Data

RV Investigator Voyage IN2025_V04 CTD Data

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) CSIRO/NCMI (Associated with) Data Officer (AR), Hobart (Processor of)
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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 IN2025_V04 CTD Data&rft.identifier=05f6dfbd-8801-486c-80b1-df8724cbfcb9&rft.publisher=Australian Ocean Data Network&rft.description=This record describes the CTD data collected on Investigator voyage IN2025_V04, titled: Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV (SEA-MES Voyage 4). The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.Data for 61 CTD deployments were acquired using the Sea-Bird SBE911 CTD unit #22, fitted with 36 twelve-litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO-supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.Majority of casts were bottom approaches to 10m off bottom, some casts did not approach the bottom due to the operators deciding that conditions were too risky to attempt a bottom approach. The test cast was not attempted due to strong winds, hence cast #01 was a scientific cast.Cast #61 no SUNA data is available for this cast.Between cast #35 and #36 the pumped sensors were cleaned with freshwater. This did not affect the conductivity sensor but did the oxygen sensor, hence the final calibrations were based on a single deployment group for conductivity and multiple deployment groupings for oxygen. The final conductivity calibration from the secondary sensor had a standard deviation (SD) of 0.0030364 PSU, outside our target of ‘better than 0.002 PSU’. The standard product of 1-decibar binned averages were produced using data from the secondary sensors. The dissolved oxygen data calibration fit had a SD of 0.68397μM (#01-#35) and 0.79591μM (#36-#61). The agreement between the CTD and bottle data was good.PAR, CDOM, Transmissometer, Chlorophyll-a and Scattering sensors were also installed on the auxiliary A/D channels of the CTD.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=2025&rft.coverage=westlimit=147.339; southlimit=-43.3202; eastlimit=150.3939; northlimit=-36.5277; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=147.339; southlimit=-43.3202; eastlimit=150.3939; northlimit=-36.5277; 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 (https://ror.org/01mae9353) 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 Pressure | Water Pressure&rft_subject=Earth Science | Oceans | Ocean Temperature | Water Temperature&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2025_V04&rft_subject=Vessel Data: CTD&rft_subject=Ship: Investigator (RV)&rft_subject=Untangling the causes of change over 25 years in the southeast marine ecosystem&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Marine Features (Australia) | Bass Strait, TAS/VIC&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Coastal Waters (Australia) | Victoria Coast, VIC&rft_subject=Coastal Waters (Australia) | New South Wales Coast, NSW&rft_subject=MNF Research voyage (ShortNameSuffix _vnn)&rft_subject=CTDs (Conductivity-Temperature-Depth Profilers)&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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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 (https://ror.org/01mae9353) 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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This record describes the CTD data collected on Investigator voyage IN2025_V04, titled: "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV (SEA-MES Voyage 4)." The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.

Data for 61 CTD deployments were acquired using the Sea-Bird SBE911 CTD unit #22, fitted with 36 twelve-litre bottles on the rosette sampler. Sea-Bird-supplied calibration factors were used to compute the pressures and preliminary conductivity values. CSIRO-supplied calibrations were applied to the temperature data. The data were subjected to automated QC to remove spikes and out-of-range values.

Majority of casts were bottom approaches to 10m off bottom, some casts did not approach the bottom due to the operators deciding that conditions were too risky to attempt a bottom approach. The test cast was not attempted due to strong winds, hence cast #01 was a scientific cast.

Cast #61 no SUNA data is available for this cast.

Between cast #35 and #36 the pumped sensors were cleaned with freshwater. This did not affect the conductivity sensor but did the oxygen sensor, hence the final calibrations were based on a single deployment group for conductivity and multiple deployment groupings for oxygen. The final conductivity calibration from the secondary sensor had a standard deviation (SD) of 0.0030364 PSU, outside our target of ‘better than 0.002 PSU’. The standard product of 1-decibar binned averages were produced using data from the secondary sensors. The dissolved oxygen data calibration fit had a SD of 0.68397μM (#01-#35) and 0.79591μM (#36-#61). The agreement between the CTD and bottle data was good.

PAR, CDOM, Transmissometer, Chlorophyll-a and Scattering sensors were also installed on the auxiliary A/D channels of the CTD.

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.

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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
CTD data processed by Ella Pietraroia (CSIRO NCMI).
Credit
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V04
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: 2025-05-27 to 2015-01-01

This dataset is part of a larger collection

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150.3939,-36.5277 150.3939,-43.3202 147.339,-43.3202 147.339,-36.5277 150.3939,-36.5277

148.86645,-39.92395

text: westlimit=147.339; southlimit=-43.3202; eastlimit=150.3939; northlimit=-36.5277; projection=WGS 84 (EPSG:4326)

Subjects
CTD | CTDs (Conductivity-Temperature-Depth Profilers) | Coastal Waters (Australia) | New South Wales Coast, NSW | Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS | Coastal Waters (Australia) | Victoria Coast, VIC | Earth Science | Oceans | Ocean Pressure | Water Pressure | Earth Science | Oceans | Ocean Temperature | Water Temperature | Earth Science | Oceans | Salinity/Density | Salinity | MNF Research voyage (ShortNameSuffix _vnn) | Marine Features (Australia) | Bass Strait, TAS/VIC | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Practical salinity of the water body | Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it | Pressure (measured variable) in the water body exerted by overlying sea water only | Research Voyage: IN2025_V04 | Ship: Investigator (RV) | Temperature of the water body | Untangling the causes of change over 25 years in the southeast marine ecosystem | Vessel Data: CTD | oceans | research vessel |

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

url : https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=3727

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

url : http://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2025_V04&data_type=ctd

Download the CTD Data (NetCDF Format) (CTD Data (NetCDF))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5686

Download the CTD Data (Matlab Format) (CTD Data (Matlab Format))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5685

Download the CTD Data (CSV format) (CTD Data (CSV))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5684

Download plots associated with the Processing Report (PNG Format) (Plots for Processing Report (PNG))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5683

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=IN2025_V04

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

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

Identifiers
  • global : 05f6dfbd-8801-486c-80b1-df8724cbfcb9