This dataset includes profile discrete measurements of dissolved inorganic carbon, total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen and other parameters measured during the R/V Oden SAS-Oden 2021 (SO21) cruise (EXPOCODE 77DN20210725) in the Arctic Ocean from 2021-07-25 to 2021-09-20. The SAS-Oden 2021 expedition (SO21) with icebreaker Oden1 (IB Oden) is the Swedish contribution to the international scientist-driven initiative ”Synoptic Arctic Survey” (SAS)2. SAS will collect primary ecosystem data in the Arctic Ocean in 2020-2022 from both ice-breaking and non-ice-breaking research vessels. The goal of SAS is to generate a comprehensive dataset that allows for an improved characterization of the Arctic Ocean with respect to its (1) physical oceanography, (2) marine ecosystems and (3) carbon cycle. The complete SAS dataset will provide a unique baseline that will allow for tracking climate change and its impacts as they unfold in the Arctic region over the coming years, decades and centuries.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature and salinity, oxygen, nutrients and other parameters measured onboard the R/V Polarstern, ARK XXVI_3; TransArc cruise (EXPOCODE 06AQ20110805) in the central Arctic Ocean from 2011-08-05 to 2011-10-07.

This dataset includes the profile discrete measurements of dissolved inorganic carbon, total alkalinity, CTD salinity and temperature collected in the summer of 2010 aboard R/V Xuelong in the Chinese Arctic Research Expedition (CHINARE10) cruise. The CHINARE project is an international collaboration between U.S. and Chinese scientists to study the water column carbonate chemistry in the western Arctic Ocean and Chukchi Sea.

This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical data collected from discrete samples and profile observations during the CCGS Louis S. St-Laurent Joint Ocean Ice Study (JOIS-10) cruise (EXPOCODE 18SN20100915) in the Arctic Ocean from 2010-09-15 to 2010-10-15. The Joint Ocean Ice Study (JOIS) in 2010 involved the collaboration of Fisheries and Oceans Canada researchers with colleagues primarily from the U.S.A and Japan. This program forms an important Canadian contribution to international climate research programs and is comprised of two ongoing programs: the Beaufort Gyre Exploration Project (BGEP), a collaboration with Woods Hole Oceanographic Institution scientists and the Pan-Arctic Climate Investigation (PACI), a collaboration with Japan Agency for Marine-Earth Science and Technology (JAMSTEC) scientists. In 2010 JOIS also included ancillary programs carried out by researchers from: the International Arctic Research Center (IARC) in Fairbanks Alaska; Tokyo University of Marine Science and Technology (TUMSAT), Japan; Kitami Institute of Technology (KIT), Japan.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical data collected from discrete samples and profile observations during the CCGS Louis S. St-Laurent Joint Ocean Ice Study (JOIS-12) cruise (EXPOCODE 18SN20120802) in the Arctic Ocean from 2012-08-02 to 2012-08-30. The Joint Ocean Ice Study (JOIS) in 2012 is an important contribution from Fisheries and Oceans Canada to international Arctic climate research programs. Primarily, it involves the collaboration of Fisheries and Oceans Canada researchers with colleagues in the USA from Woods Hole Oceanographic Institution (WHOI). The scientists from WHOI lead the Beaufort Gyre Exploration Project (BGEP) which forms part of the Arctic Observing Network (AON).

This dataset includes the profile discrete measurements of dissolved inorganic carbon, total alkalinity, CTD salinity and temperature collected during the R/V Xuelong CHINARE2008 cruise (EXPOCODE 76XL20080730) in the Arctic Ocean, Chukchi Sea from 2008-07-30 to 2008-09-11. The CHINARE project is an international collaboration between U.S. and Chinese scientists to study the water column carbonate chemistry in the western Arctic Ocean and Bering Sea.

Arctic Ocean Expedition 1991 (ODEN-91) Final Calibrated Pressure-Series CTD Data (Pressure, Temperature, Salinity) was collected from ODEN in the Arctic Ocean from August 20, 1991, to October 03, 1991. These data were submitted by Sarilee Anderson, Research Associate with Joe Reid, STS/ODF CTD Group, Oceanographic Data Facility, Scripps Institution of Oceanography, UC San Diego. The data is available in the NODC standard High-Resolution STD/CTD Data (F022) format. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.

This dataset includes chemical, discrete sample, physical and profile data collected from POLARSTERN in the Arctic Ocean, Kara Sea and Laptev (or Nordenskjold) Sea from 1993-08-06 to 1993-10-05 and retrieved during cruise 06ARKIX_4. These data include Barium, CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, Delta Oxygen - 18, HYDROSTATIC PRESSURE, NITRATE, 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 Dieter K. Fütterer of Alfred Wegener Institute for Polar and Marine Research and Leif G. Anderson of University of Gothenburg (GU) as part of the CARINA_06AQ19930806 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 the profile discrete measurements of dissolved inorganic carbon, total alkalinity, CTD salinity and temperature collected in the summer of 2012 aboard R/V Xuelong in the Chinese Arctic Research Expedition (CHINARE12) cruise. The CHINARE project is an international collaboration between U.S. and Chinese scientists to study the water column carbonate chemistry in the western Arctic Ocean and Bering Sea.