Darwin Harbour Predicted Seabed Mud Content at 10-Meter Resolution

A predicted seabed mud content grid for the Darwin and Bynoe Harbour regions in northern Australia. The dataset was created by Geoscience Australia, the Australian Institute of Marine Science, and the Northern Territory Government's Department of Environment and Natural Resources, synthesizing survey data from 2011 to 2017. It provides spatially continuous predictions of percent mud content in a 10-meter resolution raster format.

Use Cases

• Modeling seabed habitat types based on sediment composition.
• Informing marine resource management decisions using baseline environmental data.
• Assessing sediment distribution patterns from high-resolution multibeam sonar data.
• Comparing predictive accuracy of sediment mapping methodologies.

Strengths

• Predictive accuracy is described as very high, with a VEcv of 62% for mud.
• Predictive accuracy was increased by 198.3% for mud compared to a commonly used interpolation method.
• Data is derived from 395 samples and nine environmental variables from high-resolution surveys.
• Dataset supersedes previous predictions with demonstrated improvements.

Limitations

• Absences in predictions occur due to non-availability of associated predictive variables.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia (GA), Australian Institute of Marine Science (AIMS), Northern Territory Government Department of Environment and Natural Resources (NTG-DENR).

Collection Method

Predictions derived from a compilation of multiple seabed surveys conducted between 2011 and 2017, using nine environmental variables from multibeam sonar data.

Time Range

Survey data from 2011 to 2017.

Freshness

Last updated 2026-06-23 05:33:22.897374; freshness should be verified.

Geography

Greater Darwin Harbour and Bynoe Harbour region, northern Australian marine margin.