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 to AWI-Logistics prior to the cruise and clarify the data transfer after the cruise.

Summary

CTD provided by AWI

vessel:polarstern:ctd_sbe9plus_321 (3214)



Manufacturer
Model
Serial No.PS
TypeCTD



No images available.

Contacts


NameInstitutionRole
Benjamin RabeAlfred-Wegener-InstituteData Provider
Mario HoppmannAlfred-Wegener-InstituteEditor
Sandra TippenhauerAlfred-Wegener-InstitutePrincipal Investigator
AllisonFongAlfred-Wegener-Institute
Alfred Wegener Institute for Polar and Marine ResearchAlfred Wegener Institute, Helmholz Centre for Polar and Marine ResearchOwner
Mats GranskogNorwegian Polar InstituteEditor
Sinhue Torres-ValdesAlfred-Wegener-InstituteData Provider
Laura WischnewskiAlfred-Wegener-InstituteData Provider
Dorothea BauchGEOMARData Provider
Ellen DammAWIData Provider
Clara HoppeAlfred-Wegener-InstituteData Provider
Anders TorstenssonUppsala UniversityData Provider
Julia GrosseGEOMARData Provider
Kirstin SchulzAlfred-Wegener-InstituteData Provider
Zoe KoenigUIBEditor
Ying-Chih FangAWIEditor
PlietFIELAX GmbHData Provider
Kuznetsov
Editor
Hailong LiuJiaotong-Universität ShanghaiData Provider
Lena Eggers
Data Provider
Janin SchafferAlfred-Wegener-InstituteEditor
Ingo SchuffenhauerIOWEditor
UlfsboUniversity of GothenburgData Provider
Katyanne ShoemakerUniversity of Rhode IslandData Provider
Jacob AllerholtAlfred-Wegener-InstituteData Provider
Underwater Vision Profiler SN202University of GothenburgUVP204



Components

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.

Subdevices


NameModelSerial Number
Fl. Chla. Wetlabs FLRTD
1670
SBE11plus Deckunit (mit PAR)
794
SBE32 Water sampling frame
55
SBE3plus temperature sensorSBE3plusn/a
SBE4 conductivity sensorSBE4n/a
SBE43 oxygene sensorSBE43n/a
SBE5 pump
2544
SBE5 pump
4316
SIO SUNA Nitrate profiler
732
Underwater Vision Profiler SN204UVP204



Position

No local frame definition available.

Data logging, storage and archiving

Logged parameters

No parameters available.

Central geographical ship's position and time standard

Time synchronising of the computers is regulated via Windows Domain affiliation. UTC time is supplied via NMEA telegram and processed by Seasave software.
Geographical position is supplied via NMEA telegram and processed by Seasave software.

Rawdata storage on board 

Mass data: The ManageCTD software produces data files in the mass storage. 



|| root directory | \\polsrv1\data01\CTD ||
|| directory name | CruiseNo \\ e.g. \\ ANT-XXVI-1 ||
|| file name | several files in the following subdirectories: \\ btl \\ conf1 \\ dsp \\ final \\ mat \\ odv \\ work ||
|| Data volume (MB per day) ca | 50 || 
|| Number of files per day ca | 10 ||

Data archiving on land 

After the cruise, the operator transfers the measurement data along with required meta data to AWI after consultaion with the data scientist and AWI Logistics. Then, the data (including meta data) can be made available on https://www.pangaea.de/ (for authorized users only).


|| File format(s) | raw data: *.hex, *.bl, *.hdr, *.xmlcon; processed data: *.txt || 
|| Calibration certificates | YES ||
|| Location of certificates | PI (calibration data is stored in *.xmlcon file) ||

Documentation

No resources available.