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DE RIDDER (NICO) / STOMPH (TJEERD JAN) / VAN DE GIESEN (NICK) - ARTICLE DE PERIODIQUE - 2005Measurements of surface runoff from uniform slopes of different lengths in West Africa have shown that longer slopes tend to have less runoff per unit of length than short slopes. The main reason for this scale effect is that once the rain stops, water on long slopes has more opportunity time to...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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AMISIGO (BARNABAS) / ANDAH (WINSTON) / ANDREINI (MARC) / FRIESEN (JAN) / VAN DE GIESEN (NICK) - ARTICLE DE PERIODIQUE - 2005Rainfall in West Africa is often typified as being subject to large inter-annual variability. For the Volta Basin, this variability is actually not very large. The coefficient of variation for rainfall is only 0.08 (1931-1995) with an average of 400 km3 year-1. Yet, a much higher coefficient of...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):
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ANDREINI (MARC) / VAN DE GIESEN (NICK) / VLEK (PAUL) - ARTICLE DE PERIODIQUE - 2002The geography of the Volta basin is briefly described. This is followed by an overview of water use developments in the two main riparian countries- , Ghana and Burkina Faso. Ghana's water use consists mainly of hydropower generation for the urbanized south whereas in upstream Burkina Faso...Ressource payante — PermalienFonds documentaire OIEauContributeur (s):