IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station)
Statement: Parameters logged by the fCO2 system and ship sensors are quality controlled after each voyage. 1. Data with missing parameters or obvious outliers for the ship or fCO2 system parameters are marked as missing and removed from the calculations. Parameter values are flagged as good (flag=2)...
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Integrated Marine Observing System
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Online Access: | https://researchdata.edu.au/imos-soop-ocean-durville-station/476397 |
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ftands:oai:ands.org.au::476397 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans Countries | Australia Continents | Antarctica Global / Oceans | Southern Ocean Coastal Cities / Towns (Australia) | Hobart TAS IMOS Sub-Facility | SOOP-CO2 | Carbon Dioxide Measurements IMOS Node | Bluewater and Climate Ocean Biogeochemistry pCO2 Partial Pressure Fugacity SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ATMOSPHERIC PRESSURE ATMOSPHERE SURFACE WINDS OCEAN WINDS SALINITY SALINITY/DENSITY cruise_designation latitude longitude mole_fraction_of_carbon_dioxide_in_the_equilibrator_head_space mole_fraction_of_carbon_dioxide_in_air mole_fraction_of_carbon_dioxide_in_air_interpolated equilibrator_head_space_pressure air_pressure equilibrator_water_temperature sea_surface_temperature sea_surface_salinity fugacity_of_carbon_dioxide_at_surface_water_salinity_and_temperature fugacity_of_carbon_dioxide_in_the_atmosphere air_sea_gradient_in_fugacity_of_carbon_dioxide gas_flow_through_infrared_gas_analyser water_flow_to_equilibrator wind_speed wind_from_direction measurement_type |
spellingShingle |
oceans Countries | Australia Continents | Antarctica Global / Oceans | Southern Ocean Coastal Cities / Towns (Australia) | Hobart TAS IMOS Sub-Facility | SOOP-CO2 | Carbon Dioxide Measurements IMOS Node | Bluewater and Climate Ocean Biogeochemistry pCO2 Partial Pressure Fugacity SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ATMOSPHERIC PRESSURE ATMOSPHERE SURFACE WINDS OCEAN WINDS SALINITY SALINITY/DENSITY cruise_designation latitude longitude mole_fraction_of_carbon_dioxide_in_the_equilibrator_head_space mole_fraction_of_carbon_dioxide_in_air mole_fraction_of_carbon_dioxide_in_air_interpolated equilibrator_head_space_pressure air_pressure equilibrator_water_temperature sea_surface_temperature sea_surface_salinity fugacity_of_carbon_dioxide_at_surface_water_salinity_and_temperature fugacity_of_carbon_dioxide_in_the_atmosphere air_sea_gradient_in_fugacity_of_carbon_dioxide gas_flow_through_infrared_gas_analyser water_flow_to_equilibrator wind_speed wind_from_direction measurement_type IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
topic_facet |
oceans Countries | Australia Continents | Antarctica Global / Oceans | Southern Ocean Coastal Cities / Towns (Australia) | Hobart TAS IMOS Sub-Facility | SOOP-CO2 | Carbon Dioxide Measurements IMOS Node | Bluewater and Climate Ocean Biogeochemistry pCO2 Partial Pressure Fugacity SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ATMOSPHERIC PRESSURE ATMOSPHERE SURFACE WINDS OCEAN WINDS SALINITY SALINITY/DENSITY cruise_designation latitude longitude mole_fraction_of_carbon_dioxide_in_the_equilibrator_head_space mole_fraction_of_carbon_dioxide_in_air mole_fraction_of_carbon_dioxide_in_air_interpolated equilibrator_head_space_pressure air_pressure equilibrator_water_temperature sea_surface_temperature sea_surface_salinity fugacity_of_carbon_dioxide_at_surface_water_salinity_and_temperature fugacity_of_carbon_dioxide_in_the_atmosphere air_sea_gradient_in_fugacity_of_carbon_dioxide gas_flow_through_infrared_gas_analyser water_flow_to_equilibrator wind_speed wind_from_direction measurement_type |
description |
