Complete Bouguer Gravity Anomaly Image of Onshore Australia, 2016

1,391,556 gravity stations from the Australian National Gravity Database and a 2013 Riverina survey were used to generate this image. The product shows complete Bouguer anomalies over onshore continental Australia, derived from data acquired by government, industry, and academia from the 1940s onward. Terrain corrections were applied using offshore bathymetry and onshore topography data, and the final grid is displayed as a hue-saturation-intensity image with sun shading.

Use Cases

• Model subsurface geology and mineral deposits based on gravity anomaly patterns.
• Train machine learning models for geological feature detection based on the enhanced HSI image.
• Integrate with other geophysical datasets for regional geological analysis based on the continental coverage.
• Study long-term changes in gravity data collection methods based on the multi-decade source history.

Strengths

• Derived from a substantial base of over 1.8 million gravity observations.
• Incorporates data from multiple sources including government, industry, and academia.
• Applies terrain corrections using both offshore bathymetry and onshore topography.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic or temporal bias inherent to data_gov_au.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network, using the Australian National Gravity Database.

Collection Method

Gravity observations acquired by Commonwealth, State, and Territory Governments, the mining industry, universities, and research organizations.

Time Range

1940s to 2016.

Freshness

Last updated 2026-04-10 18:21:28.615671; freshness should be verified.

Geography

Onshore continental Australia.