New Zealand Tree Ring Chronology for Paleoclimate Reconstruction

Tree ring width measurements from a site in New Zealand, covering a period from 276 to -42 calendar years before present. The data is archived by the NOAA National Centers for Environmental Information under its World Data Service for Paleoclimatology. The record was last updated in 1992.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing tree ring width variations over time.
• Calibrate radiocarbon dating curves using the dated tree ring chronology.
• Study climate events and trends in New Zealand over the last few centuries using the annual-resolution proxy.
• Compare this Southern Hemisphere tree ring series with Northern Hemisphere records to investigate inter-hemispheric climate linkages.

Strengths

• Covers a specific 318-year period (276 to -42 BP) for climate analysis.
• Provides annual-resolution proxy data for high-frequency climate signal detection.

Limitations

• The dataset's last update was in 1992, indicating potential staleness versus modern collections.
• Limited geographic scope to a single site in New Zealand, reducing regional representativeness.
• Unknown sample size (row count) and measurement precision details.

Provenance

Source

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

Collection Method

Tree ring core sampling and width measurement (dendrochronology).

Time Range

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

Freshness

null

Geography

New Zealand.