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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology
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Volume 370
Proc. IAHS, 370, 117–123, 2015
https://doi.org/10.5194/piahs-370-117-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Proc. IAHS, 370, 117–123, 2015
https://doi.org/10.5194/piahs-370-117-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

  11 Jun 2015

11 Jun 2015

Analysis of hydrological changes and flood increase in Niamey based on the PERSIANN-CDR satellite rainfall estimate and hydrological simulations over the 1983–2013 period

C. Casse and M. Gosset

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Short summary
A dramatic increase in the frequency and intensity of floods due to the Niger River has been observed in the last decade in Niamey. This paper analyses how changes in rainfall may explain this flood intensification, based on a 30 year long series of satellite rainfall and a hydrological model. We show that the salient changes in the mean decadal hydrograph between 1983 and 2013 are well mimicked by the simulations. This implyes that rainfall is the first driver to the observed changes.
A dramatic increase in the frequency and intensity of floods due to the Niger River has been...
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