Argentine Tree Ring Chronology Spanning 452 Calendar Years

Tree ring width measurements from the Castaño Overo site in Rio Negro, Argentina provide a 452-year chronology from 411 to -41 calendar years before present. NOAA National Centers for Environmental Information archives this paleoclimatology data for climate reconstruction studies. The dataset was last updated in 1991.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing the annual tree ring width series.
• Calibrate radiocarbon dating curves using the precisely dated tree ring chronology.
• Study the frequency of extreme climatic events in Patagonia by identifying marker years in the ring width record.
• Compare this Southern Hemisphere tree ring series with Northern Hemisphere chronologies to investigate global climate teleconnections.

Strengths

• Chronology covers a substantial 452-year time period.
• Data is curated and archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• Data is temporally stale, with a last update recorded in 1991.
• The specific sample depth (number of tree cores) and measurement statistics are unknown, limiting uncertainty assessment.
• Geographic coverage is limited to a single site in Rio Negro, Argentina.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology) from the Castaño Overo 6 site.

Time Range

411 to -41 calendar years before present (BP).

Freshness

1991-01-01

Geography

Rio Negro, Argentina.