Xiaolong Yu, IFREMER, Laboratoire d’Océanographie Physique et Spatiale, Brest, France, Aurelien Ponte, CNRS-IFREMER-IRD-UBO, LOPS, Plouzané, France, Shane Elipot, University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States, Dimitris Menemenlis, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Edward Zaron, Portland State University, Portland, OR, United States and Ryan Abernathey, Lamont -Doherty Earth Observatory, Palisades, NY, United States