Australian Bathymetry and Topography Grid at 0.0025 Degree Resolution

Geoscience Australia compiled bathymetry and topography data for Australia and its Exclusive Economic Zone. The 2009 bathymetry data integrates multibeam, single beam, and satellite-derived sources, while onshore topography is based on a revised 0.0025-degree grid. The service excludes data from the marine jurisdictions offshore from the Territory of Heard and McDonald Islands and the Australian Antarctic Territory.

Use Cases

• Modeling seafloor terrain based on integrated multibeam and single beam bathymetry data.
• Analyzing coastal elevation changes using the revised 0.0025-degree topography grid.
• Creating regional maps of Australia's Exclusive Economic Zone based on the compiled geospatial data.

Strengths

• Integrates multiple data sources including 2009 multibeam and single beam bathymetry.
• Provides a high 0.0025-degree resolution grid where direct bathymetric observations are dense.
• Onshore topography is based on a specific revised 0.0025-degree grid from Geoscience Australia.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, excluding some Australian marine jurisdictions.

Provenance

Source

Australian Ocean Data Network

Collection Method

Compiled by Geoscience Australia from multibeam, single beam, and satellite-derived sources.

Time Range

Bathymetry data compiled in 2009; topographic grids referenced from 2005 and 2008.

Freshness

Last updated 2026-06-27 20:33:17.199865; freshness should be verified.

Geography

Topography of Australia and bathymetry of the adjoining Australian Exclusive Economic Zone.