Research Article

Regional Frequency Analysis of Extreme Dry Spells during Rainy Season in the Wei River Basin, China

Figure 10

The cross wavelet transforms between the ENSO events and AMDSL series in stations Huajianlin (a), Huanxian (b), Changwu (c), and Huaxian (d). The meanings of the symbol can be referred to Torrence and Compo [24].
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(b)
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(d)