Tree Ring Chronology from Porcupine Flat in Yosemite National Park

A tree-ring chronology dataset from Porcupine Flat in Yosemite National Park, California. The data covers a period from 70 to -40 calendar years before present (BP). It is archived by NOAA's National Centers for Environmental Information under the World Data Service for Paleoclimatology.

Use Cases

• Reconstruct past temperature or precipitation anomalies using the tree-ring width chronology as a climate proxy.
• Calibrate the chronology against known climate events by analyzing the dated annual growth rings.
• Study long-term ecological changes in Yosemite National Park by examining growth patterns in the tree-ring series.
• Validate regional climate models by comparing simulated past climates with the proxy data from this site.

Strengths

• Data covers a 110-year period (70 to -40 BP), providing a century-scale climate record.
• Sourced from NOAA NCEI, an authoritative repository for paleoclimate data.

Limitations

• The dataset's last known update was in 1990, indicating potential staleness.
• Specific sample depth, measurement parameters, and site details are not provided in the basic description.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

70 to -40 calendar years before present (BP).

Freshness

null

Geography

Porcupine Flat, Yosemite National Park, California, United States.