NSW Seabed Landforms Derived from Marine Lidar Data 2022

Seabed landform features classified from the New South Wales statewide marine lidar dataset acquired in 2018. The dataset covers 4060 km2 of the NSW coast, extending from the shoreline to a 50-meter depth, and was created by the NSW Department of Climate Change, Energy, the Environment and Water using a publicly available ArcGIS toolset. It includes classified features such as reefs, plains, peaks, scarps, depressions, and channels.

Use Cases

• Map the distribution of submerged reef habitats based on classified landform features.
• Analyze coastal geomorphology and seabed structure based on features like scarps, depressions, and channels.
• Support marine spatial planning and environmental management based on the extent and classification of seabed landforms.
• Model coastal erosion or sediment transport patterns based on the shape and structure of reef outcrops.

Strengths

• Covers a substantial 4060 km2 area of the NSW coastal and nearshore environment.
• Based on a 2018 statewide marine lidar survey, providing a consistent data source.
• Classified using a publicly documented and peer-reviewed methodology (Linklater et al. 2023).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

NSW Department of Climate Change, Energy, the Environment and Water

Collection Method

Features were classified from marine lidar data using the Seabed Landforms Classification Toolset for ArcGIS.

Time Range

Underlying lidar data acquired in 2018.

Freshness

Last updated 2026-05-12 17:41:24.348646; freshness should be verified.

Geography

New South Wales, Australia coastline, extending from 0 m AHD to 50 m depth, up to 9 km offshore.