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Heuzé, Céline; Karam, Salar; Muchowski, Julia; Padilla, Alexandra; Stranne, Christian; Gerke, Lennart; Tanhua, Toste; Ulfsbo, Adam; Laber, Christien; Stedmon, Colin A (2022): Physical Oceanography measured on bottle water samples during ODEN expedition SO21 for the Synoptic Arctic Survey. PANGAEA, https://doi.org/10.1594/PANGAEA.951264

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Abstract:
Discrete bottle values of Temperature, Salinity, Dissolved Oxygen, Chlorophyll A fluorescence and Coloured Dissolved Organic Matter (CDOM) collected in the Arctic Ocean, over the western Eurasian Basin and Lomonosov Ridge, between 2 August and 11 September 2021, from I/B Oden. This is the Swedish contribution to the international Synoptic Arctic Survey. This dataset merges the bottle data from the full-depth physical CTD and the shallow biological CTD. Both systems had the standard SeaBird SBE911 plus system with dual sensors to measure in-situ temperature and conductivity and single sensors measuring pressure and oxygen. The physical CTD also had a CDOM sensor (Turner Cyclops fluorometer), while the Chl-A fluorometer (WET Labs, ECO-AFL/FL) was moved throughout the expedition between the two systems. Salinity, Oxygen, Chl-A fluorescence and CDOM were calibrated against sample data collected and analysed by the co-authors:
- Salinity samples from the deep stations were analysed post-cruise using a salinometer (Guildline Autosal) and IAPSO standard seawater at the GEOMAR, Germany.
- Dissolved oxygen was determined onboard using an automatic Winkler titration setup with UV detection (Scripps Institute of Oceanography Oxygen Titration System version 2.35m).
- Chl-A concentration was determined post-cruise from flow cytometry (FCM) at Linnaeus University, Sweden. The samples consisted of 4 mL cryovials, of which 3.8 mL was sample water and 76 μL 25% EM grade glutaraldehyde solution (Glu stock). The samples incubated at room temperature for 5 minutes before flash freezing in liquid nitrogen and then placing in the -80 °C freezer in cryoboxes.
- CDOM was determined post-cruise at the National Institute of Aquatic Resources - DTU Aqua, Denmark, following the method of Lawaetz and Stedmon (2009)
This dataset contains the bottle data of the casts where bottles were fired. For more information about each sensor and their calibration, the reader is invited to check the cruise report (final version submitted on 20 September; shareable version with DOI coming soon)
Keyword(s):
Arctic; Bottle data; CDOM; Chl-a; CTD/Rosette; oceanography; Oxygen; Salinity; Temperature; Synoptic Arctic Survey
Further details:
Snoeijs-Leijonmalm, Pauline (2022): Expedition Report SWEDARCTIC: Synoptic Arctic Survey 2021 with icebreaker Oden. Swedish Polar Research Secretariat, http://polar.diva-portal.org/smash/record.jsf?pid=diva2%3A1712331&dswid=8122 (FULLTEXT01.pdf)
Funding:
Danish Council for Independent Research (DFF), grant/award no. 9040-00266B: New insights on ocean circulation and the fate of organic carbon in the Arctic Ocean
German Research Foundation (DFG), grant/award no. AE 93/21-1: Der arktische Ozean 2020 – Ventilationszeitskalen, anthropogener Kohlenstoff und Variabilität in einer sich verändernden Umgebung
German Research Foundation (DFG), grant/award no. TA 317/8-1: Der arktische Ozean 2020 – Ventilationszeitskalen, anthropogener Kohlenstoff und Variabilität in einer sich verändernden Umgebung
Hasselblad Foundation, grant/award no. 2019-1218: Carbon and Tracer Chemistry in the Arctic Ocean (CATCHEM)
Horizon 2020 (H2020), grant/award no. 730965: Arctic Research Icebreaker Consortium: A strategy for meeting the needs for marine-based research in the Arctic (ARICE)
Swedish Research Council (VR), grant/award no. 2018-01398_Formas: Drivers of anthropogenic changes in carbon storage and ocean acidification in the new Arctic Ocean (DRACO2)
Swedish Research Council (VR), grant/award no. 2018-03859_VR: Why is the deep Arctic Ocean Warming?
