Australian Rock Outcrop Probability Map at 90-Meter Resolution

1950-2021 modelled probability map of rock outcrop occurrence across Australia. The map was produced using a machine learning model trained on 14,616 rock outcrop locations and environmental covariates. It was developed by the Terrestrial Ecosystem Research Network as part of the Soil and Landscape Grid of Australia.

Use Cases

• Model soil thickness based on the probability of underlying rock outcrops.
• Assess landscape stability and erosion risk based on rock outcrop probability.
• Inform land-use planning and agricultural suitability assessments using the spatial probability data.
• Validate geological and geophysical models with a high-resolution (3 arc-second) national map.

Strengths

• High spatial resolution of 3 arc seconds (approximately 90 meters).
• Covers approximately 2 billion pixels (2007M) across Australia.
• Based on a machine learning model trained on 14,616 observed rock outcrop locations.
• Adheres to the GlobalSoilMap data standard.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery

Collection Method

Machine learning model applied to Geoscience Australia's Rock Properties database and environmental covariates.

Time Range

1950-2021

Freshness

Last updated 2026-06-10 18:56:19.229374; freshness should be verified.

Geography

Australia