Upper Liard Flood Hazard Maps for 0.5%, 1%, and 5% Annual Exceedance Probabilities

Upper Liard flood hazard maps were produced by the Government of Yukon between May 2025 and March 2026. The dataset includes GIS data files, flood maps, and technical reports modeling three flood scenarios based on Annual Exceedance Probability (AEP). Resources are available under the OGL-CA-2.0 license.

Use Cases

• Model flood inundation extents based on the 0.5%, 1%, and 5% Annual Exceedance Probability scenarios described.
• Plan land use and infrastructure development using geospatial flood hazard boundaries.
• Conduct risk assessments for insurance or community resilience based on probabilistic flood maps.
• Integrate flood layer data with other geospatial datasets for comprehensive environmental analysis.

Strengths

• Includes three defined flood scenarios (0.5%, 1%, and 5% Annual Exceedance Probability) with clear probabilistic definitions.
• Provides multiple resource types, including GIS data (SHP, GDB), PDF reports, and interactive HTML maps.
• Project has a defined study period from May 2025 to March 2026.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and total dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific Upper Liard study area.

Provenance

Source

Government of Yukon

Collection Method

Flood hazard mapping study completed between May 2025 and March 2026.

Time Range

Study conducted between May 2025 and March 2026.

Freshness

Last updated 2026-06-03 15:38:21.049307; freshness should be verified.

Geography

Upper Liard region, Yukon, Canada.