Drought and Grain Crop Yields over the East European Plain under Influence of Quasibiennial Oscillation of Global Atmospheric Processes

Figure 7

Relative frequency ((a) and (b)) and average area (10⁶ km²) ((c) and (d)) of the anticyclones in May in the westward (a) and (c) and eastward (b) and (d) QBO phases.

(a)

(b)

(c)

(d)