Canadian Tree Ring Chronology from St. George Site

92 calendar years of tree ring data from the St. George - Horseshoe Lake site in Manitoba, Canada, covering the period from 43 to -49 years before present. The dataset is archived by NOAA's National Centers for Environmental Information under the World Data Service for Paleoclimatology. This paleoclimatology study was last updated in 1999.

Use Cases

• Calibrating climate proxy models using the tree ring width time-series to infer past temperature or precipitation anomalies.
• Analyzing growth patterns in the chronology to identify extreme climatic events or volcanic eruptions during the covered 92-year period.
• Cross-dating this site chronology (ITRDB CANA179) with other regional tree ring records to build a spatially extended climate reconstruction.

Strengths

• Covers a specific 92-year chronology from 43 to -49 calendar years BP.
• Archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• The dataset's last update was in 1999, indicating potential staleness and lack of recent methodological improvements.
• The geographic coverage is limited to a single site in Manitoba, Canada, which may not represent broader regional patterns.
• Specific parameters, sample depth, and measurement uncertainties 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

43 to -49 calendar years before present (BP).

Freshness

1999-01-01

Geography

St. George - Horseshoe Lake site, Manitoba, Canada.