Mammoth Peak Tree Ring Width Data from 750 to 37 BCE

Tree ring width measurements from Mammoth Peak in Yosemite National Park provide a proxy climate record spanning 787 years. The dataset, created by the NOAA National Centers for Environmental Information, offers parameters for paleoclimate analysis. This archived study was last updated in 1987.

Use Cases

• Reconstruct annual temperature or precipitation anomalies for California from the tree-ring width parameter.
• Calibrate climate models by comparing the 787-year proxy record from Mammoth Peak with instrumental data.
• Analyze long-term climate trends and extreme events in the Sierra Nevada region using the dated ring width series.
• Cross-date and validate other tree-ring chronologies from western North America using this PAGES 2k network dataset.

Strengths

• 787-year continuous temporal coverage from 750 to 37 BCE.
• Data is part of the authoritative PAGES North America 2K paleoclimate network.
• Sourced from the NOAA World Data Service for Paleoclimatology, ensuring archival stability.

Limitations

• Temporal coverage ends 37 BCE, requiring integration with other datasets for modern climate analysis.
• Data last updated in 1987, potentially missing newer methodological refinements.
• Geographic scope is limited to a single site (Mammoth Peak, CA), limiting regional generalizations.

Provenance

Source

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

Collection Method

Tree ring (width) measurements.

Time Range

750 to -37 calendar years before present (BP), equivalent to 750 BCE to 37 BCE.

Freshness

1987-01-01

Geography

Mammoth Peak, Yosemite National Park, California, United States.