Statement: Parameters logged by the fCO2 system and ship sensors are quality controlled after each voyage. 1. Data with missing parameters or obvious outliers for the ship or fCO2 system parameters are marked as missing and removed from the calculations. Parameter values are flagged as good (flag=2), questionable (flag=3), or bad (flag=4), depending on the range of values expected. Many of the ship and CO2 system parameters are not reported in the final dataset, but are used to establish that the system is functioning correctly. For example, water flow rates to the equilibrator below 2 LPM are flagged as questionable and the cause investigated with the flag value changed to 4 if the flow has been interrupted or is insufficient. Similar checks are made to ensure the gas flow through the infrared gas analyser is in a suitable range (50 to 120ml/min). The list of parameters checked are: CO2 system data quality controlled: GPS date and Time Latitude and Longitude Water flow rate Gas flow rates through licor analyser Atmospheric pressure Equilibrator pressure Equilibrator water temperature Mole fraction CO2 Water vapour in gas stream Licor NDIR temperature Ship’s data quality controlled: GPS date and time Latitude and Longitude Sea surface temperature Sea surface salinity Relative wind speed and direction True wind speed and direction 2. The data sets are next evaluated for excessive warming of the seawater flowing to the equilibrator, and for contamination of the atmospheric measurements by ship stack gas. The fCO2 value in the water is sensitive to warming between the ship intake and equilibrator. The travel time between the ship intake and equilibrator is first checked by comparing the timing of rapid changes in surface water temperature for the intake (SST) and the equilibrator temperatures. The travel time or lag time is normally about 50 seconds. The warming in the system used on MV l’Astrolabe is typically about 0.3 °C, increasing to about 0.4°C in cooler regions. Atmospheric CO2 values can be influenced by ... |
author2 |
AODN Data Manager (pointOfContact) AODN Data Manager (distributor) Akl, John (processor) CSIRO Oceans & Atmosphere - Aspendale (hasAssociationWith) CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith) CSIRO Oceans & Atmosphere - IOMRC Crawley (hasAssociationWith) CSIRO Oceans & Atmosphere - St. Lucia (hasAssociationWith) Data Officer (pointOfContact) Data Officer (distributor) Integrated Marine Observing System (IMOS) (resourceProvider) Tilbrook, Bronte (hasPrincipalInvestigator) |
format |
Dataset |
title |
IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
title_short |
IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
title_full |
IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
title_fullStr |
IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
title_full_unstemmed |
IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) |
title_sort |
imos - soop ocean carbon dioxide data from mv l'astrolabe voyage al1112r2 (hobart-dumont d'urville station) |
publisher |
Integrated Marine Observing System |
url |
https://researchdata.edu.au/imos-soop-ocean-durville-station/476397 |
op_coverage |
Spatial: westlimit=142.8138; southlimit=-64.5459; eastlimit=147.2491; northlimit=-44.1684 Spatial: uplimit=3; downlimit=3 Temporal: From 2012-01-07 to 2012-01-12 |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_source |
Integrated Marine Observing System (IMOS) CSIRO Oceans & Atmosphere - Hobart |
op_relation |
https://researchdata.edu.au/imos-soop-ocean-durville-station/476397 3b7c02d2-e41c-405a-bf85-22cab09d6daa |
_version_ |
1810493136437248000 |
spelling |
