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Evolution of methods for evaluating the occurrence of floods

Water Supply Paper 1580-A

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Abstract

A brief summary is given of the history of methods of expressing flood potentialities, proceeding from simple flood formulas to statistical methods of flood-frequency analysis on a regional basis. Current techniques are described and evaluated. Long-term flood records in the United States show no justification for the adoption of a single type of theoretical distribution of floods. The significance and predictive values of flood-frequency relations are considered. Because of the length of flood records available and the interdependence of flood events within a region, the probable long-term average magnitudes of floods of a given recurrence interval are uncertain. However, if the magnitudes defined by the records available are accepted, the relative effects of drainage-basin characteristics and climatic variables can be determined with a reasonable degree of assurance.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Evolution of methods for evaluating the occurrence of floods
Series title:
Water Supply Paper
Series number:
1580
Chapter:
A
Edition:
-
Year Published:
1962
Language:
ENGLISH
Publisher:
U.S. G.P.O.,
Description:
iii, 30 p. ; 24 cm.