THE SPATIAL AND TEMPORAL AVAILABILITY DIFFERENCES OF CLOUD-FREE LANDSAT IMAGES OVER THREE GORGES RESERVOIR AREA

Global lake/reservoir surface water extent is the basic input data for many studies.But incomplete or spatial inconsistency problems exist in existing datasets. Fully utilizing HydroLakes, OpenStreetMap and GRanD, we produced a global dataset of lakes/reservoirs with 2.17 million individual features, called GLRSED. By spatially overlaying GLRSED with other auxiliary data, we identified mountain lakes, endorheic lakes, reservoirs, glacier-fed and permafrost-fed lakes, etc.