Digital bathymetry, gravity, and magnetic grids for Australia's marine margin produced by the Australian Geological Survey Organisation and partners. The grids have resolutions of 250-1000 meters and represent an upgrade of marine ship-track data. Levelling techniques were used to integrate data from ship tracks, satellites, and high-resolution onshore sources.
Use Cases
- Interpret geological structures based on integrated gravity and magnetic data.
- Analyze seabed topography based on high-resolution bathymetry grids.
- Correct data crossover errors based on levelling techniques described.
- Merge marine and terrestrial data sources based on the integration process.
Strengths
- Grids have resolutions of 250-1000 meters.
- Data integrates ship-track, satellite, and high-resolution onshore sources.
- Levelling techniques correct crossover and other errors.
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; last updated date is 2026-04-16.
Provenance
- Source
- Australian Geological Survey Organisation, Desmond Fitzgerald and Associates, Australian Hydrographic Service
- Collection Method
- Levelling techniques applied to integrate ship-track, satellite, and onshore data.
- Freshness
- 2026-04-16 15:56:40.367732
- Geography
- Australia's marine margin