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      Seawater carbonate chemistry in the Arctic Ocean during POLARSTERN cruise ARK-XXVI/3 (TransArc), in August - October, 2011

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      PANGAEA - Data Publisher for Earth & Environmental Science
      Event label, Date/Time of event, Longitude of event, Latitude of event, Elevation of event, DEPTH, water, Pressure, water, Salinity, Temperature, water, Alkalinity, total, Carbon, inorganic, dissolved, pH, Carbonate system computation flag, Carbon dioxide, Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Bicarbonate ion, Carbonate ion, Aragonite saturation state, Calcite saturation state, CTD/Rosette, Multiple investigations, CTD, SEA-BIRD SBE 911plus, SN T5027-C3290, Potentiometric open-cell titration, Coulometric titration, Spectrophotometry, Calculated using seacarb after Nisumaa et al. (2010), ARK-XXVI/3, Polarstern, European Project on Ocean Acidification (EPOCA)

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          Abstract

          F/S Polarstern cruise ARK-XXVI/3, also known as TransArc (Trans-Arctic survey of the Arctic Ocean in transition). From 5. August (Tromsö) to 7. October (Bremerhaven) a total of 1254 samples were analyzed from 56 stations. Seawater samples were sampled throughout the water column according to Dickson et al. (2007) and analyzed on board within hours. Data quality is discussed. Resulting data is correctable through the use of certified reference material (CRM), after which data is deemed to be of reasonably high quality. All samples and data were sampled, analyzed and processed by Adam Ulfsbo and Ylva Ericson (University of Gothenburg, Sweden).

          Abstract

          The seawater carbonate chemistry was calculated using seacarb with parameters: TA, DIC, S, T and depth. The dissociation constants used were Dickson et al. (2007) recommend the formulations of Lueker et al. (2000) for carbonic acid, Perez and Fraga (1987) for hydrogen fluoride and Dickson (1990) for hydrogen sulphate.

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