Data

IMOS - SOOP Ocean Carbon Dioxide Data from RV Southern Surveyor voyage SS2012_V03 (Hobart-Hobart)

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CSIRO Oceans & Atmosphere - Hobart (Owned by)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://data.gov.au/dataset/7d295419-7823-4e0e-b561-9fe683eaa961&rft.title=IMOS - SOOP Ocean Carbon Dioxide Data from RV Southern Surveyor voyage SS2012_V03 (Hobart-Hobart)&rft.identifier=imos-soop-ocean-carbon-dioxide-data-from-rv-southern-surveyor-voyage-ss2012_v03-hobart-hobart&rft.publisher=data.gov.au&rft.description=Data available via the IMOS OPeNDAP server. - Website of the Australian Ocean Data Network (AODN) - This data was collected in July 2012 by the IMOS Ship of Opportunity Underway CO2 Measurement research group on RV Southern Surveyor (IMOS platform code: VLHJ) voyage SS2012_V03.\n\nDeparted: \tHobart, TAS, July 11, 2012\nArrived: \tHobart, TAS, July 24, 2012\n\nCO2 System Overview:\nThe fugacity of carbon dioxide (fCO2) in surface seawater was measured using a General Oceanics Inc. automated system (Model 8050; Pierrot et al 2009). Seawater is sprayed into an equilibration chamber and CO2 in the headspace gas equilibrates with the seawater. The headspace gas is pumped through a thermoelectric condenser followed by a nafion drying tube before flowing through a Licor 7000 non-dispersive infrared gas analyser used to measure the CO2 mole fraction (XCO2) of the dried air. The gas flow is stopped temporarily for the CO2 measurements, which are made at atmospheric pressure. A set of four CO2 standards that cover the range of CO2 values expected in the ocean are analysed about every four hours to calibrate the gas analyser. The standard gas concentrations are on the WMO-X2007 mole fraction scale for CO2-in-air. Atmospheric XCO2 (dry) is measured after the standards by pumping clean outside air from an intake on the forward mast of the ship. \n\nSeawater intake and ancillary data:\nThe seawater intake is located at about 5.5m depth in the bow of the ship. Sea surface salinity is measured using a thermosalinograph (Seabird Electronics SBE21) located next to the CO2 system. A remote temperature sensor (Seabird Electronics SBE 38) located at the intake is used to measure sea surface temperature (SST). The travel time between the intake and CO2 system is typically about 4 minutes with warming usually less than 0.6ºC. The thermosalinograph water is from the same intake, but the supply lines separate after the intake. A comparison of thermosalinograph and equilibrator temperature records shows the temperature difference in the two lines is generally less than 0.1ºC. The thermosalinograph water line travels outside the ship and is typically warmer than the equilibrator. The travel time in water line to the thermosalinograph is 2.5 minutes faster than to the equilibrator. \n\nMeteorological data, salinity, SST, and ships position and time are taken from the ships logging system. These parameters and the data quality are maintained by the Australian Marine National Facility.&rft.creator=CSIRO Oceans & Atmosphere - Hobart&rft.date=2023&rft.coverage=140.78952,-47.088863 147.50258,-47.088863 147.50258,-42.971846 140.78952,-42.971846 140.78952,-47.088863&rft.coverage=140.78952,-47.088863 147.50258,-47.088863 147.50258,-42.971846 140.78952,-42.971846 140.78952,-47.088863&rft.coverage=true&rft_rights=Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0&rft_subject=Atmosphere&rft_subject=Atmospheric Pressure&rft_subject=Australia&rft_subject=Bluewater and Climate&rft_subject=Carbon Dioxide Measurements&rft_subject=Countries&rft_subject=Fugacity&rft_subject=IMOS Node&rft_subject=IMOS Sub-Facility&rft_subject=Ocean Biogeochemistry&rft_subject=Ocean Temperature&rft_subject=Ocean Winds&rft_subject=Oceans&rft_subject=Partial Pressure&rft_subject=SOOP-CO2&rft_subject=Salinity&rft_subject=Sea Surface Temperature&rft_subject=Southern Ocean&rft_subject=Surface Winds&rft_subject=Tasmania&rft_subject=pCO2&rft.type=dataset&rft.language=English Access the data
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Brief description

This data was collected in July 2012 by the IMOS Ship of Opportunity Underway CO2 Measurement research group on RV Southern Surveyor (IMOS platform code: VLHJ) voyage SS2012_V03.\n\nDeparted: \tHobart, TAS, July 11, 2012\nArrived: \tHobart, TAS, July 24, 2012\n\nCO2 System Overview:\nThe fugacity of carbon dioxide (fCO2) in surface seawater was measured using a General Oceanics Inc. automated system (Model 8050; Pierrot et al 2009). Seawater is sprayed into an equilibration chamber and CO2 in the headspace gas equilibrates with the seawater. The headspace gas is pumped through a thermoelectric condenser followed by a nafion drying tube before flowing through a Licor 7000 non-dispersive infrared gas analyser used to measure the CO2 mole fraction (XCO2) of the dried air. The gas flow is stopped temporarily for the CO2 measurements, which are made at atmospheric pressure. A set of four CO2 standards that cover the range of CO2 values expected in the ocean are analysed about every four hours to calibrate the gas analyser. The standard gas concentrations are on the WMO-X2007 mole fraction scale for CO2-in-air. Atmospheric XCO2 (dry) is measured after the standards by pumping clean outside air from an intake on the forward mast of the ship. \n\nSeawater intake and ancillary data:\nThe seawater intake is located at about 5.5m depth in the bow of the ship. Sea surface salinity is measured using a thermosalinograph (Seabird Electronics SBE21) located next to the CO2 system. A remote temperature sensor (Seabird Electronics SBE 38) located at the intake is used to measure sea surface temperature (SST). The travel time between the intake and CO2 system is typically about 4 minutes with warming usually less than 0.6ºC. The thermosalinograph water is from the same intake, but the supply lines separate after the intake. A comparison of thermosalinograph and equilibrator temperature records shows the temperature difference in the two lines is generally less than 0.1ºC. The thermosalinograph water line travels outside the ship and is typically warmer than the equilibrator. The travel time in water line to the thermosalinograph is 2.5 minutes faster than to the equilibrator. \n\nMeteorological data, salinity, SST, and ships position and time are taken from the ships logging system. These parameters and the data quality are maintained by the Australian Marine National Facility.

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Data available via the IMOS OPeNDAP server. -
Website of the Australian Ocean Data Network (AODN) -

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140.78952,-47.08886 147.50258,-47.08886 147.50258,-42.97185 140.78952,-42.97185 140.78952,-47.08886

144.14605,-45.0303545

140.78952,-47.08886 147.50258,-47.08886 147.50258,-42.97185 140.78952,-42.97185 140.78952,-47.08886

144.14605,-45.0303545

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Subjects
Atmosphere | Atmospheric Pressure | Australia | Bluewater and Climate | Carbon Dioxide Measurements | Countries | Fugacity | IMOS Node | IMOS Sub-Facility | Ocean Biogeochemistry | Ocean Temperature | Ocean Winds | Oceans | Partial Pressure | SOOP-CO2 | Salinity | Sea Surface Temperature | Southern Ocean | Surface Winds | Tasmania | pCO2 |

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