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Mid-Century Daily Discharge Scenarios Based on Climate and Land Use Change in Ouémé River Basin at Bétérou Outlet by Emmanuel, Lawin; NâTcha MâPo, Yà ̈kambà ̈ssoun; Biaou, Chabi; Komi, Kossi; Hounguà ̈, Rita; Yao, Kouassi; Afouda, Abel is a Environmental Science article available to read on EtoBox.

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This study evaluates the impacts of land use and climate changes on daily discharge in Ouémé river basin at Bétérou outlet. Observed rainfall and temperature over 2002–2008 and land use data of 2003 and 2007 were used. Corrected rainfall and temperature data, under RCP4.5 and RCP8.5 scenarios from regional climate model REMO were considered. Two land use scenarios from RIVERTWIN project were used. The first one, Land Use A (LUA), is characterized by stronger economic development, controlled urbanization, implementation of large-scale irrigation schemes, and 3.2% population growth per year. The other one, Land Use B (LUB), is characterized by a weak national economy, uncontrolled settlement, and farmland development as well as 3.5% population growth per year. Four climate and land use combined scenarios (LUA + RCP4.5, LUA + RCP8.5; LUB + RCP4.5, and LUB + RCP8.5) were used for forcing LISFLOOD hydrological model to estimate future discharges at 2050. As a result, during calibration and validation, the LISFLOOD model showed high ability to reproduce historical flows of Ouémé River at Bétérou outlet with Nash–Sutcliffe efficiencies greater than 90%. Future discharges simulations show

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Author

Emmanuel, Lawin; NâTcha MâPo, Yà ̈kambà ̈ssoun; Biaou, Chabi; Komi, Kossi; Hounguà ̈, Rita; Yao, Kouassi; Afouda, Abel

Publisher

MDPI AG; Multidisciplinary Digital Publishing Institute (MDPI); Basel: MDPI AG, 2014- (ISSN 2306-5338)

Published

2018

Language

EN

Field

Environmental Science (Physical Sciences)