IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v85y2017i1d10.1007_s11069-016-2583-7.html
   My bibliography  Save this article

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

Author

Listed:
  • G. Muthusankar

    (French Institute of Pondicherry)

  • M. P. Jonathan

    (Instituto Politécnico Nacional (IPN))

  • C. Lakshumanan

    (Bharathidasan University)

  • Priyadarsi D. Roy

    (Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria)

  • K. Srinivasa-Raju

    (Anna University)

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.

Suggested Citation

  • G. Muthusankar & M. P. Jonathan & C. Lakshumanan & Priyadarsi D. Roy & K. Srinivasa-Raju, 2017. "Coastal erosion vs man-made protective structures: evaluating a two-decade history from southeastern India," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 85(1), pages 637-647, January.
    • Handle: RePEc:spr:nathaz:v:85:y:2017:i:1:d:10.1007_s11069-016-2583-7
    DOI: 10.1007/s11069-016-2583-7
    as

    Download full text from publisher

    File URL: http://link.springer.com/10.1007/s11069-016-2583-7
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1007/s11069-016-2583-7?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:nathaz:v:85:y:2017:i:1:d:10.1007_s11069-016-2583-7. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.