The General Hydrologic System Model

by Roger C. McCann, Assoc. Prof.; Dept. of Mathematics, Mississippi State Univ., Mississippi State, Miss. 39762,
Vijay P. Singh, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. Engrg., Louisiana State Univ., Baton Rouge, La. 70803,


Serial Information: Journal of the Hydraulics Division, 1981, Vol. 107, Issue 12, Pg. 1581-1592


Document Type: Journal Paper

Abstract: The general Hydrologic System (GHS) model is considered. It is found that there are inconsistencies in equations for the instantaneous unit hydrograph (IUH) which were derived using the GHS Model. The existence of these inconsistencies is supported by an analysis of the data reported in the literature dealing with watershed runoff modeling and flood routing in open channels. It is shown that if simple, yet realistic, initial conditions are assumed then the GHS model becomes considerably simpler, and the above inconsistencies no longer remain. The reported data supports this assumption.

Subject Headings: Hydrologic models | Data processing | Flood routing | Hydrographs | Data analysis | Hydrologic data | Watersheds | Runoff

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