Shoreline Changes Using Remote Sensing an Dgisen Vironment: A Case Study of Valinokkam to Thoothukudi Area, Tamil Nadu, India
Muthukumarasamy.R1, Mukesh.M.V2, Tamilselvi. M3, Singarasubramanian.S. R4, Chandrasekaran. A5, Sabeen.H.M6
1Muthukumarasamy R, Department of Earth Sciences, Annamalai University Annamalai Nagar, Chidambaram (Tamil Nadu), India.
2Mukesh M.V, Department of Earth Sciences, Annamalai University Annamalai Nagar, Chidambaram (Tamil Nadu), India.
3Tamilselvi M, Department of Earth Sciences, Annamalai University Annamalai Nagar, Chidambaram (Tamil Nadu), India.
4Singarasubramanian S.R, Department of Earth Sciences, Annamalai University Annamalai Nagar, Chidambaram (Tamil Nadu), India.
5Chandrasekaran A, Department of Earth Sciences, Annamalai University Annamalai Nagar, Chidambaram (Tamil Nadu), India.
6Sabeen H.M, Department of Geology, Government College, Kariavattam, Thiruvananthapuram (Kerala), India.
Manuscript received on 10 May 2013 | Revised Manuscript received on 18 May 2013 | Manuscript Published on 30 May 2013 | PP: 72-75 | Volume-2 Issue-6, May 2013 | Retrieval Number: F0790052613/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Coastal erosion is a worldwide difficulty distressing almost every country throughout the world having a shoreline. This complexity is probable due to the global warming, sealevel rise and the impact is the global problem. An attempt is made to study the erosion and accretion along the Valinokkam and Thoothukudi coast. Landsat ETM 1992, ETM 2000, ETM SLC OFF 2005, ETM SLC OFF 2010 and ETM SLC OFF 2012 data is utilized and comparison with toposheet no NC44- 3 and NC44-13(1920) as baseline data. It is estimated that erosion during the period 1992 to2000 was 369m, 2000 to 2005 was573m, 2005to2010was 172m and 2010 to2012 with 305m respectively. The accretion during the period 1992 to 2000 was1258m, 2000 to 2005 was 120m. 2005 to 2010 were 531m, and 2010 to2012 were 366m correspondingly. Simultaneous erosion and accretion were also observed in specific geographical areas in Hare Island as sand spits below southern harbour breaker water and urban coast. In these areas the accretion dominates, suggesting the coast as a pro-grading coast. To verify the change, wave pattern and its dynamics were also studied using land sat image 2012
Keywords: Remote Sensing & GIS, Landsat and ETM, Shoreline Erosion, Deposition, Valinokkam, Thoothukudi.
Scope of the Article: Environmental Engineering