Data
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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=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/eb348f53-514c-4edd-9e54-61bbcb86ed83&rft.title=RV Investigator Voyage IN2022_V03 Triaxus (undulating CTD) Data&rft.identifier=f231550f-dbe7-4fdd-9cc1-e7a8b42a8cd2&rft.publisher=Australian Ocean Data Network&rft.description=This record describes the data (CTD, Dissolved Oxygen, Transmissometer, PAR, ECO Triplet, Nitrate, Fluorescence and LOPC) collected using the towed TRIAXUS platform on Investigator voyage IN2022_V03, titled: SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania. The voyage took place between May 4, 2022 and May 15, 2022 (AEST), departing from Hobart and returning to Hobart.Data for one Triaxus tow were acquired using Seabird’s Seasave acquisition software using the Seabird SBE911+ CTD #25. Sea-Bird and O&A Calibration lab supplied calibration factors were used to compute the pressure, preliminary conductivity, oxygen, and temperature values. The data was subjected to automated QC to remove spikes and out-of-range values.A PAR, transmissometer, and SUNA sensors were also installed on the auxiliary A/D channels of the CTD. In addition to the auxiliary channels an ECO Triplet and LOPC were mounted on the Triaxus as attached payloads. A load cell sensor was also attached to the Triaxus mechanical termination.The standard data product (1 decibar/10 second binned averaged) was produced using data from the secondary sensors to produce an along-track time-series dataset for each data recording file. These files were grouped into sections containing each Triaxus tow and in each tow, vertical casts were created with interpolated values from the along-track time-series binned dataset with a maximum interpolation distance of 1 cast/undulation. These generated the along-track and vertical cast section data products for each Triaxus tow.An issue was identified at the start of deployment once the Triaxus was in water and the pumps switched on, where the salinity values were in significant disagreement and both showing unrealistic readings. It was determined that the connectors for the primary and secondary conductivity sensors had been swapped. This was corrected without recovery and redeployment of the Triaxus by swapping the calibration parameters. Further manual manipulation of the data was required during post-processing to match the physically co-located sensors for correct salinity and oxygen value calculations.The collected data were processed (quality-controlled), and subsequently archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.Maintenance and Update Frequency: asNeededStatement: Original field data. Data processing and quality control by the MNF Data Acquisition and Processing Group (DAP). Data archived by the CSIRO NCMI Information and Data Centre.&rft.creator=Anonymous&rft.date=2022&rft.coverage=westlimit=143.2445; southlimit=-46.9109; eastlimit=145.0364; northlimit=-45.5987; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=143.2445; southlimit=-46.9109; eastlimit=145.0364; northlimit=-45.5987; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: We acknowledge the use of the CSIRO Marine National Facility, grid.473585.8 in undertaking this research. The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the Marine National Facility.&rft_subject=oceans&rft_subject=Earth Science | Oceans | Salinity/Density | Salinity&rft_subject=Earth Science | Oceans | Ocean Optics | Photosynthetically Active Radiation&rft_subject=Earth Science | Oceans | Ocean Pressure | Water Pressure&rft_subject=Earth Science | Terrestrial Hydrosphere | Water Quality/Water Chemistry | Light Transmission&rft_subject=Earth Science | Oceans | Ocean Optics | Turbidity&rft_subject=Earth Science | Oceans | Ocean Chemistry | Chlorophyll&rft_subject=Earth Science | Oceans | Ocean Chemistry | Nitrate&rft_subject=Earth Science | Oceans | Ocean Optics | Fluorescence&rft_subject=Earth Science | Oceans | Ocean Temperature | Water Temperature&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2022_V03&rft_subject=Vessel Data: undulating CTD&rft_subject=Ship: Investigator (RV)&rft_subject=SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania&rft_subject=Global / Oceans | Southern Ocean&rft_subject=Coastal Waters (Australia) | Tasmania Coast, TAS&rft_subject=MNF Research voyage (ShortNameSuffix _vnn)&rft_subject=Radiation Sensors&rft_subject=NOX monitor&rft_subject=Fluorometers&rft_subject=Altimeters&rft_subject=LOPC (Laser Optical Particle Counter)&rft_subject=Undulating CTD - Triaxus&rft_subject=Practical salinity of the water body&rft_subject=Temperature of the water body&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water only&rft_subject=research vessel&rft_subject=CTD&rft.type=dataset&rft.language=English Access the data

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Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: We acknowledge the use of the CSIRO Marine National Facility, grid.473585.8 in undertaking this research. The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the Marine National Facility.

