Australian Bathymetry and Topography Grids at 0.0025 Degree Resolution

A geospatial web service provides bathymetric and topographic data for Australia and its Exclusive Economic Zone. The data integrates multibeam, single beam, and satellite-derived sources compiled by Geoscience Australia, with a primary grid resolution of 0.0025 degrees. It excludes marine jurisdictions offshore from the Territory of Heard and McDonald Islands and the Australian Antarctic Territory.

Use Cases

• Modeling coastal inundation and sea-level rise based on integrated bathymetry and topography.
• Creating high-resolution seabed maps for marine navigation based on multibeam and single beam data.
• Conducting geological and geophysical research using the compiled 2009 bathymetry grid.
• Analyzing continental shelf morphology by comparing direct observations with satellite-derived bathymetry.

Strengths

• Integrates multiple authoritative sources including Geoscience Australia's 2009 bathymetry compilation.
• Provides a high-resolution 0.0025-degree grid where direct bathymetric observations are dense.
• Covers a defined geographic area encompassing Australia's onshore topography and offshore EEZ.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to data_gov_au, excluding certain marine jurisdictions.

Provenance

Source

Geoscience Australia, Geographx, and other cited sources.

Collection Method

Compiled from multibeam, single beam, digitised chart, and satellite-derived data.

Time Range

Primary bathymetry data from 2009, with topography grids from 2008.

Freshness

Last updated 2026-06-04 07:46:15.737708; freshness should be verified.

Geography

Australia and its adjoining Exclusive Economic Zone.