Gunisao Lake Tree Ring Chronology from Manitoba, Canada

A tree ring chronology dataset from Gunisao Lake in Manitoba, Canada, archived by the NOAA National Centers for Environmental Information. It provides paleoclimate proxy data covering the period from 131 to -38 calendar years before present (BP). The data was contributed by Schweingruber and last updated in the NOAA system in 1988.

Use Cases

• Reconstructing past temperature or precipitation anomalies for the Manitoba region using the tree-ring width series.
• Calibrating the chronology against known climate events using the provided calendar years before present (BP) time axis.
• Analyzing long-term climate trends and variability from 131 to -38 BP for comparison with other proxy records.
• Studying the response of boreal forest tree species to historical climate conditions at the specific Gunisao Lake site.

Strengths

• Data is archived and maintained by the authoritative NOAA World Data Service for Paleoclimatology.
• Covers a specific time range of 169 years (from 131 to -38 BP).
• Provides a geographically specific record from a single lake site in Manitoba, Canada.

Limitations

• The dataset is temporally stale, with a last system update recorded in 1988.
• The exact number of tree core samples, measurement series, and derived parameters is unknown from the description.
• Geographic coverage is limited to one site, which may not be representative of broader regional climate.

Provenance

Source

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

Collection Method

Tree ring data collection and analysis (dendrochronology), likely from core samples.

Time Range

131 to -38 calendar years before present (BP).

Freshness

null

Geography

Gunisao Lake, Manitoba, Canada.