Synthesizing Daily Discharge from Rainfall Records

by Donald O. Moore,

Serial Information: Journal of the Hydraulics Division, 1968, Vol. 94, Issue 5, Pg. 1283-1298

Document Type: Journal Paper


A graphical method of synthesizing hydrographs of daily mean stream-flow from precipitation records is described. The method described requires four distinct operations: (1) Determination of the mean depth of daily precipitation over the drainage basin, (2) determination of the precipitation excess, (3) determination of the time distribution of each increment of storm runoff, and (4) determination of the amount of base flow that should be added to the direct runoff to give to total flow. The method has produced good results, where it has been tested, in forecasting flood hydrographs from precipitation.

Subject Headings: Rainfall | Hydrographs | Drainage basins | Runoff | Base flow | Flow distribution | Flow duration | Graphic methods

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