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Determination of evapotranspiration from small catchments
Toušková, Jitka ; Šípek, Václav (advisor) ; Možný, Martin (referee) ; Brom, Jakub (referee)
Evapotranspiration (ET) plays a significant role in the hydrological balance. The terms potential (PET) and reference (RET) evapotranspiration are often used while estimating its rate. The doctoral thesis deals with the estimation of PET, RET and other selected processes. First, the influence of net longwave radiation (the component of radiation balance) on the rate of PET was examined. It was found that the standard methods result in the significant differences in PET estimation due to the absence of model calibration to local conditions. The original model caused distinction in the PET evaluation for the Liz experimental catchment by up to 100 mm/year. Calibration of the parameters of two commonly used methods for calculating net longwave radiation reduced the error in PET evaluation to less than 20 mm/year. PET or RET estimation itself can be performed by many direct or indirect methods. Their accuracy is highly discussed. This work focused on selection of suitable methods and their further testing on conditions of 18 stations in the Czech Republic. 37 methods were compared with measured data. It was proven, that the best results in this region were achieved by combination methods (with average RMSE of 1.2 mm/day, 18.6 mm/month, and 33.3 mm/year). Among individual models, the radiation-based...
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Evaluation of forest vegetation based on time series of remote sensing data
Laštovička, Josef ; Štych, Přemysl (advisor) ; Brom, Jakub (referee) ; Bucha, Tomáš (referee)
Příloha k disertační práci: Abstrakt v AJ (Mgr. Josef Laštovička) Abstract This dissertation thesis deals with the study of forest ecosystems in the central Europe with the time series of multispectral optical satellite data. These forest ecosystems have been influenced by biotic and abiotic disturbances for the last decade. The time series of the satellite data with high spatial resolution allow the detection and analysis of forest disturbances. This thesis is mainly focused primally on free available Landsat and Sentinel-2 data, these two data types were compared. From methods, the difference time series analyses / algorithms were used. The whole thesis can be divided into two main parts. The first one analyses usability of classifiers for detection of forest ecosystems with per-pixel and sub-pixel methods. Specifically, the Neural Network, the Support Vector Machine and the Maximum Likelihood per-pixel classifiers were used and compared for different types of data (for data with high spatial resolution - Landsat or Sentinel-2; very high spatial resolution - WorldView-2) and for classification of protected forest areas. The Support Vector Machine were selected as the most suitable method for forest classifications (with most accurate outputs) from the list of selected per-pixel classifiers. Also, Spectral...
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Evaluation of forest vegetation based on time series of remote sensing data
Laštovička, Josef ; Štych, Přemysl (advisor) ; Brom, Jakub (referee) ; Bucha, Tomáš (referee)
Příloha k disertační práci: Abstrakt v AJ (Mgr. Josef Laštovička) Abstract This dissertation thesis deals with the study of forest ecosystems in the central Europe with the time series of multispectral optical satellite data. These forest ecosystems have been influenced by biotic and abiotic disturbances for the last decade. The time series of the satellite data with high spatial resolution allow the detection and analysis of forest disturbances. This thesis is mainly focused primally on free available Landsat and Sentinel-2 data, these two data types were compared. From methods, the difference time series analyses / algorithms were used. The whole thesis can be divided into two main parts. The first one analyses usability of classifiers for detection of forest ecosystems with per-pixel and sub-pixel methods. Specifically, the Neural Network, the Support Vector Machine and the Maximum Likelihood per-pixel classifiers were used and compared for different types of data (for data with high spatial resolution - Landsat or Sentinel-2; very high spatial resolution - WorldView-2) and for classification of protected forest areas. The Support Vector Machine were selected as the most suitable method for forest classifications (with most accurate outputs) from the list of selected per-pixel classifiers. Also, Spectral...
