New Zealand Tree Ring Chronology For Paleoclimate Reconstruction

NOAA/WDS Paleoclimatology archives a tree-ring chronology from the Ahaura Recollection site in New Zealand. The dataset provides proxy climate data covering a period from 425 to -42 calendar years before present. It was published by NOAA National Centers for Environmental Information and last updated in 1992.

Use Cases

• Reconstruct past temperature or precipitation anomalies using the tree-ring width index as a climate proxy.
• Calibrate climate models by comparing the chronology data against other proxy records for the period 425 to -42 BP.
• Analyze growth response and climate sensitivity of the LIBI species (likely Libocedrus bidwillii) from the ITRDB site NEWZ059.
• Study long-term environmental trends in New Zealand by examining the time-series of annual tree-ring measurements.

Strengths

• Time series spans 467 years, from 425 to -42 calendar years BP.
• Data is curated and archived by the authoritative NOAA World Data Service for Paleoclimatology.

Limitations

• Temporal coverage ends at -42 BP (approximately 42 BCE), lacking recent centuries.
• Data is from a single site (NEWZ059), limiting spatial representativeness for New Zealand.
• The last update was in 1992, indicating the record has not been revised with modern methods for decades.

Provenance

Source

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

Collection Method

Tree-ring analysis (dendrochronology) from the ITRDB site NEWZ059.

Time Range

425 to -42 calendar years before present (BP).

Freshness

Last updated 1992-01-01; static historical archive.

Geography

Ahaura Recollection site, New Zealand.