Hoppmann, Mario; Tippenhauer, Sandra; Schewe, Ingo (2026): Continuous thermosalinograph oceanography along RV HEINCKE cruise track HE668 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993572 (DOI registration in progress)
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Published: 2026-05-05
Abstract:
Raw data acquired by a thermosalinograph (SBE21, Sea-Bird GmbH) in combination with an external temperature sensor (SBE38, Sea-Bird GmbH) aboard RV Heincke were processed to generate a calibrated, quality-controlled dataset of seawater temperature and salinity. The raw sensor data were initially retrieved from the DSHIP database (https://dship.awi.de) at a temporal resolution of 1 second and converted into temperature and conductivity using the pre-deployment calibration coefficients. The thermosalinograph system aboard RV Heincke is typically replaced after each expedition season, with a recalibration conducted at the manufacturer's facilities after each exchange. After post-cruise recalibration of the instruments, additional correction factors were calculated and applied to account for sensor drift. Salinity was calculated from internally measured temperatures and conductivities following the Practical Salinity Scale (PSS-78). The processed dataset is provided as 1-minute averages of salinity and seawater external temperature, synchronized with the positional data from the expedition's master track. Quality flags were assigned in accordance with the SeaDataNet Data Quality Control Procedures (May 2010).
Related to:
Schewe, Ingo (2025): Master tracks in different resolutions of HEINCKE cruise HE668, Bremerhaven - Bremerhaven, 2025-09-25 - 2025-09-25 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.987127
Data processing report:
Hoppmann, Mario; Tippenhauer, Sandra (2026): Continuous thermosalinograph oceanography along RV HEINCKE cruise track HE668 - Data Processing Report. FIELAX - Gesellschaft für wissenschaftliche Datenverarbeitung mbH, HE668_TSG_nav.pdf
Project(s):
DAM Underway Research Data (DAM_Underway)
Physical Oceanography @ AWI (AWI_PhyOce)
Coverage:
Median Latitude: 54.074938 * Median Longitude: 7.939233 * South-bound Latitude: 53.840232 * West-bound Longitude: 7.798492 * North-bound Latitude: 54.242841 * East-bound Longitude: 8.118676
Date/Time Start: 2025-09-25T08:36:00 * Date/Time End: 2025-09-25T14:45:00
Minimum DEPTH, water: 2.0 m * Maximum DEPTH, water: 2.0 m
Event(s):
HE668_0_Underway-5 * Latitude Start: 53.904498 * Longitude Start: 8.030421 * Latitude End: 53.915639 * Longitude End: 7.999531 * Date/Time Start: 2025-09-25T09:08:47 * Date/Time End: 2025-09-25T14:51:24 * Elevation Start: -14.0 m * Elevation End: -13.0 m * O2A Registry URI: https://registry.o2a-data.de/items/8558 * Campaign: HE668 (Verwaltungsausfahrt) * Basis: Heincke * Method/Device: Thermosalinograph (TSG) * Comment: interrupted during DEHGL
Parameter(s):
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:
1908 data points