The Classification of Synoptic-Scale Eddies at 850 hPa over the North Pacific in Wintertime

Figure 2

Spatial patterns of the first four leading EOF modes of the synoptic-scale eddy at 850 hPa in winter from 1948 to 2010 ((a) EOF1, (b) EOF2, (c) EOF3, and (d) EOF4, unit: gpm).

(a)

(b)

(c)

(d)