Mesoscale Numerical Weather Prediction for Reservoir Design and Flash Flood Management

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by Elmar R. Reiter, Colorado State Univ, United States,

Document Type: Proceeding Paper

Part of: Computerized Decision Support Systems for Water Managers:

Abstract: A portable, interactive weather prediction system (PIWPS), which runs on a desktop workstation, has been developed and tested on several heavy precipitation events in the Rocky Mountains, using historical meteorological data. For decision support in disaster management under flash flood situations, direct linkage of such a meteorological prediction model with a hydrological model will be needed. While the meteorological model provides estimates of precipitation, the hydrological model translates these into runoff and anticipated progression of flood stages. One can identify heavy precipitation conditions that happened in the past at a certain location, and modify the environmental parameters to obtain extreme, but realistic, contrived conditions. With such experiments one has an additional tool for reservoir and dam design, that can be used in comparison with statistical PMP (probable maximum precipitation) estimates.

Subject Headings: Hydrologic models | Reservoirs | Flash floods | Numerical methods | Hydraulic design | Precipitation | Decision support systems | Interactive systems | Rocky Mountains

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