Stephen Paul Coss, Ohio State University Main Campus, Columbus, OH, United States, Michael T Durand, The Ohio State University, School of Earth Science and Byrd Polar and Climate Research Center, Columbus, OH, United States, C.K. Shum, The Ohio State University, Division of Geodetic Science, School of Earth Sciences, Columbus, OH, United States, Xiao Yang, University of North Carolina at Chapel Hill, Chapel Hill, United States, Tamlin Pavelsky, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States and Augusto Getirana, NASA Goddard Space Flight Center, Greenbelt, MD, United States