Metfies, Katja; Hoppmann, Mario; Tippenhauer, Sandra; Rohardt, Gerd (2021): Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS121 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930022
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Abstract:
Raw data acquired by two thermosalinographs (SBE21, SeaBird GmbH) on board RV Polarstern were processed to yield a calibrated and validated data set of temperature, conductivity and salinity during expedition PS121. Both sensors were equipped with a more accurate external temperature sensor (SBE38, Sea-Bird GmbH). Data were downloaded from the DAVIS SHIP data base (https://dship.awi.de) with a resolution of 1 sec. The raw hex data were converted to temperature and conductivity while a sensor drift correction was applied using calibration coefficients from before and after the expedition. Salinity was calculated according to the instructions from the Practical Salinity Scale PSS-78, using the obtained (internal) temperature and conductivity data and a pressure of 11 dbar which represents the water depth of the inlet of the TSG system on Polarstern. A speed filter of 0.5 knots minimum speed was applied. Processed data are provided as 10min means of seawater salinity, conductivity and temperature, aligned with position data taken from the master track of PS121 (doi:10.1594/PANGAEA.908157). Further details and evaluation of the data is outlined in the data processing report found at the EPIC repository under URL (https://hdl.handle.net/10013/epic.7fffb528-06bd-48ae-8489-cea0444c4eab).
Related to:
Metfies, Katja (2020): The Expedition PS121 of the Research Vessel POLARSTERN to the Fram Strait in 2019. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 738, 95 pp, https://doi.org/10.2312/BzPM_0738_2020
Data processing report:
Rohardt, Gerd (2021): Continuous thermosalinograph oceanography along RV POLARSTERN cruise track PS121. hdl:10013/epic.411565bf-1517-42e3-b1f0-98a21d2e6230
Rohardt, Gerd (2021): General processing report of continuous thermosalinograph oceanography from POLARSTERN cruises PS121, PS122_1, PS122_2, PS122_3, PS122_4 and PS122_5. hdl:10013/epic.7fffb528-06bd-48ae-8489-cea0444c4eab
Coverage:
Median Latitude: 75.109213 * Median Longitude: 4.767378 * South-bound Latitude: 55.204416 * West-bound Longitude: -5.453931 * North-bound Latitude: 79.959679 * East-bound Longitude: 20.406696
Date/Time Start: 2019-08-11T07:40:00 * Date/Time End: 2019-09-13T05:30:00
Minimum DEPTH, water: 11 m * Maximum DEPTH, water: 11 m
Event(s):
PS121_0_Underway-65 * Latitude Start: 55.466719 * Longitude Start: 6.392676 * Latitude End: 69.679539 * Longitude End: 18.996667 * Date/Time Start: 2019-08-11T07:33:45 * Date/Time End: 2019-09-13T06:00:45 * Elevation: -28.8 m * Location: North Sea * Campaign: PS121 * Basis: Polarstern * Method/Device: Thermosalinograph (TSG)
Comment:
We thank Franziska Nehring (Fielax) for the processing of the data. We acknowledge the support of Winfried Markert and Olaf Hüttebräucker (Laeisz) for maintenance of the instruments on board. We appreciate the help of the PANGAEA team for their help in archiving the dataset.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Rohardt, Gerd | Geocode | ||
| 2 | LATITUDE | Latitude | Rohardt, Gerd | Geocode | ||
| 3 | LONGITUDE | Longitude | Rohardt, Gerd | Geocode | ||
| 4 | DEPTH, water | Depth water | m | Rohardt, Gerd | Geocode | |
| 5 | Temperature, water | Temp | °C | Rohardt, Gerd | Digital oceanographic thermometer, Sea-Bird, SBE 38 | |
| 6 | Temperature, water, internal | T intern | °C | Rohardt, Gerd | Thermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT | |
| 7 | Conductivity | Cond | mS/cm | Rohardt, Gerd | Thermosalinograph (TSG), Sea-Bird, SBE 21 SEACAT | |
| 8 | Salinity | Sal | Rohardt, Gerd | Calculated from temperature and conductivity |
Change history:
2023-01-23T08:35:37 – Parameter "DEPTH, water" was added.
2023-01-23T09:17:01 – Parameter "DEPTH, water" was added.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
11968 data points
Download Data
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