National Gravity Compilation 2019 includes airborne (CSCBA 1VD)

Gravity data processed to reveal sub-surface geological structure by measuring density changes in rocks. This 2019 national compilation includes the first vertical derivative of the complete spherical cap Bouguer anomaly grid for Australia, with a cell size of approximately 435 meters. The data was acquired under project 202008, processed via Fast Fourier Transform, and quality-checked by Geoscience Australia geophysicists.

Use Cases

• Modeling subsurface density variations based on processed gravity anomalies.
• Interpreting geological structure for mineral or resource exploration based on the Bouguer anomaly grid.
• Conducting geophysical research on the Australian continent using a national-scale gravity compilation.

Strengths

• Data underwent quality checks by Geoscience Australia geophysicists to ensure it is fit-for-purpose.
• Grid has a defined spatial resolution of 0.00417 degrees (approximately 435 meters).
• Processing included a Fast Fourier Transform to calculate the first vertical derivative.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network, likely originating from Geoscience Australia.

Collection Method

Airborne gravity survey acquired and processed via standard geophysical methods and Fast Fourier Transform.

Time Range

2019

Freshness

Last updated 2026-06-05 07:01:42.277869; freshness should be verified.

Geography

Australia