Articles | Volume 20, issue 4
https://doi.org/10.5194/hess-20-1599-2016
© Author(s) 2016. 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-20-1599-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
26 Apr 2016
Research article |
| 26 Apr 2016
Hydrological, chemical, and isotopic budgets of Lake Chad: a quantitative assessment of evaporation, transpiration and infiltration fluxes
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
Julio Goncalves
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
Pierre Deschamps
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
Christine Vallet-Coulomb
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
Bruno Hamelin
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
Jean-Claude Doumnang
Laboratoire de Géologie, Géomorphologie et Télédétection,
Faculté des Sciences Exactes et Appliquées, Université de NDjaména, NDjaména, Republic of Chad
Florence Sylvestre
CEREGE UM34, Aix-Marseille Université, CNRS, IRD, Collège de France, 13545 Aix en Provence, France
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Short summary
Flows out of Lake Chad are constrained by a modeling of the hydrological, chemical, and isotopic budgets, based on a review of existing data along with new data. This innovative approach allows one to determine the proportions of evaporation, transpiration, and infiltration out of the lake while the two last flows are often neglected in semi-arid environments. Moreover, it allows to investigate the lake hydrological and chemical regulations under the large climatic changes in Sahel since 1950.
Flows out of Lake Chad are constrained by a modeling of the hydrological, chemical, and isotopic...
