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Discrete profile measurements of carbon dioxide, hydrographic and chemical data during the R/V Oden SAS-Oden 2021 (SO21) cruise (EXPOCODE 77DN20210725) in the Arctic Ocean from 2021-07-25 to 2021-09-20 (NCEI Accession 0278647)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:25 AM | Dataset Last Updated: May 08, 2026 at 12:00 AM
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.

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  • Project Metadata

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  • NCEI Dataset Landing Page

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  • Descriptive Information

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  • https://doi.org/10.48515/0v1w-8958

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  • https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/RepeatSections/CLIVAR_Arctic_Ocean.html

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  • https://www.polar.se/

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  • https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system

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  • GCMD Keyword Forum Page

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0278647 CHLOROFLUOROCARBON-11 (CFC-11) CHLOROFLUOROCARBON-12 (CFC-12) Chromophoric Dissolved Organic Matter (CDOM) Delta Oxygen-18 DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN NITRATE

Complete Metadata
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description 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.
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0278647.xml
issued 2023-05-23T00:00:00.000+00:00
keyword 
[
  "0278647",
  "CHLOROFLUOROCARBON-11 (CFC-11)",
  "CHLOROFLUOROCARBON-12 (CFC-12)",
  "Chromophoric Dissolved Organic Matter (CDOM)",
  "Delta Oxygen-18",
  "DISSOLVED INORGANIC CARBON (DIC)",
  "DISSOLVED OXYGEN",
  "NITRATE",
  "NITRITE",
  "pH",
  "phosphate",
  "SALINITY",
  "silicate",
  "sulfur hexafluoride (SF6)",
  "total alkalinity",
  "WATER TEMPERATURE",
  "carbon dioxide (CO2) gas analyzer",
  "CTD",
  "Niskin bottle",
  "nutrient autoanalyzer",
  "oxygen sensor",
  "pH sensor",
  "temperature sensor",
  "titrator",
  "chemical",
  "discrete sample",
  "physical",
  "profile",
  "ODEN",
  "GEOMAR Helmholtz Centre for Ocean Research Kiel",
  "Stockholm University",
  "University of Gothenburg",
  "GEOMAR Helmholtz Centre for Ocean Research Kiel",
  "The Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP)",
  "Arctic Ocean",
  "oceanography",
  "DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany",
  "GU > University of Gothenburg, Sweden",
  "Synoptic Arctic Survey (SAS)",
  "77DN20210725",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "Arctic Ocean",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Discrete measurement",
  "Profile",
  "ALKALI",
  "CFC",
  "CTDOXY",
  "CTDSAL",
  "CTDTMP",
  "OXYGEN",
  "PH_TOT",
  "SALNTY",
  "TCARBN",
  "AUTOANALYZER > AUTOANALYZER",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "CTD > Conductivity, Temperature, Depth",
  "NISKIN BOTTLES",
  "OXYGEN METERS > OXYGEN METERS",
  "PH METERS > PH METERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "ODEN (call sign: SMLQ, ICES code: 77DN)",
  "OCEAN > ARCTIC OCEAN",
  "Arctic Ocean"
]
landingPage https://www.ncei.noaa.gov/contact
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[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-05-08T00:00:00.000+00:00
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references 
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  "https://doi.org/10.48515/0v1w-8958",
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rights otherRestrictions
spatial 33.3,81.507,-149.985,90.0
temporal 2021-07-25T00:00:00+00:00/2021-09-20T00:00:00+00:00
theme 
[
  "geospatial"
]
title Discrete profile measurements of carbon dioxide, hydrographic and chemical data during the R/V Oden SAS-Oden 2021 (SO21) cruise (EXPOCODE 77DN20210725) in the Arctic Ocean from 2021-07-25 to 2021-09-20 (NCEI Accession 0278647)

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