Historical fluctuations in rainfall are summarized by Nicholson (1993)
for eight regions on the African continent: five in West Africa
(Sahelo-Sahara, Sahel, Soudan, Soudano-Guinean, and Guinea Coast ...
The annual time series of regional rainfall anomalies for Africa have
been constructed by Hulme using the global monthly precipitation
dataset held in the Climatic Research Unit (CRU) at the University ...
HAPEX-Sahel: the Hydrology-Atmosphere Pilot Experiment in the Sahel,
(The following text is an extract of : Geographical, biological and
remote sensing aspects of the Hydrologic Atmospheric ...