Argentine Tree Ring Chronology from 250 to 24 BC

Tree ring width measurements from Lago Terraplen in Chubut, Argentina, provide a climate proxy record. The chronology covers 274 years, from 250 to 24 calendar years before present. NOAA National Centers for Environmental Information archives this paleoclimatology study, which was last updated in 1974.

Use Cases

• Reconstruct regional temperature or precipitation anomalies using the tree ring width time series.
• Calibrate the chronology against other Southern Hemisphere paleoclimate proxies using its 274-year time range.
• Analyze growth patterns in the tree ring parameters to identify extreme drought or wet periods in ancient Patagonia.

Strengths

• Time series spans 274 calendar years, providing a multi-century climate record.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Dataset is temporally stale, with no updates recorded since its initial publication in 1974.
• Geographic coverage is limited to a single site (Lago Terraplen) in Argentina, limiting spatial representativeness.
• Specific parameters, sample depth, and measurement uncertainties are not detailed in the provided metadata.

Provenance

Source

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

Collection Method

Dendrochronology (Tree Ring analysis).

Time Range

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

Freshness

null

Geography

Chubut, Argentina (specific site: Lago Terraplen).