S.U.P Jinadasa^1,2, Gayan Pathirana³, Anusha Priyanthi Wijesundara¹, Hemantha W Wijesekara⁴ and Harindra J.S. Fernando⁵, (1)National Aquatic Resources Research and Development Agency, Colombo, Sri Lanka, (2)The Ocean University of Sri Lanka, Oceanography, Colombo, Sri Lanka, (3)University of Ruhuna, Sri Lanka., Oceanography and Marine Geology,, Colombo, Sri Lanka, (4)Naval Research Lab Stennis Space Center, Stennis Space Center, United States, (5)University of Notre Dame, Notre Dame, United States