Complete Bouguer Gravity Anomaly Image of Onshore Australia, 2016

Geoscience Australia Data produced a complete Bouguer gravity anomaly colour composite image for onshore continental Australia as of 2016. The image is derived from approximately 1.39 million gravity stations in the Australian National Gravity Database and the 2013 New South Wales Riverina survey, incorporating data collected from the 1940s onward. Terrain corrections were applied using offshore bathymetry and onshore topography data, and the final grid was image-enhanced and displayed with hue-saturation-intensity and sun shading.

Use Cases

• Model subsurface geological structures based on complete Bouguer gravity anomalies.
• Support mineral and resource exploration targeting based on gravity anomaly patterns.
• Integrate with other geophysical datasets for regional geological interpretation based on the described terrain-corrected grid.

Strengths

• Derived from a substantial base of approximately 1.39 million gravity station observations.
• Incorporates data from multiple sources including Commonwealth, State, and Territory governments, industry, and academia collected over decades.
• Applies terrain corrections using both offshore bathymetry and onshore topography data.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Data freshness should be verified; the underlying observations are current as of February 2016.

Provenance

Source

Geoscience Australia Data, incorporating data from government, industry, and research organizations.

Collection Method

Gravity observations from the Australian National Gravity Database and a specific regional survey, processed with terrain corrections.

Time Range

1940s to 2016

Freshness

Last updated 2026-04-30 15:21:57.087529; underlying gravity observations are from February 2016 and earlier.

Geography

Onshore continental Australia