DOI: 10.3354/cr01464
Scopus记录号: 2-s2.0-85021779860
论文题名: Spatial and temporal variability of mean daily wind speeds in the Czech Republic, 1961-2015
作者: Brázdil R. ; Zahradníček P. ; Řezníčková L. ; Tolasz R. ; Štěpánek P. ; Dobrovolný P.
刊名: Climate Research
ISSN: 0936577X
出版年: 2017
卷: 72, 期: 3 起始页码: 197
结束页码: 216
语种: 英语
英文关键词: Czech Republic
; Mean daily wind speed
; Spatial variability
; Temporal variability
; Wind stilling
Scopus关键词: homogeneity
; North Atlantic Oscillation
; spatial variation
; temporal variation
; wind direction
; wind velocity
; Czech Republic
英文摘要: This contribution analyses the spatio-temporal variability of mean daily wind speeds (MDWSs) over the territory of the Czech Republic in the 1961-2015 period, using series from the 119 meteorological stations of the Czech Hydrometeorological Institute. These series were quality-controlled and homogenised by application of the standard normal homogeneity test, after Alexandersson, and the Maronna and Yohai test. The spatial variability of MDWSs is analysed in terms of annual and seasonal data, which exhibit a clear relationship to orographic character, with the highest values in highland and mountain areas. Spatial relationships between stations are interpreted by means of correlation graphs, which express the dependence of MDWSs on the altitude of the stations and the distance between them. Analysis of monthly, seasonal and annual linear trends for 4 altitudinal intervals and the entire Czech Republic shows a decreasing tendency, almost statistically significant (significance level of α = 0.05). Taking the 119 stations individually, a certain proportion of stations also displays positive trends. Comparison of MDWS variability with circulation indices shows a closer relationship to the Central European Zonal Index than to the North Atlantic Oscillation Index. The results obtained are discussed with respect to problems associated with wind speed measurements, particularly the change from standard to automatic wind speed measurements, and a broadly occurring decline in measured wind speed series in recent decades ('wind stilling'). © Inter-Research 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116323
Appears in Collections: 气候减缓与适应
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Recommended Citation:
Brázdil R.,Zahradníček P.,Řezníčková L.,et al. Spatial and temporal variability of mean daily wind speeds in the Czech Republic, 1961-2015[J]. Climate Research,2017-01-01,72(3)