New Zealand Tree Ring Chronology From 325 to -26 BP

Tree ring parameters from a site in New Zealand provide a paleoclimate record spanning 351 years, from 325 to -26 calendar years before present. The dataset is archived by the NOAA National Centers for Environmental Information under its World Data Service for Paleoclimatology. It was last updated in the NOAA system in 1976.

Use Cases

• Reconstruct past temperature or precipitation anomalies using the tree-ring width chronology.
• Calibrate radiocarbon dating curves by comparing the dated tree-ring sequence to known calendar years.
• Analyze climate periodicity and extreme events from the high-resolution annual tree-ring data.
• Validate climate model simulations for the New Zealand region using the proxy record.

Strengths

• 351-year continuous annual chronology provides high-resolution climate proxy.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• The dataset's last update was in 1976, indicating it is a static, legacy archive.
• The specific site, 'North Egmont - LIBI', represents a single geographic point, limiting regional representativeness.
• Unknown sample depth and replication statistics affect confidence in the chronology's signal strength.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

325 to -26 calendar years before present (BP).

Freshness

1976-01-01

Geography

New Zealand (specific site: North Egmont - LIBI).