Alaskan Tree-Ring Chronology for Climate Reconstruction

Tree-ring width data from Mountain Lake, Alaska, provides a 172-year paleoclimate record from 129 to -43 calendar years before present. The dataset is archived by NOAA's National Centers for Environmental Information under the World Data Service for Paleoclimatology. It was last updated in the repository in 1993.

Use Cases

• Reconstruct past temperature or precipitation anomalies using the tree-ring width parameter as a proxy.
• Calibrate climate models by comparing the tree-ring chronology time series against instrumental records.
• Analyze growth patterns in the Mountain Lake, Alaska, chronology to identify extreme climatic events like volcanic eruptions or droughts.
• Perform cross-dating of undated tree-ring samples from the Alaskan region using this established master chronology.

Strengths

• Covers a specific 172-year period (129 to -43 BP) for detailed temporal analysis.
• Sourced from the authoritative NOAA NCEI World Data Service for Paleoclimatology.
• Provides a standardized tree-ring parameter for direct scientific comparison.

Limitations

• Data is temporally stale, with no updates recorded since 1993.
• The geographic scope is limited to a single site at Mountain Lake, Alaska.
• Unknown sample size (row count) and specific measurement methodologies.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology).

Time Range

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

Freshness

Last updated in repository on 1993-01-01.

Geography

Mountain Lake, Alaska, United States of America.