ACT Tree Canopy Cover Polygons Derived from 2020 LiDAR

ACT Government Geospatial Data Catalogue provides district-based canopy cover polygons for the Australian Capital Territory. The data represents vegetation above 3 meters, derived from LiDAR acquired in April/May 2020 at 1-meter resolution. Processing involved creating a Canopy Height Model and removing non-vegetative surfaces using satellite imagery.

Use Cases

• Calculate urban canopy coverage for climate resilience planning based on the 1-meter resolution polygons.
• Model urban cooling effects based on the high-resolution vegetation cover data.
• Assess changes in urban habitat connectivity based on the delineated canopy areas.
• Integrate canopy data with building footprints for urban infrastructure planning, as mentioned in the methodology.

Strengths

• Data is derived from LiDAR acquired at an average resolution of 12ppm in April/May 2020.
• Canopy cover is defined for vegetation above 3 meters, providing a clear threshold.
• Methodology includes removal of spurious canopy from building roofs and erroneous non-vegetative surfaces.

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.
• The dataset may draw slowly or appear to miss some trees due to its complexity and high resolution, as noted in the warning.

Provenance

Source

ACT Government Geospatial Data Catalogue (ACTmapi)

Collection Method

LiDAR data acquired by Aerometrex, processed to create a Canopy Height Model and converted to vector polygons.

Time Range

April/May 2020

Freshness

Last updated 2026-04-04 03:03:38.794251; freshness should be verified.

Geography

Australian Capital Territory