Arief Suryo¹, Mochamad Furqon Azis Ismail¹, Apriansyah Apriansyah² and Stephen Riser³, (1)National Research and Innovation Agency, Research Centre for Climate and Atmosphere, Bandung, Indonesia, (2)Tanjungpura University, Departement of Marine Science, Pontianak, Indonesia, (3)University of Washington, School of Oceanography, Seattle, United States