Bivariate point process model of relief factors of debris flow

In this paper, we study the bivariate point process model of relief factors of debris flow of drainage area and drainage height difference. This model can make use of more observation points outside the radius r0 than bivariate exceedance model. Using 95% and 98% quantile as the initial value of r0 respectively, we get the estimation of the fitting density function. If r0 is equal to 98% quantile, i.e. = r0 46.14936, the appending density function curve is successfully simulated with the histogram.