Joseph G Alfieri, USDA Beltsville Agricultural Research Center, Beltsville, MD, United States, William P Kustas, U. S. Department of Agriculture, Agricultural Research Service, Hydrology and Remote Sensing Laboratory, Beltsville, MD, United States, Martha Anderson, USDA ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD, United States, John H Prueger, U. S. Department of Agriculture, Agricultural Research Service, National Laboratory for Agriculture and Environment, Ames, IA, United States and Christopher M U Neale, University of Nebraska, Robert B. Daugherty Water for Food Institute, Lincoln, NE, United States