Practical Applications of Gage-Adjusted Radar?Rainfall Estimates

by David Curtis,



Document Type: Proceeding Paper

Part of: WRPMD'99: Preparing for the 21st Century

Abstract:

(no paper) It is radar's estimates of rainfall at a specific location that tends to disappoint. On the other hand, the strength of rain gage observations is in estimating rainfall at a point. The main weakness of rain gages is their inability to yield information about how rainfall varies between gages. One very practical approach to using radar-rainfall estimates is to combine radar and rain gage observations into one consistent data set. Done properly, gage-adjusted radar-rainfall estimates combine the strengths of both measurement systems while minimizing the weaknesses of each. This paper will examine the strengths and weaknesses of rain gages and radars as rainfall observation systems. Practical approaches to merging the data sets will be discussed and illustrated with project applications of gage-adjusted radar-rainfall estimates.

Subject Headings: Rainfall | Radar | Hydrologic data | Information management | Data collection | Power transmission | Management methods

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