Oregon Ponderosa Pine Tree Ring Chronology from 448 to 41 BC

489 years of tree ring width data from Ponderosa Pine (Pinus ponderosa, PIPO) in Oregon, United States, covering the period from 448 to 41 calendar years before present. This paleoclimatology study was archived by NOAA's National Centers for Environmental Information (NCEI) under the World Data Service for Paleoclimatology. The data collection was last updated in 1991.

Use Cases

• Reconstruct past climate variables like temperature or precipitation using annual tree ring width as a proxy.
• Analyze long-term forest growth trends and responses to environmental events within the 489-year chronology.
• Calibrate and validate climate models for the Oregon region using the dated time series data.
• Study the frequency and ecological impact of disturbances, such as fires or droughts, recorded in the ring sequences.

Strengths

• Provides a 489-year continuous chronology for climate reconstruction.
• Data is curated and archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• The dataset has not been updated since 1991, potentially missing modern verification or methodological improvements.
• Specific sample size, geographic coordinates, and measurement parameters are not detailed in the provided description.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology) of Ponderosa Pine samples.

Time Range

448 to -41 calendar years BP (Before Present, where present=1950).

Freshness

Last updated in 1991; static historical archive.

Geography

Oregon, United States of America.