Parajuli and Zender (2017) developed two global dust source maps at high spatial resolution (500-m) by combining MODIS Blue Marble Images with Hydrological data. These data can be used in dust models to better characterize the dust sources at fine resolution.
The original sediment supply map (SSM) and the land surface map (LSM) at ~500m resolution both can be downloaded in ArcGIS raster format from the following Google Drive link:
https://drive.google.com/file/d/1AY1cgpqBfCULohcRdRGBrLuj677Hg0Yh/view?usp=sharing
Sediment Supply Map (SSM)
The sediment supply map (SSM) in NetCDF format can be downloaded from the following link:
https://drive.google.com/file/d/1AmQjJdSNC1Z4z7cSig5UJnp4aSJrQbWE/view?usp=sharing
Land Surface Map (LSM)
The land surface map (LSM) in NetCDF format can be downloaded from here:
https://drive.google.com/file/d/1AqpTqr3AI1wvcLMwhSzrFS4KJrp762U8/view?usp=sharing
The indexing in LSM NetCDF file follows the Figure 2 legend in the original paper:
1. Bedrock
2. Bedrock with sediment
3. Sand deposit
4. Sand deposit on bedrock
5. Sand deposit, stabilized
6. Agricultural and urban area
7. Fluvial system
8. Stony surface
9. Forest
10. Playa/Sabkha
11. Savanna/Grassland
12. Water body/Wetland
13. Snow