Thanks are given to Frank Johnson (RBR, Ltd.) for development of the thermistor chain and advice with postdeployment processing and to Chris Garrett for valuable discussions and suggestions. Special thanks also are given to Helen Johnson, Richard Dewey, Fiona McLaughlin, Eddy Carmack, Doug Sieberg, Sarah Zimmerman, and the captain and crew of the CCGS Louis S. St-Laurent. CTD data used here were collected on the 2002 and 2003 Arctic expeditions aboard the CCGS Louis S. St-Laurent (supported by the Fisheries and Oceans Canada Strategic Science Fund, Institute of Ocean Sciences). The PITSA mooring was funded by Environment Canada through the Climate Change Action Fund initiative in Cryospheric Monitoring for Canada. The support of the U.S. Office of Naval Research, the Natural Sciences and Engineering Research Council, Canada, and the Doherty Foundation is also gratefully acknowledged. The NCEP reanalysis data were provided by the Climate Diagnostics Center of the U.S. National Oceanic and Atmospheric Administration.
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