Data

RV Investigator Voyage IN2018_V05 EK60 Echosounder

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) Vandenbossche, Phil (Originator of, 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/16913b58-3dc8-4a9e-a8ef-a26a55bc3bcb&rft.title=RV Investigator Voyage IN2018_V05 EK60 Echosounder&rft.identifier=16913b58-3dc8-4a9e-a8ef-a26a55bc3bcb&rft.publisher=Australian Ocean Data Network&rft.description=This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2018_V05, 'How does a standing meander southeast of Tasmania brake the Antarctic Circumpolar Current?' which departed Hobart on the 16th October 2018 and returned to Hobart on the 16th November 2018. The objectives of the voyage included: (1) Deployment of a fleet of EM-APEX profiling floats, (2) Deployment of a tall mooring at the crest of a meander in the Polar Front of the Antarctic Circumpolar Current, (3) Full-depth hydrographic survey of the physics and biogeochemistry of the targeted ACC meander, conducting transects across the front and (4) Triaxus transects across and along the front. The Simrad EK60 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m, from Hobart to Hobart. All frequencies were logged continuously (with the exception of occasional cessations required for acoustically quiet periods) for the extent of the voyage. The frequencies were set to passive during sensitive VMP deployment periods of the voyage in the ACC, when acoustic silent periods were requested by the science party.Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 1221 files totalling 105 GB of raw data in this dataset.No processing has been conducted on this data.Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.Progress Code: completedMaintenance and Update Frequency: asNeededStatement: Original field data.&rft.creator=Anonymous&rft.date=2016&rft.coverage=westlimit=147.348; southlimit=-57.344; eastlimit=156.344; northlimit=-42.887; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=147.348; southlimit=-57.344; eastlimit=156.344; northlimit=-42.887; 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: 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=Ship: Investigator (RV)&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2018_V05&rft_subject=Earth Science | Oceans | Ocean Acoustics&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Coastal Waters (Australia) | Tasmania Coast, TAS&rft_subject=Global / Oceans | Southern Ocean/ Australia extension&rft_subject=Global / Oceans&rft_subject=Fisheries echosounder EK60&rft_subject=Abundance of biota&rft_subject=Biovolume&rft_subject=Sea-floor depth below surface of the water body&rft_subject=Fish-finder echosounders&rft_subject=research vessel&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: 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 scientific split-beam echosounder data collected on the RV Investigator voyage IN2018_V05, 'How does a standing meander southeast of Tasmania brake the Antarctic Circumpolar Current?' which departed Hobart on the 16th October 2018 and returned to Hobart on the 16th November 2018. The objectives of the voyage included: (1) Deployment of a fleet of EM-APEX profiling floats, (2) Deployment of a tall mooring at the crest of a meander in the Polar Front of the Antarctic Circumpolar Current, (3) Full-depth hydrographic survey of the physics and biogeochemistry of the targeted ACC meander, conducting transects across the front and (4) Triaxus transects across and along the front.

The Simrad EK60 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m, from Hobart to Hobart. All frequencies were logged continuously (with the exception of occasional cessations required for acoustically quiet periods) for the extent of the voyage. The frequencies were set to passive during sensitive VMP deployment periods of the voyage in the ACC, when acoustic silent periods were requested by the science party.

Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 1221 files totalling 105 GB of raw data in this dataset.

No processing has been conducted on this data.

Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

Lineage

Progress Code: completed
Maintenance and Update Frequency: asNeeded
Statement: Original field data.

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156.344,-42.887 156.344,-57.344 147.348,-57.344 147.348,-42.887 156.344,-42.887

151.846,-50.1155

text: westlimit=147.348; southlimit=-57.344; eastlimit=156.344; northlimit=-42.887; projection=WGS 84 (EPSG:4326)

Subjects
Abundance of biota | Biovolume | Coastal Waters (Australia) | Tasmania Coast, TAS | Earth Science | Oceans | Ocean Acoustics | Fish-finder echosounders | Fisheries echosounder EK60 | Global / Oceans | Global / Oceans | Southern Ocean/ Australia extension | Marine Features (Australia) | Derwent Estuary, TAS | Marine National Facility | Research Voyage: IN2018_V05 | Sea-floor depth below surface of the water body | Ship: Investigator (RV) | oceans | research vessel |

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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=IN2018_V05&instrument=EK60

RV Investigator survey information

url : https://www.marine.csiro.au/data/trawler/survey_list.cfm?source_id=309

Marine National Facility home page (MNF home page)

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

Geophysical Survey and Mapping acquisition report (GSM voyage report)

url : https://www.marine.csiro.au/data/gsm/get_report.cfm?survey=in2018_v05

Identifiers
  • global : 16913b58-3dc8-4a9e-a8ef-a26a55bc3bcb