National Repository of Grey Literature 41 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
Hydrology of mountain seepage lakes
Kohn, Tomáš ; Stuchlík, Evžen (advisor) ; Šobr, Miroslav (referee)
The aim of this thesis is a review of the hydrological balance of mountain lakes, focusing on lakes without ground outflow, or with a huge share of seepage upon the outflow. This thesis deals, step by step, with the methods of collecting data for each input and output to the hydrological system. It is also concerned with the possibilities of monitoring ground water movement and rainfall-runoff models.
Influence of climate force forest management on hydrological regime of headwater streams
Pícha, Zdeněk ; Stuchlík, Evžen (advisor) ; Křeček, Josef (referee)
Hydrological functions of catchment area are an important part of the ecosystem. There are three approaches that deal with the issue of catchment hydrological functions. These three approaches are summarized in the work, there are shown the advantages, disadvantages and results of some studies. Hydrological functions of catchment area, especially the runoff process, significantly affect forests growing in the catchment, especially their species composition, age and type of soil. The paper summarizes insights about how that tree species, especially beech (Fagus sylvatica) and Norway spruce (Picea abies) affects runoff, water infiltration into the soil and interception. The next section is then summary the influence of forests on floods, which is not so large as is generally expected. At the end of the work is an overview of some studies dealing with the hydrological balance and runoff processes were carried out in the headwaters of the river Litavka and outline possible further research in this area. Key words: runoff, catchment, forest, infiltration, hydrological modelling, pair catchments
Mapping of the Litavka catchment using GPS
Hojcsková, Daniela ; Matějíček, Luboš (advisor) ; Brůna, Josef (referee)
This thesis is aimed on the study of Global Positioning System (GPS) and its utilization possibilities in nature sciences such as ecology, hydrology, botany and the others. The main contribution of this work is the investigation of current possibilities of the most accurate data collection by using GPS and their subsequent processing in GIS with focus on small catchment. Other methods of terrain data collection are described and compared with GPS in this work, as well. Practical part of the thesis focuses on characteristics of the locality, technical equipment and data editing gained in terrain. The study locality is the Litavka catchment, which is situated in Brdy. The geographical ground data, were gained from ZABAGED and were completed with results of own measuring in terrain. The output of the thesis is the digital terrain model of upper stream of the Litavka River modified by interpolation. Key words: GPS, DTM, GIS, mapping, catchment, Litavka, interpolation
Deployment of kindergartens and defining their catchment areas in the South Bohemian Region.
ŠRUC, Lukáš
This bachelor's work focuses on the deployment of kindergartens and defining their catchment areas in the South Bohemian Region. The main goal is a more detailed analysis of the parent education and limitation of catchment areas in relation to transport accessibility. The theoretical part deals with the problems associated with the regions, transport, mobility and spatial characteristics of preschool education in terms of services. In the methodological part is described data base with the issue of the acquisition, evaluation questionnaire, draft of possible methods determining the catchment area with the help of public transport and the availability of preschool device to individual transportation. In the analytical part are evaluated findings on capacity and charts of parent education, creating catchment circuits for each municipality with kindergarten within districts and defining the catchment areas of sufficient or lacking capacity. Everything is compared with the number of children aged 3 to 6 years for the current situation and development for future comparison is made with the age category of 0-3 years. An important component of this work is map outputs, which presents selected characteristics of maternal education in the area.
The influence of landscape changes on erosion and runoff
Uhrová, Jana ; Toman,, František (referee) ; Váchal,, JAN (referee) ; Dumbrovský, Miroslav (advisor)
The aim of this thesis is to evaluate the influence of land use changes on erosion and runoff conditions. For the purpose of the evaluation, two catchments with different areas and pedological characteristics were selected (the catchment of the river Luha and the catchment of the Hubenov reservoir). In these catchments, a comparison of 26 selected land covers was conducted. The individual land covers were evaluated first in four seasons of the 1950s and 1990s, second according to the today's status of landscape by means of a detailed yearly evaluation conducted between 2002 and 2013, and third according to a land cover conceptual design. Analyses of not only land cover, but also geomorphological, pedological and hydrological conditions were carried out for both of the catchments by means of geographic information system (GIS) tools. The quantification of soil loss was performed by means of two methods – the method USLE with the use of ArcGIS program and the soil loss model WEPP. The crucial factor of the runoff evaluation of the preset end profiles with respect to the formation of concentrated runoffs and their catchment areas was the hydrological model DesQ-MAXQ. The selected land cover scenarios of the river Luha were then exposed to the conditions of a real rainfall that occurred in 2009 and that resulted in floods in the area. Furthermore, a rainfall-runoff model was created for this catchment area in HEC-HMS; the land cover scenarios were again subjected to the above-mentioned real rainfall. The land use changes of the catchment area of the reservoir Hubenov were assessed also with respect to the concentration of substances in the profiles studied.
The analysis of public facilities and catchment of urban areas to services in selected districts of South Bohemian region (Strakonice, Písek, Tábor).
