NESP TWQ 5.10: High-Resolution Gully Maps from LiDAR for the Great Barrier Reef

At least 40% of accelerated erosion affecting the Great Barrier Reef's water quality originates from gullies. This dataset contains automated high-resolution gully maps and classifications derived from LiDAR Digital Elevation Models, developed under the NESP TWQ Project 5.10 in 2019-2020. The Australian Ocean Data Network hosts the data, which includes PNG and HTML files.

Use Cases

• Prioritizing gully rehabilitation sites based on automated location and attribute extraction.
• Grouping gullies into similar types for targeted management strategies based on key attributes.
• Improving catchment modeling inputs with high-resolution landscape-scale gully data.
• Designing erosion control solutions based on quantified gully attributes.

Strengths

• Data is derived from LiDAR, which is described as the best way to accurately map gullies at a landscape scale.
• Focuses on a critical environmental issue, with gully erosion contributing to at least 40% of accelerated erosion affecting the Great Barrier Reef.
• Project developed automated tools for extraction, suggesting potential for consistent processing of large LiDAR volumes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Great Barrier Reef focus.

Provenance

Source

Australian Ocean Data Network

Collection Method

Automated extraction from LiDAR Digital Elevation Models (DEMs).

Time Range

2019-2020

Freshness

Last updated 2026-07-13 14:51:23.497333; freshness should be verified.

Geography

Great Barrier Reef catchment areas