Ontario Tree-Ring Chronology from 309 to -32 BP

NOAA/WDS Paleoclimatology archives a tree-ring chronology from the Pot Lake-Northwest Lake area in Ontario, Canada. The dataset provides proxy climate data covering the period from 309 to -32 calendar years before present. It was published by NOAA's National Centers for Environmental Information in 1982.

Use Cases

• Calibrating regional climate models using the tree-ring width chronology as a proxy for past temperature or precipitation.
• Analyzing long-term environmental trends by examining the time-series of tree-ring parameters across the 341-year span.
• Cross-dating archaeological wood samples from Ontario by matching patterns in the tree-ring sequence.
• Studying climate variability before present (BP) using the dated annual resolution of the tree-ring record.

Strengths

• Covers a 341-year time period from 309 to -32 calendar years BP.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Temporal coverage ends at -32 BP, limiting analysis of more recent centuries.
• Geographic scope is limited to a specific location in Ontario, Canada.
• Data was last updated in 1982, potentially lacking modern methodological refinements.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology).

Time Range

309 to -32 calendar years before present (BP).

Freshness

Last updated in 1982.

Geography

Pot Lake-Northwest Lake area, Ontario, Canada.