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

Figure 1

Wintertime (DJF) extratropical nonzonal diabatic heating (W/m²) at ((a), (b), and (c)) 300 and ((d), (e), and (f)) 700 hPa derived from ERA-Interim reanalysis. At each row, the figures correspond to the low ((a) and (d)) and high ((b) and (e)) Arctic sea-ice-cover conditions and ((c) and (f)) to their difference (low minus high).

(a)

(b)

(c)

(d)

(e)

(f)