基于GIS技术的大地电磁测深数据库系统设计与实现

The design of MT database and its management system developed together with GIS technology

大地电磁(Megnetotelluric,简称MT)测深数据子库是中国岩石圈三维结构数据库所属子库之一。本文阐述了结合GIS技术开发大地电磁测深数据库管理系统的必要性。讨论了新型大地电磁测深数据库及基于GIS平台的数据库管理系统的总体设计思想。在分析原ACCESS大地电磁测深数据库所存在问题的基础上,建立新的MT数据库实体-关系模型,并进一步把原有的MT数据库改造为SQL Server 2000数据库;同时,开发了基于GIS的MT数据库管理系统。本文介绍了基于GIS的MT数据库管理系统所具有的功能。

MT database is a part of the database of 3D structure of lithosphere P.R. China. This paper analyzed necessity of developing a MT database management system with GIS technology, than discussed the design of the MT database and its management system developed with VB and MapObject. After analyzed the old MT database developed with ACCESS 2000, we established new relationship between fields, then developed MT database with SQL Server 2000. At last, we developed a MT database management system. This paper also introduced all functions of MT database management system.