Lonco Luan Tree Ring Chronology from Neuquen, Argentina

Tree ring width measurements from Neuquen, Argentina provide a 668-year climate proxy record spanning from 644 to -24 calendar years before present. This chronology is archived by NOAA's World Data Service for Paleoclimatology as part of the International Tree-Ring Data Bank. The dataset was published by NOAA NCEI in 1974.

Use Cases

• Reconstructing past temperature or precipitation anomalies in Patagonia using annual tree ring width as a proxy.
• Calibrating regional climate models by comparing the tree ring chronology time series against instrumental records.
• Analyzing the frequency of extreme climate events in the Holocene period from the high-resolution annual data.
• Studying the growth response of native tree species in Argentina to long-term climate forcing.

Strengths

• 668-year continuous annual chronology provides high-resolution climate proxy.
• Data is part of the authoritative International Tree-Ring Data Bank (ITRDB) collection.

Limitations

• Data record ends at -24 BP (1974 CE), lacking recent decades of climate observations.
• Single geographic location (Neuquen, Argentina) limits broad spatial analysis.

Provenance

Source

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

Collection Method

Tree ring core sampling and width measurement (dendrochronology).

Time Range

644 to -24 calendar years before present (BP).

Freshness

null

Geography

Neuquen, Argentina.