This dataset includes Dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, nutrients and dissolved oxygen collected from discrete samples and profile observations during the R/Vs Arni Fridriksson and Bjarni Saemundsson Irminger Sea (FX9) time series cruises in the North Atlantic Ocean in from 2014-02-11 to 2022-08-09.

This dataset includes Dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, nutrients and dissolved oxygen collected from discrete samples and profile observations during the R/Vs Arni Fridriksson and Bjarni Saemundsson time series IcelandSea (LN6) cruises in the North Atlantic Ocean from 2014-02-18 to 2022-08-16.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity, dissolved oxygen, nutrients, and other measurements collected during the R/V Hans Brattstrøm cruise (EXPOCODE 58HB20201110) in the Norwegian Sea, North Atlantic Ocean from 2020-11-10 to 2021-11-16.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity, nutrients and other parameters collected from profile and discrete sample observations during R/V Johan Hjort and other research ships time series cruises in the North Atlantic Ocean, Norwegian See from 2011-01-13 to 2017-04-02. Marine CO2 system data (total alkalinity, and total dissolved inorganic carbon were collected from full water column on the IMR repeat section Fugløya-Bjørnøya in the Barents Sea, sometimes referred as the Barents Sea Opening (BSO). Sampling was generally performed once a year between January and May, although on some occasions sampling was performed at other times and other frequency.

This dataset consists of dissolved inorganic carbon (DIC), total alkalinity, pH on seawater scale, chlorofluorocarbon 12 (CFC-12), nutrients, water temperature, salinity, dissolved oxygen and other hydrographic and chemical data collected from discrete samples and profile observations during the R/V Johan Hjort cruise JH2019205 (EXPOCODE 58JH20190515) in the North Atlantic Ocean, Nordic Seas from 2019-05-15 to 2019-06-04. The purpose was to monitoring of the IMR standard transects Svinøy, Gimsøy, Bjørnøya-Vest, and Fugløya-Bjørnøya. IMR takes biological (plankton), chemical (macronutrients, chlorophyll), and physical (CTD, ADCP) data at these sections several times every year. In addition, several Argo-floats were deployed. In order to get validation samples for the BGC-Argo floats staff from UiB and NORCE joined the cruise to collect and analyze carbonate chemistry (DIC, AT, pH), oxygen, and trace gas (CFC-12, SF6) data. This metadata describes these chemical data, as well as the macronutrients and salinity data.

This dataset includes temperature, salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, partial pressure of CO2-water, CFCs and the 18O/16O ratio collected from discrete samples and profile observations during the R/Vs Arni Fridriksson and Bjarni Saemundsson seasonal cruises in the North Atlantic Ocean from 2002-02-15 to 2006-05-29.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, nutrients and other parameters collected from profile and discrete sample observations from R/V Helmer Hansen time series cruises in the Arctic Ocean in the eastern Fram Strait along 79N from 2014-01-10 to 2014-08-25.

This dataset includes discrete sample and profile observations, collected during the R/V L'Atalante BIOZAIRE III cruise (EXPOCODE 35A320031214) in the South Atlantic Ocean from 2003-12-14 to 2004-01-07. These data include Dissolved Inorganic Carbon (DIC), water temperature, salinity, dissolved oxygen, Delta Carbon-13, Delta Oxygen-18, nitrate, silicate and phosphate. The instruments used to collect these data include CTD and Niskin bottles. These data were collected by Nicolas Metzl of Sorbonne University (SU) as part of the BIOZAIRE_III dataset.

This dataset includes Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Haakon Mosby 58AA9803 cruise (EXPOCODE 58AA19980308) in the North Greenland Sea and Norwegian Sea from 1998-03-08 to 1998-03-24. These data include ALKALINITY, DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, PHOSPHATE, Potential temperature (theta), SALINITY, SILICATE and WATER TEMPERATURE. The instruments used to collect these data include CTD and bottle. These data were collected by Knud Simonsen and Truls Johannessen of Bjerknes Centre for Climate Research, University of Bergen; Geophysical Institute (GFI), Bergen, Norway as part of the CARINA/58AA19980308 dataset. The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.

This dataset includes discrete bottle measurements of Dissolved Inorganic Carbon (DIC), Total Alkalinity, temperature, salinity, oxygen and CFCs from R/V Polarstern Cruise ARKXXVII/1 (EXPOCODE 06AQ20120614) in the North Atlantic Ocean, Section 75N, from 2012-06-14 to 2012-07-15. The R/V Polarstern ARKXXVII/1 cruise is a part of the CLIVAR/GO-SHIP Repeat Sections observations from the research ships along the section 75N. This work was supported by the Deutsche Forschungsgemeinschaft (DFG) in the framework of the priority program Antarctic Research with comparative investigations in Arctic ice area by a grant to T. Tanhua and M. Hoppema: Carbon and 25 transient tracers dynamics: A bi-polar view on Southern Ocean eddies and the changing Arctic Ocean (TA 317/5, HO 4680/1)