Complete Bouguer Gravity Anomaly Image of Onshore Australia 2016

Onshore Australia is covered by a gravity anomaly image derived from approximately 1.8 million gravity observations. The final product integrates 1,371,998 stations from the national database and 19,558 from a regional survey, processed with terrain corrections and displayed as a hue-saturation-intensity image. This dataset represents gravity data collected by government, industry, and academia from the 1940s to 2016.

Use Cases

• Analyze complete Bouguer anomalies to model subsurface geological structures across onshore Australia.
• Apply terrain corrections derived from bathymetry and topography data to refine regional gravity interpretations.
• Process hue-saturation-intensity (HSI) enhanced imagery for visual identification of gravity anomaly patterns.
• Integrate data from the Australian National Gravity Database and the Riverina survey for continental-scale geophysical studies.

Strengths

• Derived from approximately 1.8 million gravity observations.
• Integrates 1,371,998 stations from a national database with 19,558 from a targeted regional survey.
• Data collection spans from the 1940s to 2016, providing historical depth.
• Includes terrain corrections calculated from offshore bathymetry and onshore topography.

Limitations

• Data is a processed, static image (ZIP/PDF), not the raw point observations or a machine-readable grid.
• The underlying observations are from February 2016, with no updates indicated.
• Lacks tabular structure or columnar data for direct quantitative analysis without image processing.

Provenance

Source

Geoscience Australia Data.

Collection Method

Gravity observations from the Australian National Gravity Database and the 2013 New South Wales Riverina survey, processed with terrain corrections and image enhancement.

Time Range

1940s to 2016.

Freshness

null

Geography

Onshore continental Australia.