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ROCKFALL HAZARD AND RISK ASSESSMENTS ALONG ROADS AT A REGIONAL SCALE: EXAMPLE IN SWISS ALPS (2012)

Unlike fragmental rockfall runout assessments, there are only few robust methods to quantify rock-massfailure susceptibilities at regional scale. A detailed slope angle analysis of recent Digital Elevation Models (DEM) can
be used to detect potential rockfall source areas, thanks to the Slope Angle Distribution procedure. However, this method does not provide any information on block-release frequencies inside identified areas. The present paper adds to the Slope Angle Distribution of cliffs unit its normalized cumulative distribution function.
Reference:
Nat. Hazards Earth Syst. Sci., 12, 615–629, 2012
Organization:
Institute of Geomatics and Risk Analysis, University of Lausanne, Lausanne, Switzerland
Switzerland
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