New Zealand Tree Ring Chronology from 390 to 42 BCE

Tree ring width measurements from the Rahu Saddle site in New Zealand provide a 432-year paleoclimate record. The data covers the period from 390 to 42 years before present (BP), ending before the Common Era. This chronology was contributed by Xiong and archived by NOAA's World Data Service for Paleoclimatology.

Use Cases

• Reconstruct past temperature or precipitation anomalies by analyzing the tree ring width time-series.
• Calibrate radiocarbon dating curves using the dated tree ring sequence from this site.
• Compare the New Zealand tree ring chronology with other Southern Hemisphere records to identify broad climate patterns.
• Validate climate model simulations of past conditions for the New Zealand region using the proxy data.

Strengths

• Covers a continuous 432-year period from 390 to 42 BP.
• Sourced from the authoritative NOAA/NCEI World Data Service for Paleoclimatology.

Limitations

• The dataset was last updated in 1992, potentially missing modern reanalysis or calibration.
• Limited geographic scope to a single site (Rahu Saddle) in New Zealand.
• The raw tree ring measurement data and metadata details are not provided in the input.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology).

Time Range

390 to -42 calendar years BP (Before Present).

Freshness

null

Geography

New Zealand (specific site: Rahu Saddle).