Finnish Tree Ring Chronology from 361 to 33 BC

Tree ring width measurements from a Scots pine (PISY) chronology at Ilomantsi Sivakkovaara, Finland. The data provides annual climate proxy records covering 394 years, from 361 to 33 BC. The dataset was archived by NOAA NCEI's World Data Service for Paleoclimatology and last updated in 1983.

Use Cases

• Reconstruct past temperature or precipitation anomalies from annual tree ring width measurements.
• Calibrate and validate climate models using the high-resolution, annually-dated proxy record.
• Analyze the frequency of extreme growth years (narrow or wide rings) as indicators of historical climatic events.
• Cross-date and synchronize this PISY chronology with other regional tree ring series to build a master chronology.

Strengths

• Provides a 394-year annually-resolved climate proxy record.
• Data is curated and archived by the authoritative NOAA NCEI World Data Service for Paleoclimatology.

Limitations

• Temporal coverage is limited to a specific 394-year period in the centuries before present.
• The dataset was last updated in 1983, potentially lacking modern methodological refinements.
• Geographic scope is restricted to a single site (Ilomantsi Sivakkovaara) in Finland.

Provenance

Source

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

Collection Method

Tree ring analysis (dendrochronology) of Scots pine (Pinus sylvestris, PISY).

Time Range

361 to -33 calendar years BP (394 years total).

Freshness

Static archive last updated 1983-01-01.

Geography

Ilomantsi Sivakkovaara, Finland, Scandinavia.