Tree Ring Chronology From Upper Yosemite Creek In Yosemite National Park

Tree ring width data from White Fir (Abies concolor) trees in Yosemite National Park provide a proxy record for past climate conditions. The chronology covers a 111-year period from 70 to -41 calendar years before present, calibrated to the year 1950. This archived study is maintained by NOAA's National Centers for Environmental Information under its World Data Service for Paleoclimatology.

Use Cases

• Reconstruct historical temperature or precipitation anomalies using the tree ring width series as a climate proxy.
• Calibrate the chronology against known climate events using the calendar years before present (BP) time index.
• Analyze growth patterns of White Fir (ABCO) in response to environmental stressors documented in the metadata.
• Compare this site's chronology (ITRDB CA593) with other tree ring datasets from California for regional climate analysis.

Strengths

• Data spans a 111-year period (70 to -41 BP), providing a century-scale climate record.
• Sourced from a protected location (Yosemite National Park) minimizing modern anthropogenic disturbance.
• Archived and curated by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• The dataset's last documented update was in 1991, indicating potential staleness and lack of recent maintenance.
• The specific sample size (number of tree cores) and measurement resolution are unknown from the provided description.
• Geographic coverage is limited to a single site (Upper Yosemite Creek), restricting broader spatial analysis.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI) World Data Service (WDS) for Paleoclimatology.

Collection Method

Tree ring analysis (dendrochronology) of White Fir (Abies concolor, ABCO) trees.

Time Range

70 to -41 calendar years before present (BP), where 0 BP = 1950 CE.

Freshness

null

Geography

Upper Yosemite Creek, Yosemite National Park, California, United States of America.