Complete Bouguer Gravity Anomaly Grid for Onshore Australia

Australian Ocean Data Network provides a complete Bouguer gravity anomaly grid covering onshore continental Australia. It integrates over 1.39 million gravity station observations from the Australian National Gravity Database and the 2013 New South Wales Riverina survey. The underlying data was collected by government, industry, and academic sources from the 1940s to 2016.

Use Cases

• Model subsurface geological structures by analyzing spatial patterns in the complete Bouguer anomaly values.
• Identify regions of mineral exploration interest by correlating anomaly gradients with known geological features.
• Calculate terrain corrections for gravity data using the integrated offshore bathymetry and onshore topography data.
• Study continental-scale tectonic features by examining the grid's complete Bouguer anomalies across onshore Australia.

Strengths

• Integrates 1,371,998 gravity stations from the ANGD and 19,558 stations from a 2013 survey.
• Data collection spans from the 1940s to 2016, providing a long-term historical record.
• Terrain corrections applied using both offshore bathymetry and onshore topography data.

Limitations

• Grid resolution and specific row/column counts are not provided.
• Data is static and does not reflect observations made after February 2016.
• Limited to onshore continental Australia, excluding offshore and territorial island data.

Provenance

Source

Australian Ocean Data Network, incorporating data from the Australian National Gravity Database.

Collection Method

Grid derived from gravity station observations; terrain corrections calculated from bathymetry and topography data.

Time Range

1940s to 2016

Freshness

Grid generation is based on data as of February 2016; the dataset itself was last updated in April 2026.

Geography

Onshore continental Australia