206,344 cubic meters of material were deposited by a high-magnitude debris flow in July-August 2000 in southwest Yukon. The event, with a peak discharge on the order of 1000 cubic meters per second, is the largest reported in the St. Elias Mountains in the last 100 years. The dataset was published by the Government of Yukon and includes tree-ring analysis and precipitation records.
Use Cases
- Model debris flow magnitude and frequency based on the reported volume and discharge.
- Analyze precipitation triggers for slope failure based on the August 2000 rainfall record.
- Study geological controls on debris flow initiation based on the described headscarp alignment with a syncline.
- Calibrate regional hazard assessments based on the event's classification as the largest in 100 years.
- Validate tree-ring dating methods for geomorphic events based on the analysis of two killed white spruce.
Strengths
- Volume and peak discharge estimates are provided (206,344 m³, ~1000 m³/s).
- Event timing is precisely dated to July-August 2000 via tree-ring analysis.
- Geological and meteorological context for the slope failure is described.
- The dataset is sourced from an authoritative government organization.
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, remote case study.
Provenance
- Source
- Government of Yukon
- Collection Method
- Field study and tree-ring analysis.
- Time Range
- Event occurred in 2000; analysis references precipitation records from 1967-2003.
- Freshness
- Last updated 2026-04-17 15:58:01.183411; freshness should be verified.
- Geography
- Donjek River valley, southwest Yukon, Canada.