California Tree Ring Chronology from 343 to 46 BCE

Tree ring width measurements from Pacheco Pass State Park in California provide a climate proxy record spanning 389 years. The dataset, archived by NOAA's World Data Service for Paleoclimatology, was last updated in 1996. It represents a Tree Ring study type from the NOAA National Centers for Environmental Information.

Use Cases

• Reconstruct past precipitation or temperature anomalies by analyzing annual tree ring width variations.
• Calibrate climate models using the 389-year chronology of ring width data as a ground truth proxy.
• Study the frequency of extreme climatic events, such as droughts, evident in sequences of narrow rings.
• Compare this site's ring width series with other chronologies to assess regional climate synchronicity.

Strengths

• 389-year continuous chronology from 343 to 46 BCE.
• Data is curated and archived by the authoritative NOAA NCEI World Data Service.

Limitations

• Data is temporally stale, with a last update recorded in 1996.
• Geographic coverage is limited to a single site (Pacheco Pass State Park).
• Sample size (number of trees/core samples) is unknown from the metadata.

Provenance

Source

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

Collection Method

Tree ring measurements (dendrochronology).

Time Range

343 to -46 calendar years BP (389 years total coverage).

Freshness

1996-01-01

Geography

Pacheco Pass State Park, California, United States of America.