Nichawak Mountain Tree Ring Chronology for Paleoclimate Reconstruction

230 calendar years of tree ring data from 188 to -42 years before present, providing a proxy climate record. The dataset is part of the NOAA NCEI World Data Service for Paleoclimatology and was archived by the NOAA National Centers for Environmental Information. The data was last updated in the repository in 1992.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing the annual ring-width series from the Nichawak Mountain site.
• Calibrate the tree-ring chronology against known climate events within the 230-year period for proxy validation.
• Compare this Alaskan chronology with other regional ITRDB series to study spatial climate patterns.
• Use the dated tree-ring sequences to establish a calendar-year timeline for environmental events in the region.

Strengths

• Covers a specific 230-year period (188 to -42 BP) for climate proxy analysis.
• Part of the authoritative International Tree-Ring Data Bank (ITRDB) collection curated by NOAA NCEI.

Limitations

• Data is temporally stale, with a last repository update recorded in 1992.
• The geographic coverage is limited to a single site (Nichawak Mountain, Alaska), limiting broad spatial analysis.
• Specific parameters, sample depth, and measurement details are not provided in the input and require metadata review.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology), likely measuring ring-width parameters.

Time Range

188 to -42 calendar years before present (BP).

Freshness

1992-01-01

Geography

Nichawak Mountain, Alaska, United States of America.