gov.noaa.nodc:0234470 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-07-07T07:36:04Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Partial pressure of carbon dioxide, temperature and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2020 (NCEI Accession 0234470) 2021-05-29 publication 2021-05-28 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0234470 NCEI Archive Management System 0234470 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Kevin M. O'Brien University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies (CICOES) kevin.m.o'brien@noaa.gov https://cicoes.uw.edu/ HTTPS University of Washington Cooperative Institute for Climate, Ocean and Ecosystem Studies (CICOES) website Institution web page information resourceProvider NOAA Pacific Marine Environmental Laboratory (PMEL) https://www.pmel.noaa.gov/ HTTPS NOAA Pacific Marine Environmental Laboratory (PMEL) website Institution web page information resourceProvider Are Olsen Bjerknes Centre for Climate Research Are.Olsen@gfi.uib.no https://bjerknes.uib.no/ HTTPS Bjerknes Centre for Climate Research website Institution web page information principalInvestigator Meike Becker GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) mbecker@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information principalInvestigator Olsen, Are Bjerknes Centre for Climate Research https://bjerknes.uib.no/ HTTPS Bjerknes Centre for Climate Research website Institution web page information author Becker, Meike GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information author University of Bergen contributor tableDigital This dataset includes surface underway chemical, meteorological and physical data collected from SOOP M/V Nuka Arctica cruises in the North Atlantic Ocean from 2020-01-01 to 2020-04-15. These data include measurements of mole fraction of carbon dioxide (CO2) in the equilibrator headspace (dry) at equilibrator temperature, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, water temperature in equilibrator, sea surface temperature, and fugacity of CO2 in sea water at SST and 100% humidity. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement. The major objectives of this SOOP project is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters in the North Atlantic Ocean. Funding Information: University of Bergen, Bjerknes Centre for Climate Research (Surface Water pCO2 Measurements from Ships of Opportunity (SOOP)) completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0234470 Preview graphic PNG 0234470 NCEI ACCESSION NUMBER 2021-05-08 publication Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water WATER TEMPERATURE theme NODC DATA TYPES THESAURUS carbon dioxide (CO2) gas analyzer temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS NUKA ARCTICA platform NODC PLATFORM NAMES THESAURUS University of Bergen dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Pacific Marine Environmental Laboratory dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian SOOP Lines project Cruise ID 26NA20200101 26NA20200116 26NA20200122 26NA20200203 26NA20200325 26NA20200407 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords Nuka_Arctica_2020 project Reference Section ID Ship Of Opportunity Program (SOOP) project Research Projects EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Surface measurement Surface underway theme OCADS Study Type M/V Nuka Arctica SOOP VOS theme Provider Keywords EQ_PRE EQ_TMP SST_C fCO2_SW@SST theme Provider Variable Abbreviations CO2 ANALYZERS > CO2 ANALYZERS TEMPERATURE SENSORS > TEMPERATURE SENSORS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NUKA ARCTICA (call sign: OXYH2, ICES code: 26NA) platform ICES/SeaDataNet Ship Codes OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian North Atlantic Oceanean place Provider Geographic Names accessLevel: public otherRestrictions Cite as: Olsen, Are; Becker, Meike (2021). Partial pressure of carbon dioxide, temperature and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2020 (NCEI Accession 0234470). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0234470. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512–522. https://doi.org/10.1016/j.dsr2.2008.12.005 2009-04 publication International DOI Foundation (IDF) https://doi.org/10.1016/j.dsr2.2008.12.005 https://doi.org/10.1016/j.dsr2.2008.12.005 HTTPS https://doi.org/10.1016/j.dsr2.2008.12.005 related journal article information Pierrot, Denis author Neill, Craig author Sullivan, Kevin author Castle, Robert author Wanninkhof, Rik author Lüger, Heike author Johannessen, Truls author Olsen, Are author Feely, Richard A. author Cosca, Catherine E. author Elsevier BV publisher documentDigital Deep Sea Research Part II: Topical Studies in Oceanography 56(8-10) ISSN 0967-0645, pp. 512-522 crossReference project Olsen, A., Brown, K. R., Chierici, M., Johannessen, T., & Neill, C. (2008). Sea-surface CO2 fugacity in the subpolar North Atlantic. Biogeosciences, 5(2), 535–547. https://doi.org/10.5194/bg-5-535-2008 2008-04-10 publication International DOI Foundation (IDF) https://doi.org/10.5194/bg-5-535-2008 https://doi.org/10.5194/bg-5-535-2008 HTTPS https://doi.org/10.5194/bg-5-535-2008 