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Study of possibilities protection against rural zone water
Matějková, Jana ; Roubcová, Ing Radka (referee) ; Milerski, Rudolf (advisor)
This bachelor thesis deals with the first part of surface runoff and measures to combat this phenomenon. It explains what it is surface runoff, and what are the most common methods to protect against soil and surface runoff caused by water erosion on slopes. The second section paper examines the threat to the village Otaslavice to Vyškovsko rural area with water. The solution aims to use existing facilities for drain a surface water and the in capacity in relation to n-year occurence of torrential rainfall and runoff caused by them. For the valuation of drain age is used directive to calculate to the drain age of VMP and for as segment the capacity of waters equipment.
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Study of possibilities protection against rural zone water
Hyžák, Aleš ; Ing.Radka Roubcová (referee) ; Milerski, Rudolf (advisor)
This bachelor thesis deals with the problem of soil erosion, surface runoff and its subsequent influence on the situation in affected areas. It also addresses the technical measures proposed in the watershed affecting surface runoff. The scope of work can be content to divide into three parts. The first one deals with soil erosion vulnerability and describes surface runoff. The second section describes the most common technical measures implemented and their impact on surface runoff. Part three contains a specific problem solving situation in the Sněžné village.
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Flood prevention by using biotechnical measures
Pospíšil, Jan ; Pavlík, František (referee) ; Dumbrovský, Miroslav (advisor)
This thesis investigates the design of complex systems-natural flood control measures in the area of the cadastral municipality Jeseník nad Odrou. Based on the analysis and exploration of the territory, it was suggested a possible solution by erosion and hydrological GIS tools. To identify areas at risk of erosion and runoff conditions were used a digital elevation model, Wischmeier-Smith equation and model DesQ. Subsequently, the effectiveness was evaluated by comparing the results navžených measure erosion and runoff conditions before and after measures.
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Vyhodnocení retenčního potenciálu vybraného povodí
Trávničková, Mirka
This thesis evaluates the potential retention in the catchment area of the Barchov brook, in its components parts. For identifying and evaluating hydrological characteristic, it was first necessary to mapping the area in terms landscape cover, topography terrain, soil properties and divided it into individual sub-basin. This data was processed in the ArcGIS version 10.0. The output of which were characteristics for each sub-basin such as: the length of the stream, the slope of the stream, size area, slope area, 1-day maximum rainfall amount, surface roughness and runoff curve number CN, which entering into the hydrological model DesQ-MaxQ. The output of the model were hydrological characteristics of the river sub-basin with the values the size of the potential retention, the volume of runoff, percentage of the stored water, flood wave volume, time of concentration and maximum flow. When evaluating the individual hydrological characteristics were taken into account morphological, soil, landscape and vegetation properties of the specific sub-basin.
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Analysis of factors affecting a direct runoff from the catchment area
NEUBAUEROVÁ, Andrea
This diploma thesis follows my bachelor thesis. The main purpose of the bachelor thesis was to clarify fundamental terms and to explain the sorting of particular parts of a direct flow that involves both the surface saturated flow and the hypodermic flow. This diploma thesis is focusing on the origin of direct flow in a river basin. Specifically, it deals with river sub-basin P6, P52, and P53, which are located in Kopaninský potok river basin. Furthermore, it deals with Jenín I. and II. river basins and the last analysed is Ostřice river basin (SO2). Factors influencing direct flow are researched on all river basins. It is impossible to say that the origin of direct flow is caused solely by a single factor; it is always the result of multiple factors. Among these factors belongs the atmospheric precipitation, type of soil, vegetation, climatic and anthrophogenic conditions, land use, and inclination of the area. The bachelor thesis explains the issues of multiple methods of flow separation, but this diploma thesis is primarily focused on two methods for calculation of ratio between the direct and the total flow. 1) Empirical method GROUND, which is used to separate hydrographs of medium daily river basin flow. 2) Method of digital filter by Lyne Hollick separate fast and slowcomponents from the overall concentrated flow and are based on the theory od signal analysis. Afterwards, the results of flow separation were compared to the factors influencing the origin of the direct flow. The daily total flow rates for every analysed river basin were used as the input data for calculating the flow separation.
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Direct run-off - formation and separation methods
NEUBAUEROVÁ, Andrea
The bachelor´s thesis occupies with an issue of a direct flow. The main purpose is the explanation of the basic terms of the issue and the explanation of the sorting of particular parts of a direct flow, that involves a surface saturated flow and a hypodermic flow. Subsequently the thesis describes its participation in the hydrogeological cycle, which means the participation in the permanent circulation of a surface and underground water on Earth. The extreme precipitations are dangerous due to their force, total sum and intensity. The inception of hydrological occurrences like floods or dry seasons is possible owing to this. The fallen precipitations have a big influence on a surface flow and a transportation of soil particles. The thesis is focused on the inception and the genesis of a direct flow. Further it focuses on the factors that influence the flow. Among these factors belong climatic and anthrophogenic conditions, vegetation, type of soil and atmospheric precipitations. There are clarified selected methods of potential separation which are explained and described in detail. This part of the issue mentions CN curve method, GROUNG method, MPGM, analysis of dropped subdivisions and finally method of digital filter (Chapman). These methods divides the flow on an elemental flow and direct flow.
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Methods of runoff components separation
KUBEŠ, Ondřej
The paper deals with monitoring and measurement of runoff. This is particularly important to identify water supplies in the catchment area, or timely detection of extreme hydrological events such as floods and droughts, and because of the potential rate of spread of pollutants. The value of the runoff is particularly important for irrigation needs for agriculture. Further work is focused on the individual components of runoff, the methods used for their separation and a detailed description of various types of runoff. The practical part includes measurement of the discharge at the Jennínsky stream catchment, located near the border with Austria, the Český Krumlov district. For analyses discharge from the hydrological years 2005 ? 2008 was chosen. And using the three selected methods of separation (method GROUND, method and method MPGM digital filter according to Chapman), which are further described and explained. These methods divide runoff into the baseflow component and direct runoff component. These results are further compared with the method of reccesion curve analyses performed on four events. The work should show the differences in results of various methods.
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Hydrologic modelling in GIS
LIPPL, Jan
The purpose of this work was to present the computer supported hydrological simulation. The methods are demonstrated on the Jenínský stream catchment, which serves as an experimental catchment of the Depatment of Land Adjustement, Faculty of Agriculture, University of South Bohemia since 2004. The hydrological analyses are solved in the ArcGIS 9.2 software, ArcView level and its extension ArcHydro. Digitized contour lines layers, watershed divide and the stream were used as a basis for functionality testing. Subsequently the results were compared with the reality, and the possible differences were discussed. The result is evaluation of the use of particular tools of the mentonioned software for the tasks solved in catchment hydrology. This work will also be used as a guideline for the use of ArcHydro for the extension of the education of modelling in the subjects concerning catchment hydrology.
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