Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jafrearsci.2018.02.004 |
Flood frequency analysis and generation of flood hazard indicator maps in a semi-arid environment, case of Ourika watershed (western High Atlas, Morocco) | |
El Fels, Abdelhafid El Alaoui1; Alaa, Noureddine2; Bachnou, Ali1; Rachidi, Said3 | |
通讯作者 | El Fels, Abdelhafid El Alaoui |
来源期刊 | JOURNAL OF AFRICAN EARTH SCIENCES
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ISSN | 1464-343X |
EISSN | 1879-1956 |
出版年 | 2018 |
卷号 | 141页码:94-106 |
英文摘要 | The development of the statistical models and flood risk modeling approaches have seen remarkable improvements in their productivities. Their application in arid and semi-arid regions, particularly in developing countries, can be extremely useful for better assessment and planning of flood risk in order to reduce the catastrophic impacts of this phenomenon. This study focuses on the Setti Fadma region (Ourika basin, Morocco) which is potentially threatened by floods and is subject to climatic and anthropogenic forcing. The study is based on two main axes: (i) the extreme flow frequency analysis, using 12 probability laws adjusted by Maximum Likelihood method and (ii) the generation of the flood risk indicator maps are based on the solution proposed by the Nays2DFlood solver of the Hydrodynamic model of two-dimensional Saint-Venant equations. The study is used as a spatial high-resolution digital model (Lidar) in order to get the nearest hydrological simulation of the reality. The results showed that the GEV is the most appropriate law of the extreme flows estimation for different return periods. Taking into consideration the mapping of 100-year flood area, the study revealed that the fluvial overflows extent towards the banks of Ourika and consequently, affects some living areas, cultivated fields and the roads that connects the valley to the city of Marrakech. The aim of this study is to propose new technics of the flood risk management allowing a better planning of the flooded areas. (C) 2018 Elsevier Ltd. All rights reserved. |
英文关键词 | Flood Semi-arid Frequency analysis Law Two-dimensional Risk |
类型 | Article |
语种 | 英语 |
国家 | Morocco |
收录类别 | SCI-E |
WOS记录号 | WOS:000429512000009 |
WOS关键词 | LOG-LOGISTIC DISTRIBUTION ; HYDROLOGICAL MODEL ; RISK-ASSESSMENT ; ANNUAL MAXIMUM ; DISTRIBUTIONS ; DAMAGE ; STATISTICS ; MANAGEMENT ; PARAMETER ; MOMENTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/210385 |
作者单位 | 1.Fac Sci & Tech Marrakech, Lab Geosci & Environm, BP 549, Marrakech, Morocco; 2.Fac Sci & Tech Marrakech, Lab Appl Math & Comp Sci, BP 549, Marrakech, Morocco; 3.Hydraul Basin Agcy Tensift, BP 2388, Marrakech, Morocco |
推荐引用方式 GB/T 7714 | El Fels, Abdelhafid El Alaoui,Alaa, Noureddine,Bachnou, Ali,et al. Flood frequency analysis and generation of flood hazard indicator maps in a semi-arid environment, case of Ourika watershed (western High Atlas, Morocco)[J],2018,141:94-106. |
APA | El Fels, Abdelhafid El Alaoui,Alaa, Noureddine,Bachnou, Ali,&Rachidi, Said.(2018).Flood frequency analysis and generation of flood hazard indicator maps in a semi-arid environment, case of Ourika watershed (western High Atlas, Morocco).JOURNAL OF AFRICAN EARTH SCIENCES,141,94-106. |
MLA | El Fels, Abdelhafid El Alaoui,et al."Flood frequency analysis and generation of flood hazard indicator maps in a semi-arid environment, case of Ourika watershed (western High Atlas, Morocco)".JOURNAL OF AFRICAN EARTH SCIENCES 141(2018):94-106. |
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