Gravity Field of Offshore Australia with Regional Provinces

The Australian Ocean Data Network provides a gravity field dataset for offshore Australia. It divides the free-air anomaly field into about fifty regional provinces characterized by trend, level, or disturbance, and discusses them in relation to structural and bathymetric features. The dataset uses Bouguer anomalies as a guide to crustal thickness variations and covers features from continental shelves to abyssal plains.

Use Cases

• Modeling crustal thickness variations based on Bouguer anomaly data.
• Analyzing isostatic equilibrium of continental shelves and plateaus based on regional free-air anomaly values.
• Correlating structural elements with gravity provinces on the continental shelf.
• Studying the gravity edge effect at continental slopes based on defined anomaly ridges and troughs.

Strengths

• Covers about fifty distinct regional gravity provinces.
• Discusses correlations with structural and bathymetric features across multiple regions.
• Includes analysis of crustal thickness from Bouguer anomalies and specific edge effects reaching ±70 mGal.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing solely on offshore Australia.

Provenance

Source

Australian Ocean Data Network

Freshness

Last updated 2026-06-04 07:55:17.693078; freshness should be verified.

Geography

Offshore Australia