Complete Bouguer Gravity Anomaly Image of Onshore Australia 2016

Approximately 1.8 million gravity observations from the Australian National Gravity Database and the 2013 New South Wales Riverina survey were used to generate this image. It shows complete Bouguer anomalies over onshore continental Australia, derived from data acquired by government, industry, and research organizations from the 1940s onward. The final product is an image-enhanced, sun-shaded hue-saturation-intensity (HSI) representation of the gravity grid.

Use Cases

• Train models for geological feature detection based on gravity anomaly patterns.
• Analyze subsurface density variations for mineral exploration based on the Bouguer anomaly data.
• Integrate with other geospatial datasets for multi-modal analysis of Australia's geology.

Strengths

• Derived from a large base of approximately 1.8 million gravity observations.
• Incorporates data from multiple sources including government, industry, and academia over a long time span.
• Includes terrain corrections calculated using both offshore bathymetry and onshore topography.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The underlying data row count and specific file sizes are unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data, incorporating data from Commonwealth, State and Territory Governments, the mining industry, universities, and research organisations.

Collection Method

Gravity observations were processed with terrain corrections and gridded to create a complete Bouguer anomaly grid, which was then image-enhanced.

Time Range

Data acquired from the 1940s to February 2016.

Freshness

Last updated 2026-04-20 01:54:50.023740; freshness should be verified.

Geography

Onshore continental Australia.