Roxy Mathew Koll¹, Panini Dasgupta¹, Michael J McPhaden², Tamaki Suematsu³, Chidong Zhang⁴ and Daehyun Kim⁵, (1)Indian Institute of Tropical Meteorology, Pune, India, (2)NOAA/PMEL, Seattle, WA, United States, (3)University of Tokyo, Bunkyo-ku, Japan, (4)NOAA Pacific Marine Environmental Laboratory, Seattle, United States, (5)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States