Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana

June 1, 1996

Flood hydrographs for 26 gaging stations and rainfall data were used together with a rainfall-runoff simulation model to derive unit hydrographs and important unit-hydrograph variables. Methods were developed for estimating unit hydrographs at ungaged sites using either the Clark or dimensionless unit-hydrograph methods. The 26 derived unit hydrographs were compared with those calculated by the two estimation methods. The two methods performed about equally well in matching derived unit-hydrograph peaks and shapes.

Publication Year	1996
Title	Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana
DOI	10.3133/wsp2420
Authors	Stephen R. Holnbeck, Charles Parrett
Publication Type	Report
Publication Subtype	USGS Numbered Series
Series Title	Water Supply Paper
Series Number	2420
Index ID	wsp2420
Record Source	USGS Publications Warehouse

Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana

Hydrologist

Hydrologist

U.S. Geological Survey

U.S. Department of the Interior

Procedures for estimating unit hydrographs for large floods at ungaged sites in Montana

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Steve Holnbeck

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