Great Barrier Reef and Coral Sea bathymetry

This dataset provides the high-resolution bathymetry model of the Great Barrier Reef and Coral Sea, called gbr100, an output of Project 3D-GBR. The ~100 metre-resolution gridded bathymetry dataset covers an area of about 3,000,000 km2, from the Gulf of Papua to northern New South Wales, and easterly into the deep Coral Sea. This page provides the data in a range of formats for public download.   

Copyright Notice


Additional content (xyz data, ESRI, GMT, Caris grids, Google Earth kml) can be obtained at the Geoscience Australia ecat website. Users can also access the AusSeabed Marine Data Portal to do Clip, Zip and Ship on the equivalent 'Great Barrier Reef Bathymetry 2020 - 100m' layer within Bathymetry-Compilations.

If using the data for publications, please quote the following reference:

  • Beaman, R.J., 2010. Project 3D-GBR: A high-resolution depth model for the Great Barrier Reef and Coral Sea. Marine and Tropical Sciences Research Facility (MTSRF) Project 2.5i.1a Final Report, MTSRF, Cairns, Australia, pp. 13 plus Appendix 1. (internal link to report)

Seminar presented to the SSSI Hydrography Commission 1 March 2018:

Poster presented at Australian Marine Sciences Association conference 3-7 July 2011:

Gallery images

  • NW Qld Plateau
  • Tasmantid Seamounts
  • SE Qld Plateau
  • Offshore Townsville
  • Offshore Bowen
  • Offshore Brisbane
  • Offshore Bundaberg
  • Offshore Cairns
  • Offshore Cape York
  • Offshore Cooktown
  • Offshore Gladstone
  • Offshore Mackay



Google Earth

gbrbathy google


GeoTIFF hillshade

gbrbathy hillshade


Grid data (V6 - 10 November 2020)

gbrbathy dem


Line data

gbrbathy line s