Flood Hazard Evaluation in Mzab Valley (Ghardaia—Algeria)

Mimouni, Omar; Merchichi, Amira; Lounis, Ghani Cheikh; Taleb, B. Ait; Tahalaitit, El Hadi

doi:10.1007/978-3-319-93136-4_14

Cited by 3 publications

(3 citation statements)

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“…Several studies have been carried out with the aim of generating flood risk maps based on hydrological and hydraulic simulation (Astite et al 2015;Yamani et al 2016;Abdessamed andAbderrazak 2019 andHafnaoui et al 2020) or hydrogeomorphological approach (Cheikh lounis et al 2015;ZaÏri 2018;Mimouni et al 2019;Bourenane et al 2019). By using PLUTON as a hydrological model and HecRas for flood simulation, Astite et al (2015) delimitated flood risk areas in El Harrach river, the most important in Algiers city.…”

Section: Reviewed Studies On Floodsmentioning

confidence: 99%

“…Floods were caused by heavy rains generating a water accumulation along 2 km of wadis and mudslides overrun the riverbanks of Wadi M'Zab. The floods were aggravated when a dam break took place 20 km upstream of the city releasing more than 900 m 3 /s (Mimouni et al 2019). The Algerian Space Agency (ASAL) has mapped the inundated areas of the event of October 1, 2008, using high-resolution satellite images and surface terrain model enhanced by GPS data (Benhamouda 2012) (Fig.…”

Section: Wadi M'zab Flash Flood (Unesco World Heritage Site)mentioning

confidence: 99%

“…The dam break had a secondary effect. Mimouni et al (2019) concluded in their analysis of flood hazard of the Wadi M'zab valley, that there is an increase in the vulnerability due to the accelerating urbanization. This generates a serious problem in risk management.…”

Section: Wadi M'zab Flash Flood (Unesco World Heritage Site)mentioning

confidence: 99%

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Flood Analysis and Mitigation Strategies in Algeria

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et al. 2021

Natural Disaster Science and Mitigation Engineering: DPRI Reports

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Floods are frequent hazard in Algeria. They cause severe casualties, destroy infrastructures, and impair economies. In the past decades, Algeria experienced devastating floods. The dominant type of occurring floods are flash floods, which tend to be not well documented and studied in Algeria. This chapter presents a brief introduction to the flood phenomena within the Algerian climatic and management context, based on databases, scientific publications, and local technical reports. Existing studies about floods are reviewed. It also provides an analysis of the most disastrous floods that occurred in the past decades. Of the most noteworthy flash floods, a highlight of the Bab El Oued flash flood occurring in a heavily urbanized setting and the M’zab Valley flash flood, which took place in a UNESCO World Heritage Site. The monitoring network in Algeria is presented and data availability is discussed. The implementation of the first forecasting and early warning system are also presented. Different aspects of flash floods were presented including the effect of the increase of urbanization, the influence of climate change and the adopted strategies of flood risk management. Heavy and increasing urbanization and population growth increased the flood vulnerability and this trend must be mitigated.

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