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| Note |
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Please note that operations of the CTD (Conductivity-Temperature-Depth) watersampler requires experienced scientific staff on board. The system is not operated by the ship's crew. Announce operations with the CTD Watersampler watersampler to AWI-Logistics prior to the cruise and clarify the data transfer after the cruise. |
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| Sensorweb integration |
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| urn | vessel:heincke:ctd |
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| contenttype | Metadata |
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| Manufacturer | Seabird |
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| Model | SBE911plus mit SBE32 |
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| Serial No. | n/a |
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| Type | CTD |
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| Sensorweb integration |
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| urn | vessel:heincke:ctd |
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| contenttype | Contacts |
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| Name | Institution | Role |
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| Gerd Rohardt | Alfred-Wegener-Institute | Data Scientist | | Andreas Wisotzky | Alfred-Wegener-Institute for Polar and Marine Research | Data Scientist |
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Components
The CTD system consists of the underwater unit SBE 9plus, the deck unit SBE 11plus V2 and the carousel water sampler SBE32 which is equipped with free flow water samplers manufactured by Hydro-Bios. The CTD is outfitted with a double set of temperature (SBE 3plus) and conductivity (SBE 4C) sensors that are calibrated regularly. Additionally, an altimeter, a transmissometer, an oxygen sensor and a fluorometer may be attached to the CTD unit and operated to water depths of 6000m.
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| Sensorweb integration |
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| urn | vessel:heincke:ctd |
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| contenttype | Subdevices |
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| Name | Model | Type |
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| PSA-916 Sonar Altimeter | PSA-916 | altimeter | | SBE32 water sampler | SBE32 | remote water sampler | | SBE3plus temperature sensor | SBE3plus | temperature sensor | | SBE4 conductivity sensor | SBE4 | conductivity meter | | SBE43 oxygene sensor | SBE43 | oxygen sensor | | C-Star transmissometer | C-Star | transmissometer | | ECO FL fluorometer | ECO FL | fluorescence Sensor | | SBE 5P pump | SBE 5P | pump |
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Position
| Sensorweb integration |
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| urn | vessel:heincke:ctd |
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| contenttype | LocalFrame |
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| Origin Description: | The CTD unit is usually stored on the main deck. Electronics and the computer for operation are installed in the Mess- und Registrierraum. |
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Data logging, storage and archiving
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| Sensorweb integration |
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| urn | vessel:heincke:ctd |
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| contenttype | Parameters |
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| Parameter | Sensor Output Type | Unit |
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| conductivity | conductivity | S/m | | water temperature | water temperature | °C | | transmission | visibility | % | | oxygen content | oxygen | ml/l | | pressure | pressure | dbar | | fluorescence | fluorescence | V | | distance to sea floor | distance | m |
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Central geographical ship's position and time standard
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Raw data are stored with the ManageCTD software on the aquisiton PC in following data structure:
| root directory | \\xdc\scientists\data\CTD\ |
| directory name | CruiseNo e.g. HE507 with subdirectories |
| data volume (MB per day) ca. | 50 |
| number of files per day ca. | 10 |
Data archiving on land
After consultation with the data scientist and AWI Logistics the CTD data including meta data may be transferred to PANGAEA (https://www.pangaea.de/).
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