Calculation Of Reservoir Capacity And Study Of Visualization Based On DEM

Because the contradiction between the outpouring capability and flooding of Changjiang River becomes more obvious, the situation of defence flood is still rigorous. In this background, the Three Gorges project is put forward .After the Three Gorges project is finished, the capability of defence flood will have a great improvement.In the great Three Gorges project,the reservoir capacity is an important measure of evaluating whether the Three Gorges is reasonable. Calculating reservoir capacity correctly and quickly touch on that the scheme of the reservoir defence flood is reasonable or not.In this project , the data come mainly from DEM. According to the course of the project, this paper is consist of the following parts:the means of obtaining the Dem data;calculation of reservoir capacity based on DEM; introducing emphaticly the whole process of building up the DEM of the Three Gorges reservoir by means of whole digital photogrammetric method;visulazation based on DEM and so on.