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Temperature extremes and circulation types in the Czech Republic, 1961-2020
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SYSNO ASEP 0559357 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Temperature extremes and circulation types in the Czech Republic, 1961-2020 Author(s) Zahradníček, Pavel (UEK-B) RID, SAI
Brázdil, Rudolf (UEK-B) RID, SAI, ORCID
Řehoř, Jan (UEK-B) ORCID, RID, SAI
Lhotka, Ondřej (UEK-B) RID, ORCID, SAI
Dobrovolný, Petr (UEK-B) RID, ORCID, SAI
Štěpánek, Petr (UEK-B) RID, SAI, ORCID
Trnka, Miroslav (UEK-B) RID, ORCID, SAINumber of authors 7 Source Title International Journal of Climatology. - : Wiley - ISSN 0899-8418
Roč. 42, č. 9 (2022), s. 4808-4829Number of pages 22 s. Language eng - English Country GB - United Kingdom Keywords circulation type ; cold-wave ; the Czech Republic ; day-to-day change ; fluctuation ; frost day ; heat-wave ; ice day ; maximum temperature ; minimum temperature ; summer day ; trend ; tropical day ; warm and cold anomalies Subject RIV DG - Athmosphere Sciences, Meteorology OECD category Climatic research R&D Projects EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA18-15958S GA ČR - Czech Science Foundation (CSF) QK1910338 GA MZe - Ministry of Agriculture (MZe) Method of publishing Limited access Institutional support UEK-B - RVO:86652079 UT WOS 000748556200001 EID SCOPUS 85120770442 DOI https://doi.org/10.1002/joc.7505 Annotation This paper presents the characteristics of extreme temperatures in the Czech Republic, as calculated from homogenized series of daily maximum (TMAX) and daily minimum (TMIN) temperatures recorded by 133 climatological stations throughout the territory in the 1961-2020 period. In general, statistically significant increasing linear trends were recognized in series of absolute TMAX, absolute TMIN, numbers of summer days, tropical days, days with tropical nights, heat-wave, and warm-anomaly days. Significant decreasing linear trends appeared in series of numbers of frost days, ice days, cold-wave, and cold-anomaly days. Objective classification of circulation types demonstrated the importance of anticyclonic types (especially those with warm airflow from the southern quadrant) and an unclassified type in the development of summer hot extremes, while winter cold extremes were linked to cold (north-)easterly advection. Significant changes in the frequency of certain circulation types emerged, as well as an increasing number of anticyclonic types conducive to hot extremes, a trend that contributed to their more frequent occurrence in recent decades. Existing trends in temperatures were complemented by spatiotemporal analysis of extreme temperatures, the characteristics of extremes and the circulation types in the two ,,normal,, periods of 1961-1990 and 1991-2020. These exhibited significant differences in means and variances. The results obtained are also discussed in a broader context. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2023 Electronic address https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.7505
Number of the records: 1