Recent Trends in the Recurrence of North Atlantic Atmospheric Circulation Patterns

Figure 5

Average daily number of good analogues for the winter (DJF: panel (a)) and summer (JJA: panel (b)). The horizontal dotted lines indicate the mean value for all years. The red dashed line is the linear regression of the number of good analogues with time. The vertical dashed lines for panel (a) indicate the five reference winters (1969, 1989, 1990, 2010, and 2014).

(a)

(b)