Analysis of the recurrence of floods in the city of Tambacounda, Senegal, in the context of climate change
Mbagnick Faye*, Dome Tine, Ababacar Fall, Cheikh Sadibou Faye, Gallo Niang, Modou Mbaye, Moctar Diouf
Abstract. The climate is now subject to wide variations. Storms with torrential rains are noted in the western USA, acute droughts in the Sahel, floods in Bangladesh, China, India and Vietnam, and rising temperatures leading to thaws in the Arctic and Antarctic. Climate models and observations reveal the frequency of extreme events and the resumption of rains in recent years. This increase in rainfall, which brings hope to developing countries dependent on rain-fed agriculture, is upsetting African cities by the recurrence of the floods it generates. These cities, resembling large villages, lack everything: failure or lack of sanitation networks, lack of adequate urban policy. The city of Tambacounda is under-equipped and facing the problem of flooding. After the rain, housing, infrastructure and roads are submerged by storm water. Analysis of control strategies shows that serious measures are not being taken to eradicate this scourge in the city. The control techniques (totally incoherent and totally disorderly) developed by the population revolve around the filling of ravines and low parts (45% of respondents), the installation of sandbags (40%), serving as, the storefront of dwellings and digging trenches to facilitate storm runoff (15%).The only reliable and effective technique (ONAS remediation plan) defined by the State is still in the draft stage.
Keywords: Analytic Hierarchy Process (AHP), Climate change, flooding, GIS, recurrence
Cite in Nipponpub Style:
Faye, M., Tine, D., Fall, A., Faye, C.S., Niang, G., Mbaye, M., Diouf, M. (2020). Analysis of the recurrence of floods in the city of Tambacounda, Senegal, in the context of climate change. Nipp. J. Environ. Sci., 1(6), 1016. https://doi.org/10.46266/njes.1016