Lac Duparquet Tree Ring Chronology from 764 to 37 BCE

Tree ring width measurements from Quebec, Canada provide a climate proxy record spanning 801 years from 764 to 37 BCE. The dataset is archived by NOAA's World Data Service for Paleoclimatology and was last updated in 1987.

Use Cases

• Reconstruct past temperature or precipitation anomalies by calibrating tree ring width series against modern instrumental records.
• Analyze the frequency of extreme growth suppression events in the ring series to identify past drought periods.
• Cross-date this chronology with other regional tree ring datasets to validate and extend climate reconstructions for northeastern North America.
• Investigate long-term forest growth trends and resilience by examining the multi-century tree ring width pattern.

Strengths

• 801-year continuous chronology from 764 to 37 BCE provides a long-term baseline.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Data recency is low, with a last update in 1987, potentially missing modern analytical refinements.
• Geographic scope is limited to a single site (Lac Duparquet, Quebec), limiting regional representativeness.
• Specific measurement parameters, sample depth, and potential measurement uncertainties are not detailed in the provided metadata.

Provenance

Source

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

Collection Method

Tree ring core sampling and width measurement (dendrochronology).

Time Range

764 to 37 BCE (calendar years before present).

Freshness

1987-01-01

Geography

Lac Duparquet, Quebec, Canada.