1. Department of Geology and Geophysics, Indian Institute of Technology Kharagpur, Kharagpur, India
2. Interdisciplinary Centre for Water Research, Indian Institute of Science, Bangalore, India
3. School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
4. Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA