Articles | Volume 384
https://doi.org/10.5194/piahs-384-255-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-384-255-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impact of climate change on water availability in the Oueme catchment at the outlet of the Save's bridge (Benin, West Africa)
Amedée Chabi
CORRESPONDING AUTHOR
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Laboratoire de Géosciences de l’Environnement et Applications/Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Abomey, Benin
Esdras Babadjidé Josué Zandagba
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Laboratoire de Géosciences de l’Environnement et Applications/Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Abomey, Benin
Ezekiel Obada
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Laboratoire de Géosciences de l’Environnement et Applications/Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Abomey, Benin
Eliezer Iboukoun Biao
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Laboratoire de Géosciences de l’Environnement et Applications/Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Abomey, Benin
Eric Adéchina Alamou
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Laboratoire de Géosciences de l’Environnement et Applications/Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Abomey, Benin
Abel Afouda
Laboratory of Applied Hydrology, National Water Institut, Abomey-Calavi, Benin
Related authors
Eliézer Iboukoun Biao, Ezéchiel Obada, Eric Adéchina Alamou, Josué Esdras Zandagba, Amédée Chabi, Ernest Amoussou, Julien Adounkpe, and Abel Afouda
Proc. IAHS, 384, 57–62, https://doi.org/10.5194/piahs-384-57-2021, https://doi.org/10.5194/piahs-384-57-2021, 2021
Esdras Babadjidé Josué Zandagba, Eric Adéchina Alamou, Ezechiel Obada, Amédée Chabi, Eliézer Iboukoun Biao, and Abel Afouda
Proc. IAHS, 384, 93–98, https://doi.org/10.5194/piahs-384-93-2021, https://doi.org/10.5194/piahs-384-93-2021, 2021
Short summary
Short summary
Knowing the concentration of the pollutant field distribution in time and space contributes significantly to the prediction of exceptional phenomena. To this we simulate the transport and dispersion of salt at Nokoue Lagoon. Results showed that in flood period the freshwater inflows produce a net seaward transport, while in low water period the tides lead to periodic seaward and landward transport. Freshwater inflow plays a major role in flood period and tide in low water period on the lagoon.
Elias Nkiaka, Robert G. Bryant, Joshua Ntajal, and Eliézer I. Biao
Hydrol. Earth Syst. Sci., 26, 5899–5916, https://doi.org/10.5194/hess-26-5899-2022, https://doi.org/10.5194/hess-26-5899-2022, 2022
Short summary
Short summary
Achieving water security in poorly gauged regions is hindered by a lack of in situ hydrometeorological data. In this study, we validated nine existing gridded water resource reanalyses and eight evapotranspiration products in eight representative gauged basins in Central–West Africa. Our results show the strengths and and weaknesses of the existing products and that these products can be used to assess water security in ungauged basins. However, it is imperative to validate these products.
Djigbo Félicien Badou, Audrey Adango, Jean Hounkpè, Aymar Bossa, Yacouba Yira, Eliezer Iboukoun Biao, Julien Adounkpè, Eric Alamou, Luc Ollivier C. Sintondji, and Abel Akambi Afouda
Proc. IAHS, 384, 187–194, https://doi.org/10.5194/piahs-384-187-2021, https://doi.org/10.5194/piahs-384-187-2021, 2021
Short summary
Short summary
Knowledge of rainfall statistical behaviour is a prerequisite to designing rainwater drainage facilities. In West Africa, most practitioners use the Gumbel distribution regardless of rainfall statistical behaviour. This study quantifies biases induced by the use of the Gumbel distribution. It was found that the use of the Gumbel distribution instead of appropriate distributions leads to an underestimation (−45.9 %) of annual daily rainfall maxima and thus to an uncertain design of facilities.
Jean Hounkpè, Djigbo F. Badou, Aymar Y. Bossa, Yacouba Yira, Julien Adounkpè, Eric A. Alamou, Emmanuel A. Lawin, Luc O. C. Sintondji, Abel A. Afouda, and Ernest Amoussou
Proc. IAHS, 384, 219–224, https://doi.org/10.5194/piahs-384-219-2021, https://doi.org/10.5194/piahs-384-219-2021, 2021
Short summary
Short summary
Floods are natural disasters that widely affect people, goods, and ecosystems. Some efforts have been made in predicting floods at a short-term range. However, the usefulness of flood prediction increases as the time lead increases. This work investigated covariates useful for flood prediction several months ahead. Very good relationships were found between flood discharge and some climate indexes which could serve as a basis for seasonal flood forecasting in West Africa.
