Data

RV Investigator Voyage IN2025_V05 ADCP Data

Australian Ocean Data Network
CSIRO NCMI - Hobart (Associated with) CSIRO NCMI - Information and Data Centre (Associated with) Data Librarian (Custodian of, Point of contact)
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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://marlin.csiro.au/geonetwork/srv/api/records/08711f5d-482d-474e-b428-3d67f6c44dc8&rft.title=RV Investigator Voyage IN2025_V05 ADCP Data&rft.identifier=08711f5d-482d-474e-b428-3d67f6c44dc8&rft.publisher=Australian Ocean Data Network&rft.description=This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2025_V05, titled: Eruption, destruction, and seafloor ecosystem recovery – Tonga's 2022 eruption of the century. The voyage took place between August 10, 2025 and October 01, 2025 (AEST), departing from Hobart and returning to Brisbane.The ADCP was run for most of the voyage, though it was turned off when EM712 and EM2040 Mk2 surveys were being performed to avoid creating interference in the multibeam data.ADCP data were collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed using the Common Ocean Data Access System (CODAS). Documentation for these systems can be found in (Hummon, 2009-2021).The RDI Ocean Surveyor 150kHz ADCP, RDI Ocean Surveyor 75kHz ADCP and RDI Ocean Surveyor 38kHz ADCP were run in narrowband mode.External triggering was used.The drop keel was set at 2 m below the hull for the duration of the voyage. The nominal transducer depth is set to 6 metres; any additional changes will need to be applied by the user if they believe it is required.Bottom tracking was run for the first hour of the voyage on the OS150nb to aid in calibrations.The following processing issues were encountered for this datasetOn this voyage, it was discovered the OS75 would report signal below the bottom, which is suspected to be electrical interference. This data set was split into two cruises to accommodate for changes in positioning systems during acquisition and subsequently reprocessed using the Seapath.For more information please see the Processing Report (linked below).This dataset was processed (quality-controlled), and then archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).Maintenance and Update Frequency: asNeededStatement: Original field data. Data processing and quality control: Performed by the NCMI DAP Group. Note that 1min average data is provided as a special request, however it is unedited and has data quality implications. For general use, the 5min average data (os150nb.nc) should be used.&rft.creator=Anonymous&rft.date=2026&rft.coverage=westlimit=65.00; southlimit=-65.00; eastlimit=185.00; northlimit=-9.00; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=65.00; southlimit=-65.00; eastlimit=185.00; northlimit=-9.00; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=Data are made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data are 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 their 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 | Ocean Circulation | Ocean Currents&rft_subject=Marine National Facility&rft_subject=Ship: Investigator (RV)&rft_subject=Research Voyage: IN2025_V05&rft_subject=Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century&rft_subject=ADCP (Acoustic Doppler Current Profiler)&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Global / Oceans | Southern Ocean&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

Data are made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data are 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 their 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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Full description

This record describes the Acoustic Doppler Current Profiler (ADCP) data collected from the Marine National Facility RV Investigator voyage IN2025_V05, titled: "Eruption, destruction, and seafloor ecosystem recovery – Tonga's 2022 eruption of the century." The voyage took place between August 10, 2025 and October 01, 2025 (AEST), departing from Hobart and returning to Brisbane.

The ADCP was run for most of the voyage, though it was turned off when EM712 and EM2040 Mk2 surveys were being performed to avoid creating interference in the multibeam data.

ADCP data were collected using the University of Hawaii Data Acquisition System (UHDAS) and post-processed using the Common Ocean Data Access System (CODAS). Documentation for these systems can be found in (Hummon, 2009-2021).
The RDI Ocean Surveyor 150kHz ADCP, RDI Ocean Surveyor 75kHz ADCP and RDI Ocean Surveyor 38kHz ADCP were run in narrowband mode.

External triggering was used.

The drop keel was set at 2 m below the hull for the duration of the voyage. The nominal transducer depth is set to 6 metres; any additional changes will need to be applied by the user if they believe it is required.

Bottom tracking was run for the first hour of the voyage on the OS150nb to aid in calibrations.
The following processing issues were encountered for this dataset

On this voyage, it was discovered the OS75 would report signal below the bottom, which is suspected to be electrical interference. This data set was split into two cruises to accommodate for changes in positioning systems during acquisition and subsequently reprocessed using the Seapath.

For more information please see the Processing Report (linked below).

This dataset was processed (quality-controlled), and then archived by the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC).

Lineage

Maintenance and Update Frequency: asNeeded
Statement: Original field data. Data processing and quality control: Performed by the NCMI DAP Group. Note that 1min average data is provided as a special request, however it is unedited and has data quality implications. For general use, the 5min average data (os150nb.nc) should be used.

Notes

Credit
ADCP data processed by MNF Data Acquisition and Processing personnel.
Credit
These data were collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V05
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.

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Spatial Coverage And Location

text: westlimit=65.00; southlimit=-65.00; eastlimit=185.00; northlimit=-9.00; projection=WGS 84 (EPSG:4326)

Subjects
ADCP (Acoustic Doppler Current Profiler) | Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS | Earth Science | Oceans | Ocean Circulation | Ocean Currents | Eruption, destruction and seafloor ecosystem recovery – Tonga 2022 eruption of the century | Global / Oceans | Southern Ocean | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Research Voyage: IN2025_V05 | Ship: Investigator (RV) | oceans |

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Other Information
Download the 5 minute ADCP os75nb Data (NetCDF format) (5 minute ADCP os75nb Data (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5830

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

url : https://www.marine.csiro.au/data/reporting/get_file.cfm?eov_pub_id=3931

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

url : https://www.marine.csiro.au/data/trawler/dataset.cfm?survey=IN2025_V05&data_type=adcp

Download overview plots of collected OS75nb ADCP data (OS75nb Plots)

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5831

Download overview plots of collected OS150nb ADCP data (OS150nb Plots)

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5832

Download the 5 minute ADCP os150nb Data (NetCDF format) (5 minute ADCP os150nb Data (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5833

Download the 5 minute ADCP OS38nb Data (NetCDF format) (5 minute ADCP OS38nb Data (NC))

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5834

Download overview plots of collected OS38nb ADCP data (OS38nb Plots)

url : https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5835

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_V05

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

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

Identifiers
  • global : 08711f5d-482d-474e-b428-3d67f6c44dc8
ACN 633 798 857