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RECORD NUMBER: 46 OF 406

Main Title Climatic Sensitivity of California Water Resources.
Author Lettenmaier, D. P.; Sheer, D. P.;
CORP Author Washington Univ., Seattle. Dept. of Civil Engineering. ;Water Resources Management, Inc., Columbia, MD.;Corvallis Environmental Research Lab., OR.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/009;
Stock Number PB91-177378
Subjects Climatic changes; Runoff; Water supply; Catch basins; Rainfall; Snowmelt; Mathematical models; Carbon dioxide; Atmospheric circulation; Stochastic processes; Reservoirs; Water flow; Winter; Spring season; Performance evaluation; California; Central Valley Project; State Water Project
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB91-177378 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1991
Collation 11p
Abstract The possible effects of climate change on the combined Central Valley Project-California State Water Project (CVP/SWP) were evaluated using a three-stage approach. In the first stage, runoff from four headwater 'study catchments' was simulated using rainfall/snowmelt-runoff models, with climatic input taken from CO2 doubling scenarios from three general circulation models (GCMs). In the second stage, long-term inflows to the CVP/SWP reservoir system were simulated, conditioned on the study catchment flows, using a stochastic disaggregation model. In the third stage, a system simulation model was used to evaluate the performance of the reservoir system. For all of the alternative climate scenarios, runoff would be shifted from the spring to the winter. Significantly lower water deliveries from the SWP would occur under the CO2 doubling scenarios. The reduced deliveries would occur because some of the increased winter runoff would be spilled from the reservoirs instead of being stored in the snowpact, even though the mean annual runoff increased slightly under some climate scenarios.
Supplementary Notes Pub. in Jnl. of Water Resources Planning and Management, v117 p108-125 Jan/Feb 91. Prepared in cooperation with Water Resources Management, Inc., Columbia, MD. Sponsored by Corvallis Environmental Research Lab., OR.
NTIS Title Notes Journal article.
Category Codes 48B; 48G; 55B
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Control Number 116430399
Cataloging Source NTIS/MT
Origin NTIS
Type CAT