GEOSPATIAL TOOLS FOR PREVENTION OF URBAN FLOODS CASE STUDY: RIVER OF EL MALEH (CITY OF MOHAMMEDIA – MOROCCO)

Chaabane, M. S.; Abouali, N.; Boumeaza, T.; Zahouily, M.

Today, the prevention and the risk management occupy an important part of public policy activities and are considered as major components in the process of sustainable development of territories. Due to the expansion of IT processes, in particular the geomatics sciences, decision-makers are increasingly requesting for digital tools before, during and after the risks of natural disasters. Both, the geographic information system (GIS) and the remote sensing are considered as geospatial and fundamental tools which help to understand the evolution of risks, to analyze their temporality and to make the right decisions.

The historic events (on 1996, 2002 and 2010) which struck the city of Mohammedia and having caused the consequent damage to vital infrastructure and private property, require a thorough and rational analyze to benefit from it and well manage the floods phenomena. This article present i) the contribution of the geospatial tools for the floods simulation of Oued of el Maleh city at various return periods. These tools allow the demarcation of flood-risk areas and so to make floods simulations in several scenarios (decadal flood, 20-year flood, 50-year flood, 100-year flood, 500-year flood & also millennial flood) and besides (ii) present a synthesis map combining the territorial stakes superposed on the flood scenarios at different periods of return.

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Chaabane, M. S. / Abouali, N. / Boumeaza, T. / et al: GEOSPATIAL TOOLS FOR PREVENTION OF URBAN FLOODS CASE STUDY: RIVER OF EL MALEH (CITY OF MOHAMMEDIA – MOROCCO). 2017. Copernicus Publications.

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