CGRG Bibliography of Canadian Geomorphology
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Author : Cheng, J.D.; Black, T.A.; and Willington, R.P.
Date : 1977
Title : The stormflow characteristics of a small, steep and forested watershed in the Coast Mountains of Southwestern British Columbia.
Publication : Canadian Hydrology Symposium, Aug. 29-31, 1977, Edmonton, Alta
Issue :
Page(s) : 301-310
Abstract
The stormflow characteristics of Jamieson Creek watershed (3 km2) were evaluated by analyzing 41 storm hydrographs from 1970 to 1974. The fraction of storm rainfall that appeared as stormflow averaged 44 percent, varying from 3 to 72 percent. Instantaneous peak flows varied considerably with storms, ranging from about 10 to 1,370 l s-1km-2. Rising times were usually within 30 hours. Lag times were found to be relatively constant and short, averaging 8.5 hours. The recession slopes of the storm hydrographs appeared to depend on the antecedent watershed moisture storage and its change following the storm. Stormflow amount was highly correlated with rainfall amount. The use of antecedent baseflow as an index of watershed soil moisture storage improved the stormflow estimates. The stormflow characteristics reflected the influence of climatic conditions and three watershed characteristics: shallow but highly permeable soils, steep watershed slopes and stream channels, and high drainage density. The stormflow characteristics can be interpreted in terms of the generation of stormflow from a variable source area.
Bibliography of Canadian Geomorphology