Seabed Gravel Content Across the Australian Continental EEZ, 2011

Australian continental EEZ, including seabed surrounding Tasmania, is covered by this spatially continuous raster dataset. It provides seabed gravel content expressed as a weight percentage from 0 to 100% at 0.01 decimal degree resolution. The dataset supersedes previous predictions with improved accuracy, though accuracy varies based on underlying data density and seabed complexity.

Use Cases

• Modeling seabed habitat suitability based on sediment gravel content mentioned in the description.
• Regional marine spatial planning based on continuous sediment fraction data.
• Assessing sediment transport and erosion patterns based on predicted gravel distribution.
• Validating broader oceanographic models with seabed composition data.

Strengths

• Spatially continuous coverage of the Australian continental EEZ at 0.01 decimal degree resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Provides gravel content as a weight percentage on a standardized 0-100% scale.

Limitations

• Artefacts occur due to insufficient samples in relevant regions.
• May not be appropriate for local-scale use where sample density is insufficient.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Geoscience Australia Data

Collection Method

Likely contains predictions and interpolations from seabed sediment samples.

Time Range

2011

Freshness

Last updated 2026-04-20 03:35:32.879257; freshness should be verified.

Geography

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