Development of a 30 m resolution global sand dune/sheet classification map (GSDS30) using multi-source remote sensing data

Here we generated the GSDS30 map in the year 2017, which encompasses two SDS types: shifting SDS and semi-fixed/fixed SDS. The map is divided into 316 Tiff tiles, and the majority of the tiles are characterized by a size of 50,000 × 50,000 pixels. The SDS classification information is represented by the numeric values 1, 2, and 3, corresponding to shifting SDS, semi-fixed/fixed SDS, and others, respectively.