Tree Ring Chronology from Rio Negro, Argentina

Tree ring data from the Castaño Overo site in Rio Negro, Argentina, provides a paleoclimate record. The time series covers 171 years, from 130 to -41 calendar years before present. NOAA National Centers for Environmental Information archives this data, which was last updated in 1991.

Use Cases

• Reconstruct past temperature or precipitation using the tree-ring width chronology.
• Analyze climate periodicity and extreme events within the 171-year time series.
• Calibrate regional climate models with the dated proxy record from Rio Negro.
• Compare this Southern Hemisphere tree-ring series with other paleoclimate archives.

Strengths

• Time series spans 171 calendar years (130 to -41 BP).
• Data is archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Data is temporally stale, last updated in 1991.
• Sample size and replication depth for the tree-ring chronology are unknown.
• Geographic coverage is limited to a single site in Argentina.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

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

Freshness

1991-01-01

Geography

Rio Negro, Argentina.