A 0.5-minute arc resolution grid, equivalent to about 800 meters, details gravity anomalies across Australia. The grid combines accurate onshore gravity measurements with satellite data for offshore regions. It was published by the Australian Ocean Data Network and last updated in June 2026.
Use Cases
- Modeling crustal thickness and density variations based on Bouguer and free-air anomalies.
- Integrating gravity data with other geophysical surveys for resource exploration.
- Studying geological structures and tectonic features of the Australian region.
Strengths
- Grid cell size is 0.5 minutes of arc, providing a resolution of about 800 meters.
- Combines accurate onshore gravity measurements with satellite-derived offshore data.
- Specifies onshore anomalies use a Bouguer density of 2.67 tonnes per cubic metre.
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 the source platform.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Combination of onshore gravity measurements and satellite data.
- Freshness
- Last updated 2026-06-23 02:27:02.293330; freshness should be verified.
- Geography
- Australian region (onshore and offshore)