Data
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://140.79.20.100:8080/geonetwork/srv/eng/catalog.search#/metadata/ff887cf9-18bb-464e-8bad-5dc6e0ad946b&rft.title=RV Investigator Voyage IN2021_V01 EK60/EK80 Echosounder&rft.identifier=7f38b17d-5b9d-4e8e-8c4e-1fac9b72e348&rft.publisher=Australian Ocean Data Network&rft.description=This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2021_V01, Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory, which departed Hobart on the 29th January 2021 and returned to Hobart on the 24th March 2021 (AEST).The Simrad EK80 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a maximum range of 1500 m between Hobart and near Mawson station, Antarctica. All frequencies were logged continuously for the extent of the voyage. Acquisition settings (pulse length, power) were varied for the transit and survey portions of the voyage according to science requirements. Specific settings for each time period can be obtained from the GSM voyage report. From 1 Feb, 2021 the 18kHz WBT was replaced with the 18kHz GPT which was run for the remainder of the voyage. A calibration was performed at the survey location on 13 Feb 2021.Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 3192 files totalling 295 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.Maintenance and Update Frequency: asNeededStatement: Original field data.&rft.creator=Nau, Amy&rft.date=2024&rft.coverage=westlimit=54.903; southlimit=-68.003; eastlimit=147.553; northlimit=-42.886; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=54.903; southlimit=-68.003; eastlimit=147.553; northlimit=-42.886; 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 in2021_v01 by the Marine National Facility.&rft_subject=oceans&rft_subject=Ship: Investigator (RV)&rft_subject=Marine National Facility&rft_subject=Research Voyage: IN2021_V01&rft_subject=Earth Science | Oceans | Ocean Acoustics&rft_subject=Coastal Waters (Australia) | Tasmania Coast, TAS&rft_subject=Named Locations (Antarctica) | Mawson Station (Australia)&rft_subject=Fisheries echosounder EK60&rft_subject=Fisheries echosounder - EK80&rft_subject=Abundance of biota&rft_subject=Biovolume&rft_subject=Sea-floor depth below surface of the water body&rft_subject=research vessel&rft_subject=Fish-finder echosounders&rft.type=dataset&rft.language=English Access the data

Licence & Rights:

Open Licence view details
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, grid.473585.8 in undertaking this research. The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage in2021_v01 by the Marine National Facility.

Access:

Other

Full description

This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2021_V01, "Quantifying krill abundance for krill monitoring and management off the Australian Antarctic Territory", which departed Hobart on the 29th January 2021 and returned to Hobart on the 24th March 2021 (AEST).

The Simrad EK80 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a maximum range of 1500 m between Hobart and near Mawson station, Antarctica. All frequencies were logged continuously for the extent of the voyage. Acquisition settings (pulse length, power) were varied for the transit and survey portions of the voyage according to science requirements. Specific settings for each time period can be obtained from the GSM voyage report. From 1 Feb, 2021 the 18kHz WBT was replaced with the 18kHz GPT which was run for the remainder of the voyage. A calibration was performed at the survey location on 13 Feb 2021.
Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 3192 files totalling 295 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

Maintenance and Update Frequency: asNeeded
Statement: Original field data.

This dataset is part of a larger collection

Click to explore relationships graph

147.553,-42.886 147.553,-68.003 54.903,-68.003 54.903,-42.886 147.553,-42.886

101.228,-55.4445

text: westlimit=54.903; southlimit=-68.003; eastlimit=147.553; northlimit=-42.886; projection=WGS 84 (EPSG:4326)

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/trawler/survey_details.cfm?survey=IN2021_V01

RV Investigator survey information

url : https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2021_V01

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=in2021_v01

Identifiers
  • global : 7f38b17d-5b9d-4e8e-8c4e-1fac9b72e348