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 and K. Srinivasa-Raju
Additional contact information
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

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 85, issue 1, No 34, 637-647

Abstract: 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 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s11069-016-2583-7 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:85:y:2017:i:1:d:10.1007_s11069-016-2583-7

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-016-2583-7

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().