期刊
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
卷 68, 期 2, 页码 263-276出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s10064-009-0204-3
关键词
Lidar; Laser scanning; Landslides; Slope stability; Seismic slope stability; Digital terrain modeling; GIS
资金
- University of California, San Francisco (UCSF)
Airborne lidar (light detection and ranging) was used to create a high-resolution digital elevation model (DEM) and produce landslide hazard maps of the University of California, San Francisco Parnassus Campus. The lidar DEM consisted of nearly 2.8 million interpolated elevation values covering approximately100 ha and posted on an 0.6 m horizontal grid, from which a set of 16 maps was produced. The first subset of maps showed aspects of the topography useful for landslide mapping, an engineering geological map and a qualitative slope hazard map. The second subset consisted of physics-based probabilistic landslide hazard maps for wet static, wet seismic, and dry seismic conditions. This case history illustrates the utility of lidar-based products, supplemented by field-based geological observations and physics-based probabilistic slope stability modeling, for the evaluation of existing and potential slope stability hazards on a steep and heavily forested site.
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