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The CTD probe measures conductivity and temperature along a vertical transect through the water body. The measured parameter are used to calculate the salinity of the water. Additionally, up to 24 water samples can be taken in different water depths during the CTD measurements. |
CTD provided by AWI vessel:polarstern:ctd_sbe9plus_321 (3214) | ||||
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No images available.  |
Contacts
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Alfred-Wegener-Institute | Data Provider |
Principal Investigator |
AllisonFong | Alfred-Wegener-Institute | Alfred Wegener Institute
Mats Granskog | Norwegian Polar Institute | Editor | Sinhue Torres-Valdes | Alfred-Wegener-Institute | Data Provider | Laura Wischnewski | Alfred-Wegener-Institute | Data Provider | Dorothea Bauch | GEOMAR | Data Provider | Ellen Damm | AWI | Data Provider | Clara Hoppe | Alfred-Wegener-Institute | Data Provider | Anders Torstensson | Uppsala University | Data Provider | Julia Grosse | GEOMAR | Data Provider | Kirstin Schulz | Alfred-Wegener-Institute | Data Provider | Zoe Koenig | UIB | Editor | Ying-Chih Fang | AWI | Editor | Pliet | FIELAX GmbH | Data Provider | Kuznetsov | Editor | Hailong Liu | Jiaotong-Universität Shanghai | Data Provider | Lena Eggers | Data Provider | Janin Schaffer | Alfred-Wegener-Institute | Editor | Ingo Schuffenhauer | IOW | Editor | Ulfsbo | University of Gothenburg | Data Provider | Katyanne Shoemaker | University of Rhode Island | Data Provider | Jacob Allerholt | Alfred-Wegener-Institute | Data ProviderUnderwater Vision Profiler SN202 | University of GothenburgUVP | 204 | |
Components
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The system consits of the CTD underwater unit (SBE9), the CTD shipboard equipment (SBE11), the watersampler carousel (SBE32) with 24 x 12 liter bottles (OTE) and the data acquisition computer with installed data acquisition software Seasave (V7.23.1) and data processing software SBE Data Processing (V7.22.5) and ManageCTD. The CTD underwater unit is equipped with 2 temperature (SBE3plus) and 2 conductivity (SBE4C) sensors by default, which are calibrated on a regular basis. Several external sensors are available, which can be used in water depth up to 6000m: altimeter (Benthos PSA-916D), Fluorometer (Dr. Haardt or Wetlabs EcoFLR), Oxygen sensor (SBE43), Transmissiometer (Weblabs CStar 25cm), mechanical bottom detector. Not all sensors of following list are every time avalable, because calibration procedures may take a while, especially when the sensors need to be sent to firms outside Europe. |
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conductivityNERC |
SBE11plus Deckunit (mit PAR) | 794 |
SBE43 oxygene sensor |
SBE5 pump | 2544
4316 | SIO SUNA Nitrate profiler | 732 | Underwater Vision Profiler SN204 | UVP | 204 |
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Position
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Data logging, storage and archiving
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Central geographical ship's position and time standard
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