70 to -40 calendar years before present (BP) of tree ring width data from giant sequoias (Quercus kelloggii, QUKE) in Wawona, Yosemite National Park, California. This paleoclimatology dataset was archived by NOAA's National Centers for Environmental Information under the World Data Service. The record was last updated in the NOAA system in January 1990.
Use Cases
- Reconstruct past precipitation and temperature anomalies using annual tree ring width as a proxy.
- Calibrate climate models by comparing the -40 to 70 BP chronology with other regional paleoclimate records.
- Analyze growth response of giant sequoias (QUKE) to climatic events within the defined 110-year period.
- Study forest resilience by examining ring width sequences for evidence of drought or disturbance.
Strengths
- Covers a specific 110-year period from 70 to -40 calendar years before present.
- Data originates from the authoritative NOAA/NCEI World Data Service for Paleoclimatology.
- Provides a geographically precise location: Wawona, Yosemite National Park, California.
Limitations
- Very small temporal coverage of 110 years limits long-term climate trend analysis.
- Data is temporally stale, with a last recorded update in January 1990.
- Unknown sample size (number of tree cores) and replication limits statistical confidence.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI) World Data Service (WDS) for Paleoclimatology.
- Collection Method
- Tree ring analysis (dendrochronology) of giant sequoias (Quercus kelloggii, QUKE).
- Time Range
- 70 to -40 calendar years before present (BP).
- Freshness
- null
- Geography
- Wawona, Yosemite National Park, California, United States of America.