Global analysis of approaches for deriving total water storage changes from GRACE satellites and implications for groundwater storage change estimation

Di Long, Tsinghua University, Department of Hydraulic Engineering, Beijing, China, Bridget R Scanlon, University of Texas at Austin, Austin, TX, United States, Laurent Longuevergne, CNRS - Rennes University, Geosciences Rennes, Rennes, France and Xi Chen, Tsinghua University, Beijing, China