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Changes in climate elements in central Europe and the Czech Republic from the mid-20th century, focusing on autumn
Maryško, Kryštof ; Huth, Radan (advisor) ; Cahynová, Monika (referee)
This thesis deals with climate elements changes in Central Europe in the 2nd half of the 20th century which are being compared to changes in global and European scale. The entire thesis is divided into three main chapters according to the climate elements. The most described are temperature indicators which the authors of papers study most frequently. Also the precipitation forms a separate chapter, while other elements are all summarized in one chapter, because there are not that many studies about them. The average annual temperature and precipitation trends calculated for Europe or the world were similar to those in Central Europe. As for the temperature indicators, during the 2nd half of the 20th century warming was found in most cases and insignificant trends prevailed for precipitation indicators. Among the seasonal changes in climate, autumn stood out. Its trends were in some cases (especially for temperature indicators) different from the other seasons. Whilst there is warming in Central Europe in spring, summer and winter, it cools in autumn. Keywords: climate elements, long-term changes, Central Europe, autumn
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Long-term precipitation changes in Europe in different data sources
Vít, Václav ; Huth, Radan (advisor) ; Crhová, Lenka (referee)
The subject of this diploma thesis is the analysis of long-term changes in precipitation in Europe over the period 1961 - 2011. Emphasis is placed on determining differences in values of trends in precipitation among selected data sources and on analyzing the spatial distribution of annual and seasonal changes in precipitation in Europe, including a discussion of possible causes of differences in these changes in individual areas. Another aim is to illustrate, describe and account for the differences in trend values among different data sources: the ECA&D station database, the interpolation network data sets E-OBS and CRU TS and two reanalyses JRA-55 and NCEP/NCAR. Depending on the amount and quality of data available for the comparison of data sets, changes in precipitation totals were described over a long-term scale in absolute and also, to a lesser degree, in relative values. The first part summarizes the scientific literature dealing with the changes in precipitation characteristics throughout the world and in Europe. There follows a description of the suitability of individual types of data sources for estimating trends in precipitation totals. Scientific articles usually describe long-term changes based on a single data source rather than using a variety of individual types of data sources....
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Temperature trends in Europe estimated from different data sources
Krauskopf, Tomáš ; Huth, Radan (advisor) ; Pokorná, Lucie (referee)
This paper deals with the analysis of long-term temperature changes in Europe in the period 1957-2002 with an emphasis on the evaluation of the differences in values of temperature trends among selected data sources. One of the objectives of this paper is to analyze the spatial distribution of warming in Europe in individual seasons and to attempt to discuss the causes of different warming rates in different areas. Another aim of this thesis is to show, describe and justify differences in temperature trends between three different data sources: the ECA&D station database, the E-OBS interpolation network data set and the ERA-40 reanalysis. Despite the slight differences in the minimum and maximum temperature trends, the long-term mean surface air temperature change is mainly described. In the first part of the thesis we summarize the scientific literature dealing not only with warming in Europe but also the suitability of individual types of data sources for estimating the temperature trends. Most scientific articles at European level describe a long-term temperature change based on only one data source and do not analyze differences in temperature trends between databases. This diploma thesis should bring new or more detailed knowledge of these differences together with their justification. For...
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Changes in climate elements in central Europe and the Czech Republic from the mid-20th century, focusing on autumn
Maryško, Kryštof ; Huth, Radan (advisor) ; Cahynová, Monika (referee)
This thesis deals with climate elements changes in Central Europe in the 2nd half of the 20th century which are being compared to changes in global and European scale. The entire thesis is divided into three main chapters according to the climate elements. The most described are temperature indicators which the authors of papers study most frequently. Also the precipitation forms a separate chapter, while other elements are all summarized in one chapter, because there are not that many studies about them. The average annual temperature and precipitation trends calculated for Europe or the world were similar to those in Central Europe. As for the temperature indicators, during the 2nd half of the 20th century warming was found in most cases and insignificant trends prevailed for precipitation indicators. Among the seasonal changes in climate, autumn stood out. Its trends were in some cases (especially for temperature indicators) different from the other seasons. Whilst there is warming in Central Europe in spring, summer and winter, it cools in autumn. Keywords: climate elements, long-term changes, Central Europe, autumn
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The long-term trends in numbers and distribution of birds in the Czech Republic
Gebauer Fialová, Adéla ; Musil, Petr (advisor) ; Fuchs, Roman (referee)
The long-term changes in distribution and numbers of bird species in the Czech Republic were analysed using published data from Breeding Birds Atlases in the Czech Republic (1973-77, 1985-89 and 2001-03). Each species were categorized by taxonomical group, migratory strategies, biogeography type, breeding habitat, breeding population size in Europe and in the Czech Republic a body size. The changes in numbers and changes in distribution were inter-correlated Increase in distribution as well as in numbers were recorded in rare and large species, in species increasing in whole Europe and in bird species protected under Czech legislation. Interesting pattern in population was found in waterbirds, where piscivorous species are increasing, whereas other (mostly grebes, ducks etc.) species are decreasing.
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