Assessment of Bivariate Statistical Analysis Model in Landslide Hazard Zonation

The mentioned model is one of the statistical analysis methods for landslide hazard predication based on quantitatively defined weight values. The method used is called landslide index method. A weight – value for a parameter class, such as a certain lithological unit or a certain slope class, is defined as the natural logarithm of the landslide density in the class divided by the landslide density in the entire map. The method is based on map crossing of a landslide map with a certain parameter map, in geographical information system. The mentioned model is run in Amiry and Haftan subbasines. The output results has assessed base on Density ratio (Dr) index. Comparisons of the results with those of other researchers confirm the modeling efficiency.