gov.noaa.nodc:0253467 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 2026-04-20T13:09:32Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Surface underway partial pressure of carbon dioxide (pCO2), sea surface salinity, water temperature and barometric pressure data measured on board the R/V Kaiyo-Maru during the Fisheries Research Agency (FRA) cruise 49KD20181212 in the Southern Ocean from 2018-12-12 to 2019-02-24 (NCEI Accession 0253467) 2022-05-13 publication 2022-05-12 creation International DOI Foundation (IDF) 10.25921/kgt8-6523 NOAA National Centers for Environmental Information gov.noaa.nodc:0253467 NCEI Archive Management System 0253467 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 Daiki Nomura Hokkaido University http://www.hokudai.ac.jp/en/ HTTP Hokkaido University website Institution web page information principalInvestigator Manami Tozawa Hokkaido University http://www.hokudai.ac.jp/en/ HTTP Hokkaido University website Institution web page information principalInvestigator Shin-Ichiro Nakaoka National Institute for Environmental Studies (NIES) nakaoka.shinichiro@nies.go.jp principalInvestigator Nomura, Daiki Hokkaido University http://www.hokudai.ac.jp/en/ HTTP Hokkaido University website Institution web page information author Tozawa, Manami Hokkaido University http://www.hokudai.ac.jp/en/ HTTP Hokkaido University website Institution web page information author Nakaoka, Shin-ichiro National Institute for Environmental Studies (NIES) author Hokkaido University http://www.hokudai.ac.jp/en/ HTTP Hokkaido University website Institution web page information contributor National Institute for Environmental Studies (NIES) contributor tableDigital This dataset includes surface underway data collected from the R/V Kaiyo-Maru during the Fisheries Research Agency (FRA) cruise 49KD20181212 in the Southern Ocean from 2018-12-12 to 2019-02-24. These data include partial pressure of carbon dioxide (CO2) - atmosphere, partial pressure of CO2 - water, sea surface salinity, sea surface temperature and barometric pressure. The instruments used to collect these data include CO2 gas analyzer, shower head chamber equilibrator for autonomous CO2 measurement. The major objectives of the measurements is to provide a high quality measurements of atmospheric and sea surface pCO2, sea surface salinity, temperature, and other parameters in the coastal area near Japan. Funding Information: Ministry of Education, Culture, Sports, Science and Technology, Japan., Fisheries Agency, Japan., Japan Fisheries Research and Education Agency, Japan 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:0253467 Preview graphic PNG 0253467 NCEI ACCESSION NUMBER 2022-04-23 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 KAIYO-MARU NO 6 platform NODC PLATFORM NAMES THESAURUS Hokkaido University National Institute for Environmental Studies dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Pacific Marine Environmental Laboratory dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS GULF OF MEXICO NOAA/NMFS SHIP OF OPPORTUNITY (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Indian Ocean Southern 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 JP/NIES > National Institute for Environmental Studies, Japan 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 WK2106B project Cruise ID 49KD20181212 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 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 R/V Kaiyo-Maru SOOP VOS theme Provider Keywords AtmPrs SSS SST_C xCO2eq 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 KAIYO-MARU NO 6 (ICES code: 49KD) platform ICES/SeaDataNet Ship Codes OCEAN > INDIAN OCEAN OCEAN > SOUTHERN 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 Indian Ocean Southern Ocean place Provider Geographic Names accessLevel: Public otherRestrictions Cite as: Nomura, Daiki; Tozawa, Manami; Nakaoka, Shin-ichiro (2022). Surface underway partial pressure of carbon dioxide (pCO2), sea surface salinity, water temperature and barometric pressure data measured on board the R/V Kaiyo-Maru during the Fisheries Research Agency (FRA) cruise 49KD20181212 in the Southern Ocean from 2018-12-12 to 2019-02-24 (NCEI Accession 0253467). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/kgt8-6523. 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. Saito, H., Tamura, N., Kitano, H., Mito, A., Takahashi, C., Suzuki, A., & Kayanne, H. (1995). A compact seawater pCO2 measurement system with membrane equilibrator and nondispersive infrared gas analyzer. Deep Sea Research Part I: Oceanographic Research Papers, 42(11–12), 2025–2033. https://doi.org/10.1016/0967-0637(95)00090-9 1995-11 publication International DOI Foundation (IDF) https://doi.org/10.1016/0967-0637(95)00090-9 https://doi.org/10.1016/0967-0637(95)00090-9 HTTPS https://doi.org/10.1016/0967-0637(95)00090-9 related journal article information Saito, Hiroshi author Tamura, Nobuya author Kitano, Hiroshi author Mito, Akihiro author Takahashi, Chiharu author Suzuki, Atsushi author Kayanne, Hajime author Elsevier BV publisher documentDigital Deep Sea Research Part I: Oceanographic Research Papers 42(11-12) ISSN 0967-0637, pp. 2025-2033 crossReference project Fisheries Research Agency (FRA) Near Japan Sections 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/FRA.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/FRA.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 79.937 150.5 -66.8 -60 2018-12-12 2019-02-24 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 9.092 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0253467.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/kgt8-6523 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/253467 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/253467 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0201/0253467/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). 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You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0253467 v1.1 was published. 2022-05-13T21:35:37Z NCEI Accession 0253467 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0253467/1.1 HTTPS NCEI Accession 0253467 v1.1 published 2022-05-13T21:35:37Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: xCO2eq; Unit: uatm; Observation type: Surface underway; Measured or calculated: Measured; Sampling instrument: Seawater pump; Location of seawater intake: Bottom of ship; Analyzing instrument: Infra-red analysis on dry gas NDIR; Detailed sampling and analyzing information: Infrared analysis of headspace in equilibrium with flowing seawater; Equilibrator type: membrane equilibrator Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway Parameter or Variable: Sea Surface Salinity; Abbreviation: SSS; Observation type: Surface Underway Parameter or Variable: Atmospheric pressure at sea-surface pressure; Abbreviation: AtmPrs; Unit: hPa; Observation type: Surface 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 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. KAIYO-MARU NO 6 KAIYO-MARU NO 6