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The Creation of High Resolution Bathymetry Grids for the Lord Howe Island Region

Created 07/03/2026

Updated 07/03/2026

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Detailed seabed bathymetric data are needed to better understand our marine environment because models of seabed morphology derived from these data provide useful insights into physical processes that act on the seabed and the location of different types of seabed habitats. Lord Howe Island lies approximately 450km off the northern coast of New South Wales. It is a volcanic island with a fringing coral reef on its western shore, and a shallow (20 - 120 m) shelf surrounds the island. Bathymetry data are required in this area to help identify major seabed processes and habitats, especially relict reef structures, and to measure how well physical seabed properties act as surrogates of patterns of biodiversity on this mid-ocean carbonate shelf. The data are also required to enable modelling of tsunami as they interact with the shelf around the island and the coast.

This report describes the methodology employed in creating detailed bathymetry data grids of the Lord Howe Island region. It covers data collection, quality control and gridding. Descriptions are provided of each dataset employed, the methods used to integrate the different datasets and the attributes of the new bathymetry models.

Four new bathymetry grids are presented, including grids that integrate bathymetry with the island's topography.

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Additional Info

Field Value
Title The Creation of High Resolution Bathymetry Grids for the Lord Howe Island Region
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/1516baa4-862f-4ecf-8c46-bea1826622af
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 15/10/2025
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        158.15,
        -32.85
      ],
      [
        160.35,
        -32.85
      ],
      [
        160.35,
        -30.65
      ],
      [
        158.15,
        -30.65
      ],
      [
        158.15,
        -32.85
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The Creation of High Resolution Bathymetry Grids for the Lord Howe Island Region". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-creation-of-high-resolution-bathymetry-grids-for-the-lord-howe-island-region8