1. Department of Geography, Cooch Behar Panchanan Barma University, Cooch Behar, India
2. Department of Earth and Environmental Science, Faculty of Science, Kumamoto University, Kumamoto, Japan
3. Department of Geography, Rampurhat College, Birbhum, India
4. Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto, Japan
5. International Research Organization for Advanced Science and Technology, IKumamoto University, Kumamoto, Japan
6. Department of Civil Engineering, University of Applied Sciences, Lübeck, Germany
7. Department of Civil Engineering, Ilia State University, Tbilisi, Georgia