Complete Bouguer Gravity Anomaly Grid of Onshore Australia, 2016

Approximately 1.8 million gravity observations from the 1940s to 2016 were used to generate this grid. The data was acquired by Commonwealth, State, and Territory Governments, the mining industry, universities, and research organizations. It shows complete Bouguer anomalies over onshore continental Australia, with terrain corrections applied using offshore bathymetry and onshore topography.

Use Cases

• Model subsurface density variations based on the complete Bouguer anomaly values.
• Support mineral and resource exploration by interpreting gravity anomalies over onshore Australia.
• Integrate with other geophysical datasets for regional geological mapping based on the grid's spatial coverage.
• Study crustal architecture and tectonic features using the terrain-corrected gravity data.

Strengths

• Derived from a large volume of observations, specifically 1,371,998 stations from the national database and 19,558 from a regional survey.
• Incorporates data collected over a long time range, from the 1940s to 2016, by multiple authoritative sources.
• Applies terrain corrections using both offshore bathymetry and onshore topography data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last updated 2026-05-14 09:07:28.964317; freshness should be verified.

Provenance

Source

Geoscience Australia Data, using the Australian National Gravity Database and the 2013 New South Wales Riverina survey.

Collection Method

Grid derived from gravity station observations stored in a national database.

Time Range

1940s to 2016

Freshness

Last updated 2026-05-14 09:07:28.964317

Geography

Onshore continental Australia