ftands:oai:ands.org.au::476397 2024-09-15T17:45:21+00:00 IMOS - SOOP Ocean Carbon Dioxide Data from MV L'Astrolabe voyage AL1112R2 (Hobart-Dumont d'Urville station) AODN Data Manager (pointOfContact) AODN Data Manager (distributor) Akl, John (processor) CSIRO Oceans & Atmosphere - Aspendale (hasAssociationWith) CSIRO Oceans & Atmosphere - Hobart (hasAssociationWith) CSIRO Oceans & Atmosphere - IOMRC Crawley (hasAssociationWith) CSIRO Oceans & Atmosphere - St. Lucia (hasAssociationWith) Data Officer (pointOfContact) Data Officer (distributor) Integrated Marine Observing System (IMOS) (resourceProvider) Tilbrook, Bronte (hasPrincipalInvestigator) Spatial: westlimit=142.8138; southlimit=-64.5459; eastlimit=147.2491; northlimit=-44.1684 Spatial: uplimit=3; downlimit=3 Temporal: From 2012-01-07 to 2012-01-12 https://researchdata.edu.au/imos-soop-ocean-durville-station/476397 unknown Integrated Marine Observing System https://researchdata.edu.au/imos-soop-ocean-durville-station/476397 3b7c02d2-e41c-405a-bf85-22cab09d6daa Integrated Marine Observing System (IMOS) CSIRO Oceans & Atmosphere - Hobart oceans Countries | Australia Continents | Antarctica Global / Oceans | Southern Ocean Coastal Cities / Towns (Australia) | Hobart TAS IMOS Sub-Facility | SOOP-CO2 | Carbon Dioxide Measurements IMOS Node | Bluewater and Climate Ocean Biogeochemistry pCO2 Partial Pressure Fugacity SEA SURFACE TEMPERATURE EARTH SCIENCE OCEAN TEMPERATURE ATMOSPHERIC PRESSURE ATMOSPHERE SURFACE WINDS OCEAN WINDS SALINITY SALINITY/DENSITY cruise_designation latitude longitude mole_fraction_of_carbon_dioxide_in_the_equilibrator_head_space mole_fraction_of_carbon_dioxide_in_air mole_fraction_of_carbon_dioxide_in_air_interpolated equilibrator_head_space_pressure air_pressure equilibrator_water_temperature sea_surface_temperature sea_surface_salinity fugacity_of_carbon_dioxide_at_surface_water_salinity_and_temperature fugacity_of_carbon_dioxide_in_the_atmosphere air_sea_gradient_in_fugacity_of_carbon_dioxide gas_flow_through_infrared_gas_analyser water_flow_to_equilibrator wind_speed wind_from_direction measurement_type dataset ftands 2024-08-06T01:58:59Z Statement: Parameters logged by the fCO2 system and ship sensors are quality controlled after each voyage. 1. Data with missing parameters or obvious outliers for the ship or fCO2 system parameters are marked as missing and removed from the calculations. Parameter values are flagged as good (flag=2), questionable (flag=3), or bad (flag=4), depending on the range of values expected. Many of the ship and CO2 system parameters are not reported in the final dataset, but are used to establish that the system is functioning correctly. For example, water flow rates to the equilibrator below 2 LPM are flagged as questionable and the cause investigated with the flag value changed to 4 if the flow has been interrupted or is insufficient. Similar checks are made to ensure the gas flow through the infrared gas analyser is in a suitable range (50 to 120ml/min). The list of parameters checked are: CO2 system data quality controlled: GPS date and Time Latitude and Longitude Water flow rate Gas flow rates through licor analyser Atmospheric pressure Equilibrator pressure Equilibrator water temperature Mole fraction CO2 Water vapour in gas stream Licor NDIR temperature Ship’s data quality controlled: GPS date and time Latitude and Longitude Sea surface temperature Sea surface salinity Relative wind speed and direction True wind speed and direction 2. The data sets are next evaluated for excessive warming of the seawater flowing to the equilibrator, and for contamination of the atmospheric measurements by ship stack gas. The fCO2 value in the water is sensitive to warming between the ship intake and equilibrator. The travel time between the ship intake and equilibrator is first checked by comparing the timing of rapid changes in surface water temperature for the intake (SST) and the equilibrator temperatures. The travel time or lag time is normally about 50 seconds. The warming in the system used on MV l’Astrolabe is typically about 0.3 °C, increasing to about 0.4°C in cooler regions. Atmospheric CO2 values can be influenced by ... Dataset Antarc* Antarctica Southern Ocean Research Data Australia (Australian National Data Service - ANDS) |