Spatial-Temporal Variation of Aridity Index of China during 1960–2013

Figure 7

Wavelet variance diagrams of the mean centers.

(a) Aridity index = 1 (longitude)

(b) Aridity index = 1 (latitude)

(c) Aridity index = 1.5 (longitude)

(d) Aridity index = 1.5 (latitude)

(e) Aridity index = 4 (longitude)

(f) Aridity index = 4 (latitude)