|
|
Evaluation of suburbanization in Prague's hinterland - influence on landuse and on territory function.
Bromová, Petra ; Kupková, Lucie (advisor) ; Potůčková, Markéta (referee)
Evaluation of suburbanization in Prague's hinterland - influence on landuse and on territory function The main goals of this thesis are to describe land use changes in three time periods in cadastral units Dobřejovice, Modletice and Jažlovice situated in Prague's hinterland, to evaluate their influence on the territory function and to create a database of commercial objects in this area. There is a theme introduction in the first part. Furthermore, the thesis describes methods used for the data processing. The main part of the thesis is focused on the characteristic of the area of interest and describes the detected land use and territory function changes based on spatial overlays of time series of very high- resolution image data. The outputs of this work are maps of land use in 1994, 2004 a 2007, maps of land use changes in the particular time periods and the database of the commercial objects with their utilization purpose.
|
|
|
Land cover classification from hyperspectral images in recultivated areas of the Sokolov lignite basin
Málková, Hana ; Potůčková, Markéta (advisor) ; Kupková, Lucie (referee)
Land cover classification from hyperspectral images in recultivated area of the Sokolov lignite basin Abstract The aim of the dissertation is to establish a methodology for vegetation classification from hyperspectral data of the HyMap sensor. The final output is a supporting map for the investigation of mining impacts on vegetation health in the vicinity of surface quarries at the Sokolov lignite basin. Five different classification algorithms were applied on the data and the best result was put more precisely in the second classification round. Given the pixel size and desired result details, subpixel classification options were tested and the question of what level of classification details could be achieved with given data was answered. The results are part of the project "Assessment of Mining Related Impacts Based on Utilization of Airborne Hyperspectral Sensor ARES". Keywords: hyperspectral image data HyMap, land cover mapping, the classification alghoritm, subpixel analysis, Sokolov lignite basin
|
|
|
Application of imaging spectroscopy in monitoring of vegetation stress caused by soil pollutants in the Sokolov lignite basin
Mišurec, Jan ; Kupková, Lucie (advisor) ; Pavelka, Karel (referee) ; Homolová, Lucie (referee)
Forests can be considered as one of the most important Earth's ecosystems not only because of oxygen production and carbon sequestration via photosynthesis, but also as a source of many natural resources (such as wood) and as a habitat of many specific plants and animals. Monitoring of forest health status is thus crucial activity for keeping all production and ecosystem functions of forests. The main aim of the thesis is development of an alternative approach for forest health status based on airborne hyperspectral data (HyMap) analysis supported by field sampling. The proposed approach tries to use similar vegetation parameters which are used in case of the current methods of forest health status assessment based on field inspections. It is believed that importance of such new methods will significantly increase in the time when the planned satellite hyperspectral missions (e.g. EnMap) will move into operational phase. The developed forest health monitoring approach is practically demonstrated on mature Norway spruce (Picea abies L. Karst) forests of the Sokolov lignite basin which were affected by long-term coal mining and heavy industry and therefore high variability of forest health status was assumed in this case. Two leaf level radiative transfer models were used for simulating spectral...
|
|
|
Mapping of urban sprawl using remote sensing data
Vostracká, Barbora ; Potůčková, Markéta (advisor) ; Kupková, Lucie (referee)
Mapping of urban sprawl using remote sensing data Abstract Mapping of urban sprawl has been an often discussed topic recently. This work compares remote sensing methods and socio-geographic methods used for tracing urban area changes over a certain period of time, and for mapping of these changes. First the potential of socio-geographic methods for tracing urban area changes is examined, and advantages and disadvantages of these methods are evaluated. Then, in a similar way, remote sensing data and methods which can be used in this field are studied. Based on the example of Praha-západ district is illustrated how CORINE database data can be used for mapping of urban sprawl on the national and regional levels. On the example of Zličín and Hostivice cadastral areas it is shown how to classify high-resolution satellite images and how to interpret aerial images in order to create maps of urban area changes on a local scale. The outcomes of both methods were compared using RSO register data. This work aims to evaluate how suitable remote sensing data and methods are for monitoring and mapping of urban area changes, especially in areas of suburbanization. Keywords: remote sensing, urban areas changes, suburbanization, urban sprawl
|
|
|
Remote sensing for evalution of state and development of Spruce stands condition in the Giant Mountains
Musilová, Romana ; Kupková, Lucie (advisor) ; Štych, Přemysl (referee)
Bc. Romana Musilová: Využití dat DPZ pro hodnocení aktuálního stavu a vývoje smrkových porostů v Krkonoších Remote sensing for evaluation of state and development of Spruce stands condition in the Giant Mountains Abstract Monitoring the health status of forest areas using remote sensing methods are still under development. This master thesis focuses on the use of SPOT, Landsat, QuickBird and WorldView-2 images to evaluate condition of spruce stands in Giant Mountains National Park. For these purposes were selected vegetation indices available in the lite- rature. First satellite images were preprocessed and subsequently calculated vegetation indices. From the generally known were used Normalized Difference Vegetation Index, leaf area index and Simple Ratio. Than were calculated Green Vegetation Index and Red Green Index based on the monitoring of needles color changes. To evaluate moistu- re conditions were used indices Foliar Moisture Index and wide-band Normalized Diffe- rential Infrared Index. The goal was a comparison of the results of these indices and assessment of their applicability. Map outputs indices were compared with maps of de- foliation and mortality of coniferous stands by Ing. Milan Stoklasa. Keywords: remote sensing, Norway Spruce stands, Giant Mountains, vegetation indi- ces, SPOT,...
