Seabed Sediment Composition in Australia's Petrel Sub-Basin, 2012

Spatially continuous raster grids predict seabed gravel, mud, and sand content as weight percentages across Australia's Petrel sub-basin. The 0.0025 decimal degree resolution dataset supersedes previous predictions with demonstrated improvements in accuracy, though accuracy varies with sample density. This dataset is provided by the Australian Ocean Data Network and was last updated in 2026.

Use Cases

• Map sediment distribution patterns based on gravel, mud, and sand content percentages.
• Model seabed habitat suitability based on sediment composition data.
• Plan offshore infrastructure projects based on basin-scale seabed substrate predictions.
• Validate or update regional sediment transport models based on continuous spatial data.

Strengths

• Provides continuous spatial predictions at 0.0025 decimal degree resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Covers the entire Petrel sub-basin within the Australian continental EEZ.

Limitations

• Accuracy varies based on underlying data density and seabed complexity; artefacts occur in regions with insufficient samples.
• Intended for basin-scale use and may not be appropriate for smaller-scale analysis in undersampled areas.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Prediction and interpolation of sediment samples, presented as raster grids.

Time Range

2012

Freshness

Last updated 2026-06-16 17:41:23.175529; freshness should be verified.

Geography

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