Southwest Australia Bathymetry, Gravity and Magnetic Grids

A set of digital bathymetry, gravity and magnetic grids for southwest Australia (24-46S, 106-140E) produced by the Australian Geological Survey Organisation. The grids were created using all available land, marine and satellite data, processed through a network adjustment on marine ship-track data. The work was done in cooperation with Desmond Fitzgerald & Associates and the Australian Hydrographic Office.

Use Cases

• Modeling seafloor topography based on bathymetry grid data
• Analyzing crustal structure based on gravity anomaly grids
• Mapping magnetic field variations for geological interpretation
• Integrating land and marine geophysical data for regional studies

Strengths

• Grids cover a defined region (24-46S, 106-140E)
• Data integrates multiple sources: land, marine, and satellite
• Work involved cooperation with specialized organizations (AGSO, DFA, AHO)

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Freshness should be verified as the last updated date is 2026-04-16

Provenance

Source

Australian Geological Survey Organisation (AGSO)

Collection Method

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

Freshness

Last updated 2026-04-16 16:02:28.712186

Geography

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