Articles | Volume 20, issue 7
Hydrol. Earth Syst. Sci., 20, 2841–2859, 2016
https://doi.org/10.5194/hess-20-2841-2016
Hydrol. Earth Syst. Sci., 20, 2841–2859, 2016
https://doi.org/10.5194/hess-20-2841-2016

Research article 15 Jul 2016

Research article | 15 Jul 2016

Model-based study of the role of rainfall and land use–land cover in the changes in the occurrence and intensity of Niger red floods in Niamey between 1953 and 2012

Claire Casse et al.

Data sets

CPC Unified Gauge-Based Analysis of Global Daily Precipitation National Oceanic and Atmospheric Administration (NOAA) http://ftp.cpc.ncep.noaa.gov/precip/CPC_UNI_PRCP/GAUGE_GLB/

Precipitation - PERSIANN-CDR National Oceanic and Atmospheric Administration (NOAA) https://www.ncdc.noaa.gov/cdr/atmospheric/precipitation-persiann-cdr

AMMA-CATCH database CATCH http://bd.amma-catch.org/amma-catch2/main.jsf

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Short summary
Since 1950, the Niger River basin has overcome drastic changes. In Niamey city, the highest river levels and the longest flooded period ever recorded occurred in 2003, 2010, 2012 and 2013, with heavy casualties and property damage. The reasons for these changes, and the relative role of climate versus Land Use Land Cover changes are still debated and are investigated in this paper using observations and modelling. We conclude on the successive role of cover and then rainfall variability.