ACT Current Erosion Hazards for Hydrogeological Landscape Units

Digital spatial data for the Australian Capital Territory (ACT) captured at 1:25,000 scale. The dataset contains hazard ratings for land salinity, stream salt load, and stream EC, as well as overall salinity hazard for each Hydrogeological Landscape (HGL) unit. It was developed by Rob Muller, Wayne Cook, Allan Nicholson, and Alie Cowood to assist in land management decision making.

Use Cases

• Assessing land salinity hazard ratings for specific Hydrogeological Landscape (HGL) units.
• Evaluating stream salt load and electrical conductivity (EC) hazards for water quality management.
• Selecting appropriate salinity management strategies based on landscape function descriptions.
• Understanding salt stores and mobilization pathways across different landscape areas.

Strengths

• Captured at a 1:25,000 scale, suitable for paddock-scale assessment.
• Integrates multiple information sources, including soil landscape maps, hydrogeological data, and salinity occurrence maps.
• Provides hyperlinks to full management descriptions for each HGL unit.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The ACT Government disclaimer states the map may not be free from error.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

ACT Government Geospatial Data Catalogue (ACTmapi)

Collection Method

Developed by integrating causative factors such as geology, soils, slope, regolith thickness, and climate.

Freshness

Last updated 2026-04-04 03:01:37.840003; freshness should be verified.

Geography

Australian Capital Territory (ACT), mapped in GDA2020 MGA Zone 55s.