NOAA's World Data Service for Paleoclimatology archives this tree ring dataset from the Grays Harbor/Johns River area in Washington State. It provides a chronology covering the period from 572 to 265 calendar years before present. The data was contributed by an author named Yamaguchi and is maintained by NOAA National Centers for Environmental Information.
Use Cases
- Reconstruct past temperature or precipitation anomalies from tree ring width measurements.
- Calibrate the chronology against other paleoclimate proxies using the year-by-year time series data.
- Analyze growth patterns and climate sensitivity of the tree species (THPL - likely Pseudotsuga menziesii) represented in the dataset.
- Study extreme climatic events, such as droughts, within the 307-year record for the Washington coast.
Strengths
- Time series covers a continuous 307-year period (572 to 265 BP).
- Data is archived and curated by the authoritative NOAA NCEI World Data Service for Paleoclimatology.
Limitations
- The dataset's sample size (number of individual tree cores or records) is unknown, limiting assessment of statistical robustness.
- Temporal coverage is for a pre-modern period (before present) and does not extend into the instrumental era for direct comparison.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) World Data Service (WDS) for Paleoclimatology.
- Collection Method
- Tree ring data collected via dendrochronological methods, likely from snags (dead standing trees).
- Time Range
- 572 to 265 calendar years before present (BP).
- Freshness
- null
- Geography
- Grays Harbor/Johns River area, Washington, United States of America.