CALIBRATION OF SNYDER COEFFICIENTS FOR PENNSYLVANIA

Autor:	Sonja N. Kerr, Arthur C. Miller, Donald J. Spaeder
Rok vydání:	1983
Předmět:	Hydrology Ecology Calibration (statistics) Linear regression Storm Hydrograph Structural basin Surface runoff Upper and lower bounds Geology Earth-Surface Processes Water Science and Technology Runoff model
Zdroj:	Journal of the American Water Resources Association. 19:625-630
ISSN:	1752-1688 1093-474X
DOI:	10.1111/j.1752-1688.1983.tb02780.x
Popis:	Unit hydrograph theory is one of the most widely used techniques to predict surface runoff. The present study is concerned with the Snyder unit hydrograph and the calibration of the Snyder coefficients for Pennsylvania. Twenty-seven study basins were selected, located randomly across the state. With the rainfall and runoff recorded for several events for each basin (more than 500 events were analyzed) unit hydrographs were calculated and the Snyder coefficients determined. A map of the coefficients was drawn to illustrate the variability in the coefficients and two equations using multiple regression theory were developed. The unexplained variability of the coefficients suggests that upper and lower bounds on the peak flow might be placed on storm hydrographs developed for ungaged watersheds.
Databáze:	OpenAIRE
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