1979_Groveman_NH_temp

Graph from: Groveman B, Landsberg H. Simulated northern hemisphere temperature departures 1579–1880. Geophysical Research Letters 1979, 6:767–769.

Groveman and Landsberg used 20 series of mostly instrumental data including Manley’s CET and 2 tree ring series across northern Europe and northern North America, but also Greenland, Iceland and Japan.

Graph from: Groveman B, Landsberg H. Simulated northern hemisphere
temperature departures 1579–1880. Geophysical
Research Letters 1979, 6:767–769.

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