Conductivity, temperature and depth (CTD) package.  The large white cylinders on the frame are used to collect water samples over geothermal systems.

The conductivity-temperature-depth (CTD) package. The large white cylinders on the frame are used to collect water samples over geothermal systems. Image courtesy of New Zealand American Submarine Ring of Fire 2007 Exploration, NOAA Vents Program, the Institute of Geological & Nuclear Sciences and NOAA-OE.

Related Links

New Zealand American Submarine Ring of Fire 2007

New Zealand American Submarine Ring of Fire 2007: July 30 Log

NOAA Ocean Explorer Gallery

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