This book explores fluvial processes and their consequences on river dynamics in India. It discusses the integration of geomorphic, hydrologic, and socio-economic data with various policies and decisions regarding sustainable river basin management. The volume looks at the origin and development of streams, chronology of fluvial geomorphology, fluvial system concept, process-form interaction, river dynamics, channel migration, flow regime, channel types, and hydraulic and morphometric parameters; and explains how changing hydro-geomorphological dynamics have influenced land use patterns, nature of fluids, behaviour of floods, etc. It examines channel migration vulnerability and bank erosion hazard vulnerability of the Torsa River in the eastern region of India as a case study using channel migration zone and Bank Erosion Hazard Index models. The book presents a new research framework based on field surveys, scientific investigations, and analytical techniques and methods to interpret key geoinformatics data.

With its extensive illustrations, this book will be useful to students, teachers, and researchers of geography, earth sciences, environmental geology, and environment and disaster management. It will also interest geographers, civil engineers, hydrologists, geomorphologists, planners, and other individuals and organizations working on fluvial processes and riverbank erosion problems globally.

Sourav Dey is Assistant Professor, Department of Geography, Darjeeling Government College, Darjeeling, West Bengal, India. He has served as Guest Lecturer at Dewanhat Mahavidyalaya, and Thakur Panchanan Mahila Mahavidyalaya, Cooch Behar, West Bengal, India. He completed his Ph.D. from University of Gour Banga, Malda, West Bengal, India, and was awarded Junior Research Fellowship by the University Grants Commission. He specializes in fluvial geomorphology and has published several research articles in journals and edited volumes. He is a life member of the Indian Institute of Geomorphologists, Allahabad, India.

Sujit Mandal is Professor of Geography and Dean, Faculty of Science, Diamond Harbour Women's University, West Bengal, India. He was formerly Professor at University of Gour Banga, West Bengal, India. He completed his Ph.D. from Vidyasagar University, and specializes in applied geomorphology, soil geography, environmental hazards and disasters and geospatial technology. He is the author of more than 70 research articles published in journals, and three international books. He is the principal investigator of a Minor Research Project sponsored by UGC and a Major Research Project sponsored by ICSSR. He has been associated with several academic and administrative bodies.

Foreword by Ramkrishna Maiti

1. Introduction to Fluvial Geomorphology: A Review

2. River Basin Morphometry: A Quantitative Study

3. Channel Geometry and Channel Bed Configuration

4. Hydraulic Geometry of Channel

5. Modelling Riverbank Erosion Hazards

6. Channel Stability and Instability

7. Riverbank Erosion Hazard and Human Vulnerability

8. Channel Migration Zones and Bank Erosion Vulnerability: A Scientific Approach for Suitable Site Selection for Human Habitation