Affiliation: | 1. Department of Geography and Anthropology, University of Wisconsin-Eau Claire, 105 Garfield Ave., 54702 Eau Claire, WI, USA;2. Department of Geography, University of Northern Iowa, 1227 W 27th Street, 50614 Cedar Falls, IA, USA;3. Microwave Remote Sensing Laboratory, University of Massachusetts-Amherst, 100 Natural Resources Road, 01003 Amherst, MA, USA |