Permafrost Landslide Morphology and Timing Following a Yukon Wildfire

Yukon slopes burned by a wildfire in July 2017 have experienced permafrost-related landslides, including active layer detachments and retrogressive thaw flow slides. The Government of Yukon study characterizes landslide timing and morphology from 2017 to 2023, investigating triggers like temperature and rainfall. Sediment deposition and water influx have caused flooding near the Dempster Highway, degrading valley-bottom permafrost.

Use Cases

• Modeling landslide initiation and progression based on wildfire disturbance and permafrost ice content.
• Analyzing the temporal evolution of slope failures based on observations from 2017 to 2023.
• Assessing infrastructure risk to highways based on sediment deposition and flooding events.
• Investigating climate change impacts on geomorphic processes based on temperature and precipitation alterations.

Strengths

• Focuses on a specific, documented wildfire event in July 2017.
• Provides multi-year observations of landslide activity from 2017 through 2023.
• Distinguishes between two specific landslide types: active layer detachments and retrogressive thaw flow slides.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to a single slope on the Dempster Highway.

Provenance

Source

Government of Yukon

Collection Method

Field study characterizing landslide timing and morphology.

Time Range

Observations from 2017 to 2023.

Freshness

Last updated 2026-04-17 15:56:34.187876; freshness should be verified.

Geography

Dempster Highway, Yukon (parts of NTS 116G/9 and 116H/12).