Lischka, Silke; Bach, Lennart Thomas; Csenteri, Katharina; Gorb, Stanislav N; Konschak, Sonja; Michels, Jan (2024): Carbonate system parameters calculated from measured TA/DIC and measured TA/pH pairs, respectively, during POLARSTERN cruise PS111 (ANT-XXXIII/2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.966218
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Abstract:
Aragonite undersaturation (Ωar < 1) events are projected to rapidly increase in frequency and duration in the Antarctic Weddell Sea by 2050 due to uptake of increasing amounts of anthropogenic CO2. Thecosome pteropods are bioindicators of ocean acidification (OA) because their aragonite shell dissolves easily at low Ωar. This study aimed to establish a baseline of the current shell dissolution state of the pteropod Limacina helicina antarctica in relation to the water column Ωar in the southern Weddell Sea during austral summer 2018 that can be used for monitoring of progressing OA in the Weddell Sea. The present dataset provides depth profiles of the carbonate system parameters determined on water bottle samples collected alongside the CTD casts during PS111 covering pteropod collection depth and beyond. The carbonate system was calculated with the R package 'seacarb' from measured TA/DIC and TA/pH pairs, respectively. Included in this dataset are also concentrations of silicate, phosphate and chlorophyll a.
Keyword(s):
Related to:
Janout, Markus A; Hellmer, Hartmut H; Schröder, Michael; Wisotzki, Andreas (2019): Physical oceanography measured on water bottle samples during POLARSTERN cruise PS111 (ANT-XXXIII/2) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.897283
Coverage:
Median Latitude: -75.827741 * Median Longitude: -37.870880 * South-bound Latitude: -77.898024 * West-bound Longitude: -60.798980 * North-bound Latitude: -73.699985 * East-bound Longitude: -25.723797
Date/Time Start: 2018-02-03T00:18:00 * Date/Time End: 2018-02-28T09:30:00
Minimum DEPTH, water: 0.9 m * Maximum DEPTH, water: 1200.2 m
Event(s):
PS111_17-1 * Latitude: -73.699985 * Longitude: -25.733119 * Date/Time: 2018-02-03T00:18:00 * Elevation: -3244.0 m * Location: Weddell Sea * Campaign: PS111 (ANT-XXXIII/2) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
PS111_17-4 * Latitude: -73.700324 * Longitude: -25.723797 * Date/Time: 2018-02-03T04:00:00 * Elevation: -3219.0 m * Location: Weddell Sea * Campaign: PS111 (ANT-XXXIII/2) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
PS111_23-1 * Latitude: -75.952893 * Longitude: -32.043820 * Date/Time: 2018-02-04T23:37:00 * Elevation: -747.0 m * Location: Weddell Sea * Campaign: PS111 (ANT-XXXIII/2) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | doi:10.1594/PANGAEA.897283 | |||
| 2 | Date/Time of event | Date/Time | doi:10.1594/PANGAEA.897283 | |||
| 3 | Latitude of event | Latitude | doi:10.1594/PANGAEA.897283 | |||
| 4 | Longitude of event | Longitude | doi:10.1594/PANGAEA.897283 | |||
| 5 | Salinity | Sal | doi:10.1594/PANGAEA.897283 | |||
| 6 | Temperature, water | Temp | °C | doi:10.1594/PANGAEA.897283 | ||
| 7 | DEPTH, water | Depth water | m | Geocode – doi:10.1594/PANGAEA.897283 | ||
| 8 | Bottle number | Bottle | # | doi:10.1594/PANGAEA.897283 | ||
| 9 | pH | pH | Bach, Lennart Thomas | Calculated | total scale; calculated from TA and DIC; Silke Lischka (2nd PI) | |
| 10 | pH | pH | Bach, Lennart Thomas | pH 826 mobile handheld device, with Aquatrode Plus, Metrohm | total scale; Silke Lischka (2nd PI) | |
| 11 | Hydrogen ion concentration, uncertainty | H+ unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136); Silke Lischka (2nd PI) |
| 12 | pH, uncertainty | pH unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136); Silke Lischka (2nd PI) |
| 13 | Carbon dioxide | CO2 | µmol/kg | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 14 | Carbon dioxide, uncertainty | CO2 unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 15 | Fugacity of carbon dioxide in seawater | fCO2w | µatm | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 16 | Fugacity of carbon dioxide in seawater, uncertainty | fCO2 unc | ± | Bach, Lennart Thomas | Calculated | Combined standard uncertainty in "standard" fCO2; CO2 fugacity computed at in situ temperature and atmospheric pressure; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 17 | Carbon dioxide, partial pressure | pCO2 | µatm | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 18 | Carbon dioxide, partial pressure, uncertainty | pCO2 unc | ± | Bach, Lennart Thomas | Calculated | Combined standard uncertainty in "standard" pCO2; CO2 partial pressure computed at in situ temperature and atmospheric pressure; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 19 | Bicarbonate ion | [HCO3]- | µmol/kg | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 20 | Bicarbonate ion, uncertainty | [HCO3]- unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 21 | Carbonate ion | [CO3]2- | µmol/kg | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 22 | Carbonate ion, uncertainty | [CO3]2- unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 23 | Carbon, inorganic, dissolved | DIC | µmol/kg | Lischka, Silke | Automated Infra Red Inorganic Carbon Analyzer (AIRICA), MARIANDA; with a LICOR detector (LI-7000 CO2/H2O Analyzer) | calculated from TA and pH (L137–207); Bach, Lennart T (2nd PI) |
| 24 | Carbon, inorganic, dissolved, uncertainty | DIC unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 25 | Alkalinity, total | AT | µmol/kg | Lischka, Silke | Potentiometric titration, Metrohm 862 Compact Titrosampler | Bach, Lennart T (2nd PI) |
| 26 | Aragonite saturation state | Omega Arg | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) | |
| 27 | Aragonite saturation state, uncertainty | Omega Arg unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 28 | Calcite saturation state | Omega Cal | Bach, Lennart Thomas | Calculated | calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) | |
| 29 | Calcite saturation state, uncertainty | Omega Cal unc | ± | Bach, Lennart Thomas | Calculated | combined standard uncertainty; calculated from TA and DIC (L2–L136), TA and pH (L137–207); Silke Lischka (2nd PI) |
| 30 | Chlorophyll a | Chl a | µg/l | Lischka, Silke | Fluorometer, Turner Designs, 10-AU | |
| 31 | Silicate | Si(OH)4 | µmol/l | Lischka, Silke | Continuous flow analyzer, Skalar, CFA San++ | |
| 32 | Phosphate | [PO4]3- | µmol/l | Lischka, Silke | Continuous flow analyzer, Skalar, CFA San++ |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4932 data points
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