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Attention:

Thermosalinograph Keel 1 and Keel 2 data stored in data acquisition system DShip are uncorrected measurement data.

Summary

The thermosalinograph is an instrument used to accurately determine sea surface conductivity and temperature. The remote temperature sensor SBE38 is integrated with the SBE21 Thermosalinograph.

Manufacturer Seabird
Model SBE21 with SBE38
Serial No. n/a
Type thermosalinograph
SENSOR-Link ↪

Contacts

Name Institution Role
Mario Hoppmann Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Engineer In Charge
Sandra Tippenhauer Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Engineer In Charge
Alfred Wegener Institute for Polar and Marine Research Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research Owner

Components

Both thermosalinographs keel 1 and keel 2 consist of SBE21, external thermometer SBE38, NMEA interface box and a pipe system with a flow meter. The system is located in the box keel. The water inflow is in about 11 m depending on the ships draft. Several devices of type SBE21 and SBE38 exist. They are used in rotation and are calibrated regularly. Shown here are the devices which are currently installed.

Subdevices

TSK1

Name Model Serial Number SENSOR-
Link
Temperature Sensor SBE38 SBE38 0118 ↪
Thermosalinograph SBE21 SBE21 3191 ↪

TSK2

Name Model Serial Number SENSOR-
Link
Temperature Sensor SBE38 SBE38 0118 ↪
Thermosalinograph SBE21 SBE21 3271 ↪

Position

Infono xyz-position given, device located in box keel

Data logging, storage and archiving

Logged parameters

TSK1

Parameter Sensor Output Type Unit
conductivity keel conductivity mS/cm
salinity keel salinity PSU
sound velocity keel sound velocity m/s
temperature internal keel water temperature °C

TSK2

Parameter Sensor Output Type Unit
conductivity bow conductivity mS/cm
salinity bow salinity PSU
sound velocity bow sound velocity m/s
temperature internal bow water temperature °C

Central geographical ship's position and time standard

UTC time is supplied via NMEA telegram.
Geographical position is supplied via NMEA telegram.

Rawdata storage on board

Data storage in DShip system.

Dship

Uncorrected measurement data.

TSK1

Device name

thermosalinometer keel

Parameters

conductivity keel S/m [S/m], salinity keel [psu], soundvelocity external [m/s], temperature keel [°C], temperature keel internal [°C], TSG_KEEL.SBE21.Sentence

TSK2

Device name

TSK2

Parameters

ConductivityHz [Hz], Conductivity Keel S/m [S/m], ConductivityKHz [kHz], Conductivity ms [ms/cm], density [kg/m3], FirstVoltage [V], salinity Keel 2 [psu], SBE [Hz], SecondVoltage [Hz], Sentence, soundvelocity external [m/s], sound velocity Keel [m/s], TemperatureHz [Hz], temperature Keel [°C], temperature Keel internal [°C], TSK2.SBE21.SBE21

Data archiving on land

Shortly after the cruise the uncorrected thermosalinograph measurement data are available at the DShip onshore system https://dship.awi.de/. As soon as a post-cruise calibration was performed, the data are processed and uploaded in PANGAEA.

File format(s)

*.txt

Calibration certificates

YES

Location of certificates

Fielax GmbH (calibration information in Epic processing reports)

Documentation



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