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Environment parameters monitoring
Richter, Tomáš ; Ing. Jan Janečka, Ph.D. ABB s.r.o. Brno (referee) ; Vdoleček, František (advisor)
This bachelor's thesis analyzes available options, methods and resources of monitoring environmental parameters. It focuses on environmental parameters, which can affect accuracy of measurement results. Practical work deals with design and implementation of model, which allows monitor environmental parameters at laboratory A4/603. Implemented model accesses actual and historical values of environmental parameters through web applications. The measured values from laboratory can be used for correction of technical measurement results done in this room.
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The change of the rain factor on the net of stations in the Czech Republic during 1961-2010
Střeštík, Jaroslav ; Rožnovský, J. ; Štěpánek, P. ; Zahradníček, P.
Precipitation totals do not express precisely the humidity conditions in the landscape. Therefore the Lang’s rain factor, constructed from monthly and annual average temperatures and precipitation totals on 267 stations in the Czech Republic during 1961-2010, has been used here. Its values are very different at different stations, the lowest they are at South Moravia and Labe lowlands. Its average for the whole territory displays a slow decrease during the 50 years, supplemented by strong fluctuations. The strongest decrease appears in the Northern boundary mountains. The same factor calculated only for summer displays stronger differences between highlands and lowlands, especially in South Moravian ones. Stronger decrease at North Moravia, especially in mountains, and very weak decrease at other parts takes place.
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Subseasonal temperature trends in Europe (1961-2000) and their links to atmospheric circulation
Cahynová, Monika ; Pokorná, L.
We use daily maximum and minimum temperatures and the daily temperature range from 136 stations in Europe in the period 1961–2000 to precisely locate their seasonal and subseasonal trends within the year. Linear trends are calculated for moving “subseasons” of 10, 20, 30, 60, and 90 days, each shifted by one day. Over most of Europe, the observed warming is greatest in winter. In Iceland and the Mediterranean, a pronounced warming is only present in summer. Significant autumn cooling was found in Eastern and Southeastern Europe for both TX and TN. Other non-warming periods occur in Western and Central Europe in February, April, and late June. Trends of DTR are inconclusive. Changes in the frequency of atmospheric circulation types usually explain a substantial part of the observed climatic trends; however, the influence varies between regions, times of the year, subseason lengths, numbers of circulation types, and input variables for the classification of circulation types.
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Subseasonal temperature trends in Europe (1961-2000) and their links to atmospheric circulation
Cahynová, Monika ; Pokorná, Lucie
We use daily maximum and minimum temperatures and the daily temperature range from 136 stations in Europe in the period 1961–2000 to precisely locate their seasonal and subseasonal trends within the year. Linear trends are calculated for moving “subseasons” of 10, 20, 30, 60, and 90 days, each shifted by one day. Over most of Europe, the observed warming is greatest in winter. In Iceland and the Mediterranean, a pronounced warming is only present in summer. Significant autumn cooling was found in Eastern and Southeastern Europe for both TX and TN. Other non-warming periods occur in Western and Central Europe in February, April, and late June. Trends of DTR are inconclusive. Changes in the frequency of atmospheric circulation types usually explain a substantial part of the observed climatic trends; however, the influence varies between regions, times of the year, subseason lengths, numbers of circulation types, and input variables for the classification of circulation types.
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Relation between plants and atmosphere in the current education of Science on the second stage of basic schools
ČEKAL, Tomáš
This bachelor thesis focuses on the relation between plants and atmosphere in the current education of Science on the second stage of basic schools. The thesis is divided into two main parts, a theoretical and a practical one. The theoretical part analyses an issue of three spheres which are furthermore observed in this bachelor thesis, namely: 1 Plants in relation to carbon cycle, 2 Influence of the atmosphere on plants, 3 Significance of plants for the atmosphere. The practical part consists of monitoring of the presence of separate spheres in the basic school textbooks (with the help of charts) and analysis of the 9th grade basic school pupils' knowledge in these spheres carried into effect based on the didactic test. The monitoring is worked up in the form of diagrams.
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The progress of wheat prices in France and in Germany between 1531 and 1785
Střeštík, Jaroslav ; Mikulecký, M. ; Mikulecký, L.
Mean annual wheat prices in Paris and in Cologne during the 16th – 18th century display a considerable similarity, which may be expected due to the small geographical distance. In the long-term scale the prices increase, later the increase becomes slower, and this course is similar in both countries. This variation is supplemented by short-time fluctuations, again similar in both countries. In the spectra of these time series a significant peak appears in the periods near 130 and 60 years, further ones near 35 and between 14-15 years, the latter being more apparent in data from Paris. The period of solar cycle (11 years) is not significant here. Correlation with mean annual air temperatures and mean annual sunspot numbers is negative, but only a little above the limit of significance (it moves between 0.14 and 0.22). In the long-term change long-term variations of mean annual air temperatures and solar activity, valid for both countries, reflect themselves. After subtraction of the parabolic trend these correlations become lower, on the other hand, correlations with precipitation totals are more distinct. All correlations are a little higher in Germany than in France.
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Possible periodicities in occurrence of wars in Europe during the last 500 years
Střeštík, Jaroslav ; Mikulecký, M.
The occurrence of wars and their regularities are always the subject of investigation for historians. During centuries one can find some relatively quiet periods as well as periods of frequent war conflicts. For a quantitative research special indices have been constructed some time ago, which are done for each year starting 1495 till 1975. In this series some significant periodicities can be found. The most significant appears around 55 years, further ones around 131, 78, and 35 years, and also some periods less significant. No one of them corresponds to significant periods occurring in most heliogeophysical quantities; only for some less significant a similarity can be found. Therefore the correlation with solar activity as well as with mean annual air temperatures is low, though not to be neglected. The similarity is higher for long-term variations than for shortterm fluctuation. During the long-term maximum of solar activity and long-term maximum of air temperatures, which occurs usually simultaneously, a quieter period may be expected.
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Evaluation of long-term climatological monitoring of Mokré louky wetland by Třeboň and of other meteorological stations related to a change of hydrological cycle
KOVÁŘOVÁ, Milena
This study presents a detailed evaluation of long-term climatic data obtained from the meteorological station at Mokré louky wetland by Třeboň. A method for evaluation of dependence of air temperature on precipitation cycle is proposed and applied. The data from Mokré louky are compared with data from other meteorological stations in Czech Republic as well as in Europe and surroundings. The obtained results confirm a strong dependency of solar radiation reaching the Earth surface and dependently also the air temperature on the precipitation cycle. They represent in this way a fresh point of view on reasons for climate change, where the climate change is considered to be caused by a gradual decrease of permanent vegetation and current global desertification of continents.
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