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Full description

This record describes the data (CTD, Dissolved Oxygen, Transmissometer, PAR, ECO Triplet, Nitrate, Fluorescence and LOPC) collected using the towed TRIAXUS platform on Investigator voyage IN2022_V03, titled: "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania." The voyage took place between May 4, 2022 and May 15, 2022 (AEST), departing from Hobart and returning to Hobart.

Data for one Triaxus tow were acquired using Seabird’s Seasave acquisition software using the Seabird SBE911+ CTD #25. Sea-Bird and O&A Calibration lab supplied calibration factors were used to compute the pressure, preliminary conductivity, oxygen, and temperature values. The data was subjected to automated QC to remove spikes and out-of-range values.
A PAR, transmissometer, and SUNA sensors were also installed on the auxiliary A/D channels of the CTD. In addition to the auxiliary channels an ECO Triplet and LOPC were mounted on the Triaxus as attached payloads. A load cell sensor was also attached to the Triaxus mechanical termination.
The standard data product (1 decibar/10 second binned averaged) was produced using data from the secondary sensors to produce an along-track time-series dataset for each data recording file. These files were grouped into sections containing each Triaxus tow and in each tow, vertical casts were created with interpolated values from the along-track time-series binned dataset with a maximum interpolation distance of 1 cast/undulation. These generated the along-track and vertical cast section data products for each Triaxus tow.
An issue was identified at the start of deployment once the Triaxus was in water and the pumps switched on, where the salinity values were in significant disagreement and both showing unrealistic readings. It was determined that the connectors for the primary and secondary conductivity sensors had been swapped. This was corrected without recovery and redeployment of the Triaxus by swapping the calibration parameters. Further manual manipulation of the data was required during post-processing to match the physically co-located sensors for correct salinity and oxygen value calculations.

The collected data were processed (quality-controlled), and subsequently archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Additional information regarding this dataset may be contained in the Voyage Summary and the Data Processing Report.

Lineage

Maintenance and Update Frequency: asNeeded
Statement: Original field data. Data processing and quality control by the MNF Data Acquisition and Processing Group (DAP). Data archived by the CSIRO NCMI Information and Data Centre.

Notes

Credit
Triaxus data processed by Steve Van Graas (CSIRO NCMI).
Credit
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2022_V03
Credit
The MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.

Data time period: 2022-05-04 to 2022-05-15

This dataset is part of a larger collection

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145.0364,-45.5987 145.0364,-46.9109 143.2445,-46.9109 143.2445,-45.5987 145.0364,-45.5987

144.14045,-46.2548

text: westlimit=143.2445; southlimit=-46.9109; eastlimit=145.0364; northlimit=-45.5987; projection=WGS 84 (EPSG:4326)

Other Information
Link to Data License / Attribution statements (Data Licensing)

url : https://creativecommons.org/licenses/by/4.0/

Download the Processing Report (PDF format) (Processing Report (PDF))

url : https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=2018

Link to Data available for this voyage via the Data Trawler (Data Trawler)

url : http://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2022_V03&data_type=tctd

Download the along-track Triaxus Data (NetCDF format) (Triaxus Data along track (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5285

Download vertical-cast Triaxus Data (NetCDF format) (Triaxus Data as vertical casts (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5284

Link to RV Investigator Survey Information, including voyage plans and summaries (Investigator Survey)

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2022_V03

Link to the Marine National Facility Homepage (Marine National Facility)

url : https://mnf.csiro.au/

Identifiers
  • global : f231550f-dbe7-4fdd-9cc1-e7a8b42a8cd2