Remote Sensing of Rainfall with NEXRAD

by Mark L. Walton, Nat Oceanic and Atmospheric, Administration, Silver Spring, United States,
James A. Smith, Nat Oceanic and Atmospheric, Administration, Silver Spring, United States,
Robert C. Shedd, Nat Oceanic and Atmospheric, Administration, Silver Spring, United States,



Document Type: Proceeding Paper

Part of: Hydraulics/Hydrology of Arid Lands (H²AL)

Abstract: In utilizing the Next Generation Weather Radar (NEXRAD) for remote sensing of rainfall, three stages of precipitation processing have been developed by the National Weather Service's (NWS) Hydrologic Research Laboratory (HRL). The Stage 1 precipitation processing occurs within the NEXRAD computer system; it produces quantitative estimates of precipitation, short-term forecasts of precipitation accumulations, and flash flood probabilities. The second and third stages of precipitation processing will occur at NWS forecast offices on systems external to NEXRAD. Stages 2 and 3 will further improve the quality of the precipitation estimates through the use of satellite imagery, additional rain gage data, and interactive quality control at the River Forecast Centers (RFC).

Subject Headings: Rainfall | Forecasting | Radar | Aerial photography | Remote sensing | Hydrology | Quality control

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