气候变化领域集成服务门户(CCPortal): Connecting flash flood events with radar-derived convective storm characteristics on the northwestern Mediterranean coast: knowing the present for better future scenarios adaptation

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DOI	10.1016/j.atmosres.2020.104863
	Connecting flash flood events with radar-derived convective storm characteristics on the northwestern Mediterranean coast: knowing the present for better future scenarios adaptation
	del Moral A.; Llasat M.D.C.; Rigo T.
发表日期	2020
ISSN	0169-8095
卷号	238
英文摘要	The northwestern Mediterranean coast is one of the areas most affected by flash floods and adverse weather, where also global climate scenarios are predicting an increase in precipitation extremes. This, along with the sea-level rise and the associated potential infrastructure and economical losses, represents a major risk for coastal settlements, as the one studied in this work: a major touristic area on the southern coast of Catalonia. The objective of the present paper is, thus, to understand in-depth the behavior of convective activity in the area and its link with flash flood events, to improve adverse and severe weather early warning systems in a rapidly changing weather as an adaptation measure. With this purpose, the study focuses on the period 2014–2018, analyzing the convective cells and storm motion in the region of study, through the new identification and tracking algorithm developed by the authors and applied in the Meteorological Service of Catalonia. The results show that the area is mostly affected by shallow but efficient convection, probably embedded in major weather systems with high precipitation rain rates, which tends to saturate the catchments and produce flooding. The work also shows the role of the topography as a triggering factor for storms outside the convective season, as a key feature for the convergence lines organization, and as a capping for stationary cells upstream. Improvements in the current warning system, such as different precipitation thresholds considering the time of exposure to that rain, as well as a further study are also presented as main results. These results can be extrapolated and applied to other regions affected by the same kind of heavy precipitation and flash floods. © 2020 Elsevier B.V.
英文关键词	Coastal floods; Convective precipitation; Flash floods; Mediterranean coast; Meteorological radar; Nowcasting; Salou; Storm tracking
学科领域	Embedded systems; Floods; Rain; Sea level; Storms; Topography; Coastal floods; Convective precipitation; Flash flood; Mediterranean coasts; Nowcasting; Salou; Meteorological radar; atmospheric convection; climate change; disaster management; early warning system; flash flood; future prospect; nowcasting; precipitation (climatology); radar; storm track; Catalonia; Mediterranean Coast [Spain]; Spain
语种	英语
scopus关键词	Embedded systems; Floods; Rain; Sea level; Storms; Topography; Coastal floods; Convective precipitation; Flash flood; Mediterranean coasts; Nowcasting; Salou; Meteorological radar; atmospheric convection; climate change; disaster management; early warning system; flash flood; future prospect; nowcasting; precipitation (climatology); radar; storm track; Catalonia; Mediterranean Coast [Spain]; Spain
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120438
作者单位	Department of Applied Physics, University of Barcelona, Barcelona, Spain; Meteorological Service of Catalonia, Barcelona, Spain; Water Research Institute of the University of Barcelona, Spain
推荐引用方式 GB/T 7714	del Moral A.,Llasat M.D.C.,Rigo T.. Connecting flash flood events with radar-derived convective storm characteristics on the northwestern Mediterranean coast: knowing the present for better future scenarios adaptation[J],2020,238.
APA	del Moral A.,Llasat M.D.C.,&Rigo T..(2020).Connecting flash flood events with radar-derived convective storm characteristics on the northwestern Mediterranean coast: knowing the present for better future scenarios adaptation.Atmospheric Research,238.
MLA	del Moral A.,et al."Connecting flash flood events with radar-derived convective storm characteristics on the northwestern Mediterranean coast: knowing the present for better future scenarios adaptation".Atmospheric Research 238(2020).