Alaskan Tree Ring Chronology For Paleoclimate Analysis

Tree ring width chronology data from a below-treeline site in the Usibelli area of Alaska. The dataset covers a period from 166 to -46 calendar years before present. It is archived by the NOAA National Centers for Environmental Information as part of the World Data Service for Paleoclimatology.

Use Cases

• Reconstruct historical temperature or precipitation anomalies using the tree-ring width chronology as a proxy.
• Calibrate the tree-ring chronology against known climate events within its 212-year time span.
• Analyze growth patterns in the tree-ring series to infer ecological responses to past environmental changes in Alaska.
• Compare this below-treeline chronology with other ITRDB records to assess site-specific climate signals.

Strengths

• Data spans 212 calendar years, providing a multi-century paleoclimate record.
• Archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.
• Geographic location is precisely defined for Alaska, United States.

Limitations

• Temporal coverage is relatively short for dendrochronological studies at 212 years.
• The dataset was last updated in 1996, potentially lacking modern reanalysis or standardization.
• Specific parameters, sample depth, and measurement details are not provided in the basic description.

Provenance

Source

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

Collection Method

Tree ring data collection and analysis, part of the International Tree-Ring Data Bank (ITRDB).

Time Range

166 to -46 calendar years before present (BP).

Freshness

Last updated in 1996.

Geography

Usibelli area, Alaska, United States Of America.