1. Global Modeling and Assimilation Office; NASA Goddard Space Flight Center; Greenbelt Maryland USA
2. GESTAR; Universities Space Research Association; Columbia Maryland USA
3. Department of Earth and Environmental Sciences; KU Leuven; Leuven Belgium
4. Hydrological Science Lab; NASA Goddard Space Flight Center; Greenbelt Maryland USA
5. Physical Sciences Division; NOAA/Earth System Research Laboratory; Boulder Colorado USA
6. Cooperative Institute for Research in the Environmental Sciences; University of Colorado Boulder; Boulder Colorado USA
7. Department of Geology and Geophysics; Indian Institute of Technology West Bengal; Kharagpur India
8. School of Environmental Science and Engineering; Indian Institute of Technology West Bengal; Kharagpur India