Predicted Seabed Gravel, Mud, and Sand Content in Australia's Vlaming Sub-Basin

Australian Ocean Data Network provides a 2013 dataset of predicted seabed sediment composition for the Vlaming sub-basin within the Australian continental Exclusive Economic Zone. The data includes spatially continuous weight percentages for gravel, mud, and sand fractions, presented as 0.0025 decimal degree resolution raster grids. This dataset supersedes previous predictions with demonstrated improvements in accuracy, though accuracy varies with sample density and seabed complexity.

Use Cases

• Modeling benthic habitat suitability based on predicted sediment grain size distribution.
• Analyzing sediment transport and deposition patterns at a basin scale.
• Planning offshore infrastructure projects by assessing seabed substrate types.
• Creating baseline environmental maps for marine spatial planning in the Australian EEZ.

Strengths

• Spatially continuous predictions at a 0.0025 decimal degree resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Covers three key sediment fractions (gravel, mud, sand) as weight percentages from 0 to 100%.

Limitations

• Accuracy varies and artifacts occur in regions with insufficient underlying sample data.
• Intended for basin-scale use; may not be appropriate for local-scale analysis in sparsely sampled areas.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Predicted from underlying sample data, presented as interpolated raster grids.

Time Range

2013

Freshness

Last updated 2026-06-05 06:20:14.821862; freshness should be verified.

Geography

Vlaming sub-basin, Australian continental Exclusive Economic Zone (EEZ)