1. RS/GIS Lab, Innovation Systems for the Drylands, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, India
2. Western Geographic Science Center, U.S. Geological Survey (USGS), Flagstaff, AZ, USA
3. Bay Area Environmental Research Institute (BAERI), NASA Research Park, Moffett Field, CA, USA
4. Jawaharlal Nehru Technological University (JNTU), Hyderabad, India