Skip to main content
U.S. flag

An official website of the United States government

Partial pressure (or fugacity) of carbon dioxide, water temperature, salinity and other variables collected from time series observations from Mooring Kangaroo_Island_35S_136E deployed in the South Australian Basin near Kangaroo_Island (NCEI Accession 0253461)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:08 AM | Dataset Last Updated: January 15, 2026 at 12:00 AM
This dataset includes chemical, meteorological, physical time series data collected from Mooring Kangaroo_Island_35S_136E deployed in the South Australian Basin near Kangaroo_Island, from 2012-02-08 to 2025-05-26. These data include mole fraction of CO2 in the equilibrator head space, mole fraction of CO2 in the atmosphere, fugacity of carbon dioxide at surface water, corrected for water vapour at surface water salinity and temperature, delta fCO2 = (fCO2_WET_SW - fCO2_WET_AIR), atmospheric pressure, equilibrator pressure, sea surface temperature, equilibrator temperature and sea surface salinity. Measurements in the dataset are made with a Battelle Seaology pCO2 monitoring system (MApCO2), a Seabird SBE16plusV2 CTD, mounted on a surface buoy similar to the system described in Sutton et al. (2014), with an Aanderaa optode used to measure dissolved oxygen concentrations. The seawater sensor intakes for the MapCO2, SBE16Plus V2 and the optode are located at about 1m water depth. The CO2 measurement uses a bubble equilibrator (Sutton et al., 2014), where the air from the equilibrator headspace is circulated through a LI-COR 820 non-dispersive infrared detector (NDIR) for measurement of CO2. The system carries out an automated measurement sequence every 2 or 3 hours, depending on the instrumentation setup. At the beginning of each measurement sequence, the NDIR undergoes a two point calibration with a zero CO2 gas and a high CO2 standard span gas (typically 450-550 micromol/mol), which bracket the range of CO2 mole fractions in seawater and air. The zero CO2 gas is generated by cycling air through a soda lime chamber and silica gel to remove CO2 and water vapour, respectively. The CO2 span gas is prepared by the NOAA Earth Systems Research Laboratory in the USA and calibrated on the WMO X2007 scale with a standard deviation of 0.06 micromol/mol. Each measurement cycle of zero and span gas, equilibrator headspace, and air takes 20 minutes with the equilibrator headspace measurement occurring at about 17 minutes followed by the air measurement. The pressure measurements are considered the same for the equilibrator headspace gas and air measurements due to the design of the MapCO2 system (Sutton et al., 2014) as are the temperature and salinity of the surface seawater and the equilibrator measured by the Seabird SBE16PlusV2.

Resources

11 resources available

  • Project Metadata

    TEXT/HTML
    Visit Page

  • NCEI Dataset Landing Page

    TEXT/HTML
    Visit Page

  • Descriptive Information

    TEXT/HTML
    Visit Page

  • HTTPS

    TEXT/HTML
    Visit Page

  • FTP

    TEXT/HTML
    Visit Page

  • https://doi.org/10.5194/essd-6-353-2014

    TEXT/HTML
    Visit Page

  • https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Heron_Island.html

    TEXT/HTML
    Visit Page

  • https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system

    TEXT/HTML
    Visit Page

  • https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html

    TEXT/HTML
    Visit Page

  • GCMD Keyword Forum Page

    TEXT/HTML
    Visit Page

  • NCEI Contact Information

    TEXT/HTML
    Visit Page

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

0253461 Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water SALINITY - SURFACE WATER WATER TEMPERATURE xCO2 atmosphere xCO2 seawater bubble type equilibrator for autonomous carbon dioxide (CO2) measurement

