1. Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin–Madison, Madison, Wisconsin
2. National Drought Mitigation Center, University of Nebraska–Lincoln, Lincoln, Nebraska
3. Atmospheric and Environmental Research, Inc., Lexington, Massachusetts
4. Department of Geography and Environmental Resources, Southern Illinois University at Carbondale, Carbondale, Illinois
5. Agricultural Research Services, Hydrology and Remote Sensing Laboratory, U.S. Department of Agriculture, Beltsville, Maryland
6. Earth Science Branch, Marshall Space Flight Center, National Aeronautics and Space Administration, Huntsville, Alabama
7. School of Meteorology, and Oklahoma Climatological Survey, University of Oklahoma, Norman, Oklahoma