库岸条件对利用DEM计算蓄水静库容的影响及修正方法初探

Influence of reservoir-bank conditions on storage capacity calculated by DEM and its modification method

介绍了利用数字高程模型(DEM)计算库容的特点,指出了因水库蓄水造成库岸条件的变化及其对库容计算准确性的影响。通过对库岸实施动态监测,将库区多时相遥感数据、正射影像数据及其影响库岸变化因素的背景数据与DEM数据进行套和显示,构建实时三维GIS系统对库容计算进行了修正。

The paper presents the features on calculation reservoir capacity by DEM and points out the changes of reservoir-bank conditions due to reservoir storage and their influences on accuracy of calculated reservoir capacity. It is feasible to modify reservoir calculation through implementing dynamic monitoring to reservoir bank and employing multicycle remote sensing data,DOM data and other related data to establish a real-time 3D GIS.