Jon Christopherson¹, Kimberly Casey^2,3 and Shankar N. Ramaseri Chandra¹, (1)KBR, contractor to USGS EROS, Sioux Falls, SD, United States, (2)U.S. Geological Survey, Reston, VA, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States