related journal article information Olsen, A. author Brown, K. R. author Chierici, M. author Johannessen, T. author Neill, C. author Copernicus GmbH publisher documentDigital Biogeosciences 5(2) ISSN 1726-4189, pp. 535-547 crossReference project Wanninkhof, R., & Thoning, K. (1993). Measurement of fugacity of CO2 in surface water using continuous and discrete sampling methods. Marine Chemistry, 44(2–4), 189–204. https://doi.org/10.1016/0304-4203(93)90202-y 1993-12 publication International DOI Foundation (IDF) https://doi.org/10.1016/0304-4203(93)90202-y https://doi.org/10.1016/0304-4203(93)90202-y HTTPS https://doi.org/10.1016/0304-4203(93)90202-y related journal article information Wanninkhof, Rik author Thoning, Kirk author Elsevier BV publisher documentDigital Marine Chemistry 44(2-4) ISSN 0304-4203, pp. 189-204 crossReference project VOS Nuka Arctica Lines 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/nuka_arctica.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/nuka_arctica.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system 2022-04 publication https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans climatologyMeteorologyAtmosphere -54.5 11.4 57.8 69 2020-01-01 2020-04-15 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Originator data format 6.048 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0234470.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/0234470 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/234470 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/234470 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0179/0234470/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0234470 v1.1 was published. 2021-05-29T03:31:20Z NCEI Accession 0234470 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0234470/1.1 HTTPS NCEI Accession 0234470 v1.1 published 2021-05-29T03:31:20Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: fCO2_SW@SST; Unit: uatm; Observation type: Surface underway; Measured or calculated: Measured; Sampling instrument: Seawater pump; Location of seawater intake: Bow; Analyzing instrument: General Oceanics GO pCO2 system; Detailed sampling and analyzing information: Pierrot et al., Deep Sea Res. II, 56, 512-522 (2009), Olsen et al., Biogeosciences, 5, 535-547, (2008); Equilibrator type: two stage showerhead (main equilibrator with water-jacket); Equilibrator volume: approx 0.5 (vent equ) and 2 to 2.5 (main equ); Is the equilibrator vented or not: Vented; Water flow rate: approx 2 to 3.5 L/min; Gas flow rate: 0.08 L/min; How was temperature inside the equilibrator measured: Hart Scientific, Probe: 5610-9, thermometer:1524; Uncertainty of temperature measured inside the equilibrator: ±0.01; How was pressure inside the equilibrator measured: Setra 239 and Dps8100; Drying method for gas: Nafion and condenser; SEA CO2 gas detector manufacturer: Licor, Inc; SEA CO2 gas detector model: Licor 6262; SEA CO2 gas detector resolution: +/- 0.2 uatm; SEA CO2 gas detector uncertainty: +/- 1 uatm; Standard gas manufacturer: Traceable to the WMO-X93 scale. Calibrated against primary standards from NOAA/CMDL; Standard gas concentration: approx. 220, 400 and 450 ppm; At what temperature was pCO2 reported: In situ sea surface temperature; Uncertainty: 0.01C; Quality flag convention: WOCE quality control flags are used: 1 = good value, 4 = questionable value, 8 = bad value; Method reference: Wanninkhof and Thoning, Marine Chemistry 44, 189-205, 1993; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway; Sampling instrument: Intake temperature sensor, Hart Scientific; Analyzing instrument: Probe: 5610-9, thermometer:1524; Detailed sampling and analyzing information: Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations as well as checks against equilibrator thermometer; Uncertainty: ±0.01 °C; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research Parameter or Variable: Equilibrator Temperature; Abbreviation: EQ_TMP; Unit: Deg. C; Observation type: Surface Underway; Sampling instrument: Intake temperature sensor, Hart Scientific; Analyzing instrument: Probe: 5610-9, thermometer:1524; Detailed sampling and analyzing information: Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations and well as checks against intake thermometer.; Uncertainty: ±0.01 °C; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research Parameter or Variable: Equilibrator Pressure; Abbreviation: EQ_PRE; Unit: hPa; Sampling instrument: Equilibrator pressure, this is measured differentially using a Setra 239 sensor. The given equilibrator pressure is sum of this and the Licor cell pressure (recorded by 6262-03 Pressure Transducer); Uncertainty: 1. ±0.05 (Setra) and 2. ±0.45 (Licor), gives total ±0.453 hPa; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian carbon dioxide (CO2) gas analyzer carbon dioxide (CO2) gas analyzer measures gaseous carbon dioxide Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption. Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water. To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water. temperature sensor temperature sensor A sensor used to measure temperature. NUKA ARCTICA NUKA ARCTICA