1997
DOI: 10.1016/s0022-1694(96)03069-7
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Climatic variability in humid Africa along the Gulf of Guinea Part II: an integrated regional approach

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Cited by 76 publications
(50 citation statements)
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“…In sub-Saharan Africa, many authors have demonstrated, in the hydrometeorological series, a dry phase which began towards the 1970s. In this region, a decrease in several water budget elements has been noted: annual rainfall (Hubert & Carbonnel, 1987;Moron, 1994;Mahé & Olivry, 1995;Paturel et al, 1995Paturel et al, , 1997Servat et al, 1997Servat et al, , 1999Hubert et al, 1998;Tarhule & Woo, 1998); number of rainy days Servat et al, 1997Servat et al, , 1999Houndénou & Hernandez, 1998;Tarhule & Woo, 1998); heavy rainfall intensities (Houndénou & Hernandez, 1998;Tarhule & Woo, 1998); river flows (Sircoulon, 1987;Mahé & Olivry, 1995;Hubert et al, 1998;Opoku-Ankomah & Amisigo, 1998); lake levels (Sircoulon, 1987); and duration of rainfall season (Bello, 1998;Servat et al, 1999).…”
Section: Introductionmentioning
confidence: 97%
“…In sub-Saharan Africa, many authors have demonstrated, in the hydrometeorological series, a dry phase which began towards the 1970s. In this region, a decrease in several water budget elements has been noted: annual rainfall (Hubert & Carbonnel, 1987;Moron, 1994;Mahé & Olivry, 1995;Paturel et al, 1995Paturel et al, , 1997Servat et al, 1997Servat et al, , 1999Hubert et al, 1998;Tarhule & Woo, 1998); number of rainy days Servat et al, 1997Servat et al, , 1999Houndénou & Hernandez, 1998;Tarhule & Woo, 1998); heavy rainfall intensities (Houndénou & Hernandez, 1998;Tarhule & Woo, 1998); river flows (Sircoulon, 1987;Mahé & Olivry, 1995;Hubert et al, 1998;Opoku-Ankomah & Amisigo, 1998); lake levels (Sircoulon, 1987); and duration of rainfall season (Bello, 1998;Servat et al, 1999).…”
Section: Introductionmentioning
confidence: 97%
“…Initially observed and studied in the Sahelian regions, this drought also appeared in wetter regions, near the Gulf of Guinea (Sircoulon, 1976;Nicholson, 1985;Hubert & Carbonnel, 1987;Nicholson et al, 1988;Hubert et al, 1989;Demarée, 1990;Mahé & Citeau, 1993;Paturel et al, 1997Paturel et al, , 1998Servat et al, 1997a,b;Mahé et al, 2001b;L'Hôte et al, 2002). The rainfall deficit, observed over several consecutive years, has reduced flows of the region (Sircoulon, 1987;Sutcliffe & Knot, 1987;Olivry et al, 1993;Mahé & Olivry, 1991, 1999Aka et al, 1996;Servat et al, 1997c;Fanta et al, 2001).…”
Section: Introductionmentioning
confidence: 99%
“…Le programme ICC ARE (Identification et Conséquences d'une variabilité du Climat en AfRique de l'ouest et centrale non sahElienne) mené par l'ORSTOM au sein du projet FRIEND-AOC du PHI de l'UNESCO (Servat, 1994) a permis d'identifier une fluctuation climatique en Afrique non sahélienne vers la fin des années 1960 et le début des années 1970 (Aka et al, 1996;Servat et al, 1996;Paturel et al, 1997;Servat et al, 1997;Gautier et al, 1998). Cette évolution du climat se traduit La discussion concernant cel article est ouverte jusqu 'au l juin 1999 par des changements notables, à la baisse, au sein des séries chronologiques pluviométriques.…”
Section: Introductionunclassified