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.info@noaa.gov"
}
describedByType application/octet-steam
description This dataset includes chemical, meteorological, physical time series data collected from Mooring Kangaroo_Island_35S_136E deployed in the South Australian Basin near Kangaroo_Island, from 2012-02-08 to 2025-05-26. These data include mole fraction of CO2 in the equilibrator head space, mole fraction of CO2 in the atmosphere, fugacity of carbon dioxide at surface water, corrected for water vapour at surface water salinity and temperature, delta fCO2 = (fCO2_WET_SW - fCO2_WET_AIR), atmospheric pressure, equilibrator pressure, sea surface temperature, equilibrator temperature and sea surface salinity. Measurements in the dataset are made with a Battelle Seaology pCO2 monitoring system (MApCO2), a Seabird SBE16plusV2 CTD, mounted on a surface buoy similar to the system described in Sutton et al. (2014), with an Aanderaa optode used to measure dissolved oxygen concentrations. The seawater sensor intakes for the MapCO2, SBE16Plus V2 and the optode are located at about 1m water depth. The CO2 measurement uses a bubble equilibrator (Sutton et al., 2014), where the air from the equilibrator headspace is circulated through a LI-COR 820 non-dispersive infrared detector (NDIR) for measurement of CO2. The system carries out an automated measurement sequence every 2 or 3 hours, depending on the instrumentation setup. At the beginning of each measurement sequence, the NDIR undergoes a two point calibration with a zero CO2 gas and a high CO2 standard span gas (typically 450-550 micromol/mol), which bracket the range of CO2 mole fractions in seawater and air. The zero CO2 gas is generated by cycling air through a soda lime chamber and silica gel to remove CO2 and water vapour, respectively. The CO2 span gas is prepared by the NOAA Earth Systems Research Laboratory in the USA and calibrated on the WMO X2007 scale with a standard deviation of 0.06 micromol/mol. Each measurement cycle of zero and span gas, equilibrator headspace, and air takes 20 minutes with the equilibrator headspace measurement occurring at about 17 minutes followed by the air measurement. The pressure measurements are considered the same for the equilibrator headspace gas and air measurements due to the design of the MapCO2 system (Sutton et al., 2014) as are the temperature and salinity of the surface seawater and the equilibrator measured by the Seabird SBE16PlusV2.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Project Metadata",
    "accessURL": "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0253461.html",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Dataset Landing Page",
    "accessURL": "https://doi.org/10.25921/c2ry-gk21",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Descriptive Information",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/oas/253461",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for a descriptive web page with download links.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "HTTPS",
    "accessURL": "https://www.ncei.noaa.gov/archive/accession/download/253461",
    "mediaType": "text/html",
    "description": "Navigate directly to the URL for data access and direct download.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "FTP",
    "accessURL": "ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0201/0253461/",
    "mediaType": "text/html",
    "description": "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).",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://doi.org/10.5194/essd-6-353-2014",
    "accessURL": "https://doi.org/10.5194/essd-6-353-2014",
    "mediaType": "text/html",
    "description": "related journal article",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Heron_Island.html",
    "accessURL": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Heron_Island.html",
    "mediaType": "text/html",
    "description": "Related resource",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
    "accessURL": "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
    "mediaType": "text/html",
    "description": "OCADS website",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html",
    "accessURL": "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html",
    "mediaType": "text/html",
    "description": "Related resource",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "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",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Contact Information",
    "accessURL": "https://www.ncei.noaa.gov/contact",
    "mediaType": "text/html",
    "description": "Information for contacts at NCEI.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0253461.xml
issued 2022-05-11T00:00:00.000+00:00
keyword 
[
  "0253461",
  "Partial pressure (or fugacity) of carbon dioxide - atmosphere",
  "partial pressure of carbon dioxide - water",
  "SALINITY - SURFACE WATER",
  "WATER TEMPERATURE",
  "xCO2 atmosphere",
  "xCO2 seawater",
  "bubble type equilibrator for autonomous carbon dioxide (CO2) measurement",
  "carbon dioxide (CO2) gas analyzer",
  "salinometer",
  "temperature sensor",
  "chemical",
  "meteorological",
  "physical",
  "surface measurements",
  "time series",
  "FIXED STATIONS OF AUSTRALIA",
  "Commonwealth Scientific and Industrial Research Organization",
  "Commonwealth Scientific and Industrial Research Organization",
  "Surface Ocean CO2 Atlas (SOCAT)",
  "Great Australian Bight",
  "Indian Ocean",
  "oceanography",
  "Mooring_Kangaroo_Island_35S_136E",
  "09FS20120208",
  "09FS20160817",
  "09FS20161129",
  "09FS20181119",
  "09FS20190506",
  "09FS20191118",
  "09FS20201114",
  "09FS20210601",
  "09FS20211117",
  "09FS20220509",
  "09FS20230219",
  "09FS20231018",
  "09FS20240422",
  "09FS20250226",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "Moorings and Time Series",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE",
  "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",
  "Surface measurement",
  "Time series",
  "Mooring Kangaroo_Island_35S_136E",
  "Moorings and Time Series",
  "ATMOSPHERIC PRESSURE",
  "DfCO2",
  "EQUILIBRATOR PRESSURE",
  "EQUILIBRATOR TEMPERATURE",
  "SALINITY",
  "SEA SURFACE TEMPERATURE",
  "XCO2_DRY_AIR",
  "XCO2_DRY_SW",
  "fCO2_WET_SW",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "EQUILIBRATORS",
  "SALINOMETERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS",
  "OCEAN > INDIAN OCEAN",
  "Indian Ocean",
  "South Australian Basin"
]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-01-15T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://doi.org/10.5194/essd-6-353-2014",
  "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Heron_Island.html",
  "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system",
  "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html"
]
rights otherRestrictions
spatial 136.4379,-35.8417,136.4379,-35.8417
temporal 2012-02-08T00:00:00+00:00/2025-05-26T00:00:00+00:00
theme 
[
  "geospatial"
]
title Partial pressure (or fugacity) of carbon dioxide, water temperature, salinity and other variables collected from time series observations from Mooring Kangaroo_Island_35S_136E deployed in the South Australian Basin near Kangaroo_Island (NCEI Accession 0253461)

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov