基于GIS的地震构造信息系统

GIS BASED SEISMO-TECTONIC INFORMATION SYSTEM

本文讨论了地震构造信息系统的建造和信息管理。系统是以GIS工具软件ARC/INFO为开发平台建造的,原始资料复盖华北地区的大部,约北纬35～41度,东经109～120度。系统包括活动断裂、破坏性地震、仪器记录地震等信息。本文深入研究了GIS做为信息管理工具的能力,探讨了GIS在地震区划图编制中可能起到的作用。系统能使地震危险分析中信息管理方式、信息管理效率和利用率有质的改进,在某种程度上减小资料利用不充分和人为任意性引起的不确定性。作为一种探索,本文进行了一系列的空间操作和分析,以研究空间特征之间的相关性,并产生新的数据集合。

A Seismo-tectonic Information System is introduced. The system is built on the basis of PC ARC / INFO. The system contains a series of coverages: AFLT - active fault, DEQK - destructive earthquake, IEQK - instrument recorded earthquake, etc. The system deeply investigated the functionality of GIS as a tool of information management, manipulation, analysis and the possibility applied in seismic zoning. The system can improve the efficiency of information management, and in some way reduce the uncertainty due to insufficient use of information and artificial arbitrary. On the system, a series of spatial manipulation and analysis are performed for studying the interrelationship between earthquake and active fault, and producing new data sets.