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Shoreline changes and reef strengthening at Kavaratti island in Lakshadweep Archipelago - A case study

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Title Shoreline changes and reef strengthening at Kavaratti island in Lakshadweep Archipelago - A case study
 
Creator Prakash, T.N.
Nair, L. Sheela
Varghese, Tiju I.
 
Subject Lakshadweep islands
Monsoon waves
Coastal erosion
Short-term and long-term
Shoreline changes
Numerical modelling
 
Description 1140-1144
The
Lakshadweep islands experience severe coastal erosion problem every year due to
high monsoonal wave activity. Majority of the islands in the group are
surrounded by a reef on the western part which acts as a first line defence for
the incoming waves. It was documented from many earlier studies that the reef
height in many of these islands has decreased due to both natural and human
activities. In many of the islands in the group the widening of entrance
channel has been carried out by cutting reef edge as early as in 1971 resulting
in high waves entering the lagoonal coast causing high erosion at certain
stretches of the island coast. In this paper we are presenting the Kavaratti
Island as a case study through systematic collection of beach profiles and
monitoring of littoral environment observations for waves and currents.
Further, an attempt has also been made for a feasibility study of
reconstruction of part of the reef (~400 m length) on the northern part of the
island through numerical modelling studies which indicates that the reef
strengthening would stabilize the beach. Adopting suitable remedial measures to
allow free movement of trapped sediments could be an environment friendly soft
measure that would further improve the condition of the island coastline.
 
Date 2016-06-26T19:31:53Z
2016-06-26T19:31:53Z
2014-07
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34418
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(7) [July 2014]