Runoff Curve Numbers form Partial Area Watersheds

by Richard H. Hawkins, (M.ASCE), Assoc. Prof. of Forestry and Outdoor Recreation; Dept. of Civ. and Environmental Engrg., Utah State Univ., Logan, Utah,

Serial Information: Journal of the Irrigation and Drainage Division, 1979, Vol. 105, Issue 4, Pg. 375-389

Document Type: Journal Paper


A previously observed relationship between runoff curve numbers and storm rainfall is further examined. Under some wildland conditions the runoff curve numbers have been observed to decrease with increasing storm size. The existence of a relatively constant runoff source area is hypothesized to produce this relationship. For the high elevation wildland watershed studied this hypothesis appears valid.

Subject Headings: Runoff curve number | Watersheds | Storms | Rainfall-runoff relationships | Rain water

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