Data

RV Investigator Voyage IN2021_E02 EM122 Multibeam Echosounder Data

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) Navidad, Cisco (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=http://140.79.20.100:8080/geonetwork/srv/eng/catalog.search#/metadata/5c8b9142-e67c-4997-8465-35c74ac34c8b&rft.title=RV Investigator Voyage IN2021_E02 EM122 Multibeam Echosounder Data&rft.identifier=d72f4449-a80f-445c-a54e-42e9c02cc5a9&rft.publisher=Australian Ocean Data Network&rft.description=This record describes multibeam echosounder data collected on RV Investigator voyage IN2021_E02, to calibrate and commission new, upgraded and existing critical equipment (with sea trials and personnel training) onboard RV Investigator for upcoming voyages in the 2021 schedule and beyond. The primary objectives for this voyage were testing the Deep Corer winch stream and respool, Trawling winch calibration, CTD winch 1 & 2 calibrations, HOTS commissioning and Heave Compensation testing, and Deep Towed Camera trial and calibration. The voyage took place between November 20 and November 28, 2021, departing from Hobart (TAS) and returning to Hobart. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter east of Tasmania and around Freycinet Marine Park. The EM122 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 182 files totalling 10.7 GB of raw data in this dataset and 182 files totalling 13.8 GB of water column data. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position. Tide corrections were applied to the processed data using RTK/GPS height and the EGM2008 geoid model in Caris. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including information on processing streams, 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. Processed data are SV corrected, tide not corrected and edited using CARIS version 11.3.23&rft.creator=Anonymous&rft.date=2022&rft.coverage=westlimit=147.33; southlimit=-43.6783; eastlimit=153.295; northlimit=-40.52833; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=147.33; southlimit=-43.6783; eastlimit=153.295; northlimit=-40.52833; projection=WGS 84 (EPSG:4326)&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=https://i.creativecommons.org/l/by/4.0/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Attribution 4.0&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&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 IN2021_E02 by the Marine National Facility.&rft_rights=Attribution 4.0&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_subject=oceans&rft_subject=geoscientificInformation&rft_subject=Ship: Investigator (RV)&rft_subject=Marine National Facility&rft_subject=Gear Trials: IN2021_E02&rft_subject=Earth Science | Oceans | Bathymetry/Seafloor Topography&rft_subject=Marine Features (Australia) | Derwent Estuary, TAS&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Multibeam Echosounder - EM122&rft_subject=Investigator - general vessel operations, gear trials, etc.&rft_subject=Sea-floor depth below surface of the water body&rft_subject=Sea-floor surface hardness&rft_subject=Density of the water body&rft_subject=research vessel&rft_subject=multi-beam echosounders&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: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage IN2021_E02 by the Marine National Facility.

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Brief description

This record describes multibeam echosounder data collected on RV Investigator voyage IN2021_E02, to calibrate and commission new, upgraded and existing critical equipment (with sea trials and personnel training) onboard RV Investigator for upcoming voyages in the 2021 schedule and beyond. The primary objectives for this voyage were testing the Deep Corer winch stream and respool, Trawling winch calibration, CTD winch 1 & 2 calibrations, HOTS commissioning and Heave Compensation testing, and Deep Towed Camera trial and calibration. The voyage took place between November 20 and November 28, 2021, departing from Hobart (TAS) and returning to Hobart. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter east of Tasmania and around Freycinet Marine Park. The EM122 provides a 1 degree by 1 degree angular resolution. The echosounder's nominal frequency is 12 kHz. Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 182 files totalling 10.7 GB of raw data in this dataset and 182 files totalling 13.8 GB of water column data. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position. Tide corrections were applied to the processed data using RTK/GPS height and the EGM2008 geoid model in Caris. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format. Additional information regarding this dataset, including information on processing streams, 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. Processed data are SV corrected, tide not corrected and edited using CARIS version 11.3.23

This dataset is part of a larger collection

153.295,-40.52833 153.295,-43.6783 147.33,-43.6783 147.33,-40.52833 153.295,-40.52833

150.3125,-42.103315

text: westlimit=147.33; southlimit=-43.6783; eastlimit=153.295; northlimit=-40.52833; projection=WGS 84 (EPSG:4326)

Other Information
Marine National Facility home page (MNF home page)

uri : https://mnf.csiro.au/

Identifiers
  • global : d72f4449-a80f-445c-a54e-42e9c02cc5a9