Benjamin A Taylor, University of California San Diego, La Jolla, CA, United States, Yassir Eddebbar, Scripps Institution of Oceanography, La Jolla, CA, United States, Yohei Takano, NERC British Antarctic Survey, Cambridge, United Kingdom, Lynne D Talley, Scripps Institution of Oceanography, UCSD, La Jolla, United States and Shang-Ping Xie, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States