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Shipboard Thermosalinographs

Thermosalinographs are used to collect information about the sea surface, typically in flow-through systems operating continuously throughout a cruise. Thermosalinograph data can be used to calculate salinity, density, sound velocity, and other parameters of interest.  Thermosalinographs are usually installed inside and near to the hull of a ship in order to make measurements on uncontaminated seawater. Optionally, you can plumb other types of sensors into the system for a wider range of measurements. Sea-Bird manufactures two thermosalinographs: the full-featured SBE 21, and the more economical SBE 45.

See the CTDs Explained for an introductory overview of CTDs and thermosalinographs.

Externally powered thermosalinograph for shipboard determination of sea surface (pumped-water) conductivity and temperature. Internal memory, acquisition of NMEA navigational data and remote temperature data, and capability to interface with auxiliary sensors.
Small, externally powered thermosalinograph designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. Can be integrated with interface box for NMEA data and acquisition of remote temperature data.
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