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CTD-O2 = Conductivity Temperature Depth - Oxygen

This is an SBE Seacat profiler 19plus, made by Seabird Electronics, Inc. of Bellevue, WA, a company that got its research start right here at the Applied Physics Lab at the University of Washington.

It measures:
Temperature using a digital thermistor
Salinity using a conductivity probe (saltier water conducts electricity better than fresher water)
Depth using a barometer (every 10 m of water depth equals an additional atmosphere of pressure)

We also have a new sensor to measure:
Dissolved oxygen using a membrane technology (fish need O2 to breathe)

Polar Science Center
Applied Physics Laboratory
1013 NE 40th Street
Seattle, WA 98105

University of Washington

This material is based upon work supported by the National Science Foundation under Grant No. 0230427.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the
National Science Foundation.

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