Filipe Pereira¹, Kerstin Astrid Bergentz², Jennifer A MacKinnon³, Devon M Northcott⁴, Pratika Singh⁵, Drew J. Lucas³, J. Thomas Farrar⁶ and Bhaskar Parli⁷, (1)University of Caliornia San Diego, Scripps Institution of Oceanography, San Diego, United States, (2)Scripps Institution of Oceanography, La Jolla, United States, (3)University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, (4)University of California San Diego, Scripps Institution of Oceanography, San Diego, United States, (5)NATIONAL CENTRE FOR POLAR AND OCEAN RESEARCH, POLAR SCIENCE GROUP, Vasco DA Gama, India, (6)Woods Hole Oceanographic Inst, Physical Oceanography, Woods Hole, United States, (7)National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Vasco da Gama, India