Journal of Coastal Conservation

, Volume 12, Issue 4, pp 195–207

Sea-level rise and coastal vulnerability: an assessment of Andhra Pradesh coast, India through remote sensing and GIS

  • K. Nageswara Rao
  • P. Subraelu
  • T. Venkateswara Rao
  • B. Hema Malini
  • R. Ratheesh
  • S. Bhattacharya
  • A. S. Rajawat
  • Ajai
Article

DOI: 10.1007/s11852-009-0042-2

Cite this article as:
Nageswara Rao, K., Subraelu, P., Venkateswara Rao, T. et al. J Coast Conserv (2008) 12: 195. doi:10.1007/s11852-009-0042-2

Abstract

The eustatic sea-level rise due to global warming is predicted to be about 18 to 59 cm by the 2100 (IPCC 2007), which necessitates identification and protection of vulnerable sections of coasts. Assessment of vulnerability level of Andhra Pradesh (AP) coast as an example is demonstrated in this study using five physical variables, namely coastal geomorphology, coastal slope, shoreline change, mean spring tide range, and significant wave height. A coastal vulnerability index was prepared by integrating the differentially weighted rank values of the five variables, based on which the coastline is segmented into low-, moderate-, high-, and very high risk categories. About 43% of the 1,030-km-long AP coast is under very high-risk, followed by another 35% under high-risk if the sea level rises by ~0.6 m displacing more than 1.29 million people living within 2.0 m elevation in 282 villages in the region.

Keywords

Sea-level rise Coastal vulnerability index Coastal risk assessment Andhra Pradesh coast 

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • K. Nageswara Rao
    • 1
  • P. Subraelu
    • 1
  • T. Venkateswara Rao
    • 1
  • B. Hema Malini
    • 2
  • R. Ratheesh
    • 3
  • S. Bhattacharya
    • 3
  • A. S. Rajawat
    • 3
  • Ajai
    • 3
  1. 1.Department of Geo-EngineeringAndhra UniversityVisakhapatnamIndia
  2. 2.Department of GeographyAndhra UniversityVisakhapatnamIndia
  3. 3.Marine and Earth Sciences GroupSpace Applications CentreAhmedabadIndia

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