Western Australia Onshore and Marine Magnetic Intensity Grid at 0.0025-Degree Resolution

Total magnetic intensity data for Western Australia measures variations in the Earth's magnetic field to reveal sub-surface geology. The grid has a cell size of 0.0025 degrees (approximately 266 meters) and units are in nanoTesla. Data was acquired in 2005 by the WA Government and processed by Geoscience Australia geophysicists.

Use Cases

• Model geological structures based on magnetic anomaly patterns.
• Support mineral exploration targeting based on subsurface rock susceptibility.
• Integrate with other geophysical datasets for regional geological mapping.

Strengths

• Data quality is checked by Geoscience Australia geophysicists to ensure it is fit-for-purpose.
• Grid has a defined spatial resolution of 0.0025 degrees (approximately 266 meters).
• Covers both onshore and marine areas of Western Australia.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The description states the acquisition consisted of 'None line-kilometres' and 'Nonem' line spacing, indicating key acquisition parameters are missing from the metadata.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network, Geoscience Australia

Collection Method

Acquired via airborne or marine magnetic survey.

Time Range

Data acquired in 2005.

Freshness

Last updated 2026-06-05 06:52:30.552983; freshness should be verified.

Geography

Western Australia, including onshore and marine areas.