The National Ocean Partnership Program and the National Oceanic and Atmospheric Administration (NOAA) Office of Oceanic and Atmospheric Research funded this analysis. The ITP data were acquired under National Science Foundation (NSF) Grant OCE0324233. Dr. Donald Denbo pointed out the artifacts in the float data resulting from conductivity cell thermal mass error. Dr. Elizabeth Steffen helped with (unpublished) laboratory investigations of the SBE-41 CTD conductivity cell response to temperature changes. Comments by Hugh Milburn, James Thompson, and two anonymous reviewers helped to improve the final version of this manuscript. The float data used herein were collected and made freely available by Argo (a pilot program of the Global Ocean Observing System) and the national programs that contribute to it (see online at http://www.argo.net/). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of NSF or NOAA. The mention of a commercial product herein does not constitute endorsement by NOAA or NSF.
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