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Rain triggered landslide hazard analysis
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Rain triggered landslide hazard analysis

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  • The SINMAP model requires, therefore, 2 variables and 3 parameters as input. The variables ‘theta’ and ‘a’ are implicitly input in the form of a DEM for the model to calculate them for each and every pixel. The three parameters are C, phi, and the ratio R over T. It should be noted, at this point, that the reality is very complex and it would not simply be possible to model a wide range of material and climatic conditions with one single value. The model accounts for this uncertainty and it is so developed to input these parameters by specifying lower bound and upper bound values assuming a uniform probability distribution. Further, the temporal and spatial variability is accounted for by the appropriate choice of a parameter and a variable. The water to soil density ratio r is normally assumed to be 0.5 An inventory of landslide initiation points is also needed as a crucial information for model calibration.

Rain triggered landslide hazard analysis Rain triggered landslide hazard analysis Presentation Transcript