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

2018 spatially continuous predictions of seabed gravel, mud, and sand content as weight percentages for eight areas in the Timor Sea region within the Australian continental EEZ. The dataset is presented as 10-meter resolution raster grids and supersedes previous predictions with improved accuracy. This research was supported by the National Environmental Science Program (NESP) Marine Biodiversity Hub.

Use Cases

• Modeling benthic habitats based on predicted sediment composition.
• Assessing sediment transport and deposition patterns in the Timor Sea region.
• Validating and improving seabed mapping methodologies using the provided accuracy metrics.
• Informing marine spatial planning and environmental impact assessments based on sediment distribution.

Strengths

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

Limitations

• Accuracy varies significantly by sediment type, with gravel predictions (VEcv=42%) being notably less accurate.
• Contains artefacts, such as horizontal and vertical lines, resulting from noise in predictive variables like backscatter data.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

2018

Freshness

Last updated 2026-06-05 06:29:45.287288; freshness should be verified.

Geography

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