Pethai Peninsula Tree Ring Chronology from 340 BC

378-year tree-ring chronology from the Pethai Peninsula in Canada's Northwest Territories provides a proxy record for past climate conditions. The dataset was archived by NOAA's World Data Service for Paleoclimatology and represents a Tree Ring study type. Data coverage spans from 340 to -38 calendar years before present, with the study last updated in 1988.

Use Cases

• Calibrating climate reconstruction models using the annual-resolution tree-ring width parameter as a temperature/moisture proxy.
• Analyzing long-term environmental stress events by examining anomalies in the ring-width time series over the 378-year period.
• Cross-dating this chronology with other ITRDB series to validate regional climate signal coherence across the Northwest Territories.
• Studying pre-industrial climate baseline conditions from the years 340 to -38 BP to contextualize modern anthropogenic warming.

Strengths

• Provides a 378-year continuous annual-resolution climate proxy record.
• Part of the authoritative International Tree-Ring Data Bank (ITRDB) collection curated by NOAA NCEI.
• Geographic location is precisely defined for the Pethai Peninsula, Northwest Territories, Canada.

Limitations

• Temporal coverage ends at -38 BP (38 BC), making it unsuitable for analyzing recent climate changes.
• The dataset was last updated in 1988, potentially lacking modern methodological refinements.
• Specific parameters, sample depth, and measurement details are unknown without accessing full metadata.

Provenance

Source

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

Collection Method

Tree-ring data collection and analysis, archived as part of the International Tree-Ring Data Bank (ITRDB).

Time Range

340 to -38 calendar years before present (BP).

Freshness

Last updated in 1988.

Geography

Pethai Peninsula, Northwest Territories, Canada.