Trapridge Glacier Subglacial Hydromechanical Instrument Records and Model

Government of Yukon research provides instrument records and a hydromechanical model of subglacial processes beneath Trapridge Glacier, a surge-type glacier in the Yukon Territory. The study analyzes data from summer 1995, including high-pressure pulses and basal motion events, and compares four sediment flow laws in a coupled model.

Use Cases

• Analyze high-pressure pulse events in subglacial drainage systems using instrument records of pressure offsets.
• Model basal glacier sliding and sediment deformation by comparing synthetic instrument responses for four till flow laws: linear-viscous, nonlinear-viscous, nonlinear-Bingham, and Coulomb-plastic.
• Investigate the coupling between pore-water pressure fluctuations, till dilatancy, and episodes of strong basal motion from 1995 field records.

Strengths

• Research is grounded in specific field instrument records from a defined study period (summer 1995).
• Modeling framework compares four distinct till flow laws to represent sediment deformation.
• Study couples hydromechanical processes across three defined basal region types: connected soft-bed, unconnected soft-bed, and hard-bed.

Limitations

• Specific data volume (rows, columns) and sample data are unavailable for direct quantitative analysis.
• Findings are geographically specific to a single glacier (Trapridge Glacier), limiting generalizability.
• Primary data format is HTML, which may require extraction and parsing for computational use.

Provenance

Source

Government of Yukon

Collection Method

Field instrument records and laboratory modeling studies.

Time Range

Summer 1995 (for analyzed instrument records).

Freshness

null

Geography

Trapridge Glacier, St. Elias mountains, Yukon Territory, Canada.