Harmonic Analysis of the Spatiotemporal Pattern of Thunderstorms in Iran (1961–2010)

Figure 2

Spatial distribution of mean (contour), center of gravity (+), and anomalies (shaded) of Iran’s thunderstorms in different periods. (a) 1961–1970, (b) 1971–1980, (c) 1981–1990, (d) 1991–2000, (e) 2001–2010, and (f) 1960–2010.

(a)

(b)

(c)

(d)

(e)

(f)