Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11069-016-2723-0 |
Regional flood frequency analysis in the High Atlas mountainous catchments of Morocco | |
Zkhiri, Wiam1; Tramblay, Yves2; Hanich, Lahoucine1; Berjamy, Brahim3 | |
通讯作者 | Tramblay, Yves |
来源期刊 | NATURAL HAZARDS
![]() |
ISSN | 0921-030X |
EISSN | 1573-0840 |
出版年 | 2017 |
卷号 | 86期号:2页码:953-967 |
英文摘要 | In semi-arid catchments, the contribution of floods to annual runoff is important. The High Atlas Mountain catchments (N’Fis, Rheraya, Ourika, Zat and R’dat) located in the south of Morocco, upstream of the city of Marrakech, are an example of those basins where floods provide the main contribution to surface water resources. The goal of this study is to evaluate whether a regional flood frequency analysis could improve the estimation of the magnitude and the occurrence of floods in these mountainous catchments. The database considered is long-term measurement of daily discharge at the outlets with record length varying from 35 to 45 years. The index flood method is considered to build a regional model based on the generalized extreme values distribution. The results showed a contrasted seasonal behavior, with floods caused by either rainfall during the autumn season or a mix of rainfall and snowmelt for spring events. As a consequence, two distinct regional models have been computed, one for autumn and one for spring events. No significant trends have been found for seasonal maximum discharge in all the catchments. The results of the regional frequency analysis show that the regional model provides better flood quantiles estimates than a standard at-site model. However, there is a much greater uncertainty for both local and regional estimates of floods occurring during the autumn than during spring events, which are estimated with a good level of accuracy. This research provides insights into how to improve the estimation of flood return levels useful for water resources management in these semi-arid mountainous catchments. |
英文关键词 | Floods Regional frequency analysis GEV Tensift Morocco Mountains |
类型 | Article |
语种 | 英语 |
国家 | Morocco ; France |
收录类别 | SCI-E |
WOS记录号 | WOS:000394328400022 |
WOS关键词 | EXTREME EVENTS ; HYDROLOGY ; FRAMEWORK ; RAINFALL ; MAXIMUM ; CONTEXT ; SAMPLE ; AREAS |
WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201199 |
作者单位 | 1.Univ Cadi Ayyad, Dept Sci Terre, Fac Sci & Tech, Lab Georessources,Unite Associee,CNRST URAC42, Ave A Khattabi,BP 549, Marrakech 40000, Morocco; 2.IRD Hydrosci Montpellier, UMR 5569, Montpellier, France; 3.Agence Bassin Hydraul Tensift, Marrakech 40000, Morocco |
推荐引用方式 GB/T 7714 | Zkhiri, Wiam,Tramblay, Yves,Hanich, Lahoucine,et al. Regional flood frequency analysis in the High Atlas mountainous catchments of Morocco[J],2017,86(2):953-967. |
APA | Zkhiri, Wiam,Tramblay, Yves,Hanich, Lahoucine,&Berjamy, Brahim.(2017).Regional flood frequency analysis in the High Atlas mountainous catchments of Morocco.NATURAL HAZARDS,86(2),953-967. |
MLA | Zkhiri, Wiam,et al."Regional flood frequency analysis in the High Atlas mountainous catchments of Morocco".NATURAL HAZARDS 86.2(2017):953-967. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。