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Forcings and projections of past and future wind speed over the Czech Republic
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SYSNO ASEP 0506155 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Forcings and projections of past and future wind speed over the Czech Republic Author(s) Brázdil, Rudolf (UEK-B) RID, SAI, ORCID
Mikšovský, Jiří (UEK-B) RID
Štěpánek, Petr (UEK-B) RID, SAI, ORCID
Zahradníček, Pavel (UEK-B) RID, SAI
Řezníčková, Ladislava (UEK-B) RID, SAI
Dobrovolný, Petr (UEK-B) RID, ORCID, SAINumber of authors 6 Source Title Climate Research - ISSN 0936-577X
Roč. 77, č. 1 (2018), s. 1-21Number of pages 21 s. Language eng - English Country DE - Germany Keywords north-atlantic oscillation ; climate-change ; euro-cordex ; atmospheric circulation ; bias correction ; decadal trends ; russia pattern ; weather types ; part 1 ; temperature ; Wind speed ; Climate forcings ; Circulation indices ; Attribution analysis ; Wind-speed projections ; Regional climate models ; Czech Republic Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Meteorology and atmospheric sciences R&D Projects LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) QJ1610072 GA MZe - Ministry of Agriculture (MZe) Research Infrastructure CzeCOS II - 90061 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Limited access Institutional support UEK-B - RVO:86652079 UT WOS 000456195100001 EID SCOPUS 85060850326 DOI 10.3354/cr01540 Annotation Monthly, seasonal and annual wind-speed series from 119 meteorological stations in the Czech Republic indicate significant decreasing trends in the period 1961-2015. Attribution analysis, applying multiple linear regression, was used to identify wind-speed components related to natural and anthropogenic climate forcings and internally induced climate variability. A significant link to wind speeds was detected for the North Atlantic Oscillation index, as well as for the closely-related Central European Zonal index, especially during the winter. An influence from the East Atlantic/Western Russia Pattern was found during autumn and winter, especially in the eastern part of the country. Changes in large-scale circulation did not seem to be primarily involved in long-term wind stilling, despite a formal correlation between the stilling and anthropogenic forcing. Distinct geographical variations in the regression-estimated links suggest profound influences from interactions between local features of the measuring sites and large-scale climate-forming factors. In total, 11 Euro-CORDEX regional climate model (RCM) simulations for representative concentration pathways RCP4.5 and RCP8.5 were used for projection of annual and seasonal mean daily wind speeds for the Czech Republic for 1951-2100. Despite correction of the model biases for individual RCMs, these simulations largely underestimated the magnitude of declining observational trends in 1981-2010, with only annual, winter and spring values sharing the same trend for both RCPs. Linear trends in wind speeds calculated for 1981-2100 for both RCPs show a significant negative trend in summer, while significant positive trends in winter and spring wind speeds were recorded for RCP8.5. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2020 Electronic address https://www.int-res.com/abstracts/cr/v77/n1/p1-21/
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