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Schlundt, Michael; Dierking, Jan; Rudnick, Hanna (2026): Continuous thermosalinograph oceanography along RV ALKOR cruise track AL652 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.997567

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Published: 2026-10-02 • DOI registered: 2026-10-31

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Abstract:
Underway temperature and salinity data was collected along the cruise track with a SBE21 thermosalinograph (TSG) together with a SBE38 Thermometer. Both systems worked throughout the cruise. While temperature is taken at the water inlet in about 4 m depth, salinity is calculated within the interior TSG from conductivity and interior temperature. No temperature validation was performed. Salinity was validated with independent water samples taken at the water inlet. For details to all processing steps see Data Processing Report.
Other version:
AL652 salinity samples (2026). AL652_salinity_samples.tab
Data processing report:
Schlundt, Michael (2026): Continuous thermosalinograph oceanography along RV ALKOR cruise track AL652 - Data Processing Report. GEOMAR - Helmholtz Centre for Ocean Research Kiel, DAM_DataProcessingReport_AL652.pdf
Project(s):
AI BaseCamp - Helmholtz DataHub Earth & Environment (AI_BaseCamp)
DAM Marine Data - Research Vessels (DAM_ResearchVessels)
Coverage:
Median Latitude: 54.808164 * Median Longitude: 13.839704 * South-bound Latitude: 54.140691 * West-bound Longitude: 10.015515 * North-bound Latitude: 55.811497 * East-bound Longitude: 16.518584
Date/Time Start: 2026-05-09T06:30:00 * Date/Time End: 2026-05-24T12:23:00
Minimum DEPTH, water: 4.0 m * Maximum DEPTH, water: 4.0 m
Event(s):
AL652_0_Underway-1 * Latitude Start: 54.386423 * Longitude Start: 10.198626 * Latitude End: 54.445246 * Longitude End: 10.230083 * Date/Time Start: 2026-05-09T06:30:00 * Date/Time End: 2026-05-24T12:23:00 * Elevation: 1.0 m * Campaign: AL652 (IMBOMPA) * Basis: Alkor (1990) * Method/Device: Thermosalinograph (TSG)
Comment:
Salinity was validated independently with water samples from 4m depth (tim is the time in days since Expocode of this cruise (06AK20260509), i.e. since 2026-05-09T00:00:00): Value added to salinity data = -0.0014332*tim+0.04485.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeSchlundt, MichaelGeocode
2LATITUDELatitudeSchlundt, MichaelGeocode
3LONGITUDELongitudeSchlundt, MichaelGeocode
4DEPTH, waterDepth watermSchlundt, MichaelGeocode
5Temperature, waterTemp°CSchlundt, MichaelDigital oceanographic thermometer, Sea-Bird, SBE 38
6Quality flag, water temperatureQF water tempSchlundt, MichaelSeadatanet 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/cmSchlundt, MichaelThermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT
8Temperature, water, internalT intern°CSchlundt, MichaelThermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT
9SalinitySalSchlundt, MichaelCalculated from internal temperature and conductivity
10Quality flag, salinityQF salSchlundt, MichaelSeadatanet 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
11SalinitySalSchlundt, MichaelSalinometer (SALINO)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
127455 data points

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