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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)

Metadata Updated: December 1, 2023

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 2022-05-09. 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.

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 2023-08-30T13:17:39Z
Metadata Created Date March 19, 2023
Metadata Updated Date December 1, 2023
Reference Date(s) May 13, 2022 (publication), April 21, 2023 (revision)
Frequency Of Update asNeeded

Metadata Source

Harvested from NOAA/NESDIS/ncei/accessions

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Additional Metadata

Resource Type Dataset
Metadata Date 2023-08-30T13:17:39Z
Metadata Created Date March 19, 2023
Metadata Updated Date December 1, 2023
Reference Date(s) May 13, 2022 (publication), April 21, 2023 (revision)
Responsible Party (Point of Contact)
Contact Email
Guid gov.noaa.nodc:0253461
Access Constraints Cite as: Tilbrook, Bronte; Neill, Craig; van Ooijen, Erik; Passmore, Abe; Black, James (2022). 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). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/c2ry-gk21. 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 136.4379
Bbox North Lat -35.8417
Bbox South Lat -35.8417
Bbox West Long 136.4379
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:0253461
Graphic Preview Type PNG
Harvest Object Id 6afd1cf7-61cf-4c0a-972f-69d9dbc5f3f4
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": [136.4379, -35.8417]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2012-02-08
Temporal Extent End 2022-05-09

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