From Geoscience Australia
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Processed multibeam backscatter data of the Lord Howe Rise

Created 16/10/2025

Updated 16/10/2025

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Geoscience Australia carried out a marine survey on Lord Howe Island shelf (NSW) in 2008 (SS062008) to map seabed bathymetry and characterise benthic environments through colocated sampling of surface sediments and infauna, rock coring, observation of benthic habitats using underwater towed video, and measurement of ocean tides and wavegenerated currents. Subbottom profile data was also collected to map sediment thickness and shelf stratigraphy. Data and samples were acquired using the National Facility Research Vessel Southern Surveyor. Bathymetric data from this survey was merged with other preexisting bathymetric data (including LADS) to generate a grid covering 1034 sq km. As part of a separate Geoscience Australia survey in 2007 (TAN0713), an oceanographic mooring was deployed on the northern edge of Lord Howe Island shelf. The mooring was recovered during the 2008 survey following a 6 month deployment. The "2461_ss062008" folder contains processed multibeam backscatter data of the Lord Howe Rise. The SIMRAD EM300 multibeam backscatter data were processed using the CMST-GA MB Process, a multibeam processing toolbox codeveloped by Geoscience Australia and Curtin University of Technology.

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Additional Info

Field Value
Title Processed multibeam backscatter data of the Lord Howe Rise
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/e9232466-531c-48f5-a0b3-3dd12df7cbcb
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        158.94,
        -31.9
      ],
      [
        159.4,
        -31.9
      ],
      [
        159.4,
        -31.3
      ],
      [
        158.94,
        -31.3
      ],
      [
        158.94,
        -31.9
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Processed multibeam backscatter data of the Lord Howe Rise". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/processed-multibeam-backscatter-data-of-the-lord-howe-rise1