Altai Tree Ring Chronology from Ust Ulagan Bog (253 BC to 44 BC)

NOAA/WDS Paleoclimatology archives a tree-ring dataset from the Ust Ulagan Bog in the Altai region of Russia. The chronology covers the period from 253 to 44 calendar years before present, created by researcher Schweingruber. This study was contributed to the International Tree-Ring Data Bank (ITRDB) and last updated in 1994.

Use Cases

• Reconstruct past temperature or precipitation anomalies for the Altai region using the tree-ring width chronology.
• Calibrate the tree-ring chronology against other regional paleoclimate proxies for the period 253-44 BC.
• Analyze growth patterns in the LASI species to infer climatic stress events during the covered timeframe.
• Validate climate model simulations of the late Holocene period using the dated tree-ring series from this site.

Strengths

• Chronology spans 210 years (253 to 44 BC), providing a multi-century climate record.
• Data is part of the authoritative International Tree-Ring Data Bank (ITRDB) under NOAA/NCEI stewardship.
• Specific geographic location (Ust Ulagan Bog, Altai, Russia) enables precise regional analysis.

Limitations

• Dataset is temporally stale, with no updates since its last publication in 1994.
• Limited to a single site and tree species (LASI), reducing spatial representativeness.
• The time period covered is relatively short (210 years) for some long-term climate trend analyses.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology) of samples from the Ust Ulagan Bog.

Time Range

253 to 44 calendar years before present (BC).

Freshness

1994-01-01

Geography

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