Fig. 1: Climate and Atlantic sea-level pressure (SLP) variability.
From: Split westerlies over Europe in the early Little Ice Age
a Correlation between SLP and (i) average precipitation at Genoa, Milan and Nice stations (G/M/N PP) (shades); (ii) Climate Prediction Center (CPC) Scandinavia index (SCAND) (contours) during September–February in 1950–2008 C.E. b Vectors: climatological winds at 200-mb level plus regression of 200-mb winds on SCAND index multiplied by two standard deviations of SCAND index during September-February in 1950–2008 C.E., indicating a positive SCAND condition. Shades: correlation between SCAND and ground precipitation during September-February in 1950–2008 C.E. The shades and contours indicate the correlation coefficient(s) above 90% confident level. Climate data are from 20th century reanalysis v3.
