Martha Schonau, Applied Ocean Sciences, LLC, Fairfax Station, VA, United States, Daniel L Rudnick, Scripps Institution of Oceanography, La Jolla, CA, United States, Ganesh Gopalakrishnan, University of California San Diego, SIO, La Jolla, CA, United States, Bruce D Cornuelle, University of California San Diego, La Jolla, CA, United States and Bo Qiu, Univ Hawaii Manoa, Honolulu, HI, United States