Seabed Gravel Content Across the Australian Continental EEZ, 2011

Spatially continuous raster data of seabed gravel content expressed as a weight percentage from 0 to 100% across the Australian continental Exclusive Economic Zone. The dataset supersedes previous predictions with demonstrated improvements in accuracy, though accuracy varies based on underlying data density and seabed complexity. It is produced by the Australian Ocean Data Network.

Use Cases

• Model seabed habitat suitability based on gravel content distribution.
• Analyze sediment transport patterns at a continental scale.
• Assess regional seabed complexity and heterogeneity.
• Plan marine infrastructure projects by evaluating substrate stability.

Strengths

• Provides a continuous raster prediction at 0.01 decimal degree resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Covers the Australian continental EEZ, including seabed surrounding Tasmania.

Limitations

• Accuracy varies and artefacts occur due to insufficient samples in some regions.
• Not appropriate for local-scale use in areas with insufficient sample density.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Prediction model based on sediment samples, superseding previous versions.

Time Range

2011

Freshness

Last updated 2026-05-05 04:41:25.004010; freshness should be verified.

Geography

Australian continental Exclusive Economic Zone, excluding certain territories and Antarctic jurisdiction.