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RV Investigator Voyage IN2016_T01 EM122 Multibeam Echosounder Data

Created 25/06/2025

Updated 25/06/2025

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This record describes multibeam echosounder data collected on RV Investigator voyage IN2016_T01, 'Continuity of Australian terranes into Zealandia: towards a geological map of the east Gondwana margin' which departed Lautoka on the 30th June 2016 and returned to Hobart on the 14th July 2016. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry, backscatter information around Lord Howe Rise and North Loyality Basin and between Lautoka and Hobart. 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 343 files totalling 10 GB of raw data in this dataset. Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in .all format is corrected for motion and position. Tide corrections were/were not applied to the processed data. Processed data has had outliers removed. Processed line data is 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.

Files and APIs

Additional Info

Field Value
Title RV Investigator Voyage IN2016_T01 EM122 Multibeam Echosounder Data
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/844a6b76-b9f5-466e-b2ff-010c2b9ba8a2
Contact Point
CSIRO Marlin Data Catalogue
data-requests-hf@csiro.au
Reference Period 07/03/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        147.15614626203197,
        -43.46500468522722
      ],
      [
        177.56630251203194,
        -43.46500468522722
      ],
      [
        177.56630251203194,
        -17.99456951910227
      ],
      [
        147.15614626203197,
        -17.99456951910227
      ],
      [
        147.15614626203197,
        -43.46500468522722
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal CSIRO Marlin

Data Source

This dataset was originally found on CSIRO Marlin "RV Investigator Voyage IN2016_T01 EM122 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-in2016_t01-em122-multibeam-echosounder-data