干旱区生态环境知识资源中心(Arid): Causes and impacts of flash floods: case of Gabes City, Southern Tunisia

Arid

DOI	10.1007/s12517-020-5149-7
	Causes and impacts of flash floods: case of Gabes City, Southern Tunisia
	Dahri, Noura; Abida, Habib
通讯作者	Dahri, Noura
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:4
英文摘要	Flash floods are among the most severe natural hazards that cause disastrous environmental and human impacts. The city of Gabes (Southern Tunisia) is prone to harmful flooding, because of its location on a low plane and its extremely erratic rainfall distribution. Flood risk associated with this is expected to increase further in the coming years due to the high rate of urbanization and an ever growing population. A particular interest is given to a major flooding event, which is the single event that hit the region in the summer season over the last century. Statistical tools, satellite images treatment and analysis, meteorological observation data, Geographic Information System (GIS), and survey data were considered in order to understand and explore the different causes of this disaster, its extent and its consequences. ERA5 is a new global reanalysis tool which was used in this study to evaluate spatial and temporal extent of the examined major rainfall event. A survey was also conducted with 108 participants from different areas of the city. This latter revealed a variety of causes which amplified the flood disaster. The results obtained showed that the flood risk depends not only on rainfall intensity and the event total duration but also on land use, urban development, oasis destruction, and other anthropogenic settings. In this study, procedures are developed to classify and rank the causes and the impacts from the least to the most severe, with special attention to certain problematic spots in the city that were analyzed in detail. Flooding extent areas were estimated and were shown to be in good agreement with the observation data. Recommendations and scenarios to mitigate flood risk are also provided.
英文关键词	Flash flood Survey Statistical analysis Causes Damages GIS
类型	Article
语种	英语
国家	Tunisia
收录类别	SCI-E
WOS记录号	WOS:000513500000002
WOS关键词	EXTREME ; PRECIPITATION ; TEMPERATURE ; VARIABILITY ; RAINFALL ; REGIONS ; EVENTS ; TRENDS
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/2XILL650/314078
作者单位	Univ Sfax, Fac Sci, Res Lab GEOMODEL, BP 1171, Sfax 3000, Tunisia
推荐引用方式 GB/T 7714	Dahri, Noura,Abida, Habib. Causes and impacts of flash floods: case of Gabes City, Southern Tunisia[J],2020,13(4).
APA	Dahri, Noura,&Abida, Habib.(2020).Causes and impacts of flash floods: case of Gabes City, Southern Tunisia.ARABIAN JOURNAL OF GEOSCIENCES,13(4).
MLA	Dahri, Noura,et al."Causes and impacts of flash floods: case of Gabes City, Southern Tunisia".ARABIAN JOURNAL OF GEOSCIENCES 13.4(2020).