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Shoreline change study between Vembar and Tharuvaikulam coastal zones along the coast of Thoothukudi district, Tamil Nadu, India, using remote sensing and GIS techniques

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Title Shoreline change study between Vembar and Tharuvaikulam coastal zones along the coast of Thoothukudi district, Tamil Nadu, India, using remote sensing and GIS techniques
 
Creator Sudhakar, V
Gurugnanam, B
 
Subject Accretion
Erosion
Growth rate
Natural and human intervention
 
Description 736-742
Shoreline change study is very challenging for any coastal scientists because of its dynamic changes. Erosion and
accretion processes directly control the shoreline and coastal landforms. The present study is attempted to assess the
shoreline changes between the Vembar and Tharuvaikulam coast of the Thoothukudi district, Tamil Nadu, India. Both the
places were regarded as two zones viz. Vembar and Tharuvaikulam zone. These zones are further sub-divided into three
grids to understand and mark the erosion and deposition zones. The shorelines were digitized from satellite images of
Landsat – 5 (1997) and Landsat – 8 (2018), and also the base details were extracted from a survey of India (SOI, 1968).
These shorelines were taken to Geographic Information System for overlay analysis to determine the extent of erosion and
accretion in the study area. The result of this study shows that during the period 1968–1997, Vembar and Tharuvaikulam
zones have noticed accretion with a rate of 6.9 m2/y and 4.5 m2/y, respectively. Whereas, during the period 1997 – 2018, the
Vembar zone was subjected to erosion with a rate of -1 m2/y. While in the Tharuvaikulam zone, the accretion process has
reduced with a rate of 0.1 m2/y. The study results have shown that the Vembar zone has undergone erosion, whereas; the
Tharuvaikulam zone has undergone both erosion and accretion. The accretion process rate is less compared to the erosion
process during 1968 – 1997. The study concludes that the erosion is increasing due to natural and human intervention.
 
Date 2021-12-22T06:52:30Z
2021-12-22T06:52:30Z
2021-09
 
Type Article
 
Identifier 2582-6727 (Online); 2582-6506 (Print)
http://nopr.niscair.res.in/handle/123456789/58639
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJMS Vol.50(09) [September 2021]