Due to the limited number of files on the Zenote platform, the tif files were grouped into the zip packages by longitude. In terms of file and zip package naming, lon represents longitude, lat represents latitude, A represents the east or north latitude, B represents west or south latitude, and the numbers after A and B represent the specific longitude or latitude in the lower left corner of the file. To compress the size of the data, the data is scaled by a factor of 100. Therefore, the pixel values need to be divided by 100 when used, i.e., a pixel value of 1500 represents 15 m.