Indicator Based Approach and Geospatial Technology for Coastal Vulnerability Assessment along Chennai District Coast, Tamil Nadu State, India

• Chandra Shekhar Dwivedi ^[1] ; Swarnima Singh ^[1] ; Arvind Chandra Pandey ^[1] ; K. K. Basheer Ahammed ^[1] ; Debashis Mitra ^[2]
  1. [1] Central University of Jharkhand

     Central University of Jharkhand

     India

     
  2. [2] Indian Institute of Remote Sensing

     Indian Institute of Remote Sensing

     India

     
• Localización: Thalassas: An international journal of marine sciences, ISSN 0212-5919, Vol. 39, Nº. 2 (October 2023), 2023, págs. 719-737
• Idioma: inglés
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• Resumen

  • Coastlines are dynamic in nature and always work in the favor of maintaining the natural equilibrium. Coastal areas have the most diverse ecosystem and heavily crowded with constant changing character due to physical forces of nature, as well as human introversions. From last few decades, the coasts of India are under extreme danger because of numerous stressors like climate change and human involvement. These pressures are responsible for numerous hazards, including coastal erosion, storm surge, saltwater intrusion, and sea level rise. Coastal vulnerability study can be extremely useful for identification and management of more risk prone areas around the coast. The study aims to categorize the vulnerability of the Chennai coast using holistic approach. The study adopted multi criteria decision support system for formulating the variable for the Coastal Vulnerability Index (CVI) analysis. The study involves the analysis of seven variables which are taken to estimate the CVI value in relation to physical factors quantifiable in manner and express the relative vulnerability of the coast due to various future climate change impact. The study observed that the Chennai coast is highly vulnerable to future climate change impact, as 26% of the total coast is exhibited in the highly vulnerable and 50% exhibited in the moderate vulnerable region. CVI is one of the well-known and elementary methods to measure vulnerability and this method can be used as a common tool for contributing to the decision-making process in planning and management of coastal resources. The finding of the study can be used as a tool for planning that can help in protection and management of coastline.