Department of Civil Engineering: Student Scholar Talk Series | Shiv Nadar University
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Department of Civil Engineering: Student Scholar Talk Series

Event Date: 
Thursday, April 28, 2022 -

The Department of Civil Engineering invites you for a presentation under Student Scholar Talk Series by Ms. Laxmi Gupta, Ph.D. student, Civil Engineering; Ph.D. Advisor: Dr. Jagabandhu Dixit on 28 April 2022 from 12:30 PM - 02:00 PM (IST). The title of the presentation is “Geospatial Flood Risk Mapping of Assam (NER of India) using the MCDA-AHP approach at the Regional and Administrative Levels”.

From ancient times, human civilizations have flourished on the banks of rivers. India is known as the “Land of Rivers,” which forms a complex river network system by major rivers, namely Ganga, Yamuna, Brahmaputra, Godavari, Narmada, Tapi, Krishna, Mahanadi, etc., and their tributaries. With the onset of the monsoon season, the floodplains, coastal areas, and the deltaic region of India experience flood every year. Floods are hydrological disasters that can alter the physical, socioeconomic, and environmental settings of a region. For India, which is more vulnerable to floods, a comprehensive flood risk map can act as a critical tool for executing an effective flood management system at the regional or local scale. Flood risk is prominent in the Assam, in the North-Eastern Region (NER) of India, due to the highly braided Brahmaputra River and the influence of the southwest tropical monsoon. The region suffers enormous losses and damage in terms of property and lives. The objective of the present study is to develop an efficient and reliable methodology to prepare a flood risk map for Assam, by the integration of hazard and vulnerability components. Three indices, namely flood hazard index (FHI), flood vulnerability index (FVI), and flood risk index (FRI), are developed using the Multi-Criteria Decision Analysis technique (MCDA) – Analytical Hierarchy Process (AHP) in the GIS environment for the regional and administrative level of Assam. The selected hazard and vulnerability indicators define the topographical, geological, meteorological, drainage characteristics, land use land cover, and demographical features of Assam. The results show that more than 70% of the total area lies in the moderate to very high FHI class, 57% have moderate to high FVI, and more than 50% have moderate to very high FRI class. The outcome of the present study will provide a comprehensive tool for flood risk management by the local governing authorities and stakeholders.

Thursday 28, Apr 2022
12:30 PM - 02:00 PM