PANGAEA_997570 Continuous thermosalinograph oceanography along RV ALKOR cruise track AL649 Schlundt, Michael; Rudnick, Hanna Continuous thermosalinograph oceanography along RV ALKOR cruise track AL649 2026-10-02 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.997570 Investigator Michael Schlundt mschlundt@geomar.de Earth Science DATE/TIME LATITUDE LONGITUDE DEPTH, water Temperature, water Quality flag, water temperature Conductivity Temperature, water, internal Salinity Quality flag, salinity geoscientificInformation AL649 AL649_0_Underway-2 Thermosalinograph Digital oceanographic thermometer, Sea-Bird, SBE 38 Seadatanet flag: Data quality control procedures according to SeaDataNet (2010) Thermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT Calculated from internal temperature and conductivity Salinometer Alkor (1990) 2026-04-11 2026-04-13 Complete 54.1406894 54.7073005 10.0096811 11.8373404 4.0 m (DEPTH, water) 4.0 m (DEPTH, water) AI_BaseCamp AI BaseCamp - Helmholtz DataHub Earth & Environment DAM_ResearchVessels DAM Marine Data - Research Vessels unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 15704 data points text/tab-separated-values AL649 salinity samples (2026). https://download.pangaea.de/reference/141827/attachments/AL649_salinity_samples.tab Schlundt, Michael (2026): Continuous thermosalinograph oceanography along RV ALKOR cruise track AL649 - Data Processing Report. GEOMAR - Helmholtz Centre for Ocean Research Kiel, https://download.pangaea.de/reference/141826/attachments/DAM_DataProcessingReport_AL649.pdf

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.997570"! ** Salinity was validated independently with water samples from 4m depth (tim is the time in days since Expocode of this cruise (06AK20260411), i.e. since 2026-04-11T00:00:00): Value added to salinity data = -0.0334555*tim+0.07435.

http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://earth-data.de/about AI_BaseCamp https://en.wikipedia.org/wiki/Electrical_conductivity Conductivity https://epic.awi.de/id/eprint/37607/1/SBE21_SEACAT_UserManual.pdf Thermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT https://www.allianz-meeresforschung.de/en/activities/data-management-and-digitalisation/underway-research-data DAM_ResearchVessels https://www.seabird.com/sbe-38-digital-oceanographic-thermometer/product?id=60762467703 Digital oceanographic thermometer, Sea-Bird, SBE 38 https://www.seadatanet.org/content/download/596/file/SeaDataNet_QC_procedures_V2_%28May_2010%29.pdf Seadatanet flag: Data quality control procedures according to SeaDataNet (2010) https://www2.bsh.de/aktdat/dod/fahrtplanung/Alkor.htm Alkor (1990) DIF 9.4 2026-10-02 2026-10-31