Articles | Volume 21, issue 9
https://doi.org/10.5194/hess-21-4591-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-21-4591-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
The paradoxical evolution of runoff in the pastoral Sahel: analysis of the hydrological changes over the Agoufou watershed (Mali) using the KINEROS-2 model
Laetitia Gal
CORRESPONDING AUTHOR
Geosciences Environnement Toulouse, Université de Toulouse, CNRS, IRD, Toulouse, France
Manuela Grippa
Geosciences Environnement Toulouse, Université de Toulouse, CNRS, IRD, Toulouse, France
Pierre Hiernaux
Geosciences Environnement Toulouse, Université de Toulouse, CNRS, IRD, Toulouse, France
Léa Pons
Geosciences Environnement Toulouse, Université de Toulouse, CNRS, IRD, Toulouse, France
Laurent Kergoat
Geosciences Environnement Toulouse, Université de Toulouse, CNRS, IRD, Toulouse, France
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- Rainfall-discharge relationship and water balance over the past 60 years within the Chari-Logone sub-basins, Lake Chad basin A. Mahamat Nour et al. 10.1016/j.ejrh.2021.100824
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- Sécheresse climatique et dynamique éolienne sur la côte nord du Sénégal. Sensibilité dunaire et estimation des débits massiques dans le Gandiolais S. NIANG 10.46711/naaj.2019.1.1.6
- Quantifying Sahel Runoff Sensitivity to Climate Variability, Soil Moisture and Vegetation Changes Using Analytical Methods E. Nkiaka et al. 10.1007/s41748-024-00464-3
- Conceptual Model Modification and the Millennium Drought of Southeastern Australia J. Hughes et al. 10.3390/w13050669
- Drought-induced regime shift and resilience of a Sahelian ecohydrosystem V. Wendling et al. 10.1088/1748-9326/ab3dde
- Unraveling the hydrology and sediment balance of an ungauged lake in the Sudano-Sahelian region of West Africa using remote sensing S. Ragettli et al. 10.5194/esurf-10-797-2022
- Analysis of Suspended Particulate Matter and Its Drivers in Sahelian Ponds and Lakes by Remote Sensing (Landsat and MODIS): Gourma Region, Mali E. Robert et al. 10.3390/rs9121272
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- The water resources of tropical West Africa: problems, progress, and prospects C. Ndehedehe 10.1007/s11600-019-00260-y
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- Coupling Remote Sensing and GIS with KINEROS2 Model for Spatially Distributed Runoff Modeling in a Himalayan Watershed S. Saran et al. 10.1007/s12524-020-01295-1
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- Weak sensitivity of the terrestrial water budget to global soil texture maps in the ORCHIDEE land surface model S. Tafasca et al. 10.5194/hess-24-3753-2020
- An Interdisciplinary Approach to Understand the Resilience of Agrosystems in the Sahel and West Africa L. Descroix et al. 10.3390/su16135555
- Experimental and modelling evidence of short-term effect of raindrop impact on hydraulic conductivity and overland flow intensity C. Mügler et al. 10.1016/j.jhydrol.2018.12.046
- Adapting pastoral breeding to global changes in West and Central tropical Africa: Review of ecological views P. Hiernaux & M. Assouma 10.19182/remvt.31893
- Is terrestrial water storage a useful indicator in assessing the impacts of climate variability on crop yield in semi-arid ecosystems? C. Ndehedehe et al. 10.1016/j.ecolind.2018.01.026
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2 citations as recorded by crossref.
Latest update: 20 Nov 2024
Short summary
The intense, prolonged Sahel drought has caused a widespread increase in surface runoff and surface waters like lakes or rivers, against all expectations. Using long-term observations and the Kineros2 hydrological model, we show that the runoff coefficient of the Agoufou watershed increased from ~ 0 to 5.5 % in 1950–2011. We attribute this phenomenon to a change in vegetation and soil surface properties, in response to the drought, rather than land–use change or rainfall regime intensification.
The intense, prolonged Sahel drought has caused a widespread increase in surface runoff and...