Temporally and Areally Distributed Rainfall

by John David Dean, Engrg. Aid; U.S. Dept. of Agriculture, Agr. Research Service, Southeast Watershed Lab., Athens, Ga.,
Willard M. Snyder, (M.ASCE), Hydr. Engr.; Dept. of Agriculture, Agr. Research Service, Southeast Watershed Lab., Athens, Ga.,


Serial Information: Journal of the Irrigation and Drainage Division, 1977, Vol. 103, Issue 2, Pg. 221-229


Document Type: Journal Paper

Discussion: Sittner Walter T. (See full record)
Closure: (See full record)

Abstract: Areally distributed rainfall can be readily computed by superimposing a square grid on the area of interest. Weights for each grid element for each raingage affecting the area are made functions of reciprocal distance to some power. In this study optimization confirmed the value of the exponent that is in general use. The method can be used to calculate the areal average of storm, day, or longer, total precipitation in climate determinations or water resource planning. It can also be used to calculate moving fields of rainfall by short-time increments during the progress of a storm over an area.

Subject Headings: Rainfall | Grid systems | Storms | Water resources

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