Characterization of West African Jet Streams and Their Association to ENSO Events and Rainfall in ERA-Interim 1979–2011
Figure 8
ENSO and wind cross wavelet spectrum (a) 250 mb and (c) 500 mb and wavelet coherence (b) 250 mb and (d) 500 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.
