Natural Hazards

, Volume 86, Issue 2, pp 821–831 | Cite as

Storm surge vulnerability assessment of Saurashtra coast, Gujarat, using GIS techniques

  • Manik Mahapatra
  • R. Ratheesh
  • A. S. Rajawat
Original Paper


The coastal stretch of Saurashtra, Gujarat, is seriously threatened by storm surges. Hence, assessing the preparedness to storm surge impacts is a major task in coastal disaster management where identification of relative vulnerability of coastal stretches is a prime concern. The aim of this study is to assess coastal vulnerability related to storm surge events along the coastal talukas of Saurashtra coast, by analyzing physical features and demographic variables using Geographical Information System (GIS) techniques. Vulnerability of a taluka is defined in terms of its exposure, sensitivity, and adaptive capacity. We calculated vulnerability of Exposure Index, Sensitivity Index, and Adaptive Capacity Index separately in ArcMap s/w, and the vulnerability map of different indices in the study region was drawn. The Total Vulnerability Index (TVI) is prepared by integrating the above index. The TVI map shows that Kalyanpur, Porbandar, and Talaja talukas are highly vulnerable in comparison with other talukas as they have large area under low-lying, high sensitivity value, and low adaptive capacity value. On the other hand, Diu and Maliya are lower vulnerable due to the presence of rocky/cliffy coast, sand dune, small coastal length and located in elevated region although there exists high population density and built-up area. Our research finding will assist coastal disaster managers and decision makers to plan appropriate measures to minimize the losses due to storm surge impacts.


Storm surge Coastal Vulnerability Index Exposure Index Sensitivity Index Adaptive Capacity Index Saurashtra coast Gujarat 



The authors express their sincere gratitude to Shri Tapan Mishra, Director, SAC, Ahmedabad, for providing required data and support. The authors are thankful to Dr. Ramesh Ramachandran, Director, and Dr. Purvaja Ramachandran, Scientist-G, NCSCM, Chennai, for providing valuable guidance, support and constant encouragement.


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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.National Centre for Sustainable Coastal Management, Ministry of Environment, Forest and Climate ChangeAnna University CampusChennaiIndia
  2. 2.Space Applications CentreIndian Space Research OrganisationAhmedabadIndia

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