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@article{1383558,
author = {Brázdil, Rudolf and Zahradníček, Pavel and Řezníčková, Ladislava and Tolasz, Radim and Štěpánek, Petr and Dobrovolný, Petr},
article_number = {3},
doi = {http://dx.doi.org/10.3354/cr01464},
keywords = {Mean daily wind speed; Spatial variability; Temporal variability; Wind stilling; Czech Republic},
language = {eng},
issn = {0936-577X},
journal = {Climate Research},
title = {Spatial and temporal variability of mean daily wind speeds in the Czech Republic, 1961-2015},
volume = {72},
year = {2017}
}
TY - JOUR
ID - 1383558
AU - Brázdil, Rudolf - Zahradníček, Pavel - Řezníčková, Ladislava - Tolasz, Radim - Štěpánek, Petr - Dobrovolný, Petr
PY - 2017
TI - Spatial and temporal variability of mean daily wind speeds in the Czech Republic, 1961-2015
JF - Climate Research
VL - 72
IS - 3
SP - 197-216
EP - 197-216
SN - 0936577X
KW - Mean daily wind speed
KW - Spatial variability
KW - Temporal variability
KW - Wind stilling
KW - Czech Republic
N2 - 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. 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").
ER -
BRÁZDIL, Rudolf, Pavel ZAHRADNÍČEK, Ladislava ŘEZNÍČKOVÁ, Radim TOLASZ, Petr ŠTĚPÁNEK and Petr DOBROVOLNÝ. Spatial and temporal variability of mean daily wind speeds in the Czech Republic, 1961-2015. \textit{Climate Research}. 2017, vol.~72, No~3, p.~197-216. ISSN~0936-577X. Available from: https://dx.doi.org/10.3354/cr01464.
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