DOI: 10.1002/joc.5301
论文题名: Circulation weather types associated with extreme flood events in Northwestern Mediterranean
作者: Gilabert J. ; Llasat M.C.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 4 起始页码: 1864
结束页码: 1876
语种: 英语
英文关键词: Catalonia
; circulation weather types
; cyclones
; floods
; impacts
; Mediterranean
; precipitation
; trend analysis
Scopus关键词: Economics
; Land use
; Precipitation (chemical)
; Storms
; Catalonia
; Circulation weather types
; impacts
; Mediterranean
; Trend analysis
; Floods
; atmospheric circulation
; climate classification
; climate effect
; cyclone
; early warning system
; extreme event
; flash flood
; regional climate
; river discharge
; synoptic meteorology
; Catalonia
; Spain
英文摘要: The aim of this work was to identify the circulation weather types associated with flood events that occurred in Catalonia (Northeastern Spain) during the period 1900–2010. To achieve this objective, 261 extraordinary and catastrophic flood and flash flood events that were recorded during this period were characterized and classified based on impact data. A preliminary analysis of maximum precipitation and discharge was conducted in order to have some quantitative hydrometeorological indicators associated with these kinds of events. The objective classification developed by Jenkinson and Collison, which is based on differences in synoptic patterns according to surface pressure, was implemented. Once the weather regimes for each flood event had been established, a statistical and comparative analysis was performed that allowed us to determine which synoptic patterns were more frequently associated with the different flood types, their differences and their similarities. The results show that most synoptic situations were pure cyclonic structures, in both extraordinary and catastrophic events, although they were more frequent in the latter. Catastrophic floods generally had a synoptic origin enhanced by certain mesoscale factors, while extraordinary floods were usually associated with local flash floods that occurred primarily in summer and early autumn, highlighting the undetermined types that were not reflected at a synoptic scale. As the Mediterranean basin is a region where floods cause serious socio-economic impacts, this work will help improve prevention measures and provide information for policymakers, mainly for land-use planning and early warning systems. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117049
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: GAMA, Department of Applied Physics, University of Barcelona, Spain; Institute Cartographic and Geological of Catalonia, Barcelona, Spain
Recommended Citation:
Gilabert J.,Llasat M.C.. Circulation weather types associated with extreme flood events in Northwestern Mediterranean[J]. International Journal of Climatology,2018-01-01,38(4)