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RECORD NUMBER: 3 OF 20

OLS Field Name OLS Field Data
Main Title Comparison of an Alternative Land Surface Parameterization with the GFDL High Resolution Climate Model.
Author Wood, E. F. ; Lettenmaier, D. P. ; Wallis., J. R. ;
CORP Author Princeton Univ., NJ. Water Resources Program. ;Washington Univ., Seattle. Dept. of Civil Engineering. ;IBM Thomas J. Watson Research Center, Yorktown Heights, NY.;Corvallis Environmental Research Lab., OR.
Publisher 1991
Year Published 1991
Report Number EPA/600/D-91/192;
Stock Number PB91-231100
Additional Subjects Hydrology ; Climates ; Land resources ; Soil water ; Computerized simulation ; Air water interactions ; General circulation models ; Regional analysis ; Precipitation(Meteorology) ; Atmospheric temperature ; Seasonal variation ; Climatic changes ; Runoff ; Evaporation ; Hydrometeorology ; Water balance ; Comparison ;
Holdings
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NTIS  PB91-231100 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/26/1991
Collation 14p
Abstract
The hydrologic performance of a five-year GFDL R30 simulation is evaluated using observed temperature, precipitation, and runoff for the continental U.S.. While the model reproduces the major east-west structure of seasonal variations in the temperature and precipitation, it is too cold and wet in the winter, and warm and dry in the summer, and has too little runoff, for much of the continental U.S. As an alternative to the bucket hydrology used in the GFDL (and most other) GCM's, the performance of a model that represents variations in infiltration capacity within a GCM grid, as well as baseflow, was evaluated. Comparisons were made with GFDL and GISS bucket hydrology using five years of daily GFDL R30-simulated precipitation and temperature for a southeastern U.S. grid cell. More dynamic and apparently realistic short-term variations in soil moisture were achieved for the alternative hydrologic model, but the most significant differences in the hydrologic dynamics were attributable to the inclusion of baseflow to simulate between-storm runoff.