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Data capture for creation of DTM
Ondráček, Daniel ; Šváb,, Tomáš (referee) ; Kalvoda, Petr (advisor)
This thesis deals with the the capture of data for digital terrain model. The specified location was measured in cooperation with the student Tomáš Kobližek. Surveying networks were auxiliary survey points that were measured by GNSS. Measurements were connected to the system Uniform Trigonometric Cadastral Network and Baltic height system after the settlement. Detailed points were measured by tacheometry and comply with third accuracy class and have been tested by CSN 01 3410. The main result of this thesis is special map at scale of 1:500.
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Creation of DTM and orthophotomap in Brno-Líšeň
Chupáčová, Mária ; Kalvoda,, Petr (referee) ; Hanzl, Vlastimil (advisor)
Bachelor's thesis is focused on the creation of DTM and orthophotomap in Brno-Líšeň. Introductory part of the thesis is devoted to photogrammetry basis, methods of aerial images proccesing and creation principles of digital terrain model and orthophotomap. The second part describes detailed working procedure in the Photomod software. The final part compares accuracy of resulting orthophotomap and the check geodetic survey outcome of given locality.
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Data capture for creation of DTM
Kobližek, Tomáš ; Vondrák,, Jiří (referee) ; Kalvoda, Petr (advisor)
The subject of this thesis was to collect data for digital terrain model in the western part of the valley Kombutského stream between the villages Kotvrdovice and Jedovnice. It was built a network of auxiliary measuring points of which were measured specified territory by using tacheometry method. Then were calculated coordinates and height of measurement points. It was tested accuracy of control-points. From the measured data was drawn thematical map with scale 1 : 500. The final data were serve for puposes of subject GE14 Field Training II.
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Does a physical geographer need millions? Experience with terrestrial laser scanning in geographical survey
Kuda, František ; Divíšek, Jan
In this paper, we present our experience with terrestrial laser scanning (TSL) in geographical filed-survey. This technique provides extremely accurate 3D model of given object or locality, which consists of millions points (so-called point cloud); each of them is determined by X, Y and Z coordinates. However, usability of this large amount of points fundamentally depends on researcher's requirements (i.e. on the type of required output) as well as on the conditions in the field. For example, if one needs to create accurate digital terrain model of small area with dense vegetation, only few points may be usable for final interpolation of digital terrain model. As dense vegetation has to be filtered out, data pre-processing becomes technically more demanding and more time-consuming and accuracy of final model necessarily decreases. For these reasons, we emphasize that, in geographical survey, TSL is the most effective for modelling of small geomorphological objects and landforms which are not covered by vegetation and also for making profiles and cuts. This should be taken into consideration when the filed-survey is prepared.
Fulltext: content.csg -  PDF
Plný tet: UGN_0426446 - PDF
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Analysis methods for displaying terrain relief
ČERNÍKOVÁ, Kristýna
The goal of this thesis is to describe the methods of visualization of the terrain relief, ranging from historical ways to current means, which employ software devices. It´s also to gather all available charts for the selected locality and perform an analysis of development of visualization of the terrain relief, which will be based on the collected data. Another goal was to compare the accuracy of the height scripts with the help of designed longitudinal profiles from obtained height script plans, the derived. State map in the scope of 1: 5000 and various map sources. Last at not least to explain the process of creation of the digital terrain model in ArcGIS software ? program.
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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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Creation of vertical surveying with using the program Atlas DMT.
ŠRÁMEK, Jan
The central theme of my dissertation is the introduction to the creation of a digital terrain model in the area of recultivation of Chabarovice former softcoal strip mine near Usti nad Labem, especially it deals with land slide area Rabenov. This area is monitored using geodetic and geotechnical methods since 2003 to declare the area to be stable which would allow its full planned utilization. This thesis is a part of the terrestrial and satellite measurements for staged, performed within the project MSM. As input data were used points located by Topcon total station TCN 2006. The aim of my dissertation is to create a digital terrain model of a large scale using the program DMT Atlas.
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Aplication of geodtic methods of mapping while surveying of positional and diagrammatical sketch for the purpose of special maps creation.
NOVÁČEK, Martin
The work is intent on the aplication of geodetic methods of mapping while surveying of positional and diagrammatical sketch for the purpose of special maps creation. The aim of the work is to create special map and then digital terrain model. The theoretic part is intent on the maps in general, special maps and their kinds, the methods of mapping and the digital terrain models. In the practical part, there is the evaluation of the geodetic methods as same as the process of the creation of the special map and the digital terrain model. The following part is about examination of the possible contribution of the digital model of the terrain for the branch of land adjustment.
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Cration of digital terrain model for the Jeninsky stream catchment and analysis of valley lines.
JURÁNEK, Stanislav
The aim of the thesis is localization and interpretation of paths of concentration runoff in digital terrain model. Digital terrain model(DTM) is processed for the catchment of the Jenín stream, where The Faculty of Agriculture has held the research since the year 2004. For creation of DTM following software programs were used for comparison: Erdas and ArcGIS. Digitalized maps of contour lines for this catchment were the backgrounds for creation of the DTM. Localization of paths of concentration runoff and natural thalwegs was made on created DTM. Then was the comparison of models and the real topography of the catchment realized. Possible reasons of differences were discussed in discussion. Different (in colours and resolution) variations of DTM with localized paths of concentration runoff are the result, with the view of better legibility and more truly representation of real topography of the landscape.
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