Saganaga Lake Tree Ring Chronology for Paleoclimate Analysis

Tree ring core samples from Saganaga Lake, Minnesota, provide a 272-year chronology from 234 to -38 calendar years before present. The dataset is part of the NOAA/WDS Paleoclimatology archive, contributed by researcher Graumlich and resampled in 1988. It documents parameters related to tree growth for reconstructing past environmental conditions.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing annual tree-ring width parameters.
• Calibrate climate models using the 272-year proxy record from 234 to -38 BP.
• Study local environmental history of Minnesota by correlating tree-ring parameters with known regional events.
• Validate other paleoclimate proxies by comparing the Saganaga Lake chronology with nearby tree-ring datasets.

Strengths

• Chronology spans 272 calendar years, providing a multi-century climate record.
• Data is curated and archived by the authoritative NOAA National Centers for Environmental Information (NCEI).
• Includes specific geographic location details for Saganaga Lake, Minnesota.

Limitations

• Temporal coverage ends at -38 BP (approximately 38 BCE), lacking recent centuries of data.
• Sample size and replication depth for the tree-ring chronology are unknown from the description.
• Data is from a single geographic site (Saganaga Lake), limiting regional representativeness.

Provenance

Source

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

Collection Method

Tree ring core sampling and dendrochronological analysis.

Time Range

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

Freshness

null

Geography

Saganaga Lake, Minnesota, United States of America.