Complete Bouguer Gravity Anomaly Grid of Onshore Australia, 2016

A geospatial grid showing complete Bouguer gravity anomalies over onshore continental Australia. It was generated from approximately 1.8 million gravity observations, including 1,371,998 stations from the Australian National Gravity Database and 19,558 from the 2013 Riverina survey. The underlying data was acquired by government, industry, and research entities from the 1940s onward.

Use Cases

• Modeling subsurface density variations based on complete Bouguer anomaly values.
• Supporting mineral and resource exploration by identifying geological structures.
• Integrating with other geophysical datasets for regional geological studies.
• Calculating terrain corrections using the described bathymetry and topography data.

Strengths

• Derived from a large base of approximately 1.8 million gravity observations.
• Incorporates data from multiple sources (government, industry, academia) collected over decades.
• Includes terrain corrections calculated from both offshore bathymetry and onshore topography.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution of the grid are unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the aggregation of historical surveys.

Provenance

Source

Australian Ocean Data Network, using data from the Australian National Gravity Database and the 2013 New South Wales Riverina survey.

Collection Method

Grid derived from gravity station observations, with applied terrain corrections.

Time Range

Data acquired from the 1940s to 2016.

Freshness

Last updated 2026-06-04 06:33:56.229318; freshness should be verified.

Geography

Onshore continental Australia.