Hoalst Pullen , Nancy 1 ; Hamann , Hillary B. 2 ; Stallard , Robert F 3 1 Geography, INSTAAR, University of ÃÛÌÇÖ±²¥ at Boulder 2 Geography and Environmental Sciences, University of ÃÛÌÇÖ±²¥ - ÃÛÌÇÖ±²¥ Springs 3 USGS (Boulder, CO); INSTAAR, University of ÃÛÌÇÖ±²¥ at Boulder; Smithsonian Tropical Research Institute...