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Coastal vulnerability assessment for Chennai, east coast of India using geospatial techniques

DRS at CSIR-National Institute of Oceanography

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Title Coastal vulnerability assessment for Chennai, east coast of India using geospatial techniques
 
Creator ArunKumar, A.
Kunte, P.D.
 
Subject vulnerability
disasters
coastal zone management
 
Description The 56-km coastal zone of Chennai district of the Tamil Nadu state, southeast coast of India, which includes tourist resorts, ports, hotels, fishing villages, and towns, has experienced threats from many disasters such as storms, cyclones, floods, tsunami, and erosion. This was one of the worst affected area during 2004 Indian Ocean tsunami and during 2008 Nisha cyclone. The present study aims to develop a Coastal Vulnerability Index for the Chennai coast using eight relative risk variables to know the high and low vulnerable areas, areas of inundation due to future SLR, and land loss due to coastal erosion. Both conventional and remotely sensed data were used and analyzed with the aid of the remote sensing and geographic information system tools. Zones of vulnerability to coastal natural hazards of different magnitude (high, medium, and low) are identified and shown on a map. Coastal regional elevation, near-shore bathymetry, and socio-economic conditions have been considered as additional important variables. This study revealed that 11.01 km of the coastline has low vulnerability, 16.66 km has medium vulnerability, and 27.79 km is highly vulnerable in the study area, showing the majority of coastline is prone to erosion. The map prepared for the Chennai coast can be used by the state and district administration involved in the disaster mitigation and management plan and also as a tool in planning a new facility and for insurance.
 
Date 2012-09-13T05:17:08Z
2012-09-13T05:17:08Z
2012
 
Type Journal Article
 
Identifier Natural Hazards, vol.64; 2012; 853-872
http://drs.nio.org/drs/handle/2264/4167
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2012] Springer.
 
Publisher Springer