This work was funded in part by NOAA’s Climate Data Record Program, managed by the National Climatic Data Center. We are grateful to NCDC and the NOAA/Climate Program Office, which provided partial support for this work. The graphics for all of the figures were computed using the Grid Analysis and Display System (GrADS; available online at http://grads.iges.org/grads) and finalized by the NCDC Graphics Department. Both DCB and RWR were partially supported by NASA Grant NS214A funded through Oregon State University. The research of JRJ and MJM leading to these results has received funding from the European Community’s Seventh Framework Programme FP7/2007-2013 under Grant Agreement 283367 (MyOcean 2). DM performed this work at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.
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It is planned that the two-stage OI analysis will be produced as an “experimental” product.