Characterization of West African Jet Streams and Their Association to ENSO Events and Rainfall in ERA-Interim 1979–2011

<table>ENSO and wind cross wavelet spectrum (a) 600 mb and (c) 850 mb and wavelet coherence (b) 600 mb and (d) 850 mb (in-phase pointing right, antiphase pointing left, leading by 90° pointing straight down; see text for details and interpretation). 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.</table>

Advances in Meteorology

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Figure 9

Figure 9: Characterization of West African Jet Streams and Their Association to ENSO Events and Rainfall in ERA-Interim 1979–2011 