Abstract
Flood‐forecasters have frequently made use of tabulations showing the crest‐rise in feet per inch of rainfall for large storms on particular headwater drainage‐basins. Values of crest‐rise per inch of rainfall might well be termed unit‐crests and, as would be expected, they vary widely for different storms. The value of unit‐crest to be used in forecasting for a particular storm would be based on a previous storm of similar characteristics and accompanying soil‐conditions.The purpose of this paper is to demonstrate that with the use of refinements, such as initial loss, an index of soil‐condition, and an adjustment for duration of rainfall, values of crest‐rise can be satisfactorily correlated with rainfall. The principal reason for using such a procedure rather than one of the more refined methods involving rainfall‐runoff relations, unit‐hydrographs, etc., is the saving of time in making predictions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
