Tree ring width measurements from the Sheenjek River and Flats region of Alaska provide a paleoclimate record spanning 683 years. The dataset, archived by NOAA's World Data Service for Paleoclimatology, was published in 1979 and originates from the International Tree-Ring Data Bank. It is a key resource for reconstructing past environmental conditions in the Arctic.
Use Cases
- Reconstruct past temperature or precipitation anomalies by analyzing the annual tree ring width series.
- Calibrate climate models using the 683-year chronology to validate simulations of past Arctic conditions.
- Study ecological resilience and growth patterns in response to historical climate events recorded in the ring data.
- Perform cross-dating with other Alaskan tree ring chronologies to build regional climate reconstructions.
Strengths
- Covers a long temporal range of 683 calendar years (654 to -29 BP).
- Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.
- Part of the standardized International Tree-Ring Data Bank (ITRDB) collection.
Limitations
- Data is temporally stale, with a last update recorded in 1979.
- Geographic coverage is limited to a single site in the Sheenjek River area of Alaska.
- Specific sample size, measurement parameters, and potential measurement noise are not detailed in the provided metadata.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI), World Data Service for Paleoclimatology.
- Collection Method
- Tree ring core sampling and width measurement (dendrochronology).
- Time Range
- 654 to -29 calendar years before present (BP).
- Freshness
- null
- Geography
- Sheenjek River and Flats, Alaska, United States of America.