Radar Rainfall Measurements and Runoff Forecastingby David J. Wall, Univ of New Haven, United States,
Robert C. Shedd, Univ of New Haven, United States,
Document Type: Proceeding Paper
Part of: Hydraulic Engineering
Abstract: Rainfall varies in intensity and depth over time and space. Weather radar systems can provide estimates of rainfall at points in space with nearly continuous coverage with respect to time. A study was conducted to investigate the effects, on hydrologic forecasts, of varying the resolution of radar rainfall estimates in both time and space. A definite relationship was found to exist between the standard error of the hydrograph peaks and the radar grid spacing as well as the time interval between measurements.
Subject Headings: Radar | Rainfall-runoff relationships | Forecasting | Runoff | Hydrologic models | Grid systems | Spacing
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