Rain Gage Network Size for Automated Flood Warning Systems

by David C. Curtis, DC Consulting, Folsom, United States,
Harry W. Dotson, DC Consulting, Folsom, United States,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract: A methodology is presented that establishes a rational framework for estimating the optimum rain gage network size for flash flood warning systems based on network performance and economic criteria. Network performance is measured statistically by the estimated coefficient of variation of mean areal rainfall. Rain gage network performance is used as a surrogate to estimate the performance of the flood forecasting system in generating flood warning benefits (i.e. potential damage reduction).

Subject Headings: Disaster warning systems | Rainfall | Flash floods | Forecasting | Frames | Economic factors

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