Bridget R Scanlon, University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, Ashraf Rateb II, University of Texas at Austin, Bureau of Economic geology, Austin, TX, United States, Zizhan Zhang, Institute of geodesy and geophysics, Chinese Academy of Sciences, Wuhan, Hubei, China, Donald R Pool, U.S. Geological Survey Water Resources Division Retired, Tucson, AZ, United States, Alexander Y Sun, University of Texas at Austin, Austin, TX, United States, Himanshu Save, Center for Space Research, University of Texas at Austin, Austin, TX, United States, David N Wiese, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Matthew Rodell, NASA GSFC, Greenbelt, MD, United States and Sean C Swenson, NCAR, Boulder, CO, United States