Tree-ring width measurements from the Yakutat Outer Terminal Moraine in Alaska provide a climate proxy record spanning 543 years. The data, archived by NOAA's World Data Service for Paleoclimatology, covers the period from 497 to -46 calendar years before present. This chronology was created for glacial dating and climate reconstruction studies.
Use Cases
- Calibrating glacial chronologies by correlating terminal moraine formation dates with tree-ring derived climate events.
- Reconstructing past temperature or precipitation variability in coastal Alaska using the tree-ring width time-series.
- Dating geomorphic surfaces and landforms in the Yakutat region by establishing a minimum age from the oldest sampled trees.
Strengths
- Time-series covers a 543-year period from 497 to -46 BP.
- Data is curated and archived by the authoritative NOAA/NCEI World Data Service for Paleoclimatology.
Limitations
- The dataset's temporal coverage ends at -46 BP, limiting direct application to the most recent centuries.
- Data is specific to a single terminal moraine site in Yakutat, Alaska, reducing geographic generalizability.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) / World Data Service (WDS) for Paleoclimatology.
- Collection Method
- Tree-ring cores sampled from trees at the Yakutat Outer Terminal Moraine site, processed into a standardized chronology.
- Time Range
- 497 to -46 calendar years before present (BP).
- Freshness
- null
- Geography
- Yakutat, Alaska, United States of America.