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CTD: Conductivity, Temperature, Depth

A CTD is an instrument used to determine how conductivity (C) and temperature (T) measurements in the ocean vary relative to depth (D) and is a primary tool for measuring physical properties of the ocean.  Salinity is determined from electr

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CTD Rosette

Sensors on the conductivity-temperature-depth (CTD) instrument measure the salinity and temperature of seawater, which are fundamental to understanding the physical structure of the ocean. A dissolved oxygen sensor measures the available oxygen

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