Arctic-Mid-Latitude Linkages in a Nonlinear Quasi-Geostrophic Atmospheric Model

Figure 8

Histograms of corresponding PC time series of geopotential height at the three model levels: upper level (a), middle level (b), and lower level (c). HICE (in red) and LICE (in blue) correspond to the model runs with high and low Arctic sea-ice-cover conditions, respectively. Overlap in the frequency of occurrence between HICE and LICE is marked in purple.

(a)

(b)

(c)