GIS下长周期大地电磁资料可视化管理平台的研究与实现  

RESEARCH AND IMPLEMENTATION OF GISBASED LONG-PERIOD MAGNETOTELLURIC VISUALIZATION DATA MANAGEMENT PLATFORM

作　　者：覃庆炎[1] 张伟[1] 王西冲[1] 

机构地区：[1]成都理工大学信息工程学院,四川成都610059

出　　处：《物探化探计算技术》2011年第3期296-299,228,共4页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家自然科学基金(40839909)

摘　　要：针对传统资料管理方式的不足,提出了利用数据库并结合GIS技术对长周期大地电磁资料进行可视化管理的方法,将工区测点信息与行政区域信息、道路交通信息、地形高程模型和地质构造信息等多种空间数据源相融合,阐述了该平台的系统结构和实现过程。并针对数据反演前的测线投影与测点距计算问题,介绍了测点高斯平面投影与最小二乘下测线直线拟合的实现方法。应用表明,该平台以直观简洁、图形可视化的方式对资料进行了有效管理,同时也为野外生产工作和资料的定性处理与解释,提供了必要的信息支持。The paper proposes a method which applies database and GIS technology on the visual management of LMT data contrary to the shortcomings of traditional information management methods,which integrates survey sounding location with different spatial data sources such as administrative areas information,traffic information,digital elevation and tectonic information.The paper introduces the principle and process of the platform's implement,and also describes the realization of survey points' plane projection and survey line's straight fitting.Application results show that the platform not only effectively manages data in simple and graphical ways,but also provides necessary information for the field production and data's qualitative processing and interpretation.

关 键 词：长周期大地电磁 GIS 测线投影 工区地质 

分 类 号：P208[天文地球—地图制图学与地理信息工程]