Navajo Mountain Ponderosa Pine Tree Ring Chronology from 385 to 21 BCE

Tree ring width measurements from Ponderosa Pine (PIPO) at Navajo Mountain, Utah, provide a 406-year climate proxy record. The data covers the period from 385 to 21 calendar years before present (BP). This archived study is maintained by NOAA's National Centers for Environmental Information under its World Data Service for Paleoclimatology.

Use Cases

• Reconstruct past precipitation or temperature anomalies by analyzing annual tree_ring_width variations.
• Calibrate radiocarbon dating models by cross-referencing the established tree-ring chronology with other proxy records.
• Study the frequency of drought events by identifying sequences of narrow rings in the time-series.
• Assess ecological response to volcanic events by examining growth suppression patterns around known eruption dates.

Strengths

• 406-year continuous chronology from 385 to 21 BCE.
• Geographically specific data from a single species (Ponderosa Pine) at Navajo Mountain, Utah.

Limitations

• Temporal coverage ends 21 years before present, lacking modern instrumental overlap.
• Single-site chronology may not represent regional climate signals without additional proxy records.
• Unknown sample depth (number of trees/cores) underlying the master chronology.

Provenance

Source

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

Collection Method

Tree ring cores collected and measured using standard dendrochronological techniques.

Time Range

385 to -21 calendar years BP (Before Present, where present is 1950 CE).

Freshness

null

Geography

Navajo Mountain, Utah, United States of America.