Seabed Sediment Composition in the Petrel Sub-Basin, Australian EEZ 2012

The Australian Ocean Data Network provides spatially continuous data on seabed gravel, mud, and sand content in the Petrel sub-basin within the Australian continental Exclusive Economic Zone. The dataset is presented as 0.0025 decimal degree resolution raster grids and ASCII text files, with sediment fractions expressed as a weight percentage from 0 to 100%. This 2012 release supersedes previous predictions with demonstrated improvements in accuracy.

Use Cases

• Modeling seabed habitat suitability based on sediment composition fractions.
• Conducting basin-scale geological surveys using continuous raster data.
• Assessing sediment distribution for offshore infrastructure planning.
• Calibrating or validating other marine sediment datasets with improved accuracy predictions.

Strengths

• Provides continuous raster data at a 0.0025 decimal degree resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Covers three key sediment fractions (gravel, mud, sand) with weight percentages.

Limitations

• Accuracy varies and artifacts occur due to insufficient samples in some regions.
• Intended for basin-scale use and may not be appropriate for smaller-scale analysis in data-sparse areas.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

Predicted sediment content presented as interpolated raster grids.

Time Range

2012

Freshness

Last updated 2026-06 27 17:10:00.264812; freshness should be verified.

Geography

Petrel sub-basin in the Australian continental Exclusive Economic Zone (EEZ).