Data

RV Investigator Voyage IN2025_V04 EM124 Multibeam Echosounder Data

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) GSM Data Request (Point of contact) GSM Support (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=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/5c8b9142-e67c-4997-8465-35c74ac34c8b&rft.title=RV Investigator Voyage IN2025_V04 EM124 Multibeam Echosounder Data&rft.identifier=a7d713aa-8201-4ac5-bf59-af9ec8a24989&rft.publisher=Australian Ocean Data Network&rft.description=This record describes multibeam echosounder data collected on RV Investigator voyage IN2025_V04, titled Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV. The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.The EM124 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz. Data are stored in *.kmall raw format for bathymetry and backscatter and *.kmwcd format for watercolumn backscatter at CSIRO. There are 20 files totalling 1.85 GB of raw data and 20 files totalling 4.0 GB of watercolumn data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.kmall format are corrected for motion and position. GPS tide was computed using the EGM2008 model and applied to the processed data. Processed data has had outliers removed. Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report.Maintenance and Update Frequency: asNeededStatement: Original field data. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position and edited using CARIS version 12.1.1&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 'RV Investigator Voyage IN2025_V04 EM124 Multibeam Echosounder Data' downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage IN2025_V04 by the Marine National Facility.&rft_subject=oceans&rft_subject=geoscientificInformation&rft_subject=Ship: Investigator (RV)&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2025_V04&rft_subject=Earth Science | Oceans | Bathymetry/Seafloor Topography&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Marine Features (Australia) | Bass Strait, TAS/VIC&rft_subject=Coastal Waters (Australia) | Victoria Coast, VIC&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Coastal Waters (Australia) | New South Wales Coast, NSW&rft_subject=Multibeam Echosounder - EM124&rft.type=dataset&rft.language=English Access the data
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CC-BY

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 (https://ror.org/01mae9353 ) in undertaking this research.” The dataset 'RV Investigator Voyage IN2025_V04 EM124 Multibeam Echosounder Data' downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage IN2025_V04 by the Marine National Facility.

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Full description

This record describes multibeam echosounder data collected on RV Investigator voyage IN2025_V04, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV." The voyage took place between May 27, 2025 and June 28, 2025 (AEST), departing from Hobart and returning to Hobart.

The EM124 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz.

Data are stored in *.kmall raw format for bathymetry and backscatter and *.kmwcd format for watercolumn backscatter at CSIRO.

There are 20 files totalling 1.85 GB of raw data and 20 files totalling 4.0 GB of watercolumn data in this dataset.

Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.kmall format are corrected for motion and position.

GPS tide was computed using the EGM2008 model and applied to the processed data. Processed data has had outliers removed.

Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report.

Lineage

Maintenance and Update Frequency: asNeeded
Statement: Original field data. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position and edited using CARIS version 12.1.1

Notes

Credit
Data collected on the Marine National Facility (MNF) RV Investigator voyage IN2025_V04, titled "Untangling the causes of change over 25 years in the southeast marine ecosystem - Voyage IV. 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.

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
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 | Bathymetry/Seafloor Topography | Marine Features (Australia) | Bass Strait, TAS/VIC | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Multibeam Echosounder - EM124 | Research Voyage: IN2025_V04 | Ship: Investigator (RV) | geoscientificInformation | oceans |

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Other Information
Geophysical Survey and Mapping website information for this data set and link to downloading data. (Geophysical Survey and Mapping website information for this data set)

url : https://www.marine.csiro.au/data/gsm/gsm_extract.cfm?survey=IN2025_V04&instrument=EM122

RV Investigator survey information

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2025_V04

Marine National Facility home page (MNF home page)

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

Link to visualisation tool for Near Real-Time Underway Data (NRUD) (Underway Visualisation Tool)

url : http://www.marine.csiro.au/data/underway/?survey=IN2025_V04

Link to the CSIRO Data Access Portal (Data Access Portal)

url : https://data.csiro.au/dap/

Identifiers
  • global : a7d713aa-8201-4ac5-bf59-af9ec8a24989