GIS空间数据的质量探讨

Study on Quanlity of GIS Spatial Datas

空间数据直接影响着GIS应用分析结果的可靠程度和应用目标的真正实现,因此,有效地控制空间数据的质量是非常必要的。该文结合山东省1∶1万基础地理信息数据采集与建库实践,分析了空间数据质量问题的来源及影响,根据空间数据质量标准,采用软件检查和人机交互检查2种方法,制定各工序相应的检查方案,以减少误差,防止粗差。

Spatial datas will affect the reliability of GIS application results and the realization of application goals. Therefore, it is very necessary to control the spatial datas quality effectively. Combining with the collection of basic GIS datas with the scale of 1 ： 10000, the origins which will effect the quality of spatial datas are analyzed in this paper. According to quality standards of spactial datas, by using software checking method and human and computer cross -examination method, appropriate countermeasures should be made to reduce the error and prevent gross errors.