Discovery Ridge Tree Ring Chronology for Climate Reconstruction

Tree ring width measurements from Discovery Ridge in Canada's Northwest Territories provide a 582-year climate proxy record. The NOAA National Centers for Environmental Information archives this paleoclimatology study for climate reconstruction research. Data coverage spans from 541 to -41 calendar years before present.

Use Cases

• Reconstruct past temperature or precipitation anomalies by calibrating tree ring width measurements against modern instrumental records.
• Analyze the frequency of climatic extremes, such as droughts or cold periods, within the 582-year chronology.
• Compare the Discovery Ridge chronology with other regional tree ring series to identify broad-scale climate patterns.
• Validate or constrain outputs from climate model simulations of past centuries using the proxy data.

Strengths

• 582-year continuous chronology providing long-term climate context
• Data archived and standardized by NOAA's World Data Service for Paleoclimatology

Limitations

• Single geographic site limits spatial representativeness for regional analysis
• Record ends in 1991, lacking recent decades for contemporary climate comparison
• Proxy relationship between ring width and specific climate variables requires calibration and may contain non-climatic noise

Provenance

Source

NOAA National Centers for Environmental Information (NCEI) / World Data Service for Paleoclimatology

Collection Method

Tree ring core sampling and width measurement (dendrochronology)

Time Range

541 to -41 calendar years BP

Freshness

1991-01-01

Geography

Discovery Ridge, Northwest Territories, Canada