【摘要】 介绍了地理信息系统的主要特征、概率性地震危险性分析的一般步骤及其在MapGIS软件上的实现方法。并以三峡坝区某工程场地为例对程序进行了测试。GIS的用户界面使用户易于掌握概率性地震危险性分析的流程和数据。更重要的是它提高了用户对复杂地震危险性分析过程的认知能力,可以帮助用户在地震危险性分析中从空间数据中挖掘更多的信息。更多还原

【Abstract】 The main characteristics of GIS,general procedures of Probabilistic Seismic Hazard Analysis(PSHA) and the method to realizing them on MapGIS are described.A computerized application to the engineering site in the Three-Gorge Dam district is presented.The user interface introduceing by GIS can handle PSHA routines and data in a more direct way,improve the user’s capacity of cognizing complex PSHA processing,and help user to mine more information from geo-data in PSHA.更多还原