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High-resolution depth model for the Great Barrier Reef and Coral Sea - 100 m

Created 17/10/2025

Updated 17/10/2025

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This dataset contains bathymetry products from the compilation of all available source bathymetry data within the Great Barrier Reef into a 100 m-resolution Digital Elevation Model (DEM). The Great Barrier Reef (GBR) and Coral Sea is the largest coral reef ecosystem on Earth and stretches over 2500 km along the north-eastern Australia margin. Bathymetry mapping of this extensive reef system is vital for the protection of the GBR allowing for the safe navigation of shipping and improved environmental management. Over past ten years, deep-water multibeam surveys have revealed the highly complex shelf-edge drowned reefs and continental slope canyons. Airborne LiDAR bathymetry acquired by the Australian Hydrographic Office cover most of the GBR reefs, with coverage gaps supplemented by satellite derived bathymetry. The Geoscience Australia-developed Intertidal Elevation Model DEM improves the source data gap along Australia’s vast intertidal zone. All source bathymetry data were extensively edited as point clouds to remove noise, given a consistent WGS84 horizontal datum, and where possible, an approximate MSL vertical datum.This dataset is not to be used for navigational purposes.

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Field Value
Title High-resolution depth model for the Great Barrier Reef and Coral Sea - 100 m
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/9acb0ad1-66e5-4477-aa7e-a02ee5272493
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 01/01/1967 - 01/01/2016
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        142.0,
        -29.0
      ],
      [
        160.0,
        -29.0
      ],
      [
        160.0,
        -10.0
      ],
      [
        142.0,
        -10.0
      ],
      [
        142.0,
        -29.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "High-resolution depth model for the Great Barrier Reef and Coral Sea - 100 m". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/high-resolution-depth-model-for-the-great-barrier-reef-and-coral-sea-100-m