Swedish Tree Ring Chronology for Paleoclimate Reconstruction

Tree ring width measurements from a Scots pine site in Sweden provide a climate proxy record spanning 203 years. The data covers the period from 175 to -28 calendar years before present, calibrated for dendrochronological analysis. This archived study is maintained by the NOAA National Centers for Environmental Information under its World Data Service for Paleoclimatology.

Use Cases

• Calibrating regional climate models using the tree ring width time-series as a temperature/moisture proxy.
• Analyzing growth anomaly years within the 203-year chronology to identify extreme historical climate events.
• Cross-dating this Scots pine (PISY) chronology with other ITRDB series to validate regional climate reconstructions.
• Studying pre-industrial climate baseline conditions in Scandinavia from the calendar years before present data.

Strengths

• Time-series spans 203 calendar years, providing a multi-century climate record.
• Data is part of the authoritative International Tree Ring Data Bank (ITRDB SWED016).
• Sourced from a single species (Scots pine) at a defined site, reducing biological noise.

Limitations

• Sample size and replication depth per year are unknown, affecting statistical confidence.
• Temporal coverage ends at -28 BP, limiting analysis of the most recent centuries.
• Data was last updated in 1978, potentially lacking modern methodological refinements.

Provenance

Source

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

Collection Method

Tree ring cores collected and measured for width, archived as part of the International Tree Ring Data Bank.

Time Range

175 to -28 calendar years before present (BP).

Freshness

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Geography

Sweden, Scandinavia (specific site: Fjall Glaskogen Naturres).