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@article{1351751,
author = {Brázdil, Rudolf and Hostýnek, Jiří and Řezníčková, Ladislava and Zahradníček, Pavel and Tolasz, Radim and Dobrovolný, Petr and Štěpánek, Petr},
article_location = {Hoboken, NJ USA},
article_number = {4},
doi = {http://dx.doi.org/10.1002/joc.4827},
keywords = {maximum wind gust; wind measurement; homogenisation; spatial variability; temporal variability; Kyrill windstorm; Emma windstorm; Czech Republic},
language = {eng},
issn = {0899-8418},
journal = {International Journal of Climatology},
title = {The variability of maximum wind gusts in the Czech Republic between 1961 and 2014},
volume = {37},
year = {2017}
}
TY - JOUR
ID - 1351751
AU - Brázdil, Rudolf - Hostýnek, Jiří - Řezníčková, Ladislava - Zahradníček, Pavel - Tolasz, Radim - Dobrovolný, Petr - Štěpánek, Petr
PY - 2017
TI - The variability of maximum wind gusts in the Czech Republic between 1961 and 2014
JF - International Journal of Climatology
VL - 37
IS - 4
SP - 1961-1978
EP - 1961-1978
PB - Wiley
SN - 08998418
KW - maximum wind gust
KW - wind measurement
KW - homogenisation
KW - spatial variability
KW - temporal variability
KW - Kyrill windstorm
KW - Emma windstorm
KW - Czech Republic
N2 - This contribution employs instrumental records to analyse the temporal and spatial variability of monthly, seasonal and annual maximum wind gusts (MWGs) in the Czech Republic. The development of an observation network capable of measuring wind gusts, the possible technical weaknesses of wind measurements and problems with establishing homogeneity in wind-gust data are described. For the 1961–2014 period, quality-checked data from 19 synoptic stations of the Czech Hydrometeorological Institute throughout the territory of the Czech Republic are examined, divided into three altitudinal groups. In terms of the spatial variability of MWGs, correlation coefficients between stations decreasemore strongly in relation to station distance rather than altitude. Spatial correlations are better expressed (by higher correlation coefficients) in the winter half-year than in the summer half-year. Linear trends in monthly, seasonal and annual MWGs for the 19 synoptic stations, for their three altitudinal groups, and for the entire Czech Republic show statistically significant decreases (deepest in November and autumn), with the exception of spring (for stations above 300 m) and summer. The 10 highest MWG events of all are selected. The spatial distribution of wind gusts for two prominent windstorms, Kyrill (18–19 January 2007) and Emma (1–2 March 2008), are presented. Changes in MWGs series are compared with fluctuations in atmospheric circulation responding to the North Atlantic Oscillation. Decreasing MWG trends are discussed with respect to diminishing storminess and surface wind speeds (wind stilling) recorded during recent decades in Europe, as well as over other continents.
ER -
BRÁZDIL, Rudolf, Jiří HOSTÝNEK, Ladislava ŘEZNÍČKOVÁ, Pavel ZAHRADNÍČEK, Radim TOLASZ, Petr DOBROVOLNÝ and Petr ŠTĚPÁNEK. The variability of maximum wind gusts in the Czech Republic between 1961 and 2014. \textit{International Journal of Climatology}. Hoboken, NJ USA: Wiley, 2017, vol.~37, No~4, p.~1961-1978. ISSN~0899-8418. Available from: https://dx.doi.org/10.1002/joc.4827.
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