466 calendar years of tree ring data from Douglas fir specimens in Colorado, USA, covering the period from 466 to -44 years before present. The dataset is archived by NOAA's National Centers for Environmental Information as part of the Paleoclimatology World Data Service. The data was last updated in 1994.
Use Cases
- Reconstructing past climate variables like temperature or precipitation using the annual tree ring width series.
- Calibrating radiocarbon dates by aligning the tree ring chronology with known calendar years.
- Analyzing long-term ecological responses, such as growth trends or stress events recorded in the ring sequences.
- Comparing this local chronology (ITRDB CO561) with other regional tree ring datasets to study spatial climate patterns.
Strengths
- Time series covers 510 total calendar years (from 466 to -44 BP).
- Data originates from NOAA NCEI, an authoritative environmental data repository.
- Specific geographic location (Hogback Rampart Hills, Colorado) is documented.
Limitations
- Data is stale, last updated in 1994, potentially lacking modern corrections or metadata.
- Specific parameters, measurement methods, and sample sizes are not detailed in the provided description.
- The calendar year range includes negative values (-44 BP), which may require careful interpretation and conversion.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI), World Data Service for Paleoclimatology.
- Collection Method
- Tree ring analysis (dendrochronology) of Douglas fir specimens.
- Time Range
- 466 to -44 calendar years before present (BP).
- Freshness
- 1994-01-01
- Geography
- Hogback Rampart Hills, Colorado, United States Of America.