1. Department of Civil Engineering, MVGR College of Engineering, Vizianagaram, Andhra Pradesh 535005, India
2. Department of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, India
3. Water Science and Engineering, IHE-Delft, Delft, Netherlands
4. Department of Hydrology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
5. GFZ German Research Centre for Geosciences, Section Hydrology, Telegrafenberg, Potsdam 14473, Germany