Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(5), 169-178 | DOI: 10.11118/actaun201159050169

Tendencies of climatic extremes occurrence in different Moravian regions and landscape types

Bronislava Mužíková1, Vítězslav Vlček2, Tomáš Středa3
1 Ústav aplikované a krajinné ekologie, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika
2 Ústav agrochemie, půdoznalství, mikrobiologie a výživy rostlin, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika
3 Český hydrometeorologický ústav - pobočka Brno, Kroftova 43, 616 67 Brno, Česká republika

In this study present frequency of several characteristic days as tropical, summer, arctic, frost and ice days and also length of heat waves was compared with modelled future occurrence of these climate extreme indices. Climate-diagrams were used for drought hazard assessment. The main objective of our research was to detect possible changes of frequency of the extreme events toward future. Data from four localities in the Czech Republic (Moravia) were chosen for the evaluation. Each locality represents different climatic, landscape and settlement conditions. Localities are represented by the closest grid points. Future trend was modelled for scenario data (scenario A1B) by regional model ALADIN-Climate/CZ in the Czech Hydrometeorological Institute. The results showed obvious rising tendency of tropical and summer days frequency on all localities, especially in lowland regions. Very strong decreasing trend seemed to be in occurrence of arctic days, which might be very scarce in the future. Frost days and ice days should also decrease. Increase in number of days in heat wave was considerable. Climate-diagrams showed possible rising drought hazard for all localities towards future periods.

Keywords: characteristic days, climatic extremes, ALADIN
Grants and funding:

This article was supported by the project: Ministry of Education, Youth and Sports No. 2B06101 "The optimization of both agricultural and river landscape in the Czech Republic with an emphasis on the biodiversity process".

Received: April 8, 2011; Published: March 23, 2014  Show citation

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Mužíková, B., Vlček, V., & Středa, T. (2011). Tendencies of climatic extremes occurrence in different Moravian regions and landscape types. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 59(5), 169-178. doi: 10.11118/actaun201159050169
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