Mexican Tree Ring Chronology from 469 to 43 BC

512 years of tree-ring width data from El Salto and Tucson sites in Mexico, used for paleoclimate reconstruction. The dataset is archived by NOAA's National Centers for Environmental Information under the World Data Service for Paleoclimatology. It was published in 1993.

Use Cases

• Reconstruct past precipitation and drought indices by analyzing annual tree-ring width variations.
• Calibrate radiocarbon dating and establish calendar year sequences using the 512-year dendrochronological record.
• Compare climatic signals between the three Tucson LTRR sites and the El Salto site to assess regional coherence.
• Study the frequency of extreme growth years (narrow or wide rings) as proxies for past climatic events.

Strengths

• Covers a continuous 512-year period from 469 to 43 BC.
• Includes data from multiple collection sites (El Salto and three Tucson LTRR sites) for comparison.

Limitations

• Data is temporally stale, last updated in 1993, with no recent revisions.
• Specific sample depth (number of tree cores), measurement variables, and site metadata 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).

Time Range

469 to -43 calendar years BP (Before Present, where present is 1950).

Freshness

1993-01-01

Geography

Mexico, specific sites include El Salto and three Tucson LTRR sites.