gov.noaa.nodc:0310919 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 2026-07-28T13:46:58Z 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 (or fugacity) of carbon dioxide, salinity and water temperature collected from the sailing vessel HOLCIM during the Vendée Globe 2024 race in the Atlantic Ocean, Pacific Ocean, Indian Ocean from 2024-11-10 to 2025-01-25 (NCEI Accession 0310919) 2026-01-05 publication 2025-12-22 creation International DOI Foundation (IDF) 10.25921/h176-tz06 NOAA National Centers for Environmental Information gov.noaa.nodc:0310919 NCEI Archive Management System 0310919 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 Léa Olivier Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) lea.olivier@awi.de https://www.awi.de/ HTTPS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) website Institution web page information resourceProvider Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) https://www.awi.de/ HTTPS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) website Institution web page information resourceProvider Léa Olivier Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) lea.olivier@awi.de https://www.awi.de/ HTTPS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) website Institution web page information principalInvestigator Peter Landschützer Flanders Institute for Marine Science (VLIZ) peter.landschuetzer@mpimet.mpg.de principalInvestigator Olivier, Léa Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research https://www.awi.de/ HTTPS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) website Institution web page information author Landschützer, Peter Flanders Institute for Marine Science (VLIZ) author Flanders Marine Institute (VLIZ) http://www.vliz.be HTTP Flanders Marine Institute (VLIZ) website Institution web page information contributor Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) https://www.awi.de/ HTTPS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) website Institution web page information contributor tableDigital This dataset includes data collected from the race sailing vessel HOLCIM during the Vendée Globe 2024 race. A flow-through membrane pCO2 sensor is integrated with the SubCTech Ocean pack. The vessel sailed around the world, from and back to Les Sables D'Olonnes (France), sampling in the Atlantic Ocean, Indian Ocean and Pacific Ocean. The most recent calibration of this sensor occurred before the race, in fall 2024. The system is composed of only one temperature sensor, and SST and membrane temperature are assumed to be the same (even if this hypothesis could be flawed, and should be improved in the future). This system is equipped with three pressure sensor, one measuring atmospheric pressure, one measuring the differential pressure between the membrane and the LICOR, and the LICOR pressure. To estimate the pressure of the measurement we added the differential pressure and the LICOR pressure. Since the system is not vented, it is not at atmospheric pressure, and the readings of the pressure are therefore not following the atmospheric pressure variations but more the cycles of the system. We acknowledge that the salinity is noisy, we did not do any processing or filtering to remove the noise. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: GO-CIRCULAR 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:0310919 Preview graphic PNG 0310919 NCEI ACCESSION NUMBER 2025-12-19 publication BAROMETRIC PRESSURE partial pressure of carbon dioxide - water SALINITY - SURFACE WATER WATER TEMPERATURE xCO2 seawater theme NODC DATA TYPES THESAURUS barometric pressure sensor carbon dioxide (CO2) gas analyzer salinometer temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS UNKNOWN PLATFORMS OF GERMANY platform NODC PLATFORM NAMES THESAURUS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research Flanders Marine Institute dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Alfred-Wegener Institute, Helmholtz Centre for Polar and Marine Research dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Indian Ocean North Atlantic Ocean South Atlantic Ocean South Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication AWI > Alfred Wegener Institute for Polar and Marine Research BE/VLIZ > Flanders Marine Institute, Belgium 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 Vendée Globe 2024 project Cruise ID CH9920241110 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords SOOP project Reference Section ID Ship Of Opportunity Program (SOOP) project Research Projects 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 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 underway theme OCADS Study Type Patm SSS SST_C xCO2 theme Provider Variable Abbreviations BAROMETERS > BAROMETERS CO2 ANALYZERS > CO2 ANALYZERS SALINOMETERS 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 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN OCEAN > INDIAN OCEAN OCEAN > PACIFIC OCEAN > SOUTH PACIFIC 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 Indian Ocean North Atlantic Ocean South Atlantic Ocean South Pacific Ocean place Provider Geographic Names accessLevel: public otherRestrictions Cite as: Olivier, Léa; Landschützer, Peter (2026). Surface underway measurements of partial pressure (or fugacity) of carbon dioxide, salinity and water temperature collected from the sailing vessel HOLCIM during the Vendée Globe 2024 race in the Atlantic Ocean, Pacific Ocean, Indian Ocean from 2024-11-10 to 2025-01-25 (NCEI Accession 0310919). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/h176-tz06. Accessed [date]. 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Ships Of Opportunity Program (SOOP) Data 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/ HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/ 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 -179.99 179.99 -58.37 46.57 2024-11-10 2025-01-25 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 13.332 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0310919.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/h176-tz06 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/310919 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/310919 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0240/0310919/ 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 0310919 v1.1 was published. 2026-01-05T19:48:29Z NCEI Accession 0310919 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0310919/1.1 HTTPS NCEI Accession 0310919 v1.1 published 2026-01-05T19:48:29Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: xCO2; Unit: ppm; Observation type: Surface underway; Measured or calculated: Measured; Calculation method and parameters: Takahashi et al., (1993) and DOE handbook; Sampling instrument: water collection with pump; Depth of seawater intake: 1.5 m; Analyzing instrument: SubCtech OceanPack System; Detailed sampling and analyzing information: We follow the methods described in, Pierrot, D. et al. Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography 56, 512–522 (2009), adapting to fit a membrane sensor. It is also described in Landschützer, P., Tanhua, T., Behncke, J. & Keppler, L. Sailing through the southern seas of air–sea CO2 flux uncertainty. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 381, 20220064 (2023).; Equilibrator type: Flat Membrane (PDMS); Equilibrator volume: N/A; Is the equilibrator vented or not: no; Water flow rate: 7 L/min; Gas flow rate: N/A; How was temperature inside the equilibrator measured: Sea&Sun customized CTD48; SEA CO2 gas detector manufacturer: Licor, Inc; SEA CO2 gas detector model: LI850. Serial: HGA-7148; SEA CO2 gas detector resolution: better than 1% of reading; SEA CO2 gas detector uncertainty: better than 1% of reading, zero drift <0.15 ppm/°C, span drift<0.03 %/°C Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway; Sampling instrument: water collection with pump; Analyzing instrument: Sea & Sun CTD48 Parameter or Variable: Sea Surface Salinity; Abbreviation: SSS; Observation type: Surface Underway; Sampling instrument: water collection with pump; Analyzing instrument: Sea & Sun CTD48 Parameter or Variable: Atmospheric pressure; Abbreviation: Patm; Unit: hPa; Observation type: Underway 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 temperature sensor temperature sensor A sensor used to measure temperature. UNKNOWN PLATFORMS OF GERMANY UNKNOWN PLATFORMS OF GERMANY