DOI: 10.1002/joc.5386
论文题名: Large-scale heavy precipitation over central Europe and the role of atmospheric cyclone track types
作者: Hofstätter M. ; Lexer A. ; Homann M. ; Blöschl G.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e497
结束页码: e517
语种: 英语
英文关键词: atmospheric circulation
; climate change
; cyclone track
; cyclones
; heavy precipitation
; precipitation
; synoptic climatology
Scopus关键词: Atmospheric movements
; Climate change
; Climate models
; Climatology
; Precipitation (chemical)
; Atmospheric circulation
; Cyclone tracks
; Heavy precipitation
; Precipitation events
; Precipitation patterns
; Secondary precipitations
; Spatiotemporal variability
; Synoptic climatology
; Storms
; atmospheric circulation
; atmospheric general circulation model
; climate change
; cyclone
; precipitation intensity
; spatiotemporal analysis
; storm track
; synoptic meteorology
; Austria
; Czech Republic
; Germany
英文摘要: Precipitation patterns over Europe are largely controlled by atmospheric cyclones embedded in the general circulation of the mid-latitudes. This study evaluates the climatologic features of precipitation for selected regions in central Europe with respect to cyclone track types for 1959–2015, focusing on large-scale heavy precipitation. The analysis suggests that each of the cyclone track types is connected to a specific pattern of the upper level atmospheric flow, usually characterized by a major trough located over Europe. A dominant upper level cut-off low (COL) is found over Europe for strong continental (CON) and van Bebber's type (Vb) cyclones which move from the east and southeast into central Europe. Strong Vb cyclones revealed the longest residence times, mainly due to circular propagation paths. The central European cyclone precipitation climate can largely be explained by seasonal track-type frequency and cyclone intensity; however, additional factors are needed to explain a secondary precipitation maximum in early autumn. The occurrence of large precipitation totals for track events is strongly related to the track type and the region, with the highest value of 45% of all Vb cyclones connected to heavy precipitation in summer over the Czech Republic and eastern Austria. In western Germany, Atlantic winter cyclones are most relevant for heavy precipitation. The analysis of the top 50 precipitation events revealed an outstanding heavy precipitation period from 2006 to 2011 in the Czech Republic, but no gradual long-term change. The findings help better understand spatio-temporal variability of heavy precipitation in the context of floods and may be used for evaluating climate models. © 2017 The Authors. International Journal of Climatology published by John Wiley & Sons Ltd on behalf of the Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117001
Appears in Collections: 气候减缓与适应
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作者单位: Department of Climate Research, Central Institute for Meteorology and Geodynamics, Vienna, Austria; Institute of Geography, Physical Geography and Quantitative Methods, University of Augsburg, Germany; Institute of Hydraulic Engineering and Water Resources Management, Vienna University of Technology, Austria
Recommended Citation:
Hofstätter M.,Lexer A.,Homann M.,et al. Large-scale heavy precipitation over central Europe and the role of atmospheric cyclone track types[J]. International Journal of Climatology,2018-01-01,38