Évolution climatique du Bénin de 1950 à 2010 et son influence sur les eaux de surface. - Archive ouverte HAL Access content directly
Conference Papers Year : 2016

Climate change of Benin for the period 1950-2010 and its impact on surface water.

Évolution climatique du Bénin de 1950 à 2010 et son influence sur les eaux de surface.

Abstract

In West Africaand Benin in particular, variability / climate change affects the availability of surface water resources. Thus,this study aims to analyze the rainfall field of Benin from the fifty three (53) meteorological stations from 1950to 2010 and to detect the rainfall amounts and the average temperature of six synoptic stations and thehydrometric stations of Niger river in, Benin, Pendjari, Ouémé, Mono and Couffo. From the analysis a trend ofdeclining precipitation and of rising temperatures have been highlighted. This decrease is more pronounced inthe Sudanese area (north of 8 ° N) and in the sub-equatorial area (south of 8 ° N). This decrease of precipitationin the past thirty years has amplified 2-3 times or even four times the flow deficit in the course of Benin river.This decrease added to the environmental problems generates a rapid drying up of water resources, damagingthe availability and management of the surface water.
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Dates and versions

hal-01360108 , version 1 (05-09-2016)

Identifiers

  • HAL Id : hal-01360108 , version 1

Cite

Ernest Amoussou, S.H. Totin Vodounon, F.P. Cledjo, Y.B.S. Allagbe, J.S.A. Akognongbe, et al.. Évolution climatique du Bénin de 1950 à 2010 et son influence sur les eaux de surface.. 29ème Colloque de l'Association Internationale de Climatologie, Jul 2016, Besançon, France. pp.231-236. ⟨hal-01360108⟩
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