gov.noaa.nodc:0315102 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 2026-05-22T13:18:58Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Partial pressure (or fugacity) of carbon dioxide, water temperature, salinity and other variables collected from surface underway observations during the SA Agulhas II cruise in the South Atlantic Ocean, Indian Ocean from 2025-04-18 to 2025-05-13 (NCEI Accession 0315102) 2026-05-21 publication 2026-05-19 creation International DOI Foundation (IDF) 10.25921/2yd3-vv23 NOAA National Centers for Environmental Information gov.noaa.nodc:0315102 NCEI Archive Management System 0315102 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 Siyabulela Hamnca shamnca@csir.co.za resourceProvider South Africa Department of Forestry, Fisheries and the Environment (DFFE) https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information resourceProvider Siyabulela Hamnca Southern Ocean Carbon and Climate Observatory, Council for Scientific and Industrial Research shamnca@csir.co.za principalInvestigator Mutshutshu Tsanwani South Africa Department of Forestry, Fisheries and the Environment (DFFE) mtsanwani@dffe.gov.za https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information principalInvestigator Baxolele Mdokwana South Africa Department of Forestry, Fisheries and the Environment (DFFE) https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information principalInvestigator Hamnca, Siyabulela Southern Ocean Carbon and Climate Observatory, Council for Scientific and Industrial Research shamnca@csir.co.za author Tsanwani, Mutshutshu South Africa Department of Forestry, Fisheries and the Environment (DFFE) https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information author Mdokwana, Baxolele South Africa Department of Forestry, Fisheries and the Environment (DFFE) https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information author South Africa Department of Forestry, Fisheries and the Environment (DFFE) https://www.dffe.gov.za/ HTTPS South Africa Department of Forestry, Fisheries and the Environment (DFFE) website Institution web page information contributor tableDigital This dataset includes surface underway, chemical, meteorological and physical data collected from SA Agulhas II cruise in the South Atlantic Ocean, Indian Ocean from 2025-04-18 to 2025-05-13. These data include Partial pressure (or fugacity) of carbon dioxide - atmosphere, Partial pressure (or fugacity) of carbon dioxide - water water temperature, salinity and barometric pressure. The Goodhope line between Cape Town, South and SANAE in Antarctica has been continuous sampled every summer (Dec-Feb) since 2008 from the SA Agulhas I (from 2008 to 2011) and SA Agulhas II since 2012. The purpose is to contribute to the global SOCAT quality controlled and gridded dataset is then used for the reconstructions of the CO2 flux in the Southern Ocean. This will continue at least annually in summer, occasional winter and spring lines. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: Council for Scientific and Industrial Research, South Africa 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:0315102 Preview graphic PNG 0315102 NCEI ACCESSION NUMBER 2026-05-13 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 temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological physical surface underway theme NODC OBSERVATION TYPES THESAURUS S. A. AGULHAS platform NODC PLATFORM NAMES THESAURUS South Africa Department of Forestry, Fisheries and the Environment dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS South Africa Department of Forestry, Fisheries and the Environment dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Ship of Opportunity Programme (SOOP) Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Indian Ocean South Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication SOOP project Cruise ID 91AA20250418 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 Pres_atm_hpa SST Salinity (PSU) fCO2 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 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 Ships platform Global Change Master Directory (GCMD) Platform 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 S. A. AGULHAS (call sign: ZSAF, ICES code: 91AA, 1978-2012) platform ICES/SeaDataNet Ship Codes OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN OCEAN > INDIAN 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: Hamnca, Siyabulela; Tsanwani, Mutshutshu; Mdokwana, Baxolele (2026). Partial pressure (or fugacity) of carbon dioxide, water temperature, salinity and other variables collected from surface underway observations during the SA Agulhas II cruise in the South Atlantic Ocean, Indian Ocean from 2025-04-18 to 2025-05-13 (NCEI Accession 0315102). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/2yd3-vv23. 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. license This dataset is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) License. SPDX License: Creative Commons Attribution 4.0 International (CC-BY-4.0) S/A Agulhas Cruises 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/Agulhas.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/VOS_Program/Agulhas.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project 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 18.713 40 -47.137 -34.936673 2025-04-18 2025-05-13 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 3.684 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0315102.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/2yd3-vv23 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/315102 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/315102 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0244/0315102/ 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 0315102 v1.1 was published. 2026-05-21T15:37:46Z NCEI Accession 0315102 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0315102/1.1 HTTPS NCEI Accession 0315102 v1.1 published 2026-05-21T15:37:46Z download dataset Parameter or Variable: fugacity of carbon dioxide; Abbreviation: fCO2; Unit: μatm; Controlled vocabulary name: fugacity of carbon dioxide; Observation type: surface underway; In-situ / Manipulation / Response variable: in-situ observation; Sampling instrument: water collection with pump; Analyzing instrument: General Oceanics GO pCO2 system Parameter or Variable: Sea Surface Temperature; Abbreviation: SST; Unit: Deg. Cesius; Controlled vocabulary name: Sea Surface Temperature; Observation type: surface underway; In-situ / Manipulation / Response variable: in-situ observation; Sampling instrument: water collection with pump; Analyzing instrument: Seabird sensors Parameter or Variable: Sea Surface Salinity; Abbreviation: Salinity (PSU); Controlled vocabulary name: Sea Surface Salinity; Observation type: surface underway; In-situ / Manipulation / Response variable: in-situ observation; Sampling instrument: water collection with pump; Analyzing instrument: Seabird sensors Parameter or Variable: Pres_atm_hpa; Abbreviation: Pres_atm_hpa; In-situ / Manipulation / Response variable: in-situ observation 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. S. A. AGULHAS Updated information from ICES for the vessel S. A. AGULHAS from SOUTH AFRICA. Name : S. A. AGULHAS Flag : SOUTH AFRICA - ZA (ISO Country Code) Call Sign : ZSAF Platform Class : 31 Research vessel IMO : 7628136 Commissioned Date : 1978 Decommissioned Date : 2012-04 Current Length : 111.5 Built : 1978 Notes : Ice-strengthened vessel used for research and to service the South African Antarctic bases. Replaced by S. A. Agulhas II in 2012 and transferred to South African Maritime Safety Authority as a training ship. MMSI 601048000 Additional Information Sources: - http://en.wikipedia.org/wiki/S._A._Agulhas - http://new.marinetraffic.com/en/ais/details/ships/601048000 General Comments: Decommissioned flag has been set since platform class will change due to purpose change from research vessel to training vessel. From http://en.wikipedia.org/wiki/S._A._Agulhas : "In July 2012 the S. A. Agulhas was recommissioned as a training ship operated by the South African Maritime Safety Authority, the ship will continue to provide facilities for scientific research while training up to seventy merchant marine cadets."