E3S Web Conf.
Volume 37, 2018The Sixth International Congress “Water, Waste and Environment” (EDE6-2017)
|Number of page(s)||11|
|Published online||25 May 2018|
Hydrological and hydroclimatic regimes in the Ouergha watershed
Laboratoire de Géo-ressources et Environnement, Faculté des Sciences et Techniques de Fès, Université Sidi Mohamed Ben Abdellah, Route d’Imouzzer, Fès, BP 2202, Maroc
2 Agence du bassin hydraulique, Fès, Maroc
* Karim Msatef : email@example.com; mobile: +212649375893
This work consists in studying the hydrological and hydroclimatic regime of the Ouergha watershed and frequency analysis of extreme flows and extreme rainfall for peak estimation and return periods, in order to prevention and forecasting against risks (flood...). Hydrological regime analysis showed a regime of the rain type, characterized by rainfed abundance with very high winter flows, so strong floods. The annual module and the different coefficients show hydroclimatic fluctuations in relation to a semihumid climate. The water balance has highlighted the importance of the volumes of water conveyed upstream than downstream, thus confirming the morphometric parameters of watershed and the lithological nature. Frequency study of flows and extreme rainfall showed that these flows governed by dissymmetrical laws based on methods Gumbel, GEV, Gamma and Log Pearson III.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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