1. National Institute of Hydrology, Roorkee, India
2. National Institute of Hydrology, Regional Center, Patna, India
3. Postdoctoral Researcher, University of California, Davis, USA
4. Texas A and M University, College Station, Texas, USA
5. Oregon State University, Corvallis, OR, USA
6. Indian Institute of Remote Sensing, Dehradun, India
7. Jawaharlal Nehru University, New Delhi, India