The California Geologic Survey has published a new map of landslide susceptibility for the entire state of California. It addresses only deep-seated landslides, not shallow slides such as debris flows. The criteria used for developing […]
(Irvine, CA – December 29, 2010) As Digital Map Products (DMP) concludes its 10th year, CEO Jim Skurzynski predicts 2011 will be the year spatial technology goes mainstream. DMP, a leading provider of software-as-a-service spatial technology solutions, is experiencing record sales as mapping and cloud computing converge. Skurzynski expects the melding of these two powerful technologies to continue and for additional markets to open up as more sectors continue to discover uses for advanced spatial display and analysis.
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The Utah Geologic Survey has released a "Landslide Susceptibility Map of Utah". They apparently relied quite heavily on GIS based thresholding of existing slope angles but only after they had statistically analyzed failure angles for particular geologic units. So it sounds like they throw the known landslides, the geologic map of Utah and a DEM into the GIS a blend it all up. Perhaps a slight oversimplification!