We thank Nicolas Wienders for current-meter analysis of the Weddell Sea section, Alex Orsi for help with the circumpolar S4 section, and Lisa Beal for advice on the Indian Ocean 32°S section. Comments on our original manuscript by Eric Kunze, Molly Baringer, and two anonymous reviewers were extremely valuable. Eberhard Fahrbach provided generous access to current-meter data from the Weddell Sea. This work was funded by NSF Grants OCE0117618 and OCE0336697; additional support for R. Lumpkin was provided by NOAA’s Office of Climate Observations and the Atlantic Oceanographic and Meteorological Laboratory. NCEP reanalysis data were provided by the NOAA/CIRES Climate Diagnostics Center (additional information is available online at http://www.cdc. noaa.gov/). The findings and conclusions in this report are those of the authors and do not necessarily represent the views of the funding agencies.
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