Eliézer Iboukoun Biao, Ezéchiel Obada, Eric Adéchina Alamou, Josué Esdras Zandagba, Amédée Chabi, Ernest Amoussou, Julien Adounkpe, and Abel Afouda
Proc. IAHS, 384, 57–62, https://doi.org/10.5194/piahs-384-57-2021, https://doi.org/10.5194/piahs-384-57-2021, 2021
Esdras Babadjidé Josué Zandagba, Eric Adéchina Alamou, Ezechiel Obada, Amédée Chabi, Eliézer Iboukoun Biao, and Abel Afouda
Proc. IAHS, 384, 93–98, https://doi.org/10.5194/piahs-384-93-2021, https://doi.org/10.5194/piahs-384-93-2021, 2021
Short summary
Short summary
Knowing the concentration of the pollutant field distribution in time and space contributes significantly to the prediction of exceptional phenomena. To this we simulate the transport and dispersion of salt at Nokoue Lagoon. Results showed that in flood period the freshwater inflows produce a net seaward transport, while in low water period the tides lead to periodic seaward and landward transport. Freshwater inflow plays a major role in flood period and tide in low water period on the lagoon.
Cited articles
Afouda, A. and Alamou, E.: Hydrologique basé sur le principe de moindre
action (MODHYPMA), Ann. Sci. Agron. Bénin, 13, 23–45, 2010.
Afouda, A., Ould Baba Sy, M., Gaye, A. T., Cabral, A., Nazoumou, Y., Compaore,
A. J., and Sanoussi, R.: Impact of Climate Change and Variability on Water
Resources in West African Watersheds, What Are the Prospects?, Synthesis
Report-Writeshop: Dakar, Senegal, 2007.
Akognongbe, A.: Contribution à l'étude de la caractérisation
hydropluviométrique avec le modèle GR4J sur le bassin de
l'Ouémé à Savè et Atchérigbé, Mémoire de
maîtrise en géographie, UAC., 79 pp., 2007.
Bergström, S. and Forsman, A.: Development of a conceptual deterministic
rainfall runoff model, Nordic Hydrology, 14, 147–170, 1973.
Boughton, W. C.: A hydrograph-based model for estimating the water yield of
ungauged catchments, in: Proceedings of the 1993 Hydrology and Water
Resources Conference, Institution of Engineers, Australia, National
Conference Publication no., 93/14, 317–324, 1993.
Boyle, D.: Multicriteria calibration of hydrological models, PhD thesis,
Dep. of Hydrol. and Water Resour., Univ. Of Ariz., Tucson, 2001.
Chiew, F. H. S. and Siriwardena, L.: Estimation of SIMHYD parameter values for
application in ungauged catchments, in: MOD-SIM 2005 International Congress
on Modelling and Simulation, Modelling and Simulation Society of Australia
and New Zealand, Melbourne, Australia, 2883–2889, 2005.
IPCC: Impact, adaptation and vulnerability. Contribution of working Group
II to the fourth assessment report of the intergovnmental Panel on Climate
Change, 2007.
IPCC: Impacts, Adaptation, and vulnerability, Contribution of Working Group
II to the Fifth Assessment Report of the Intergovernmental Panel on Climate
Change, Cambridge University Press, Cambridge, United Kingdom and New York,
NY, USA, 2014.
Nash, J. E. and Sutcliffe, J. V.: River flow forecasting through conceptual
models part I – A discussion of principles, J. Hydrol., 10, 282–290, 1970.
Obada, E., Alamou, A. E., Chabi, A., Zandagba, J., and Afouda, A.: Trends and
Changes in Recent and Future Penman-Monteith Potential Evapotranspiration in
Benin, Article published in Hydrology (MDPI), 18 pp, 2017.
Paturel, J. E. and Mahe, G.: 1896–2006 Sahelian annual rainfall variability and runoff increase of Sahelian RiversVariabilité des pluies annuelles au Sahel entre 1896 et 2006 et augmentation des écoulements des rivières sahéliennes, Comptes Rendus, Geosciences, 341, 538–546, https://doi.org/10.1016/j.crte.2009.05.002, 2009.
Perrin, C.: Vers une amélioration d'un modèle global pluie-débit au travers d'une approche comparative, Thèse de Doctorat, INPG: Grenoble, Cemagref, Antony, 530 pp.,
2000.
Quae, J.-F. S.: S'adapter au changement climatique, Agriculture
écosystèmes et territoires, France, EdiTionS QuAE, 282 pp., 2013.
Sennikovs, J. and Bethers, U.: Statistical downscaling method of regional
climate model results for hydrological modelling, in: 18 th World
IMACS/MODSIM Congress, Australia, 2009.
Zandagba, J.: Impact des changements climatiques sur les ressources en eau du bassin de l'oueme à Savè, Master of Science en Hydrologie et Gestion Intégrée
des Ressources à la CIPMA-Chaire UNESCO-Bénin/ Université
d'Abomey-Calavi (UAC), République du Bénin, 2012.
Short summary
The objective of this study is to assess the impact of climate change on water availability in Oueme catchment at Savè. Precipitation provided by 3 regional climate models was analyzed. Bias in these data was corrected using the Empirical Quantile Mapping method before being used as input to hydrological models: AWBM, ModHyPMA, HBV, GR4J, SimHyd, Hymod. The simulation with the HIRHAM5 data as inputs of models showed flows that vary at the horizons 2025, 2055, 2085 under scenarios RCP(4.5_8.5).
The objective of this study is to assess the impact of climate change on water availability in...