A set of digital bathymetry, gravity, and magnetic grids for Australia's marine margins produced by the Australian Geological Survey Organisation with Desmond Fitzgerald and Associates and the Australian Hydrographic Service. The grids represent a major upgrade of marine ship-track data, integrated with satellite and onshore sources, for geological interpretation. The dataset was last updated on 2026-05-14.
Use Cases
- Modeling subsurface geology based on integrated gravity and magnetic data.
- Analyzing seafloor topography and features based on high-resolution bathymetry grids.
- Conducting resource exploration assessments based on levelled potential field data.
- Studying plate tectonics and crustal structure based on merged marine and onshore geophysical data.
Strengths
- Grid resolutions of 250 to 1000 meters provide detailed spatial coverage.
- Data represents a major upgrade from previous ship-track sources, as stated in the description.
- Integration of multiple sources, including satellite and high-resolution onshore data, likely improves coverage and accuracy.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file size are unknown, which may limit suitability assessment.
- Freshness should be verified despite the 2026 update date, as the underlying data collection period is unspecified.
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 high-resolution onshore sources.
- Time Range
- null
- Freshness
- Last updated 2026-05-14 09:10:05.214334.
- Geography
- Australia's marine margins.