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    • Partial pressure (or fugacity) of carbon dioxide, salinity, oxygen and other variables collected from time series observations from Mooring Maria_Island_42S_148E deployed in the Tasman Sea, Pacific Ocean (NCEI Accession 0165305)

    Metadata Updated: March 1, 2025

    This dataset includes chemical, meteorological, physical time series data collected from Mooring Maria_Island_42S_148E deployed in the Tasman Sea, Pacific Ocean from 2011-04-20 to 2024-04-15. 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, sea surface salinity and concentration O2 in surface sea water. 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.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date 2025-02-21T12:49:35Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date March 1, 2025
    Reference Date(s) August 31, 2017 (publication), January 31, 2025 (revision)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-02-21T12:49:35Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date March 1, 2025
    Reference Date(s) August 31, 2017 (publication), January 31, 2025 (revision)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0165305
    Access Constraints Cite as: Tilbrook, Bronte; Neill, Craig; van Ooijen, Erik; Passmore, Abe; Black, James (2017). Partial pressure (or fugacity) of carbon dioxide, salinity, oxygen and other variables collected from time series observations from Mooring Maria_Island_42S_148E deployed in the Tasman Sea, Pacific Ocean (NCEI Accession 0165305). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5bv7dt6. Accessed [date]., 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.
    Bbox East Long 148.2375
    Bbox North Lat -42.5962
    Bbox South Lat -42.5962
    Bbox West Long 148.2375
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0165305
    Graphic Preview Type PNG
    Harvest Object Id 363610e8-2fb3-42cf-9bcc-c80b1d6f91a4
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Point", "coordinates": [148.2375, -42.5962]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2011-04-20
    Temporal Extent End 2024-04-15

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