gov.noaa.nodc:0246952 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 2026-03-26T08:06:38Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Surface underway measurements of partial pressure of CO2 (pCO2), sea surface temperature, sea surface salinity and barometric pressure collected during the M/V Atlantic Sail Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean in 2021 (NCEI Accession 0246952) 2022-02-03 publication 2023-04-28 revision 2022-01-31 creation International DOI Foundation (IDF) 10.25921/66v0-bs62 NOAA National Centers for Environmental Information gov.noaa.nodc:0246952 NCEI Archive Management System 0246952 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 Tobias Steinhoff GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) tsteinhoff@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information resourceProvider 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 resourceProvider Tobias Steinhoff GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) tsteinhoff@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information principalInvestigator Arne Körtzinger GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) akoertzinger@geomar.de http://www.geomar.de/ HTTP GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR) website Institution web page information principalInvestigator Steinhoff, Tobias 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 Körtzinger, Arne 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 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 contributor tableDigital This dataset includes surface underway, chemical, meteorological and physical data collected during the M/V Atlantic Sail Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean from 2021-03-03 to 2021-11-09. These data include partial pressure (or fugacity) of carbon dioxide - atmosphere, partial pressure (or fugacity) of carbon dioxide - water, sea surface salinity, sea surface temperature and barometric pressure. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer. GEOMAR operates surface ocean pCO2 measurements in the sub-polar North Atlantic since 2002 on different ships of opportunities (SOOP lines). The measurements are now embedded in the frame work of the European infrastructure "Integrated Carbon Observation System (ICOS)" This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: BMBF (German component of the Integrated Carbon Observing System (ICOS-D), 01LK1224J) 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 NCEI Accession 0246952 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made. https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0246952 Preview graphic PNG 0246952 NCEI ACCESSION NUMBER 2022-01-14 publication BAROMETRIC PRESSURE Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water SALINITY - SURFACE WATER WATER TEMPERATURE theme NODC DATA TYPES THESAURUS barometric pressure sensor carbon dioxide (CO2) gas analyzer salinometer showerhead equilibrator temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS UNKNOWN PLATFORMS OF SWEDEN platform NODC PLATFORM NAMES THESAURUS GEOMAR Helmholtz Centre for Ocean Research Kiel dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS GEOMAR Helmholtz Centre for Ocean Research Kiel dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Celtic Sea North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DE/GEOMAR > GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 23 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 ATS5921 ATS6321 ATS6521 ATS6721 ATS6921 ATS7021 ATS7121 ATS7321 project Cruise ID 74WX20210303 74WX20210514 74WX20210617 74WX20210722 74WX20210828 74WX20210913 74WX20211003 74WX20211103 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords SOOP project Reference Section ID EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 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 underway theme OCADS Study Type M/V Atlantic Sail SOOP VOS theme Provider Keywords Atm. Pressure [mbar] Atm. xCO2 (dry) Equi Press [mbar] Equi Temp [deg C] SSS SST [deg C] fCO2 (SST, 100hum) [uatm] pCO2 (SST, 100hum) xCO2 (equi temp, dry) [ppm] theme Provider Variable Abbreviations BAROMETERS > BAROMETERS CO2 ANALYZERS > CO2 ANALYZERS EQUILIBRATORS SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 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 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 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 Celtic Sea North Atlantic Ocean place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Steinhoff, Tobias; Körtzinger, Arne (2022). Surface underway measurements of partial pressure of CO2 (pCO2), sea surface temperature, sea surface salinity and barometric pressure collected during the M/V Atlantic Sail Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean in 2021 (NCEI Accession 0246952). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/66v0-bs62. 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 M/V Atlantic Companion and M/V Atlantic Cartier Lines 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/a_companion.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/a_companion.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 -64 -2 44.5 58 2021-03-03 2021-11-09 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 5.416 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0246952.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/66v0-bs62 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/246952 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/246952 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0154/0246952/ 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 0246952 v1.1 was published. 2022-02-03T22:04:13Z NCEI Accession 0246952 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0246952/1.1 HTTPS NCEI Accession 0246952 v1.1 published 2022-02-03T22:04:13Z download NCEI Accession 0246952 was revised and v2.2 was published. Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. 2023-04-28T18:38:34Z NCEI Accession 0246952 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0246952/2.2 HTTPS NCEI Accession 0246952 v2.2 published 2023-04-28T18:38:34Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: pCO2 (SST, 100hum); Unit: μatm; Observation type: underway; Location of seawater intake: aft; Analyzing instrument: General Oceanics GO pCO2 system; Detailed sampling and analyzing information: water collection with pump SOP05, Dickson, A.G., Sabine, C. L. and Christian, J.R. (2007). Guide to best Practices for Ocean CO2 measurements; Pierrot, D. et al. (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines NaN; Equilibrator type: spray head; Equilibrator volume: 1; Is the equilibrator vented or not: Vented; Water flow rate: 2.5; Gas flow rate: 0.1; How was temperature inside the equilibrator measured: Equilibrator temperature is measured by a Fluke Hart 1523, wich is known to be stable over a longer period. It was calibrated in May 2021.; How was pressure inside the equilibrator measured: The equilibrator is open to the atmosphere. Since no absolute pressure sensor was installed the pressure from the atmospheric pressure sensor was used. A SETRA difference pressure sensor is attached to the equilibrator.; Drying method for gas: Peltier and Nafion dryer; SEA CO2 gas detector manufacturer: Licor; SEA CO2 gas detector model: 7000; SEA CO2 gas detector resolution: 0.01; SEA CO2 gas detector uncertainty: <0.2; Standardization technique: Regular use of 4 non-zero reference gases, daily zero/span; Standardization frequency: every 3 hours; Standard gas manufacturer: ICOS calibration lab; Standard gas concentration: 194.1, 315.30, 423.0, 500.03; Standard gas uncertainty: < 0.1; Water vapor correction method: The dried sample was corrected to 100% humidity which was calculated following Weiss and Price (1980). Nitrous Oxide solubility in water and seawater.; Temperature correction method: The temperature correction between equilibrator temperature and intake temperature was done following Takahashi et al. (1993). Seasonal variation of CO2 and nutrients in the high-latitude Surface Oceans: A comparative study.; At what temperature was pCO2 reported: intake temperature of seawater; Uncertainty: <3; Quality flag convention: NaN NaN; Method reference: SOP05, Dickson, A.G., Sabine, C. L. and Christian, J.R. (2007). Guide to best Practices for Ocean CO2 measurements; Pierrot, D. et al. (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines; QC steps: Yes Parameter or Variable: fCO2 (SST, 100hum) [uatm]; Abbreviation: fCO2 (SST, 100hum) [uatm]; Unit: fugacity of CO2 in seawater at SST and 100% humidity in µatm; In-situ / Manipulation / Response variable: in-situ observation Parameter or Variable: Equi Temp [deg C]; Abbreviation: Equi Temp [deg C]; Unit: Water temperature inside the equilibrator in deg C; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: Fluke Hart 1523; Uncertainty: 0.05C Parameter or Variable: Equi Press [mbar]; Abbreviation: Equi Press [mbar]; Unit: Pressureinside the equilibrator in mbar; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: SETRA (Model 239); Detailed sampling and analyzing information: The equilibrator is open to the atmosphere. A SETRA difference pressure sensor is attached to the equilibrator measuring the pressure difference between the in- and outside of teh equilibrator. A total pressure sensor (Druck) is installed next to the equilibrtaor and teh reported equ pressure is the sum of these pressures.; Uncertainty: 0.5 mBar Parameter or Variable: xCO2; Abbreviation: xCO2 (equi temp, dry) [ppm]; Unit: ppm; Controlled vocabulary name: dry mole fraction of CO2 in the equilibrator headspace at equilibrator temperature in ppm; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: LI7000; Uncertainty: 0.5 ppm Parameter or Variable: Atm. xCO2 (dry); Abbreviation: Atm. xCO2 (dry); Unit: ppm; Controlled vocabulary name: dry mole fraction of CO2 of atmospheric air in ppm; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: LI7000; Uncertainty: 0.5 ppm Parameter or Variable: Atm. xCO2 (dry); Abbreviation: Atm. xCO2 (dry); Unit: ppm; Controlled vocabulary name: dry mole fraction of CO2 of atmospheric air in ppm; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: LI7000; Uncertainty: 0.5 ppm Parameter or Variable: SST [deg C]; Abbreviation: SST [deg C]; Unit: Sea surface temperature in deg C; Controlled vocabulary name: SEA SURFACE TEMPERATURE; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: Seabird SBE21 and SBE38 manual; Uncertainty: 0.05C Parameter or Variable: SSS; Abbreviation: SSS; Unit: Sea Surface Salinity; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: Seabird SBE21 manual; Uncertainty: 0.1 Parameter or Variable: Atm. Pressure [mbar]; Abbreviation: Atm. Pressure [mbar]; Unit: Atmospheric pressure in mbar; Controlled vocabulary name: BAROMETRIC PRESSURE; In-situ / Manipulation / Response variable: in-situ observation; Analyzing instrument: The atm. Pressure is measured at approximately 35 m height and is corrected to sea surface.; Uncertainty: 0.2% asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian barometric pressure sensor barometric pressure sensor instrument used to measure the atmospheric pressure. 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. salinometer salinometer generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements showerhead equilibrator showerhead equilibrator extracts dissolved CO2 from water A carbon dioxide equilibrator is usually in the shape of a vertical tube, with a showerhead on the top, some headspace, a lot of beads to increase the surface exchange area between water and air, a water seal device at the bottom to allow water to overflow, but prevents air exchange between inside and outside. Carbon dioxide (CO2) equilibrator works together with carbon dioxide (CO2) gas analyzer (insttypes_id 183) 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. UNKNOWN PLATFORMS OF SWEDEN UNKNOWN PLATFORMS OF SWEDEN