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Hoppmann, Mario; Tippenhauer, Sandra; Hehemann, Laura (2023): Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS127 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.952353

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Abstract:
This dataset contains processed ocean temperature and salinity data at a depth of 11m along the cruise track. Raw data acquired by two SBE21 thermosalinographs and two auxiliary SBE38 temperature sensors (Sea-Bird Scientific, USA) installed in an underway seawater flow-through system on board RV Polarstern were processed to yield a calibrated and validated data set of temperature and salinity along the cruise track. Data were downloaded from DAVIS SHIP data base (https://dship.awi.de) at a resolution of 1 sec, and converted to temperature and conductivity using the pre-deployment factory calibration coefficients. The converted data were averaged to 1 min values, outliers were removed, and sensor drift was corrected using coefficients obtained from a post-season calibration performed at Sea-Bird at the end of the measurement season. Salinity was calculated from internal temperature, conductivity and pressure according to the PSS-78 Practical Salinity Scale. Processed data are provided as 1 min means of seawater temperature, conductivity and salinity, aligned with position data taken from the master track. Quality flags are appended according to the SeaDataNet Data Quality Control Procedures (version from May 2010). More details are described in the attached processing report.
Keyword(s):
Polarstern; PS127; Salinity; T/S data; TSG
Related to:
Hehemann, Laura (2022): The Expedition PS127 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2021/22. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 761, 38 pp, https://doi.org/10.57738/BzPM_0761_2022
Data processing report:
Hoppmann, Mario; Tippenhauer, Sandra (2022): Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS127 - Data Processing Report. PS127_TSG_nav.pdf
Hoppmann, Mario; Tippenhauer, Sandra (2022): General processing report of continuous thermosalinograph oceanography from RV POLARSTERN expeditions: PS127, PS128, PS129, PS130/1, PS130/2. TSG_Data_PS127toPS130_2.pdf
Further details:
Hehemann, Laura (2022): Master tracks in different resolutions of POLARSTERN cruise PS127, Bremerhaven - Cape Town, 2021-12-05 - 2022-01-04 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.942569
Project(s):
Coverage:
Median Latitude: -4.591955 * Median Longitude: -6.927136 * South-bound Latitude: -32.797437 * West-bound Longitude: -20.986390 * North-bound Latitude: 26.347461 * East-bound Longitude: 16.099595
Date/Time Start: 2021-12-17T08:29:00 * Date/Time End: 2022-01-03T13:07:00
Minimum DEPTH, water: 11.0 m * Maximum DEPTH, water: 11.0 m
Event(s):
PS127_0_Underway-23 * Latitude Start: 39.032218 * Longitude Start: -12.474069 * Latitude End: -32.790202 * Longitude End: 16.082985 * Date/Time Start: 2021-12-12T14:42:48 * Date/Time End: 2022-01-03T13:01:46 * Elevation Start: -4033.7 m * Elevation End: -2401.8 m * O2A Registry URI: https://hdl.handle.net/10013/sensor.1dfe92c9-d3fa-4b74-996d-1fdf9603f2e9 * Campaign: PS127 (GPF 21-2_023, Atlantic Transfer) * Basis: Polarstern * Method/Device: Thermosalinograph (TSG) * Comment: TSK1
PS127_0_Underway-24 * Latitude Start: 39.031017 * Longitude Start: -12.474384 * Latitude End: -32.789399 * Longitude End: 16.081133 * Date/Time Start: 2021-12-12T14:43:10 * Date/Time End: 2022-01-03T13:01:11 * Elevation Start: -4033.2 m * Elevation End: -2397.3 m * O2A Registry URI: https://hdl.handle.net/10013/sensor.3d9cfaa1-be4b-46bb-8f26-70f6799c1c22 * Campaign: PS127 (GPF 21-2_023, Atlantic Transfer) * Basis: Polarstern * Method/Device: Thermosalinograph (TSG) * Comment: TSK2
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeHoppmann, MarioGeocode – DSHIP system time
2LATITUDELatitudeHoppmann, MarioGeocode – according to master track
3LONGITUDELongitudeHoppmann, MarioGeocode – according to master track
4DEPTH, waterDepth watermHoppmann, MarioGeocode – depth of water inlet of TSG system
5Temperature, waterTemp°CHoppmann, MarioDigital oceanographic thermometer, Sea-Bird, SBE 38
6Quality flag, water temperatureQF water tempHoppmann, MarioSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)Temperature QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
7ConductivityCondmS/cmHoppmann, MarioThermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT
8Temperature, water, internalT intern°CHoppmann, MarioThermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT
9SalinitySalHoppmann, MarioCalculation according to Practical Salinity Scale PSS-78, Lewis and Perkin (1981)
10Quality flag, salinityQF salHoppmann, MarioSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)Salinity QC flag meanings:0:no QC; 1:good; 2:probably good; 3:probably bad; 4:bad; 5-7:not used; 8:interpolated; 9:missing
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
148554 data points

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