Upper Soper Lake, southern Baffin Island, Canada. A primary source of paleoclimatic data from the Arctic are lake sediments. Upper Soper Lake contains annually-laminated sediments that have been used to reconstruct early summer (June) surface air temperatures back several centuries. View is from the air, looking north. Photo credit: Peter Sauer.
62°55'N 69°53'W

Reference: Hughen et al., 1997

Proxy Type: dark lamination thickness

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).