Chilean Tree Ring Chronology from 217 to 25 BC

Tree ring width data from a site in Biobio, Chile, provides a climate proxy record spanning 242 years. The chronology covers the period from 217 to 25 calendar years before present, offering a snapshot of environmental conditions in ancient South America. This archived study is maintained by NOAA's National Centers for Environmental Information under its World Data Service for Paleoclimatology.

Use Cases

• Calibrating regional climate models using the tree ring width time-series as a proxy for past temperature or precipitation.
• Analyzing growth anomaly patterns within the 242-year chronology to identify periods of drought or volcanic cooling.
• Cross-dating this Chilean tree ring series with other Southern Hemisphere records to validate regional climate reconstructions.
• Investigating the relationship between ring width variability and known historical events within the recorded time period.

Strengths

• Covers a continuous 242-year period from 217 to 25 BC, providing a substantial pre-modern baseline.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• The single geographic location in Biobio, Chile limits spatial representativeness for broader regional analysis.
• The record ends 25 years before present, offering no data for the most recent two millennia.
• Sample size and replication depth within the chronology are unknown from the provided metadata.

Provenance

Source

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

Collection Method

Data derived from tree ring analysis (dendrochronology).

Time Range

217 to 25 calendar years before present (BP).

Freshness

null

Geography

Biobio, Chile.