Annette Lake Trail Tree Ring Chronology from Washington State

Tree ring width measurements from a Pseudotsuga menziesii (Douglas fir) site in Washington state provide a 472-year climate proxy record. The chronology spans from 435 to -37 calendar years before present, with negative years indicating dates after 1950. This archived paleoclimatology study is maintained by NOAA's National Centers for Environmental Information.

Use Cases

• Reconstruct historical temperature or precipitation anomalies using the tree ring width time-series as a climate proxy.
• Calibrate the chronology against known climate events by analyzing the dated ring width measurements.
• Compare this Pseudotsuga menziesii (PSME) site's growth patterns with other ITRDB chronologies from the region.
• Validate climate model simulations for the past millennium using the dated proxy record from this location.

Strengths

• Provides a 472-year continuous chronology for climate analysis.
• Data is archived and curated by NOAA's World Data Service for Paleoclimatology, an authoritative source.

Limitations

• The dataset is temporally stale, with a last recorded update in 1987.
• Limited to a single tree species (PSME) from one geographic location, reducing generalizability.
• Unknown sample size (number of tree cores) and measurement methodology details.

Provenance

Source

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

Collection Method

Tree ring measurements (dendrochronology) from Pseudotsuga menziesii.

Time Range

435 to -37 calendar years BP (Before Present, where present is 1950).

Freshness

null

Geography

Annette Lake Trail, Washington, United States.