Sustained changes in water storage across the western U.S. inferred from elastic land displacements observed with GPS: Parching of the ground during the summer of drought years and seeping of snow melt into the ground during the spring of heavy-precipitation years

Donald F Argus1, David N Wiese2, Felix W Landerer1, James S. Famiglietti1, Hilary R Martens3, Manoochehr Shirzaei4 and John T Reager II1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (3)University of Montana, Geosciences, Missoula, MT, United States, (4)Virginia Tech, Department of Geosciences, Blacksburg, United States