A set of digital bathymetry, gravity, and magnetic grids for Australia's continental margin produced by the Australian Geological Survey Organisation in cooperation with Desmond Fitzgerald and Associates and the Australian Hydrographic Service. The grids have resolutions ranging from 250 to 1000 meters and represent a major upgrade of marine ship-track data for geological interpretation. Data from ship-tracks, satellites, and high-resolution onshore sources were integrated using levelling techniques to correct errors.
Use Cases
- Modeling subsurface geological structures based on gravity and magnetic anomaly grids.
- Analyzing seafloor topography and morphology based on bathymetry grids.
- Integrating marine and onshore geological data for regional studies based on the merged data sources.
- Developing fundamental products for resource exploration based on the upgraded potential field data.
Strengths
- Grid resolutions of 250 to 1000 meters provide detailed spatial coverage.
- Represents a major upgrade of marine ship-track data in Australian waters.
- Data integrated from multiple sources including ship-tracks, satellites, and onshore data.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Integration and levelling of marine ship-track, satellite, and high-resolution onshore data.
- Time Range
- null
- Freshness
- Last updated 2026-03-25 16:18:17.679681; freshness should be verified.
- Geography
- Australia's continental margin