Blue Jay Spring Tree Ring Chronology for Oregon Ponderosa Pine

Tree ring width measurements from Ponderosa Pine (Pinus ponderosa) at Blue Jay Spring in Oregon provide a 572-year climate proxy record. The data spans from 527 to -45 calendar years before present, indicating it extends into the future relative to the 1950 baseline. This chronology is archived by NOAA's World Data Service for Paleoclimatology.

Use Cases

• Reconstruct annual temperature or precipitation for Oregon using the tree ring width time-series as a proxy.
• Calibrate the chronology against known climate events using the calendar year BP dating.
• Analyze growth trends and climate sensitivity of Ponderosa Pine (PIPO) in a specific Oregon location.
• Compare this ITRDB site OR055 with other regional chronologies to study spatial climate patterns.

Strengths

• 572-year continuous annual resolution record from 527 to -45 BP.
• Data is part of the authoritative International Tree-Ring Data Bank (ITRDB) collection.

Limitations

• Sample depth and replication statistics for individual years are unknown.
• The record ends in 1995, lacking data for recent decades of rapid climate change.
• Geographic coverage is limited to a single site (Blue Jay Spring) in Oregon.

Provenance

Source

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

Collection Method

Dendrochronological analysis of tree core samples from Ponderosa Pine.

Time Range

527 to -45 calendar years before present (BP, where 0 BP = 1950 CE).

Freshness

null

Geography

Blue Jay Spring, Oregon, United States of America.