Karam, Salar; Tippenhauer, Sandra; Allerholt, Jacob; Hoppmann, Mario; Koenig, Zoé; Muilwijk, Morven; Schuffenhauer, Ingo; Schulz, Kirstin (2023): Physical oceanography measurements from a hand-held CTD during Leg 4 and 5 of POLARSTERN cruise PS122 – MOSAiC [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956142
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Abstract:
This dataset contains hydrographic data collected with a small hand-held conductivity, temperature, depth sensor (CTD, a Sea&Sun CTD48M) – mostly operated from the ice – during Leg 4 and Leg 5 of the Multidisciplinary drifting observatory for the study of Arctic climate (MOSAiC). In total, 24 profiles were obtained, 12 from each leg. The data collected was processed manually. Conductivity readings below 0.5 mS/cm and temperature readings below the surface freezing temperature were removed. A pressure offset was then subtracted to start the profile at 0 dbar. The data was then binned in steps of 0.1 dbar from the surface to 5 dbar, in steps of 0.25 dbar to 20 dbar, and in steps of 0.5 dbar below. Large density inversions were manually removed and linearly interpolated over. Absolute Salinity (SA) and Conservative Temperature (CT) were derived using the TEOS-10 GSW toolbox (McDougall & Barker, 2011).
This work was carried out as part of the international Multidisciplinary drifting Observatory for the Study of the Arctic Climate (MOSAiC) with the tag MOSAiC20192020. We thank all persons involved in the expedition of the Research Vessel Polarstern during MOSAiC in 2019-2020 (AWI_PS122_00) as listed in Nixdorf et al. (2021).
Documentation:
McDougall, Trevor J; Barker, P M (2011): Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox. http://www.teos-10.org/software.htm, 28 pp
Sea and Sun Technology: CTD48M Online and Memory Probe. https://www.sea-sun-tech.com (SeaandSun_datasheet_CTD48M_opt.pdf)
Further details:
Nixdorf, Uwe; Dethloff, Klaus; Rex, Markus; Shupe, Matthew D; Sommerfeld, Anja; Perovich, Donald K; Nicolaus, Marcel; Heuzé, Céline; Rabe, Benjamin; Loose, Brice; Damm, Ellen; Gradinger, Rolf; Fong, Allison A; Maslowski, Wieslaw; Rinke, Annette; Kwok, Ronald; Spreen, Gunnar; Wendisch, Manfred; Herber, Andreas; Hirsekorn, Marius; Mohaupt, Verena; Frickenhaus, Stephan; Immerz, Antonia; Weiss-Tuider, Katharina; König, Bjela; Mengedoht, Dirk; Regnery, Julia; Gerchow, Peter; Ransby, Daniela; Krumpen, Thomas; Morgenstern, Anne; Haas, Christian; Kanzow, Torsten; Rack, Frank R; Saitzev, Vladimir; Sokolov, Vladimir; Makarov, Alexander; Schwarze, Stefan; Wunderlich, Thomas; Wurr, Karsten; Boetius, Antje (2021): MOSAiC Extended Acknowledgement. Zenodo, https://doi.org/10.5281/zenodo.5179738
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Coverage:
Median Latitude: 85.136854 * Median Longitude: 68.220657 * South-bound Latitude: 79.182800 * West-bound Longitude: -2.738900 * North-bound Latitude: 88.746700 * East-bound Longitude: 120.724000
Date/Time Start: 2020-06-12T09:23:51 * Date/Time End: 2020-09-09T09:00:45
Minimum DEPTH, water: 0.00 m * Maximum DEPTH, water: 1992.49 m
Event(s):
PS122/4_44-43 * Latitude: 82.176608 * Longitude: 7.603386 * Date/Time: 2020-06-13T08:32:00 * Elevation: -757.0 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: CTD, handheld (hCTD) * Comment: opportunistic sampling from aft of ship in open water
PS122/4_46-180 * Latitude: 81.482435 * Longitude: 2.147856 * Date/Time: 2020-07-10T19:31:00 * Elevation: -1155.3 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: CTD, handheld (hCTD) * Comment: at Eco Lodge during 24h cycle
PS122/4_46-186 * Latitude: 81.447631 * Longitude: 1.602146 * Date/Time: 2020-07-11T10:46:00 * Elevation: -1218.0 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: CTD, handheld (hCTD) * Comment: at ECO Lodge during 24h sampling
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Tippenhauer, Sandra | |||
| 2 | DATE/TIME | Date/Time | Tippenhauer, Sandra | Geocode | ||
| 3 | LATITUDE | Latitude | Tippenhauer, Sandra | Geocode | ||
| 4 | LONGITUDE | Longitude | Tippenhauer, Sandra | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Tippenhauer, Sandra | Calculated according to UNESCO (1983) | Geocode |
| 6 | Pressure, water | Press | dbar | Tippenhauer, Sandra | Multiparameter probe (CTD), Sea & Sun Technology, CTD48 | |
| 7 | Temperature, water | Temp | °C | Tippenhauer, Sandra | Multiparameter probe (CTD), Sea & Sun Technology, CTD48 | ITS-90, in-situ |
| 8 | Quality flag, water temperature | QF water temp | Tippenhauer, Sandra | |||
| 9 | Salinity | Sal | Tippenhauer, Sandra | Calculated | PSU78 | |
| 10 | Quality flag, salinity | QF sal | Tippenhauer, Sandra | |||
| 11 | Temperature, water | Temp | °C | Tippenhauer, Sandra | Calculated | ITS-90, conservative |
| 12 | Salinity, absolute | ASAL | g/kg | Tippenhauer, Sandra | Calculated | |
| 13 | Density, potential | Dens pot | kg/m3 | Tippenhauer, Sandra | Calculated | ref. pres. 0 dbar |
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:
199216 data points
Download Data
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