STAŇKOVÁ, Vendula
This work deals with the topic of catchment of urban areas Strakonice, Písek and Tábor. Main goal is analysis of public facilities and consequent making of catchment in all urban areas of monitored area, based on Reilly gravity model. From estabilished data there is created map, on which is based comparing of regionalisation administrative division and catchment monitored area.
Separation of runoff based on data from Jenínský stream catchment area using various methods
KUBEŠ, Ondřej
The aim of this paper is to describe and compare various methods of runoff separation. Therefore it is necessary to explain basic hydrological terms that are important for understanding the water regime of landscape. Long-term monitoring of the water regime of the whole catchment area can provide successful detection of hydrological extremes such as droughts or devastating floods. The paper is divided in two parts. The theoretical part includes the literature rerview explaining basic hydrological terms and individual components of water cycle in nature, summary of methods usually used for runoff separation, and the description of the applied methods. The practical part specifies the locality of Jenínský stream, located in the Český Krumlov district. This part further reflects separation of runoff based on the daily runoffs. Methods GROUND, MPGM and Chapman digital filter have been chosen to compare primary runoff and direct runoff. We have also considered the method of separation of minimal monthly runoff according to Kille for seven-year period in relation to the methods mentioned above. Finally, we have chosen several discharge waves for the method of recession curve analysis. The paper compares direct and primary runoff separated by individual methods in the catchment area of our interest.
Studie o stavu hydrografické sítě povodí Bradavy (Bradava‚ Bojovka‚ Mítovský potok)
Bureš, Petr ; Gergel, Jiří
Studie je zpracovaná jako základní podklad komplexně pojatého záměru revitalizace krajiny v povodí Bradavy, zaměřené na hydrografickou síť. Jejím cílem je systémové řešení celkového pohledu na hydrografickou síť řešeného území, s vyjádřením naléhavosti jednotlivých navrhovaných opatřeních. Zpracováním celého povodí Bradavy bude vytvořen materiál zachycující syntetický obraz veškerých dějů v celém území a bude získán ucelený přehled o stavu všech prvků hydrografické sítě, o příčinách jejich ohrožení a o možnostech jejich revitalizace, která následně může vytvořit základ revitalizace celé krajiny v povodí Bradavy. Vytvořen bude vstupní podkladový materiál pro návrh revitalizačních opatření i dalších aktivit v území. Shromážděné podklady dokumentují současný stav zájmového území z hlediska: přírodních podmínek, vodohospodářských podmínek a antropogenních zásahů.
Revitalizace pravostranné části povodí Rybnického potoka
Zahradnictví a ekologie, Hluboká nad Vltavou ; Kavková, Renata
Studie Revitalizace pravostranné části povodí Rybnického potoka (č.h.p. 1-06-01-138) - v části popisné jsou obsaženy: osídlení krajiny, přírodní podmínky (geologická stavba území, hydrogeologická a geomorfologická charakteristika, půdní charakteristika povodí, klimatické poměry, hydrologická charakteristika vodní sítě, vegetace, živočichové...), aktuální stav krajiny (vymezení krajinných segmentů, stanovení ekologické kostry krajiny, zhodnocení stavu vodních toků...), územní systém ekologické stability (hodnocení funkčních prvků, posouzení navržených prvků), část návrhová (návrh protierozních opatření, revitalizace koryt vodních nádrží, revitalizace vodních nádrží a mokřadů, realizace ÚSES...), mapové výstupy (mapa současného stavu a využití území, mapa odvodněných ploch a stavu vodních toků, mapa navržených opatření na vodních tocích, mapa historického využití území).
Vývoj metod predikce stavů sucha a povodňových situací na základě infiltračních a retenčních vlastností půdního pokryvu ČR
DHI Hydroinform, a.s., Praha ; Český hydrometeorologický ústav, Brno ; Výzkumný ústav meliorací a ochrany půdy, Praha ; Český hydrometeorologický ústav, Praha ; Daňhelka, Jan ; Šercl, Petr ; Meszároš, František ; Vaněček, Stanislav ; Samek, Josef ; Hrnčíř, Viktor ; Tachecí, Pavel ; Středa, Tomáš ; Šálek, Milan ; Kohut, Mojmír ; Rožnovský, Jaroslav ; Vetišková, Dagmar ; Vopravil, Jan ; Novák, Pavel ; Řičicová, Pavla
Svazek obsahuje zprávy za dílčí úkoly: DÚ 1 - Analýza a mapování infiltračních schopností půd ČR (Zpracování retenční vodní kapacity půd povodí horní Jizery); DÚ 2 - Modelování retenční schopnosti a vláhových podmínek krajiny; DÚ 3 - Rozvoj a testování modelovacího systému pro predikci povodňových odtoků v malých povodích (3.1. Vytvoření a testování srážkoodtokového modelu MIKE SHE na pilotním povodí a 3.2. Metoda CN-křivek.

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