5028 Block 1 (Southwest) Grid of Total Magnetic Intensity (TMI) at 20m Resolution

A geospatial grid of total magnetic intensity (TMI) data covering the 5028 Block 1 (Southwest) region. The data, acquired in 2024 by the WA Government, consists of 415,090 line-kilometres of survey data. The processed grid has a cell size of approximately 20 meters, with values in nanoTesla (nT), and was quality-checked by Geoscience Australia geophysicists.

Use Cases

• Model subsurface geological structures based on magnetic anomaly patterns.
• Identify potential mineral deposits based on magnetic susceptibility contrasts.
• Train ML models for geophysical feature detection using the 20m resolution grid.
• Integrate magnetic data with other geospatial layers for regional resource assessment.

Strengths

• Data is derived from a substantial 415,090 line-kilometre aerial survey.
• Grid has a high spatial resolution of approximately 20 meters per cell.
• Processing includes standard reductions to isolate the rock response, and quality was checked by Geoscience Australia geophysicists.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total file size are unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data, via data_gov_au.

Collection Method

Aerial survey acquired by the WA Government in 2024, processed with standard reductions.

Time Range

2024

Freshness

Last updated 2026-05-14 09:10:27.595963; freshness should be verified.

Geography

5028 Block 1 (Southwest) region, Australia.