DOI: 10.1175/JCLI-D-17-0596.1
Scopus记录号: 2-s2.0-85047098759
论文题名: Climatological aspects of convective parameters over Europe: A comparison of ERA-interim and sounding data
作者: Taszarek M. ; Brooks H.E. ; Czernecki B. ; Szuster P. ; Fortuniak K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 11 起始页码: 4281
结束页码: 4308
语种: 英语
英文关键词: Annual variations
; Atm/Ocean Structure/ Phenomena
; Climatology
; Europe
; Geographic location/entity
; Models and modeling
; Observational techniques and algorithms
; Physical Meteorology and Climatology
; Radiosonde observations
; Reanalysis data
; Severe storms
; Variability
Scopus关键词: Boundary layers
; Climatology
; Thunderstorms
; Annual variations
; Europe
; Geographic location
; Radiosonde observations
; Reanalysis
; Severe storms
; Variability
; Radiosondes
英文摘要: We compare over 1 million sounding measurements with ERA-Interim reanalysis for the 38-yr period from 1979 to 2016. The large dataset allows us to provide an improved insight into the spatial and temporal distributions of the prerequisites of deep moist convection across Europe. In addition, ERA-Interim is also evaluated. ERA-Interim estimates parameters describing boundary layer moisture and midtropospheric lapse rates well, with correlation coefficients of 0.94. Mixed-layer CAPE is, on average, underestimated by the reanalysis while the most unstable CAPE is overestimated. Vertical shear parameters in the reanalysis are better correlated with observations than CAPE, but are underestimated by approximately 1-2 m s-1. The underestimation decreases as the depth of the shear layer increases. Compared to radiosonde observations, instability in ERA-Interim is overestimated in southern Europe and underestimated over eastern Europe. High values of instability are observed from May to September, out of phase with the climatological pattern of wind shear, which peaks in winter. From September to April, favorable conditions for thunderstorms occur mainly over southern and western Europe with the peak location and higher frequency shifting to central and eastern Europe from May to August. For southern Europe, the annual cycle peaks in September with high values of inhibition suppressing thunderstorm activity in July and August. The area with the highest annual number of days with environmental conditions favorable for thunderstorms extends from Italy and Austria eastward through the Carpathians and Balkans. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111507
Appears in Collections: 气候减缓与适应
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作者单位: Department of Climatology, Institute of Physical Geography and Environmental Planning, Adam Mickiewicz University, Poznan, Poland; Skywarn Poland, Warsaw, Poland; NOAA/National Severe Storms Laboratory, University of Oklahoma, Norman, OK, United States; School of Meteorology, University of Oklahoma, Norman, OK, United States; Department of Computer Science, Cracow University of Technology, Krakow, Poland; Department of Meteorology and Climatology, Faculty of Geographical Sciences, University of Łódz, Łódz, Poland
Recommended Citation:
Taszarek M.,Brooks H.E.,Czernecki B.,et al. Climatological aspects of convective parameters over Europe: A comparison of ERA-interim and sounding data[J]. Journal of Climate,2018-01-01,31(11)