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Rameswaram Island, Southeast of India is bordered by both the Gulf of Mannar and Palk Bay on the southern and the northern
sides respectively, is unique in nature and subjected to differential season changes prevailing on both sides. The extreme
southeastern part of Rameswaram Island, known as Dhanushkodi Foreland, a long sand spit of about 20 km length is formed
up to Arimunai and it tends to grow longer and wider. The southern side of erstwhile Dhanushkodi township facing the Gulf of
Mannar underwent severe erosion and subsidence between AD February 1948, January 1949 and particularly the cyclone of AD
1964. Consequently, the southern part of the township comprising places of worship, residential areas, roads, etc. over a width of
~ 500 m along the N-S direction and a stretch of 7 km along WNW-ESE direction was destroyed by wave attack and submerged
to the depth of 5 m. Continuous observation of water quality, sea bed and beach sediments, beach profile and shoreline studies
combined with coastal hydrodynamic modeling reveal the underlying process taking place. This unveiling of fact shall help the
policy makers to solve the issues related to Sethusamudram Shipping Canal project.
Usha Natesan, is a Civil Engineer with specialization in coastal engineering and Remote Sensing. She is presently serving as Professor of Civil
Engineering and also as the Director, Centre for Research, Anna University, Chennai. She is an active researcher handling several sponsored
research projects and twelve scholars have been awarded Ph.D. degree under her mentorship. She has 82 journal publications to her credit. She
is serving as a Advisory Board member and reviewer for SCI National and International journals. She had been the recipient of the Tamil Nadu
Young Women Scientist Award - 2002 instituted by Government of Tamil Nadu and Faculty awards for Active Researcher for 2012 instituted by Anna
University, Chennai. She delivered invited talks in her specialization in several Conferences and Universities both in India and abroad.
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