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Conducting a CTD cast aboard the USCGC Healy. Launched from the starboard A-frame, this device measures Conductivity (to determine salinity), Temperature, & Depth and returns water samples from user-selected depths via the array ("rosette") of trippable Niskin bottles. Filmed by PolarTREC Teacher Bill Schmoker on the 2010 International Extended Continental Shelf Survey.

This program is supported by the National Science Foundation. Any opinions, findings, and conclusions or recommendations expressed by this program are those of the PIs and coordinating team, and do not necessarily reflect the views of the National Science Foundation.