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Temperature characteristics of surface using remote sensing methods
Hofrajtr, Martin ; Štych, Přemysl (advisor) ; Brom, Jakub (referee)
Temperature characteristics of surface using remote sensing methods Abstract The aim of this thesis is to design a methodology for refining the land surface temperature values obtained from Landsat 8 satellite data in areas with diverse land cover. The research section describes factors influencing the radiation of the Earth's surface. Also mentioned are current methods used for processing infrared thermal data and calculate land surface temperature. The practical part describes satellite and airborne data used in the analytical and verification process. All parts of the applied method leading to the subpixel value of the land surface temperature are described in detail in the method part. The results are then compared with airborne verification data with better spatial resolution and with currently used methods. Finally, the pros and cons of this method and its possible improvement in the future are mentioned. Key words: land surface temperature, land surface emissivity, satellite data, Landsat 8, airborne data, subpixel method, Czech Republic
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Evaluation of methods and input data for land cover classification: case study of the former military areas Ralsko and Brdy
Paluba, Daniel ; Štych, Přemysl (advisor) ; Brom, Jakub (referee)
Taking advantage of Earth Observation (EO) data for monitoring land cover has attracted the attention of a broad spectrum of researchers and end-users in recent decades. The main reason of increased interest in EO can be found mainly in open data of Landsat and Sentinel archive. The main objective of this study is to evaluate the accuracy of the classification algorithms Maximum Likelihood (ML) and Support Vector Machine (SVM) using Landsat 8 and Sentinel-2 data in the case studies of the former military training areas Brdy and Ralsko, which have undergone a very specific land cover development. The study evaluates the land cover in both case studies in 2016 and based on the obtained results discussing a usefulness of the selected data and methods. The results of the land cover classification achieved satisfactory accuracy - the overall accuracy was higher than 85 %. Based on the expectation, the results of accuracy based on SVM algorithm are higher than results obtained by ML algorithm. The highest accuracy has reached in the land cover classes of water bodies and coniferous forests, on the contrary, the lowest accuracy in built-up areas, sparse vegetation and bare soil. Keywords: Earth Observation, Support Vector Machine, Maximum Likelihood, Czechia, Sentinel-2, Landsat 8
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The comparison of perception of Pilsner Urquell and Budějovický Budvar pale lager brand
Šálený, Michal ; Postler, Milan (advisor) ; Brom, Jaroslav (referee)
The aim of the Master thesis is to analyse the perception of Budweiser Budvar and Pilsner Urquell brand on the Czech beer market. Theoretical part of the thesis deals with the brand and its meaning, its strategic management and the methods that are related to the brand research. In practical part I apply the theoretical knowledge to the Budweiser Budvar and Pilsner Urquell brand and I am coming up with detailed analysis with respect to its values and the current communication campaign. The main part of the work consists of qualitative research, in which I am investigating what attitudes Czech people have to these brands. I am comparing results between both brands. Based on the survey I am suggesting possible recommendations for the future development of Budweiser Budvar and Pilsner Urquell brand on the Czech beer market.
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Modelling of ecosystem service change
Cudlín, Pavel ; Pechanec, V. ; Purkyt, Jan ; Jakubínský, Jiří ; Štěrbová, Lenka ; Cudlín, Ondřej ; Plch, Radek ; Seják, J. ; Včeláková, Renata ; Brom, J.
Submitted report introduced results obtained by researchers from the Institute of Global Change Research and the Department of Geoinformatics of University Palacký in Olomouc. From all activities the following activities are the most important: Habitat mapping of agricultural and non-agricultural plots in the Kopanický stream catchment according to Seják at al. (2003) a Seják at al. (2010); Computation of the indicators of landscape fragmentation and ecological stability for Kopanický stream catchment; Valuation of land use change from the point of view of the optimalization of the selected ecosystem functions performance and selected provisioning and regulating ecosystem service provision, including financial valuation; and Valuation of functional land use from point of views territorial planning of small villages and environmental demands to landscape.
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Mathematical Methods and Exercises in Astronomy
BROM, Jiří
The aim of this thesis is to create collections of examples for the subject Astronomy taught for students of pedagogical faculties, studying this discipline as a part of physics courses. Due to very different mathematical knowledge of students I have chosen typical and not much difficult examples oriented to several branches of astronomy. Each part of examples begins with a self-contained theoretical introduction. The difficulty rises gradually from trivial to more complicated examples. The examples are mainly focused on motions in radial gravitational fields.
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Marketing strategies comparison of SK Dynamo České Budějovice and FK Olympie Týn nad Vltavou
Brom, Josef ; Průša, Přemysl (advisor) ; Brom, Jaroslav (referee)
This diploma thesis deals with sport marketing - specifically with marketing strategies comparison of professional and amateur football clubs. Forms of commercial communications are described and specifics of sport marketing as well, then there SK Dynamo České Budějovice and FK Olympie Týn nad Vltavou presented including their marketing strategies. In frame of this work there was performed survey focused on perception of the club among it's own fans. The results of the survey were also compared with results of survey from bachelor thesis of the same author - the aim was to assess the influence of amateur marketing department of FK Olympie Týn nad Vltavou on perception of the club.
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The expansion of Budweiser Budvar n. c. to the markets of selected countries in Sub-saharan Africa
Matoušková, Jaroslava ; Zamykalová, Miroslava (advisor) ; Brom, Jaroslav (referee)
The thesis concerns with appraisal of the potential of sub-Saharan Africa region as the new attractive region for international breweries, among others also for Budějovický Budvar n. c. In order to determine whether the sub-Saharan region is suitable for the expansion of this company, the initial chapters of this work deal with company Budějovický Budvar n. c., its overall strategy and marketing concept chosen for its flagship Budweiser Budvar brand. The following part of this thesis has been devoted to characterize the region of sub-Saharan Africa and using of PEST analysis method it evaluates African markets in terms of their political, economic , socio- cultural and technological environment. In the next chapter of this thesis I analyse specific environment of the African beer market. This analysis shows that the potential of this region is very significant also in this branch. In conclusion of this work, there is the comparison of selected indicators in individual African countries. On the basis of this comparisons top 10 countries from sub-Saharan region were selected, that have the greatest potential to become the new export territories of company Budějovický Budvar n. c.
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