definition |
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A Conductivity, Temperature, Depth (CTD) is an electronic
instrument package that accurately reports conductivity,
temperature and depth and transmits data up the conducting wire
to a computer on board. The computer calculates salinity from
conductivity and temperature. Together, salinity and temperature
determine the density of seawater, which in turn affects its
movements; and temperature affects biological rates and
behavior.
Additional information available at
"http://octopus.gma.org/onlocation/ctd.html"
[Summary provided by Gulf of Maine Aquarium]
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