GIS in Developing Relative Landslide Potential Framework, North Coast Ranges, California
Track: Mining and Geosciences
Author(s): Timothy K. Parker, Dave Dixon
This paper presents GIS applications in evaluation of mass wasting and soil erosion in forested terrain in the North Coast Ranges, California. California Department of Conservation, Division of Mines & Geology (CDMG) is mapping landslide activity over time by completing multiyear aerial photograph review, geologic assessment, field reconnaissance, and transfer of the data into GIS for development of maps of geologic and geomorphic features related to landslides on a watershed basis. ArcView Spatial Analyst ModelBuilder is being utilized to develop a framework of relative landslide potential with consideration of weighted criteria including slope, aspect, topographic convergence, mapped landslides/unstable areas, geology, and soils.
Timothy K. Parker
Department of Water Resources
3251 S Street
Sacramento, CA 95816