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RV Investigator Voyage IN2020_V10 EM710 MKII Multibeam Echosounder Data

Created 19/09/2025

Updated 19/09/2025

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This record describes multibeam echosounder data collected on RV Investigator voyage IN2020_V10, titled MNF Trials, Storm Bay Modelling and Information System Data Collection, and Bathymetric and Benthic Habitat mapping of the Huon AMP. The voyage took place from 11-22 November 2021 departing from Hobart (TAS) and returning to Hobart (TAS). The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter through the shelf-break region and seamount clusters within Huon AMP. The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz. Data are stored in .all raw format for bathymetry and backscatter and .wcd format for watercolumn backscatter at CSIRO. There are:

196 raw .all files totalling 4.32GB in this dataset. 25 raw .wcd files totalling 49.6GB in this dataset

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 not applied to the processed data. 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 further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2020_V10 EM710 MKII Multibeam Echosounder Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/748c5867-0147-4fb4-91a7-91415a9af68e
Contact Point
CSIRO Marlin Data Catalogue
data-requests-hf@csiro.au
Reference Period 19/07/2021
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.0,
        -45.0
      ],
      [
        149.0,
        -45.0
      ],
      [
        149.0,
        -42.7
      ],
      [
        146.0,
        -42.7
      ],
      [
        146.0,
        -45.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2020_V10 EM710 MKII Multibeam Echosounder Data". Please visit the source to access the original metadata of the dataset:
https://marlin.csiro.au/geonetwork/srv/eng/csw/dataset/rv-investigator-voyage-in2020_v10-em710-mkii-multibeam-echosounder-data