Global map of soil moisture regimes. Developed by USDA-NRCS, Soil Survey Division, World Soil Resources, Washington, DC.

The USDA Agricultural Research Service (ARS) in collaboration with the University of Nebraska–Lincoln (UNL) and the ARS ...

Users can select their specific Area of Interest (AOI) on the SSPOT map and utilize one of two “optimizer” algorithms. The algorithms use the USDA’s Soil Survey Geographic Database and ...