A method for modeling water tables at debris avalanche headscarps

摘要: Abstract Heavy rainfall during a January 9 and 10, 1983 storm triggered numerous debris avalanches associated torrents in the Smith Creek basin, western Whatcom County, Washington, U.S.A. Rainfall hyetographs soil parameters are entered one-dimensional, vertical, transient, unsaturated finite-difference model to produce vertical discharge rates at selected avalanche headscarps. The kinematic wave equation water table profiles above Factors controlling hydrologic response assessed. tables modeled for failure-initiating, distinguished from those other severe storms which did not trigger widespread avalanches. modeling technique is suggested as method of predicting risk recurrence.