A record of tree-ring density and reconstruction of April–September temperatures in south-

A 757-year record of maximum latewood density derived from Scots pine trees in western Norway. The dataset includes a reconstruction of mean April–September temperatures for southern Norway, explaining 56% of the variability over the 1900–2008 calibration period. It was created by Helene Løvstrand Svarva and last updated in May 2026.

Use Cases

• Calibrating climate models based on historical temperature reconstructions mentioned in the description.
• Analyzing decadal and centennial temperature trends in Fennoscandia based on the tree-ring density record.
• Investigating the divergence between tree-ring width and density trends using ensemble empirical mode decomposition analysis as referenced.
• Studying regional climate variability in southern Norway based on the reconstruction's high correlation (>0.7) in western regions.

Strengths

• The reconstruction explains 56% of temperature variability over the 1900–2008 calibration period.
• The record spans 757 years, from AD 1252 to 2008.
• Correlations with temperature exceed 0.7 for the westernmost regions of Norway.

Limitations

• The reconstruction's robustness is noted to decrease before approximately AD 1450 due to a drop in inter-series correlation and replication.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Helene Løvstrand Svarva via figshare

Collection Method

Maximum latewood density derived by X-ray densitometry from Scots pine (Pinus sylvestris L.) trees.

Time Range

AD 1252–2008

Freshness

Last updated 2026-05-26 19:31:11; freshness should be verified.

Geography

Western Norway (∼750 m a.s.l.), reconstruction for southern Norway