Alaskan Tree Ring Chronology From Brassiere Hill For Paleoclimate Study

NOAA/WDS Paleoclimatology archives a tree-ring dataset from the Brassiere Hill site in Alaska's Taku Inlet near Juneau. The chronology covers a 228-year period from 192 to -36 calendar years before present. This dataset was published by NOAA National Centers for Environmental Information in 1986.

Use Cases

• Reconstruct historical temperature or precipitation anomalies from the tree-ring width chronology.
• Calibrate climate models by comparing the tree-ring proxy data with instrumental records for the Alaska region.
• Analyze growth patterns in the chronology to identify extreme climate events like droughts or cold periods.
• Establish a dated tree-ring series for cross-referencing and validating other paleoclimate archives from southeastern Alaska.

Strengths

• Data is archived by the authoritative NOAA World Data Service for Paleoclimatology.
• Chronology provides a 228-year time series (192 to -36 BP) for climate analysis.

Limitations

• Temporal coverage ends at -36 BP (approximately 1986 CE), lacking modern extension.
• Data is from a single site (Brassiere Hill), limiting spatial representativeness for Alaska.
• Specific metrics like sample depth, replication, or measurement statistics are unknown from the description.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

192 to -36 calendar years before present (BP).

Freshness

null

Geography

Brassiere Hill, Taku Inlet, Juneau area, Alaska, United States.