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AuthorDescroix, Luc
AuthorGuichard, Françoise
AuthorGrippa, Manuela
AuthorLambert, Laurent A.
AuthorPanthou, Gérémy
AuthorMahé, Gil
AuthorGal, Laetitia
AuthorDardel, Cécile
AuthorQuantin, Guillaume
AuthorKergoat, Laurent
AuthorBouaïta, Yasmin
AuthorHiernaux, Pierre
AuthorVischel, Théo
AuthorPellarin, Thierry
AuthorFaty, Bakary
AuthorWilcox, Catherine
AuthorAbdou, Moussa Malam
AuthorMamadou, Ibrahim
AuthorVandervaere, Jean-Pierre
AuthorDiongue-Niang, Aïda
AuthorNdiaye, Ousmane
AuthorSané, Youssouph
AuthorDacosta, Honoré
AuthorGosset, Marielle
AuthorCassé, Claire
AuthorSultan, Benjamin
AuthorBarry, Aliou
AuthorAmogu, Okechukwu
AuthorNka Nnomo, Bernadette
AuthorBarry, Alseny
AuthorPaturel, Jean-Emmanuel
Available date2018-06-28T07:05:22Z
Publication Date2017
Publication NameWater
CitationDescroix L, Guichard F, Grippa M, Lambert LA, Panthou G, Mahé G, Gal L, Dardel C, Quantin G, Kergoat L, Bouaïta Y, Hiernaux P, Vischel T, Pellarin T, Faty B, Wilcox C, Malam Abdou M, Mamadou I, Vandervaere J-P, Diongue-Niang A, Ndiaye O, Sané Y, Dacosta H, Gosset M, Cassé C, Sultan B, Barry A, Amogu O, Nka Nnomo B, Barry A, Paturel J-E. Evolution of Surface Hydrology in the Sahelo-Sudanian Strip: An Updated Review. Water. 2018; 10(6):748.
ISSN2073-4441
URIhttp://hdl.handle.net/10576/6774
AbstractIn the West African Sahel, two paradoxical hydrological behaviors have occurred during the last five decades. The first paradox was observed during the 1968–1990s ‘Great Drought’ period, during which runoff significantly increased. The second paradox appeared during the subsequent period of rainfall recovery (i.e., since the 1990s), during which the runoff coefficient continued to increase despite the general re-greening of the Sahel. This paper reviews and synthesizes the literature on the drivers of these paradoxical behaviors, focusing on recent works in the West African Sahelo/Sudanian strip, and upscaling the hydrological processes through an analysis of recent data from two representative areas of this region. This paper helps better determine the respective roles played by Land Use/Land Cover Changes (LULCC), the evolution of rainfall intensity and the occurrence of extreme rainfall events in these hydrological paradoxes. Both the literature review and recent data converge in indicating that the first Sahelian hydrological paradox was mostly driven by LULCC, while the second paradox has been caused by both LULCC and climate evolution, mainly the recent increase in rainfall intensity.
Languageen
PublisherMDPI
SubjectSahel
land use/land cover changes
water holding capacity
climate change
hydrological paradox
re-greening
TitleEvolution of Surface Hydrology in the Sahelo-Sudanian Strip: An Updated Review
TypeArticle
Pagination1-37
Issue Number6
Volume Number10
ESSN2073-4441


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