Articles | Volume 384
https://doi.org/10.5194/piahs-384-283-2021
© 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-384-283-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Pre-conference publication
| 
16 Nov 2021
Pre-conference publication |
| 16 Nov 2021
| 16 Nov 2021
Future changes in precipitation, evapotranspiration and streamflows in the Mono Basin of West Africa
Institute of Mathematics and Physical Sciences, University of
Abomey-Calavi, BP 613 Porto-Novo, Benin
Lawin E. Agnidé
Applied Hydrology Laboratory, University of Abomey-Calavi, BP 4521
Cotonou, Benin
Kodja Domiho Japhet
Laboratory Pierre Pagney, Climate, Water, Ecosystems and Development,
University of Abomey-Calavi, BP 4521 Cotonou, Benin
Amoussou Ernest
Laboratory Pierre Pagney, Climate, Water, Ecosystems and Development,
University of Abomey-Calavi, BP 4521 Cotonou, Benin
Vissin Expédit
Laboratory Pierre Pagney, Climate, Water, Ecosystems and Development,
University of Abomey-Calavi, BP 4521 Cotonou, Benin
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Proc. IAHS, 383, 69–78, https://doi.org/10.5194/piahs-383-69-2020, https://doi.org/10.5194/piahs-383-69-2020, 2020
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The first reason which led to study this area is that Mono basin shows a sharp increase in population and local economic growth generally projected to accelerate. Another reason is that the Mono basin is already facing the consequences of climate change, with recurrent and localized droughts and flash floods years. These conditions would expected to be exacerbated in the future. Such results could help to anticipate the future impacts of climate changes on agriculture, water resources.
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Cited articles
Ague, A. I., Afouda, A., and Lanhoussi, F. : Etude Comparative D’un Modele Conceptuel Global (gr4j) Et D’un Modele Semi-distribue (geosfm) Sur Le Bassin Versant De L’oueme A Save (benin, Afrique De L’ouest), Le Journal de l’Eau et de l’Environnement (LJEE), 13, 2–8, 2014.
Allen, R., Pereira, L., Raes, D., and Smith, M.:
Crop evapotranspiration guidelines for computing crop requirements, FAO Irrig. Drain. Report modeling and application, J. Hydrol., 285, 19–40, 1998.
Amoussou, E., Tramblay, Y., Totin, H. S. V., Mahé, G., and Camberlin, P.: . Dynamics and modelling of floods in the river basin of Mono in Nangbeto, Togo/Benin, Hydrolog. Sci. J., 59, 2060–2071, https://doi.org/10.1080/02626667.2013.871015, 2014.
Batablinlè, L., Lawin, E., and Agnide, C. M.: Africa Cordex Simulations
Projection of Future Temperature, Precipitation, Frequency and Intensity
Indices Over Mono Basin in West Africa, J. Earth Sci. Clim. Change, 9, 490,
https://doi.org/10.4172/2157-7617.1000490, 2018.
Deutsches Klimarechenzentrum (DKRZ): Homepage, available at: https://esgf-data.dkrz.de/projects/esgf-dkrz/,
last access: 3 August 2017.
Giertz, S. and Diekkrüger, B.: Analysis of the hydrological processes in a small headwater catchment in Benin (West Africa), Physics and Chemistry of the Earth, Parts A/B/C, 28, 1333–1341, https://doi.org/10.1016/j.pce.2003.09.009, 2003.
GNU Operating System: GNU General Public License, available at: http://www.gnu.org/copyleft/gpl.html, last access: August 2021.
Hargreaves, G. and Samini, Z.: Reference crop evapotranspiration from temperature,
Appl. Eng. Agric., 1, 96–99, 1985.
Intergovernmental Panel on Climate Change (IPCC): Climate Change
2007: The Physical Science Basis. Contribution of Working Group I to the
Fourth Assessment Report of the Intergovernmental Panel on Climate Change,
available at: http://www.ipcc.ch/publications_and_data/ar4/syr/en/contents.html (last access: 12 September 2019),
2007.
Jung, M., Reichstein, M., Ciais, P., Seneviratne, S., Sheffield, J., Goulden, M., Bonan,
G., Cescatti, A., Chen, J., de Jeu, R., Dolman, A., Eugster, W., Gerten, D., Gianelle, D.,
Gobron, N., Heinke, J., Kimball, J., Law, B., Montagnani, L., Mu, Q., Mueller, B., Oleson,
K., Papale, D., Richardson, A., and Roupsard, O.: Recent decline
in the global land evapotranspiration trend due to limited moisture supply,
Nature, 467 951–954, 2010.
Li, M., Chu, R., Shen, S., and Islam, A. R. M. T.: Quantifying Climatic Impact on
Reference Evapotranspiration Trends in the Huai River Basin of Eastern
China, Water, 10, 144, https://doi.org/10.3390/w10020144, 2018.
Liu, B., Ma, Z., Feng, J., and Wei, R.: The relationship between pan evaporation
and actual evapotranspiration in Xinjiang since 1960, Acta Geogr. Sin., 63,
1131–1139, 2008.
Perrin, C., Michel, C., and Andréassian, V.: Does a large number of
parameters enhance model performance? Comparative assessment of common
catchment model structures on 429 catchments, J. Hydrol., 242, 275–301, 2001.
Terink, W., Immerzeel, W. W., and Droogers, P.: Climate change projections of precipitation and reference evapotranspiration for the Middle East and Northern Africa until 2050, Int. J. Climatol., 33, 3055–3072, 2013.
Short summary
The impact of climate change on precipitation and water availability is of major concern for policy makers in the Mono Basin of West Africa, whose economy mainly depends on rainfed agriculture and hydropower generation. The objective of this study is to project rainfall, flows and evapotranspiration (ET) in the future period and understand their changes across Mono River Basin.
The impact of climate change on precipitation and water availability is of major concern for...
