Southwest Australia Geophysical Grids for Bathymetry, Gravity, and Magnetic Data

AGSO produced a set of digital grids for the southwest quadrant of Australia (24-46S, 106-140E). The dataset integrates land, marine, and satellite data, with bathymetric input from the Australian Hydrographic Office. Results were obtained by performing a network adjustment on marine ship-track data.

Use Cases

• Modeling seafloor topography based on integrated bathymetric data
• Analyzing crustal density variations based on gravity anomaly grids
• Mapping geological structures based on magnetic field data
• Conducting regional geophysical studies based on combined land, marine, and satellite data

Strengths

• Data integrates multiple sources: land, marine, and satellite data
• Coverage spans a defined quadrant: 24-46S, 106 140E
• Produced in cooperation with Desmond Fitzgerald & Associates and the Australian Hydrographic Office

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 the specific survey region

Provenance

Source

Australian Geological Survey Organisation (AGSO)

Collection Method

Network adjustment on marine ship-track data combined with onshore and satellite-derived data

Time Range

null

Freshness

Last updated 2026-04-10 20:25:46.960840; freshness should be verified

Geography

Southwest quadrant of Australia (24-46S, 106-140E)