From Australian Oceans Data Network
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RV Investigator Voyage IN2018_V04 EM710 MKII Multibeam Echosounder Data

Created 11/04/2026

Updated 11/04/2026

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This record describes multibeam echosounder data collected on RV Investigator voyage IN2018_V04, 'Constraining external iron inputs and cycling in the southern extension of the East Australian Current' which departed Hobart on the 11 September 2018 and returned to Hobart on the 8 October 2018.

The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry, backscatter information and watercolumn backscatter data.

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 23 files totalling 11.1 GB of raw data 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/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 IN2018_V04 EM710 MKII Multibeam Echosounder Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/00a20611-8195-42de-a0d5-6fa3536b271b
Contact Point
Australian Ocean Data Network
data-requests-hf@csiro.au
Reference Period 24/01/2019
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        140.0,
        -50.0
      ],
      [
        155.0,
        -50.0
      ],
      [
        155.0,
        -34.5
      ],
      [
        140.0,
        -34.5
      ],
      [
        140.0,
        -50.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "RV Investigator Voyage IN2018_V04 EM710 MKII Multibeam Echosounder Data". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/rv-investigator-voyage-in2018_v04-em710-mkii-multibeam-echosounder-data3