GBR30: High-Resolution Bathymetry Grid for the Great Barrier Reef Shelf

The Great Barrier Reef shelf area is covered by a high-resolution bathymetry grid with approximately 30-meter pixel spacing, known as gbr30. This dataset was developed by integrating multibeam, singlebeam, electronic chart, and airborne lidar bathymetry data from sources including the Australian Hydrographic Office and Geoscience Australia. It was used to assess deep-water habitat for crown-of-thorns starfish at 22 selected 'super spreader' and tourism reefs.

Use Cases

• Feed spatial data into a Local and Regional Decision Support Tool for Integrated Pest Management of crown-of-thorns starfish.
• Conduct hydrodynamic modelling based on the high-resolution seafloor topography.
• Assess natural hazards and plan offshore infrastructure using detailed bathymetric data.
• Support tourism and fishing activities by providing detailed maps of the reef shelf.

Strengths

• Integrates multiple authoritative bathymetry sources including Australian Hydrographic Office multibeam data.
• Provides a high-resolution grid with approximately 30-meter pixel spacing over the Great Barrier Reef shelf.
• Includes analysis of deep-water habitat for 22 selected 'super spreader' and tourism reefs.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified despite a last updated date of 2026-07-16.

Provenance

Source

Australian Ocean Data Network, aggregating data from the Australian Hydrographic Office, Geoscience Australia, and others.

Collection Method

Integration and editing of multibeam echo sounder, singlebeam echo sounder, electronic navigational chart, and airborne lidar bathymetry source data.

Freshness

Last updated 2026-07-16 02:07:11.853239

Geography

Great Barrier Reef shelf area.