PANGAEA_993532 Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS148 Hoppmann, Mario; Tippenhauer, Sandra; Dannheim, Jennifer Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS148 2026-04-14 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993532 Investigator Mario Hoppmann mario.hoppmann@awi.de Earth Science DATE/TIME LATITUDE LONGITUDE DEPTH, water Temperature, water Quality flag, water temperature Conductivity Temperature, water, internal Salinity Quality flag, salinity geoscientificInformation PS148 PS148_0_Underway-5 PS148_0_Underway-6 Salinity T/S data Thermosalinograph Water temperature Digital oceanographic thermometer, Sea-Bird, SBE 38 Seadatanet flag: Data quality control procedures according to SeaDataNet (2010) Thermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT Calculation according to Practical Salinity Scale PSS-78, Lewis and Perkin (1981) Polarstern 2025-05-29 2025-06-28 Complete 54.180094 79.964245 -5.714501 18.729137 11.0 m (DEPTH, water) 11.0 m (DEPTH, water) DAM_Underway DAM Underway Research Data DataHub DataHub Earth and Environment of the Helmholtz Association AWI_PhyOce Physical Oceanography @ AWI 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 255396 data points text/tab-separated-values Dannheim, Jennifer (2025): The Expedition PS148 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 803, 137 pp, https://doi.org/10.57738/BZPM_0803_2025 Hoppmann, Mario; Tippenhauer, Sandra (2026): Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS148 Data Processing Report. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, https://download.pangaea.de/reference/139232/attachments/PS148_TSG_nav.pdf Hoppmann, Mario; Tippenhauer, Sandra (2026): General processing report of continuous thermosalinograph oceanography from RV POLARSTERN expeditions: PS148, PS149 and PS150. https://download.pangaea.de/reference/139233/attachments/TSG_Data_PS148toPS150.pdf Dannheim, Jennifer (2025): Master tracks in different resolutions of POLARSTERN cruise PS148, Bremerhaven - Tromsø, 2025-05-29 - 2025-06-29 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.984143

Raw data acquired by two SBE21 thermosalinograph and two auxiliary SBE38 temperature sensor (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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993532"!

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://doi.org/10.1016/0198-0149(81)90002-9 Calculation according to Practical Salinity Scale PSS-78, Lewis and Perkin (1981) https://doi.org/10.17815/jlsrf-3-163 Polarstern https://doi.org/10.57738/BZPM_0803_2025 PS148 https://doi.org/10.57738/BZPM_0803_2025 The Expedition PS148 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025 https://doi.pangaea.de/10.1594/PANGAEA.984143 Master tracks in different resolutions of POLARSTERN cruise PS148, Bremerhaven - Tromsø, 2025-05-29 - 2025-06-29 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://helmholtz.software/projects/datahub DataHub https://www.allianz-meeresforschung.de/kernbereiche/datenmanagement-und-digitalisierung#unterwegs DAM_Underway https://www.awi.de/en/about-us/organisation/staff/single-view/mario-hoppmann.html https://www.awi.de/en/science/climate-sciences/physical-oceanography.html AWI_PhyOce 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) DIF 9.4 2026-04-14 2026-04-22