Alaskan Tree Ring Chronology from Grasshopper Hill (160 to -49 BP)

NOAA/WDS Paleoclimatology provides a tree-ring chronology from Grasshopper Hill, Alaska. The data covers the period from 160 to -49 calendar years before present. This dataset is archived by NOAA National Centers for Environmental Information and was last updated in 1999.

Use Cases

• Reconstruct past temperature or precipitation anomalies using annual tree-ring width measurements.
• Calibrate climate models by comparing the tree-ring chronology with known historical climate events.
• Analyze growth response patterns to infer past environmental stressors specific to the Alaskan location.
• Establish a regional master chronology for cross-dating other Alaskan tree-ring samples.

Strengths

• Time series coverage spans 209 years (160 to -49 BP).
• Data is curated and archived by the NOAA World Data Service for Paleoclimatology, an authoritative source.

Limitations

• Dataset is temporally stale, with a last update date of 1999.
• Specific sample size, measurement parameters, and replication statistics are unknown from the provided metadata.

Provenance

Source

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

Collection Method

Tree ring data collection (dendrochronology).

Time Range

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

Freshness

null

Geography

Grasshopper Hill, Alaska, United States of America.