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

The Timor Sea region within the Australian continental EEZ is covered by this dataset. It provides spatially continuous predictions of seabed gravel, mud, and sand content as weight percentages in 10-meter resolution raster grids. The research was supported by the National Environmental Science Program Marine Biodiversity Hub and supersedes previous predictions with improved accuracy.

Use Cases

• Modeling seabed habitat suitability based on predicted sediment composition.
• Analyzing sediment distribution patterns for marine spatial planning.
• Calibrating or validating other marine geological surveys using the provided accuracy metrics (VEcv).

Strengths

• Provides predictions at a 10-meter spatial resolution.
• Supersedes previous predictions with demonstrated improvements in accuracy.
• Reports specific validation metrics: VEcv = 71% for mud, 72% for sand, and 42% for gravel.

Limitations

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

Provenance

Source

Australian Ocean Data Network, supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub.

Collection Method

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

Time Range

2018

Freshness

Last updated 2026-06-17 01:13:08.078100; freshness should be verified.

Geography

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