Opposite Effects of ENSO on the Rainfall over the Northern and Equatorial Great Horn of Africa and Possible Causes

Figure 9

Climatological (a) 200-hPa wind (streamline), (c) 850-hPa wind (vector in m/s) and rainfall (shaded in mm month⁻¹), and (e) 850-hPa divergence (shaded in 10e6 s⁻¹) in JJAS. The difference of (b) 200-hPa wind (streamline), (d) 850-hPa wind (vector in m s⁻¹), rainfall (shaded in mm/month), and (f) 850-hPa divergence (shaded in 10e6 s⁻¹) in JJAS between El Niño and La Niña years. The magnitudes of wind are shaded in (a) and (b). The red box marked in each panel represents the JJAS region.

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