Coverage:
Median Latitude: 86.728108 * Median Longitude: -33.823488 * South-bound Latitude: 81.506833 * West-bound Longitude: -151.078000 * North-bound Latitude: 89.922833 * East-bound Longitude: 66.605667
Date/Time Start: 2021-08-02T15:17:08 * Date/Time End: 2021-09-11T12:42:25
Minimum DEPTH, water: 1.286185899 m * Maximum DEPTH, water: 4335.721255000 m
Event(s):
SO21_01-01 * Latitude: 81.506833 * Longitude: 26.737833 * Date/Time: 2021-08-02T15:17:08 * Elevation: -1243.0 m * Location: Arctic Ocean * Campaign: SAS-Oden_2021 (SO21) * Basis: Oden * Method/Device: CTD, Sea-Bird, SBE 911plus * Comment: Elevation retrieved from GEBCO
SO21_03-01 * Latitude: 82.021167 * Longitude: 30.367667 * Date/Time: 2021-08-03T11:49:58 * Elevation: -3247.0 m * Location: Arctic Ocean * Campaign: SAS-Oden_2021 (SO21) * Basis: Oden * Method/Device: CTD, Sea-Bird, SBE 911plus * Comment: Elevation retrieved from GEBCO
SO21_03-02 * Latitude: 82.063500 * Longitude: 30.446500 * Date/Time: 2021-08-03T15:56:32 * Elevation: -3233.0 m * Location: Arctic Ocean * Campaign: SAS-Oden_2021 (SO21) * Basis: Oden * Method/Device: CTD, Sea-Bird, SBE 911plus * Comment: Elevation retrieved from GEBCO
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventHeuzé, Céline
2DATE/TIMEDate/TimeHeuzé, CélineGeocode
3LATITUDELatitudeHeuzé, CélineGeocode
4LONGITUDELongitudeHeuzé, CélineGeocode
5Bottle numberBottleHeuzé, Céline
6Pressure, waterPressdbarHeuzé, Céline
7DEPTH, waterDepth watermHeuzé, CélineGeocode
8Temperature, waterTemp°CHeuzé, CélineITS-90, temperature scaleAccuracy for temperature = 0.001
9Quality flag, water temperatureQF water tempHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
10Temperature, water, potentialTpot°CHeuzé, CélineITS-90, temperature scalepotential temperature ref 0 dbar; the potential temperature was computed from the in-situ temperature using the GSW toolbox
11Quality flag, potential water temperatureQF TpotHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
12Temperature, water, conservativeTcon°CHeuzé, CélineITS-90, temperature scalethe conservative temperature was computed from the in-situ temperature using the GSW toolbox.
13Quality flag, conservative water temperatureQF TconHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
14SalinitySalHeuzé, CélinePractical Salinity Scale – 1978 (PSU78) (PSU78)
15Quality flag, salinityQF salHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
16Salinity, absoluteASALg/kgHeuzé, CélineThermodynamic Equation Of Seawater - 2010 (TEOS-10) (TEOS-10)the absolute salinity was computed from the practical salinity using the GSW toolbox; Accuracy for salinity and conductivity = 0.003
17Quality flag, absolute salinityQF ASALHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
18Density, mass densityDensitykg/m3Heuzé, CélineThermodynamic Equation Of Seawater - 2010 (TEOS-10) (TEOS-10)the density was computed from the absolute salinity and conservative temperature using the GSW toolbox
19Quality flag, densityQF rhoHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
20Oxygen, dissolvedDOml/lHeuzé, Célinethis is the one returned by the sensor
21OxygenO2µmol/kgHeuzé, Célinethis is the one returned by the sensor
22Quality flag, oxygenQF O2Heuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
23Fluorescence, chlorophyllF chlµg/lHeuzé, Céline
24Quality flag, fluorescence, chlorophyllQF F chlHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
25Fluorescence, colored dissolved organic matterfCDOMHeuzé, Céline
26Quality flag, fluorescence, colored dissolved organic matterQF fCDOMHeuzé, CélineSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
Change history:
2023-05-02T06:40:33 – The authorship was extended to include: Stranne, Christian
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
49362 data points

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