Seabed Gravel Content Across the Australian Continental EEZ, 2011

2011 spatially continuous data of seabed gravel content expressed as a weight percentage from 0 to 100%. The dataset covers the Australian continental EEZ at 0.01 decimal degree resolution and supersedes previous predictions with improved accuracy. It was provided by the Australian Ocean Data Network.

Use Cases

• Model seabed sediment distribution based on gravel weight percentage.
• Assess habitat suitability for benthic organisms based on substrate composition.
• Plan marine infrastructure projects based on seabed substrate properties.
• Validate regional sediment transport models based on gravel content data.

Strengths

• Spatially continuous coverage of the Australian continental EEZ, including Tasmania.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Data is presented in a 0.01 decimal degree resolution raster format.

Limitations

• Accuracy varies based on underlying data density and seabed complexity; artefacts occur in regions with insufficient samples.
• Dataset may not be appropriate for local-scale analysis where sample density is insufficient.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Prediction based on underlying sample data; supersedes previous predictions.

Time Range

2011

Freshness

Last updated 2026-06-23 03:55:55.320632; freshness should be verified.

Geography

Australian continental Exclusive Economic Zone (EEZ), including seabed surrounding Tasmania. Excludes Macquarie Island, Norfolk Island, Christmas Island, Cocos (Keeling) Islands, Heard and McDonald Islands, and the Australian Antarctic Territory.