FOREST HYDROLOGY AND EXTREME RAINFALL FREQUENCY  1 | Zendy

Settergren Carl D. | Zendy

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FOREST HYDROLOGY AND EXTREME RAINFALL FREQUENCY 1

Author(s) -

Settergren Carl D.

Publication year - 1970

Publication title -

jawra journal of the american water resources association

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.957

H-Index - 105

eISSN - 1752-1688

pISSN - 1093-474X

DOI - 10.1111/j.1752-1688.1970.tb01622.x

Subject(s) - environmental science , surface runoff , storm , hydrology (agriculture) , return period , extreme value theory , hydrograph , climatology , meteorology , geology , statistics , flood myth , geography , mathematics , ecology , archaeology , geotechnical engineering , biology

Extreme rainfall frequency analysis provides one means to predict, within certain limits of probability, the average time interval between the recurrences of storms of a specified duration and magnitude. This in turn furnishes the forest hydrologist a valuable tool for engineering design and runoff and erosion forecast. A modification in the application of the annual maximum and annual exceedance series analysis described by V. T. Chow can, for special purposes, lead to an even more useful estimate of extreme events on a seasonal basis. This can be particularly important on small forested headwater watersheds where the runoff response to extreme rainfall may vary considerably with seasonal changes in canopy cover and soil moisture characteristics. Although the application of data covering a relatively short period of record has produced some inconsistencies among the frequency diagrams, under certain circumstances for short‐term recurrence interval forecast and for non‐critical application the analysis of extreme rainfall frequency from less than 20 years data seems justified.

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