1. Center for Geospatial Science, Education, and Analytics (GeoSEA), Information Technology Systems Old Dominion University 4111 Monarch Way, Suite 402 Norfolk Virginia 23508 USA
2. Spatial and Temporal Analysis of Rivers Laboratory, Department of Geography University of Florida 3141 Turlington Hall, P.O. Box 117315 Gainesville Florida 32611 USA
3. AidData Global Research Institute William & Mary, 427 Scotland Street Williamsburg Virginia 23185 USA