Design And Implementation GlS Meteorological Disaster Risk Assessment System

Climatic of China complex, chilling injury, high temperature, droughts, floods, typhoons,sand storms and other weather disasters are frequent, be harm to the life and property of thepeople, as the global warming, extreme weather events are very frequent.It is very importantsignificance of disaster prevention and control that knowing Characteristics and occurrence ofmeteorological isaster.In this article on the basis of previous research, combine myself expertise to businessneeds in mind, the CSharp programming language designed to develop the risk analysis systemof meteorological disaster based on the custom file. Major work completed are as follows:(1) Article analysised the ESRI ShapeFile data files, ERDAS IMG files, the RadNex datafile, defined Wv、Pyr、Wr data files on the basis of those data files,and enabled read and writeoperations on a variety of data files and convert data files;(2) This system has completed space analysis algorithm, and put these algorithm successlytransplantation to Wr file and Wv file format, Pyr file has gated lattice data of fast displayedoperation;(3) System has completed Model.dll and Common.dll base on Csharp Language.Model.dlldefined some base objects and Common.dll defined some operations.(4) This system designed and developmented of meteorological disaster risk mapping module and disaster risk zoning map of the production module, system designed and developmented the secend judging base on the first judging.