Natural Hazards

, Volume 85, Issue 1, pp 637–647

Coastal erosion vs man-made protective structures: evaluating a two-decade history from southeastern India

  • G. Muthusankar
  • M. P. Jonathan
  • C. Lakshumanan
  • Priyadarsi D. Roy
  • K. Srinivasa-Raju
Short Communication

Abstract

Remote sensing images of AD 1991–2011 and field observations help evaluate shoreline changes (erosion and accretion) in Puducherry and Tamil Nadu states of southeastern India. A minor harbor was constructed during AD 1986–1989 in the coast of Puducherry, and it initiated the gradual process of shoreline modification. In the subsequent years, beaches located toward the north of the harbor suffered erosion (−0.12–−4.19 m/year) and there was accretion (0.27–7.25 m/year) in the southern beaches. However, the man-made structures (seawall and groin) have reduced the shoreline changes after AD 2004. In the last two decades, the rate of erosion area-wise gradually decreased (0.24–0.013 km2/year) and accretion remained constant (0.019 km2/year). Our results suggest that accretion happened in the southern side of the breakwaters and erosion occurred in the northern part. Presence of groins structures in the region in the northern part has also provoked accretion in the south and erosion in the northern side close to the State of Tamil Nadu.

Keywords

Erosion Accretion Shoreline changes GIS Seawall Puducherry Tamil Nadu Southeast coast of India 

References

  1. Aurofilio A (2002) The disappearing beach dilemma. In: Auroville today. www.auroville.org/journals&media/avtoday/2000-2003/nov_2002/beach.htm
  2. Boak EH, Turner IL (2005) Shoreline definition and detection: a review. J Coast Res 2(4):688–703CrossRefGoogle Scholar
  3. De Solan B, Muthusankar G, Lo Seen D, Thierry B, Raman AV (2001) GIS, multidate and multisource data for determining shoreline changes: a case for Gautami Godavari delta, east coast of India. ISRS 2001 symposium, Ahmadabad, 11–13 DecGoogle Scholar
  4. Hong-Yeon CHO, Lakshumanan C, Usha-Natesan (2004) Coastal wetland and shoreline change mapping of Pichavaram, south east coast of India using Satellite data. http://www.gisdevelopment.net/application/nrm/coastal/mnm/ma04081pf.htm
  5. Jiménez JA, Gracia V, Valdermoro HI, Mendoza ET, Sánchez-Arcilla A (2011) Managing erosion-induced problems in NW Mediterranean urban beaches. Ocean Coast Manag 54:907–918CrossRefGoogle Scholar
  6. Lakshmi A, Schiavina A, Banerjee P, Reddy A, Mandeen S, Rodriguez S, Apte D (2012) The challenged coast of India. A report. BNHS, NCPC, PondyCAN and TISS, p 233Google Scholar
  7. Mitchell A (1999) The ESRI guide to GIS analysis, volume 1: geographic patterns and relationships. ESRI, RedlandsGoogle Scholar
  8. Nayak S, Bahuguna A, Shaikh MG, Rao RS (1991) Manual for mapping of coastal wetlands, landfonns and shoreline changes using satellite data. Technical Note. IRSUP/SAC/MCE/TN/32/91:63Google Scholar
  9. Neelamani S, Sundaravadivelu R (2006) Erosion, protection of Pondicherry coast, southeast India. J Coast Res Spl Issue 39:880–883Google Scholar
  10. Ramesh R, Nammalwar P, Gowri VS (2008) Data base on coastal information of Tamil Nadu. Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Report, ChennaiGoogle Scholar
  11. Ramesh R, Purvaja R, Senthilvel A (2011) National assessment of shoreline change: puducherry coast. NCSCM/MoEF Rep 01:57Google Scholar
  12. Rao EP, Nair MM, Raju DV (1984) Assessment of the role of remote sensing techniques in monitoring shoreline changes: a case study of Kerala coast. Int J Remote Sens 6(34):549–558Google Scholar
  13. Schoonees JS, Theron AK, Bevis D (2006) Shoreline accretion and sand transport at groynes inside the Port of Richard Bay. Coast Eng 53:1045–1058CrossRefGoogle Scholar
  14. Sreekala SE, Baba M, Muralikrishna M (1998) Shoreline changes of Kerala coast using IRS data and aerial photographs. Ind J Mar Sci 27:144–148Google Scholar
  15. The Hindu (2002) Dredging in full swing to reclaim stretch of Pondy beach. http://www.thehindu.com/2002/09/12/stories/2002091202880300.htm
  16. The Hindu (2004) Steps to protect coastal areas from sea erosion. http://www.thehindu.com/2004/04/09/stories/200404040904790300.htm
  17. The Hindu (2009) Fishermen hit as coastal villages face sea erosion threat. http://www.thehindu.com/2009/12/15/stories/2009121553970300.htm
  18. Thieler ER, Himmelstoss EA, Zichichi JL, Ergul A (2009) Digital shoreline analysis system (DSAS) version 4.3—an Arc GIS extension for calculating shoreline change: US geological survey open file report, 2008-1278Google Scholar
  19. van Rijn LC (2011) Coastal erosion and control. Ocean Coast Manag 54:867–887CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  1. 1.French Institute of PondicherryPuducherryIndia
  2. 2.Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD)Instituto Politécnico Nacional (IPN)Ciudad de MéxicoMéxico
  3. 3.Centre for Remote SensingBharathidasan UniversityThiruchirappalliIndia
  4. 4.Instituto de GeologíaUniversidad Nacional Autónoma de México (UNAM), Ciudad Universitaria Ciudad de MéxicoMéxico
  5. 5.Institute of Remote SensingAnna UniversityChennaiIndia

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