SRTM30米-陕西省

SRTM数据由美国太空总署（NASA）和国防部国家测绘局（NIMA）联合测量的，是全球首套高分辨率开源DEM数据集。我们基于SRTM V3数据拼接、整理生成30米分省数据，在整理过程中，对各省边界进行一定外扩，得到分省DEM数据。数据为WGS84椭球投影。

The SRTM data, jointly measured by the National Aeronautics and Space Administration (NASA) of the United States and the National Imagery and Mapping Agency (NIMA) under the Department of Defense, is the world's first high-resolution open-source DEM dataset. Based on the SRTM V3 data, we generated 30-meter provincial DEM data through mosaicking and sorting. During the sorting process, we expanded the boundaries of each province to a certain extent to obtain the provincial DEM data. The data uses the WGS84 ellipsoidal projection.