Nicollet Lake Tree Ring Chronology from 223 to -21 BP

Tree ring width measurements from Nicollet Lake in Minnesota, USA, used for paleoclimate reconstruction. The chronology covers 244 years, from 223 to -21 calendar years before present. Data is archived by the NOAA National Centers for Environmental Information (NCEI) World Data Service for Paleoclimatology.

Use Cases

• Reconstruct annual temperature or precipitation anomalies from tree ring width measurements.
• Calibrate the chronology against other proxy records using the documented calendar year BP time index.
• Analyze growth patterns and potential climate events within the 244-year time series.

Strengths

• Time series covers 244 consecutive years, providing a continuous climate record.
• Data is curated and archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• Sample size (number of tree cores) is unknown, limiting assessment of statistical robustness.
• Geographic coverage is limited to a single lake site in Minnesota, USA.

Provenance

Source

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

Collection Method

Tree ring data collection (dendrochronology).

Time Range

223 to -21 calendar years before present (BP).

Freshness

null

Geography

Nicollet Lake, Minnesota, United States of America.