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Local Modelling of the Fractal Dimension on Digital Elevation Models
Ič, Tomáš
This study uses the box-counting method for local computation of the fractal dimension on a digital elevation model. The local method offers more detailed vertical ruggedness data than the global approach, providing deeper insight into surface structure. The work introduces an innovative local approach to determine the fractal dimension of surfaces and tests it on selected data samples. This work presents an effective geoscientific tool with potential cross-industry applications.
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Throwshed Analysis Based on Digital Elevation Model
Červík, Tadeáš
Currently, computing impact areas that can be hit by any projectile is treated by using partial and generalised approaches. Therefore, the objective of this work is the development of automated procedures in the form of a freely available GIS tool programmed in Python language that uses the digital elevation model, physical parameters and settings to compute 'throwshed' - areas, which can be reached with any projectile shot from any given place. The archaeology of conflicts is considered an area of application, but the field of use may be larger. The paper deals with the very basics of a physical model for generating the results, which are also present in the work along with the discussion thereof. The presented results show many functionalities of the tool and offer a few use cases.
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Flight Trajectory Planning for Unmanned Aerial Vehicles
Horeličan, Tomáš ; Jílek, Tomáš (referee) ; Gábrlík, Petr (advisor)
This thesis deals with the problem of planning a complete flight trajectory (ie. horizontal and vertical components) for unmanned aerial vehicles (UAV) with a main focus on maintaining a constant height and distance from the terrain. It includes the design of the trajectory planner itself, which is created in the Matlab environment. The design is mainly focused on small rotary aerial vehicles and drones. Main concepts of geolocation are discussed in the first chapters, which includes means of realization, basic terminology and theory that is needed in order to sufficiently track an object and its height on Earth. Principles of aerial survey, its use cases and means used in this thesis are also described. Following chapters present a complete hierarchical overview of the functionality of the designed planner and provide demonstrations with simulations. The practical part discusses results obtained from real flights of the vehicle.
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Radio Network Multiobjective Design
Víteček, Petr ; Olivová,, Jana (referee) ; Kadlec, Petr (advisor)
This thesis deals with radio network design for a chosen part of a map. Here map is represented by digital map file, which was created within the project DEM. First step is to calculate distances between points in chosen map. With help of optimization algorithms, appropriate position of transceiver in the map and parameters of radio systems are determined, also final coverage by radio signal, represented by intensity of electric field or received power in whole map. The optimization algorithm is used to find the best solution in terms of input parameters (e.g. power of transmitter, height of mast) and resulting coverage of land by radio signal.
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Verification of the "Čirá - Kopanina" fault existence using morphostructural analysis and geophysical surveying
Findžová, Leona ; Tábořík, Petr (advisor) ; Kašing, Martin (referee)
This thesis focuses on the verification of the Čirá-Kopanina fault existence using morphostructural analysis and geophysical surveying. The verification of the fault zone was based on the analyses of the digital relief model, river network parameters and selected relief features that indicate tectonic activity with a high probability. Based on these analyses, the fault was identified and subsequently verified using geophysical methods. The searched tectonic line passes through the village of Čirá in the Jindřichovice upland district (Krušné hory Mts), continues east of the village of Kopanina and heads south into the Cheb Basin along the Libocký Brook. The direction of the Čirá-Kopanina fault was determined as approximately north-south (348ř - 168ř) and thus corresponds to the north-south orientation of the hypocentres of the West Bohemian earthquake swarms. The Čirá-Kopanina fault zone could thus be a potential source area for the earthquake swarms at the boundary of the Cheb Basin and the Krušné hory Mts. crystalline complex. However, its activity needs to be verified by a further research. Keywords fault, tectonics, digital elevation model, morphostructural analysis, geophysical surveying, Jindřichovice uplands, Krušné hory Mountains
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Possibilities of remote geomorphological mapping of dolines in the conditions of the Bohemian Karst
Hochmanová, Lucie ; Křížek, Marek (advisor) ; Uxová, Tereza (referee)
The study of karst areas is important for the inventory of local forms and their subsequent protection. The aim of this bachelor's thesis is to create a database and determine the morphometric characteristics of dolines in the protected landscape area of the Czech Karst above DEM 5G and to evaluate the possibilities of remote mapping of these karst forms. The mapping was based on training data from the Moravian Karst, but the morphometry was found to be different from the dolines in the Czech Karst. A total of 74 dolines were found, of which 58 were mapped on DEM 5G and 16 were added from the literature. Average values of morphometric characteristics were found for length 30.34 m, width 18.65 m, depth 2.57 m and circularity 0.663. Half of them show a linear arrangement and an elongated oval shape, which may indicate a continuity with the fractures. The majority of all mapped dolines form clusters on Devonian limestones in the northwestern area of the Bohemian Karst Protected Landscape Area. As a result, two map outputs with possible locations of dolines and a database with morphometric characteristics are available. Keywords: doline, Bohemian Karst Protected Area, digital elevation model, remote sensing mapping
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Modeling the impact of the potential anti-erosion measures in the selected area
KOKEJL, Karel
This diploma thesis deals with the topic of water erosion. Specifically, it is a matter of mitigating this process by applying an suitable anti-erosion measure. One of the goals of this work is that a suitable system of anti-erosion measures with a focus on technical anti-erosion measures is proposed for the selected area. Other technical aspects of implementation into the existing digital elevation model and verification of its functionality using the USLE equation in GIS (in this case in the ArcMap program) and modeling of povrchového runoff. In the theoretical parts of the work, the reader is acquainted with the basics of water erosion, detection of water erosion and anti-erosion hazards. Then it is introduced the introduction of the area of interest and the methodological procedure of the work, which is focused mainly on the calculation of erosion and dimensioning of anti-erosion measures.
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Defunct small water reservoirs in the Ploučnice River basin
Purm, Marek ; Kocum, Jan (advisor) ; Doležal, Tomáš (referee)
The purpose of this bachelor thesis is to provide an understanding of the soil water retention, particularly focusing on small water reservoirs and their water retention potential within the region. Additionally, this paper uses available historical maps to investigates a historical development of water reservoirs in the river Ploucnice basin. The research first provides systematic review of a secondary research, based on Czech and foreign resources, focusing on the topics and issues mentioned above. This chapter includes investigation of physio-geographic properties of the river Ploucnice basin, particularly focusing on hydrological analysis of this area, using research data from Czech Hydrometeorological Institute. The primary research focused on a historical development of water reservoirs in the area of selected basin. Key words: soil water retention, small water reservoir, digital elevation model, climate change, Ploučnice river, Robečský brook
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