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 dataset integrates multibeam and single beam soundings, revised topography grids, and satellite-derived bathymetry from ETOPO models. Its 0.0025-degree resolution is supported only where direct bathymetric observations are sufficiently dense.

Use Cases

• Modeling underwater terrain for coastal hazard assessment based on integrated bathymetry and topography.
• Creating marine navigation charts based on compiled multibeam and single beam data.
• Conducting geological studies of the continental shelf based on high-resolution bathymetric observations.
• Analyzing seafloor morphology for habitat mapping based on the gridded bathymetry data.

Strengths

• Integrates data from multiple authoritative sources including Geoscience Australia and ETOPO models.
• Provides a 0.0025-degree resolution grid where direct bathymetric observations are dense.
• Covers a defined geographic area including Australia's onshore topography and offshore Exclusive Economic Zone.

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 or source bias inherent to the compilation methods described.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Primarily 2009, with source grids from 2005, 2008, and earlier.

Freshness

Last updated 2026-06-17 00:25:18.117116; freshness should be verified.

Geography

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