• Comprehensive analysis of the effects natural disasters on income distribution in entire United States and for all types disasters. Differentiation between individual household-based measures. Analysis adaptation intensification channels. Middle incomes are particularly affected by During last decades, experienced an increase number their destructive capability. Several studies suggest a dama...

Abstract This paper aims to explore the simulation method of random spatial distribution natural fragments. The transformation between three-dimensional coordinates and two-dimensional planar fragments is realized by coordinate mapping inverse mapping, uniform in plane Monte Carlo stochastic points method, so as obtain position