Predicted Seabed Sediment Content in the Timor Sea at 10-Meter Resolution

Spatially continuous data of seabed gravel, mud, and sand content expressed as a weight percentage from 0 to 100%. The dataset covers eight areas in the Timor Sea region within the Australian continental EEZ, presented in 10 m resolution raster grids. This research is supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub and supersedes previous predictions with improved accuracy.

Use Cases

• Modeling seabed habitat suitability based on predicted sediment fractions.
• Analyzing sediment distribution patterns for geological studies based on the 10 m resolution raster data.
• Improving marine resource management plans using the updated and more accurate sediment predictions.
• Calibrating acoustic backscatter data interpretations with the provided sediment content percentages.

Strengths

• Provides predictions at a 10-meter spatial resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy, including a VEcv of 72% for sand.
• Covers eight distinct areas within the Australian continental EEZ.

Limitations

• Accuracy varies by sediment type, with a lower VEcv of 42% for gravel predictions.
• Contains artefacts such as horizontal and vertical lines resulting from noise in predictive variables like backscatter data.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia Data

Collection Method

Spatial prediction model using predictive variables, likely including backscatter data.

Freshness

Last updated 2026-04-20 02:29:22.622649; freshness should be verified.

Geography

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