3,022,656 data points form the January 2002 edition of the Magnetic Anomaly Grid of the Australian Region. This grid integrates onshore and offshore magnetic anomaly data across 8S - 52S, 106E - 172E at a 1 km resolution. It was compiled by levelling marine data in three sectors and merging them with an existing onshore grid.
Use Cases
- Analyze crustal structure and geological features based on magnetic anomaly intensity.
- Map mineral resource potential based on regional magnetic signatures.
- Model tectonic plate boundaries and geological history based on integrated onshore/offshore data.
- Calibrate satellite-derived magnetic field measurements based on ground-level grid data.
Strengths
- 3,022,656 data points provide a detailed foundation for the marine grid.
- First integrated onshore/offshore magnetic anomaly grid for the complete Australian margin.
- Grid cell size of 0.01 degree (approximately 1 km) offers high spatial resolution.
Limitations
- There are mismatches at the join between onshore and offshore grids due to poor control during the merging process.
- Column-level documentation is absent; field semantics must be inferred after download.
- Last updated 2026-05-05 04:42:21.466839; freshness should be verified.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Levelled marine data from three sectors combined with an existing onshore grid.
- Time Range
- 2002
- Geography
- Australian region (8S - 52S, 106E - 172E)