Altai Tree Ring Chronology from Ust Ulagan Lake (369 to -44 BP)

NOAA/WDS Paleoclimatology archives a tree ring chronology from the Ust Ulagan Lake site in the Altai region of Russia. The dataset provides a 413-year record of tree growth from 369 to -44 calendar years before present, used for climate reconstruction. It is maintained by the NOAA National Centers for Environmental Information under the World Data Service for Paleoclimatology.

Use Cases

• Reconstruct past temperature or precipitation variations using the tree-ring width time-series.
• Calibrate climate models by comparing the tree-ring chronology with instrumental climate records.
• Analyze long-term ecological trends and forest response to climate in the Altai region using the dated growth records.
• Study extreme climate events, such as droughts or cold periods, visible as anomalies in the ring-width series.

Strengths

• Covers a continuous 413-year time period from 369 to -44 BP.
• Sourced from the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Temporal coverage ends at -44 BP, lacking recent centuries for modern climate comparison.
• Geographic scope is limited to a single site (Ust Ulagan Lake) in the Altai Mountains.
• Data was last updated in 1994, indicating potential staleness in metadata or curation methods.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

369 to -44 calendar years before present (BP).

Freshness

Last updated in 1994.

Geography

Ust Ulagan Lake, Altai region, Russia, Eastern Europe.