Australian Bathymetry and Topography Grid at 0.0025 Degree Resolution

Geoscience Australia compiled this 2009 bathymetry and topography grid for Australia and its Exclusive Economic Zone. The 0.0025-degree resolution grid integrates multibeam, single beam, digitized chart, and satellite-derived bathymetry, alongside revised topography data from Australia, New Zealand, and SRTM DEM sources. It excludes data from marine jurisdictions offshore from Heard and McDonald Islands and the Australian Antarctic Territory.

Use Cases

• Modeling coastal erosion and inundation based on integrated onshore and offshore elevation data.
• Analyzing seafloor morphology for habitat mapping based on multibeam and single beam bathymetry observations.
• Creating regional ocean circulation models based on high-resolution bathymetric grids.
• Studying continental shelf geomorphology based on the compiled 2009 bathymetry data.

Strengths

• Integrates multiple authoritative data sources, including Geoscience Australia's 2009 bathymetry compilation and the revised 2008 Australian topography grid.
• Provides a high 0.0025-degree resolution where direct bathymetric observations like swath data are sufficiently dense.
• Covers a defined spatial area encompassing Australia's topography and the bathymetry of its adjoining Exclusive Economic Zone.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-06-23 01:50:02.342383; freshness should be verified.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network, Geoscience Australia

Collection Method

Compiled from multibeam, single beam, digitized chart, and satellite-derived (ETOPO) bathymetry, combined with topography grids.

Time Range

Bathymetry data compiled in 2009; source topography grids from 2008.

Freshness

Last updated 2026-06-23 01:50:02.342383; update frequency is unknown.

Geography

Topography of Australia and bathymetry of the adjoining Australian Exclusive Economic Zone, excluding Heard and McDonald Islands and Australian Antarctic Territory marine jurisdictions.