Seabed Gravel Content Across the Australian Continental EEZ, 2011

Spatially continuous data of seabed gravel content expressed as a weight percentage from 0 to 100% in 0.01 decimal degree resolution raster format. The dataset covers the Australian continental EEZ, including seabed surrounding Tasmania, and supersedes previous predictions with demonstrated improvements in accuracy. It was produced by Geoscience Australia Data.

Use Cases

• Modeling seabed sediment distribution based on gravel content percentage.
• Assessing marine habitat suitability based on substrate type.
• Planning offshore infrastructure projects based on seabed composition.
• Calibrating broader oceanographic models with sediment data.

Strengths

• Spatially continuous raster data 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 based on density of underlying data and seabed complexity; artefacts occur from insufficient samples.
• Intended for national and regional scales, not local scales where sample density is insufficient.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia Data

Collection Method

Prediction model based on sample data; specific method not detailed.

Time Range

2011

Freshness

Last updated 2026-05-14 05:18:29.340311; 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.