ASTER GDEM数据在水利工程数值计算中的应用

Application of ASTER GDEM data to numerical simulation of water conservancy project

利用Global Mapper软件对ASTER GDEM数据进行坐标投影转换,提取相应研究区域的高程数据。利用Fortran语言编写的程序对研究区域水平坐标及高程数据进行处理,生成可应用于水利工程数值计算的地形格式。将此方法应用于某水利工程水动力学数值计算,得到了较理想结果,证明了该方法的可行性。所得成果可为ASTER GDEM数据在水利工程数值计算中的应用提供参考。

With Global Mapper, the coordinates of the projection of ASTER GDEM data is transformed, and then the elevation data of the research area is extracted. Furthermore, the horizontal coordinates and elevation data of the research area are pro- cessed with the program compiled by Fortran program, thus a 3 - D digital terrain that can be applied to the numerical calculation of water conservancy project is generated. When this method is applied to the numerical calculation of hydrodynamics for a water conservancy project, a more ideal is obtained, that verifies the feasibility of this method. The study result can provide reference for the application of ASTER GDEM data to the numerical calculation for a water conservancy project.