Rebecca A VanderLeest, University of Connecticut, Department of Geosciences, Groton, CT, United States, Julie C Fosdick, University of Connecticut, Department of Geosciences, Storrs, CT, United States, Theresa Schwartz, USGS, Geosciences & Environmental Change Science Center, Lakewood, CO, United States, Matthew A Malkowski, Stanford University, Geological Sciences, Stanford, CA, United States and Ali Rsme, Indiana University Bloomington, Department of Earth and Atmospheric Sciences, Bloomington, United States