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Source Area Variability During Peakflow: A Function of Antecedent Soil Moisture Content

by James A. Lynch, Pennsylvania State Univ, Sch of, Forest Resources, University Park, PA, USA,
Edward S. Corbett, Pennsylvania State Univ, Sch of, Forest Resources, University Park, PA, USA,



Document Type: Proceeding Paper

Part of: Watershed Management in the Eighties

Abstract:

An attempt was made to identify the source areas contributing to peakflow and to quantify the relative importance of each source area under various antecedent soil moisture (ASM) conditions. The variability of these source areas within and between storms was also investigated. The results of this study support the dynamic nature of the variable source area concept. Direct channel interception and rapid subsurface stormflow determined the volume and timing of the peakflows. The relative importance of each was determined by the extent of the saturated zone on the basin.

Subject Headings: Soil water | Saturated soils | Watersheds | Subsurface environment | Streamflow | Storms | Peak flow

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