1. University of Alabama,Department of Geography and the Environment,Tuscaloosa,AL,USA,35487
2. Texas A&M University,Department of Physics & Geosciences,Kingsville,TX,USA,78363
3. University of Cincinnati,Department of Geography and Geographic Information Science,Cincinnati,OH,USA,45221
4. Appalachian State University,Department of Geography and Planning,Boone,NC,USA,28608
5. Troy University,Department of Geospatial Informatics,Troy,AL,USA,36082
6. Louisiana State University,Department of Geography and Anthropology,Banta Rouge,LA