Alaskan Tree-Ring Width Chronology from 750 to -37 BP

NOAA's National Centers for Environmental Information provides a paleoclimatology dataset of tree-ring width measurements from Alaska. The data covers a period from 750 to -37 calendar years before present, compiled as part of the PAGES North America 2K initiative. This archived study was published by NOAA NCEI in 1987.

Use Cases

• Reconstruct past temperature or precipitation anomalies in Alaska using the tree-ring width time-series.
• Calibrate regional climate models by comparing the tree-ring proxy record with other paleoclimate archives.
• Analyze the frequency of extreme climate events over a ~800-year period using the annual-resolution chronology.
• Study ecological responses to past climate change by correlating the ring-width data with known historical events.

Strengths

• Covers approximately 800 years of annual-resolution climate proxy data.
• Part of the standardized PAGES North America 2K network, facilitating continental-scale comparisons.
• Hosted and curated by NOAA's World Data Service for Paleoclimatology, an authoritative source.

Limitations

• The dataset's last update was in 1987, potentially lacking modern reanalysis or updated calibration.
• Specific sample depth, replication statistics, and measurement uncertainty details are not provided in the input.
• Geographic coverage is limited to a single site in Alaska.

Provenance

Source

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

Collection Method

Tree-ring width measurements (dendrochronology) from an unspecified tree species.

Time Range

750 to -37 calendar years before present (BP).

Freshness

null

Geography

Alaska, United States of America.