Physics
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As a result, daily average values of ASRF of −19 W m−2 at the top of the atmosphere and −36 W m−2 at the bottom of the atmosphere were derived from the simulations conducted during the DAO-K campaign. ...
Furthermore, the Weather Research and Forecasting model with Chemistry (WRF-Chem), with assimilation of measurements of the aerosol optical depth and particulate matter (PM) mass concentrations of particles ...
conditions, and the Rapid Radiative Transfer Model for General Circulation Models (RRTMG) for solar and terrestrial radiation (Lin et al., 1983; Mlawer et al., 1997; Chen and Dud-hia, 2001; Hong et al ...
doi:10.5194/acp-20-10845-2020
doaj:9d9fd3a47d3c4782ac17fa7053a7e828
fatcat:btaxuhevhnd67jzravpgas5ibu
Generating efficient derivative code with TAF
2005
Future generations computer systems
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For a configuration that simulates the Euler flow around a NACA airfoil, TAF has generated the tangent linear and adjoint models as well as the second derivative (Hessian) code. ...
Owing to TAF's capability of generating efficient adjoints of iterative solvers, the derivative code has a high performance: Running both the solver and its adjoint requires 3.4 times as long as running ...
Ricardo Todling, S-J Lin and their colleagues at the Data Assimilation Office for the good collaboration in our joint work on the derivative code of the NASA-DAO GCM. ...
doi:10.1016/j.future.2004.11.003
fatcat:bgchrrwu5jdhhgjznd7qgo7jam
Uncertainties in global aerosol simulations: Assessment using three meteorological data sets
2007
Journal of Geophysical Research
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Three meteorological data sets available from the NASA Goddard Data Assimilation Office (DAO) general circulation model (GCM), the Goddard Institute for Space Studies (GISS) GCM, version II' and the NASA ...
The global annual average anthropogenic and all-sky aerosol direct forcing at the top-of-the atmosphere is estimated to be À0.75, À0.35, and À0.40 W m À2 for DAO, FVGCM, and GISS fields, respectively. ...
This work is supported by the NASA Global ...
doi:10.1029/2006jd008216
fatcat:p3ncnyhtabglhpcy42t667thr4
Stratification in White Dwarf Atmospheres
[chapter]
1991
Evolution of Stars: The Photospheric Abundance Connection
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Between 15000 and 20000 Κ the group of DBA stars show traces of hydrogen in an almost pure helium atmosphere. iv. ...
At the high end of the temperature sequence of hydrogen dorninated spectra (50000 to 60000 K) the class of DAO objects shows composite spectra with H dominant but He lines clearly visible. ii. ...
Acknowledgements: This work was supported in part by grants from the National Aeronautics and Space Administration (NAG5-990) and from the National Science Foundation (AST-8814711). ...
doi:10.1007/978-94-011-3416-3_37
fatcat:o3feh65slffc3jow65h7ag6gym
Characteristics and spatio-temporal variability of the Amazon River Basin Water Budget
2004
Climate Dynamics
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of the river is obtained after corrections on the series observed taken at a gauging site almost 200 km inland. ...
However, variability in the evaporation, moisture convergence, and observed rainfall and runoff matches quite well. ...
Roads and H. da Rocha for their comments and suggestions on earlier versions of the manuscript. ...
doi:10.1007/s00382-004-0461-6
fatcat:6tsu5ebepfglxfavlkopp342ee
Modulation of convection in the southwestern Amazon basin by extratropical stationary fronts
2002
Journal of Geophysical Research
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These results had implications for the parameterization (in general circulation models) of subgrid-scale convective processes in Amazônia in terms of the large-scale flow and for improving precipitation ...
1] Regimes of lower tropospheric northwesterly wind observed in southwestern Amazônia during the Tropical Rainfall Measuring Mission Large-Scale Biosphere Atmosphere (TRMM-LBA) field campaign were shown ...
The comments of the anonymous reviewers significantly improved the presentation of the results. ...
doi:10.1029/2000jd000263
fatcat:62pnguvz5fhuzjhjjrrapcc6cm
Review of the generation mechanisms of post-midnight irregularities in the equatorial and low-latitude ionosphere
2018
Progress in Earth and Planetary Science
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One candidate is the seeding of the Rayleigh-Taylor instability by atmospheric gravity waves propagating from below into the ionosphere. ...
Plasma bubbles are well-known to frequently occur post-sunset when the solar terminator is nearly parallel to the geomagnetic field lines (during equinoxes at the longitude where the declination of the ...
Acknowledgements This work was done as a part of "Workshop on Ionospheric Plasma Bubble Seeding and Development" organized by the Institute for Space-Earth Environmental Research, Nagoya University. ...
doi:10.1186/s40645-018-0212-7
fatcat:5enh24pvejhmbgtqkmg2tuvs44
On dynamic and thermodynamic components of cloud changes
2004
Climate Dynamics
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Clouds are sensitive to changes in both the large-scale circulation and the thermodynamic structure of the atmosphere. ...
mesoscale models on the other hand. ...
atmospheric circulation, and partly from a change in the thermodynamic structure of the atmosphere. ...
doi:10.1007/s00382-003-0369-6
fatcat:w4gaxgysiva23lfcxgcccvu434
NASA Research Strategy for Earth System Science: Climate Component
2001
Bulletin of The American Meteorological Society - (BAMS)
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datasets to support its scientific research programs and the verification of earth system model predictions against observed phenomena. ...
Global Change Research Program, is to consolidate scientific findings in the different disciplines into an integrated representation of the coupled atmosphere, ocean, ice, land, and biosphere system. ...
The authors are indebted to colleagues in the NASA Office of Earth Science and NASA centers who helped formulate a coherent research strategy and contributed to drafting the NASA Earth Science Research ...
doi:10.1175/1520-0477(2001)082<1309:nrsfes>2.3.co;2
fatcat:tt4e33tm2vehpfynwyxykvcvz4
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