Marine Bathymetry Gravity And Magnetic Grids For Australia's Margin

A set of digital grids for Australia's margin provides bathymetry, gravity, and magnetic data at resolutions of 250-1000 meters. Produced by the Australian Geological Survey Organisation in cooperation with Desmond Fitzgerald and Associates and the Australian Hydrographic Service, the dataset integrates and levels marine ship-track data with satellite and onshore sources for geological interpretation.

Use Cases

• Merge bathymetry and gravity grids to model subsurface geological structures along Australia's continental margin.
• Analyze magnetic anomaly patterns from the magnetic grids for mineral exploration targeting.
• Use the 250-1000m resolution bathymetry grids for high-resolution seafloor morphology and habitat studies.
• Apply levelling techniques demonstrated in this dataset to correct crossover errors in other marine geophysical surveys.

Strengths

• Grids integrate data from multiple sources including marine ship-tracks, satellite, and high-resolution onshore data.
• Data represents a major upgrade of marine potential field and bathymetry data in Australian waters.
• Resolutions range from 250 to 1000 meters, providing detailed coverage.

Limitations

• Specific row/column counts, file sizes, and sample data are unavailable for assessing dataset scale.
• Primary format is HTML, which may not be directly usable for analysis without extracting underlying grid data.

Provenance

Source

Australian Geological Survey Organisation, Desmond Fitzgerald and Associates, Australian Hydrographic Service.

Collection Method

Integration and levelling of marine ship-track data merged with satellite and onshore sources.

Time Range

null

Freshness

Last updated March 2026.

Geography

Australia's maritime margin and waters.