Modeling Shallow Landslide Potential for Watershed Management

Author: Laura M. Vaugeois
Organization: WADNR

919 N. Township St.
Sedro-Woolley, WA 98284
USA

Phone: (360) 856-3500
Fax: (360) 856-2150
laura.vaugeois@wadnr.gov

The Forest Practices Division of the Department of Natural Resources is mandated to regulate timber harvest operations in Washington State. It was recognized that the existing screen for shallow landslides was not sufficient and that several viable GIS-based models for slope stability were currently in use by timberland managers and scientists. However, no information existed that compared the effectiveness of the various models. Prior to creating a new screen of modeled slope stability, a comparative analysis of several quantitative GIS models was undertaken to determine which model was most effective in predicting shallow landslide potential.