Darwin Harbour Seabed Habitat Maps from 2011 and 2013 Surveys

Two seabed mapping surveys in Darwin Harbour during 2011 and 2013 provide baseline data on marine habitats. The research, a collaboration between Geoscience Australia, AIMS, and the Northern Territory Government, used multibeam sonar and seabed sampling. Key outcomes include detailed bathymetry maps and a seascape classification of six habitat types.

Use Cases

• Predictive modeling of benthic biodiversity based on continuous physical variables like slope and rugosity.
• Characterizing the spatial distribution of hard and soft seabed substrates for habitat management.
• Training geospatial classifiers for seascape mapping using combinations of substrate, relief, and bedform.
• Planning future biodiversity studies by providing a physical baseline for Darwin Harbour.

Strengths

• Data collection involved high-resolution multibeam sonar bathymetry and acoustic backscatter.
• Surveys were conducted in two dedicated stages in 2011 and 2013, providing temporal context.
• Classification produced six distinct seascape classes based on statistically unique combinations of seabed properties.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Collaboration between Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS), the Department of Land Resource Management (DLRM), and the Darwin Port Corporation.

Collection Method

Multibeam survey (2011) and seabed sampling survey (2013), including sonar, video, still camera observations, and physical sediment samples.

Time Range

2011, 2013

Freshness

Last updated 2026-06-05 06:10:24.035368; freshness should be verified.

Geography

Darwin Harbour, Northern Territory, Australia