Advances in Meteorology / 2019 / Article / Fig 4

Research Article

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

Figure 4

Spatial distribution of variance (contour) and cycles (shaded) of Iran’s thunderstorms during various periods. (a) 1961–1970, (b) 1971–1980, (c) 1981–1990, (d) 1991–2000, (e) 2001–2010, and (f) 1960–2010.

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