Spruce trees at Saltwater Pond, Labrador, Canada. These centuries-old white spruce trees were sampled to help produce the Saltwater Pond paleotemperature record. Photo credit: Jonathan Overpeck.
56°30'N 61°57'W

Reference: Jacoby and D'Arrigo, unpubl.

Proxy Type: tree-ring widths

Standardized climate record reflecting surface air temperature. Red indicates temperatures greater than one standard deviation warmer than average for the reference period (1901-1960), whereas dark blue indicates at least one standard deviation colder than this average. All series presented as five-year averages (see paper for more explanation).