Research Article
Characteristics of Lake Chad Level Variability and Links to ENSO, Precipitation, and River Discharge
Figure 5
Precipitation and lake level cross-wavelet spectra: (a) northern LCB; (b) southern LCB and wavelet coherence; (c) northern LCB; and (d) southern LCB (in-phase pointing right, anti-phase pointing left, leading by 90° pointing straight down). The thick contour enclosed regions are greater than 95% confidence for a red-noise process. The thin solid line indicates the “cone of influence,” where edge effects become important.
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