Record Display for the EPA National Library Catalog

RECORD NUMBER: 92 OF 269

OLS Field Name OLS Field Data
Main Title Evaluation of a Deterministic Model for Predicting Water Yields from Small Agricultural Watersheds in Virginia.
Author Shanholt, V. O. ; Burfor, J. B. ; Lillar, J. H. ;
CORP Author Virginia Polytechnic Inst. and State Univ., Blacksburg. Research Div.
Year Published 1972
Report Number Bull-73; OWRR-A-018-VA; 13824,; A-018-VA(6)
Stock Number PB-212 000
Additional Subjects ( Watersheds ; Mathematical models) ; ( Water supply ; Predictions) ; Stream flow ; Surface water runoff ; Hydrology ; Fluid infiltration ; Evaporation ; Water storage ; Farms ; Seasonal variations ; Evaluation ; Errors ; Forecasting ; Virginia ; Computer programs ; Stanford watershed model ; Water yield
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-212 000 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 231p
Abstract
A Fortran version of the Stanford Watershed Model, without snowmelt, was used to generate streamflow data on two small agricultural watersheds. Five years of recorded data were used to 'calibrate' the model after which 5 additional years were generated using the model parameters developed for the first period. A variety of sensitivity runs were made to gage the effectiveness of different model parameters. The four most important parameters were the interflow index, the infiltration index, lower zone storage index, and an infiltration - evaporation index for applying a seasonal variation to infiltration. (Author)