Olympic Peninsula Tree Ring Width Chronology From 450 BP

Tree-ring width measurements from a Pseudotsuga menziesii (Douglas-fir) site in Washington state, USA, provide a climate proxy record. The chronology covers a 480-year period from 450 to -30 calendar years before present. NOAA National Centers for Environmental Information archived this paleoclimatology study.

Use Cases

• Reconstruct past temperature or precipitation anomalies by calibrating tree-ring width measurements against instrumental records.
• Analyze growth response patterns in Pseudotsuga menziesii (PSME) to infer past climatic stressors.
• Compare the Olympic Road 3116 site chronology (WA088) with other North American tree-ring networks in the PAGES 2k database.
• Validate the 'Year 0' transition period in the calendar years before present (BP) timescale for dendrochronological alignment.

Strengths

• Chronology spans a 480-year period from 450 to -30 calendar years BP.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Sample size and replication depth for the tree-ring series are unknown, limiting statistical confidence.
• The dataset's last update was in 1980, potentially missing modern reanalysis or updated calibration.

Provenance

Source

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

Collection Method

Tree-ring (dendrochronological) sampling and width measurement.

Time Range

450 to -30 calendar years before present (BP).

Freshness

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Geography

Washington, United States Of America (specific site: Olympic Road 3116, WA088).