Alaskan Tree Ring Chronology From 180 to 33 BCE

Dendrochronological data from the Glenn Highway site in Alaska provides a 213-year record of tree growth. The dataset, archived by NOAA's World Data Service for Paleoclimatology, contains parameters derived from tree ring analysis. This specific collection was last updated in 1983.

Use Cases

• Reconstruct past temperature or precipitation anomalies using tree ring width or density parameters.
• Calibrate climate models by comparing the tree ring chronology against known historical climate periods.
• Analyze growth response patterns to infer environmental stressors like volcanic events or droughts during the covered period.
• Establish a regional master chronology for cross-dating other Alaskan paleoclimate records.

Strengths

• Covers a continuous 213-year period from 180 to 33 BCE.
• Sourced from the authoritative NOAA/NCEI World Data Service for Paleoclimatology.

Limitations

• The dataset's last update was in 1983, potentially missing modern methodological refinements.
• Specific sample size, measurement parameters, and site replication details are unknown from the description.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

180 to -33 calendar years BP (Before Present, where present=1950 CE). This equates to approximately 1770 BCE to 33 BCE.

Freshness

Static archive; last updated 1983-01-01.

Geography

Glenn Highway, Alaska, United States of America.