化探野外工作中GPS和GIS的应用

甘肃省地质调查院2001年在实施国土资源大调查项目时，成功地使用了GPS定位并辅以航迹监控，探索出一套GPS参数设定，校准，试验的方法，在自己开发软件的基础上，将GIS引入1：20万区域化探野外质量管理中，使管理人员及时了解野外生产进展及采样点的到位情况，并利用MapInfo的各种分析功能进行测点的查询，检索，统计等工作。

USES OF GPS & GIS IN FIELD WORKS IN GEOCHEMISTRY EXPLORATION

GPS has been used to take position and to control quality of the samples when Geological Survey Institute of Gansu province did items of country resource survey in 2001. The enacting methods of parameter and calibration for GPS have been searched. GIS has been taken into the quality management in the survey of 1:200000 regional geochemistry, then the manager could know promptly field productions and sample positions, and use the analysis functions of MapInfo to query, to search and to take statistic features of sample points.