Seabed Sediment Composition in Australia's Browse Region

Spatially continuous data on seabed gravel, mud, and sand content expressed as weight percentages across the Browse region within the Australian continental Exclusive Economic Zone. The dataset is provided as 0.0025 decimal degree resolution raster grids and supersedes previous predictions with improved accuracy. It was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Model sediment transport dynamics using the gravel, mud, and sand percentage raster layers.
• Predict benthic habitat suitability by analyzing the spatial distribution of mud content.
• Assess geological basin characteristics through the continuous sand fraction data.
• Validate regional seabed models by comparing the 0.0025 dd resolution predictions with local samples.

Strengths

• 0.0025 decimal degree spatial resolution for detailed basin-scale analysis.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Provides three continuous sediment fraction layers (gravel, mud, sand) as weight percentages.

Limitations

• Contains artefacts in regions with insufficient underlying sample density.
• Accuracy varies with seabed complexity and may not be suitable for local-scale analysis.
• Intended for basin-scale use; local variation may not be detected.

Provenance

Source

Australian Ocean Data Network

Collection Method

Predictive modeling based on seabed samples, presented as raster grids.

Time Range

null

Freshness

Updated in April 2026, superseding previous versions.

Geography

Browse region within the Australian continental Exclusive Economic Zone (EEZ).