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Weather Station
Beneděla, Pavel ; Šedivá, Soňa (referee) ; Havlíková, Marie (advisor)
This thesis deals with conception of proposal and implementation of a weather station. Weather station is composed of three main parts which are measuring station, showing station and USB wireless receiving module. Measuring station measures basic meteorologic variables and sends measured variables through wireless communication. Showing station is designed to present measured data with graphics user interface and generate data for a web server.
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Influence of rainfall drainage events on nutrients loss in river basins
STREITOVÁ, Eva
The aim of this bachelor thesis is to clarify the influence of rainfall drainage events on nutrients loss in river basins and which of these rainfall drainage events are the main reason for the loss. This thesis describes the elemental nutrients ( nitrogen and phosporus belong here) occuring the most often and in the biggest amount in our waters. The thesis also describes their occurence in waters and follow-on eutrophication of waters. Further, the factors influencing the drainage during the rainfall event are defined. These factors determine, by their activity, what aliquot part of rainfall drains on the surface, when and in which sequence the individual aliquot parts of rainfall come to river basin, whether water runs off the surface quickly or whether it soaks into the soil. These processes implicate the well-known cycle of water in the nature, which is consequently described in this thesis.
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Erosion danger of soil blocks with selected crops and recommendation of suitable cultivation against erosion
JIRSOVÁ, Monika
This thesis deals with different types of soil degradation under the conditions in the Czech Republic. The first part is focused on the evaluation of the causes and course of degradation of soils in the present time. Among the most serious degradation factors may be included the following: pedocompaction, dehumification, land appropriation, bad infiltration, water and wind erosion. In the Czech Republic, only water erosion alone threatens 42% of all agricultural land. In the thesis organisational, technical and agrotechnical anti-erosion control measures are summarised. Their utilisation, efficiency and sophistication are also described. In the next part of the thesis there are six specific land blocks in the same farm in South Bohemia presented. Each of these blocks has a different acreage, the average slope, the crops cultivated and different representation of strongly threatened and moderately erosion-threatened vulnerable areas. The thesis evaluates the number of plants per 1 sq. m, the condition and density of the growth due to the erosive threat to all of these localities.
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Methods of evaluating the seasonal distribution of rainfall and differences in this distribution within a limited area
MÁCHA, Vít
This bachelor thesis is writen as a literature retrieval concerning the temporal distribution of rainfall within a small areas. The formation and classification of rainfall is described, as well as the methods of measurement and the typical course of rainfall in a different time periods. Furthermore, the work deals with the describtion of possible methods for the evaluation of the temporal distribution, especially the statistical methods. Methods inquire into the comparison of rainfall among the raingauge stations and the distribution of rainfall during the time period. Another possible utilization of time sequences of the precipitation amounts is also described in this thesis, namely for the forcast of probable time of repetition of some extreme situations. The methods for the evaluation of trends in time sequence are also described. The final part is devoted to the variety in rainfall distribution during a different time periods (day, month, year) on a relatively small areas.
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The chemical and physical parameters of precipitation waters in the Stropnicko region.
MORBICEROVÁ, Iveta
This work aimed to evaluate long-term changes of selected chemical and physical parameters of rainwater from their own rain gauge stations Stropnicko. Chemical and physical parameters influence the rate of loss of substance in the landscape through the soil environment. In particular, the amount and concentration of dissolved sulphates and nitrates, affecting the value of the current pH. Samples were taken from their own rain gauge stations Stropnicko. Names of stations from which samples were taken are Horní Stropnice, Nakolice, Paseky and Nové Hrady. Rainfall were measured between the years 2005-2011 and were subjected to chemical analysis.
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Theoretical basis for determining the design of erosion transport crash.
BLÁHA, Vladimír
Atmospheric precipitation are given by a total railfall, the spatial distribution and intensity. All of these factors, along with climatic conditions, vegetation and soil type, take part in the total runoff. Extreme rainfall is dangerous with its energy and total rainfall, but also with its intensity, which has great influence on surface runoff and transport of soil particles. There are dozens of programs for processing Curve Number and total runoff.
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Evaluation of flood flows in the basin Jenín
LEHOVCOVÁ, Lucie
The aim of this thesis is to evaluate flood flows in the basin Jenín stream. Part of this work is the description of the territory that I prepare from the perspective of the geomorphological, geological, pedological, hydrological, agro-natural, climatic and biotic. For flood flows, I used data for the hydrological year 2009 that I acquired from Thomson weir, where meters are installed. In the first part of this thesis, I conducted field research the functionality of the drainage group. The result is data that recorded performance shafts. In the next section I dealt with the evaluation of quantitative indicators of precipitation, precipitation operation in relation to catchment flows on the cap and providing a critical period in terms of the spring thaw.
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Rainfall - runoff relationship in small mountainous catchments
Tesař, Miroslav ; Šír, Miloslav ; Pražák, J.
The singular phenomenon of flow instabilities was observed in a small catchment: in some situations, the water supplied by rain caused a pronounced decrease in the soil water content. This soil water movement can be explained by assuming an irregularly oscillating outflow of soil water into lower horizons. In these situations a large volume of water flows through the soil; on the hydrological scale, this phenomenon forms a great part of the outflow from a watershed. The phenomenon can be described in the frame of the instability driven flow theory and explained as consequence of the porous soil bodyŽs capacity to become conductive in results of a very little change of its moisture. In this way, the soil profile can attenuate or amplify the rainfall pulses during their transformation to the outflow.
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