Montana Tree Ring Chronology from 262 to -15 BP

Tree ring width measurements from a Pseudotsuga menziesii (PSME) site in Butte, Montana, United States. The chronology spans 277 years, from 262 to -15 calendar years before present (BP). Data are archived by NOAA's National Centers for Environmental Information under the World Data Service for Paleoclimatology.

Use Cases

• Reconstruct past temperature or precipitation anomalies from annual tree ring width series.
• Calibrate regional climate models using a 277-year proxy record from Montana.
• Analyze growth response of Douglas-fir (PSME) to historical climate events within the specified time range.
• Cross-date this ITRDB MT103 chronology with other regional tree ring series to verify temporal alignment.

Strengths

• 277-year continuous chronology providing multi-century climate proxy.
• Geographically specific to a single site in Butte, Montana, enabling localized analysis.
• Archived and curated by NOAA NCEI, a authoritative climate data center.

Limitations

• Temporal coverage ends at -15 BP (~1965 AD), lacking recent decades for modern climate comparison.
• Single species and site limit spatial representativeness for broader regional conclusions.
• Unknown sample depth (number of cores/trees) affects confidence in annual growth signals.

Provenance

Source

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

Collection Method

Tree ring core sampling and measurement (dendrochronology).

Time Range

262 to -15 calendar years before present (BP).

Freshness

null

Geography

Butte, Montana, United States Of America.