|
|
|
Evaluation of suburbanization in Prague's hinterland - influence on landuse, landscape stability and structure.
Kubečková, Jana ; Kupková, Lucie (advisor) ; Štych, Přemysl (referee)
Evaluation of suburbanization in Prague's hinterland - influence on landuse, landscape stability and structure Abstract The aim of this study is to evaluate the background of suburbanization in Prague, to evaluate the development of landscape, landscape structure and landuse. The first part of this work is devoted to analysis of domestic and foreign literature, which deals with suburbanization and evaluation of landscape structure. Another part is devoted to practical evaluation of the landscape using air photos and satelite pictures and orthophotos in three cadastral in 1994, 2004 and 2007. It concerns the cadastral Šeberov, Hole u Průhonic and Újezd. The evaluations are based on selected factors. It is found that the proportion of buildings and vegetations is increasing all the time and also found that for example scrub and forests were protected from new development. Furthermore, the most significant changes in land use were described and the landscape structure was evaluated according to selected factors. The outputs of this work were maps of land use in different years, maps of stable und unstable areas in different periods, maps of vegetation changes and tables summarizing the results of the evaluation parameters of the structure. Keywords: suburbanization, landscape structure, landuse, patch,...
|
|
|
The influence of spectral resolution on land cover classification in Krkonoše Mts. tundra
Palúchová, Miroslava ; Červená, Lucie (advisor) ; Kupková, Lucie (referee)
The influence of spectral resolution on land cover classification in Krkonoše Mts. tundra Abstract The aim of this diploma thesis was to specify the spectral resolution requirements for classification and to identify the most important spectral bands to discriminate classes of the predefined legend. Aerial hyperspectral data acquired by AisaDUAL sensor were used. The method applied for the selection of the important bands was discriminant analysis performed in IBM SPSS Statistics. The most discriminative bands were found in intervals 1500-1750 nm (beginning of SWIR), 1100- 1300 nm (longer wavelengths of NIR), 670-760 (red-edge) and 500-600 nm (green light). The classification of the selected bands was realized in ENVI 5.4 using the Support Vector Machine classifier, achieving overall accuracy of 80,54 %, Kappa coefficient 0,7755. The suitability of available satellite data for the classification of tundra vegetation in Krkonoše mountains based on spectral resolution was evaluated as well. Keywords: tundra, Krkonoše, classification, spectral resolution, class separability, discriminant analysis, hyperspectral data
|
|
|
Identification of potentially suitable habitats for occurrence of European Ground Squirrel (Spermophilus citellus) using remote sensing
Kadeřábková, Tereza ; Kupková, Lucie (advisor) ; Hais, Martin (referee)
The aim of the thesis was to evaluate the possibilities of remote sensing (RS) data with different spatial resolution (UAV data with 5cm resolution, RapidEye satellite data with 5m resolution and Sentinel-2A data with 10m resolution) and of remote sensing methods (unsupervised and supervised classifications, vegetation indices NDVI and TVI) to identify potentially suitable habitats for European ground squirrel. The analyses were first carried out in Velké Pavlovice small area of interest and consequently in a broader area of interest comprised of five regions of Moravia and Slovakia. Data form mapping of biotopes and squirrels' burrows collected within a project "Sysli pro krajinu, krajina pro sysly" (European ground squirrels for landscape, landscape for European ground squirrels) were also used for the analyses. Remote sensing methods were first tested in Velké Pavlovice area using RapidEye data. The method providing the best results in the detection of European ground squirrel burrows was then used for a burrows detection in the broader area of interest (five regions) using Sentinel-2A data. The accuracy of results was defined as a proportion of the burrows detected by the resulting layer derived from RS data to the overall number of burrows mapped in the field. Best results were obtained for...
|
|
|
Classification of line features from remote sensing data
Kolankiewiczová, Soňa ; Potůčková, Markéta (advisor) ; Kupková, Lucie (referee)
This work deals with object-based classification of high resolution data. The aim of the thesis (paper, work) is to develope an acceptable classification process of linear features (roads and railways) from high-resolution satellite images. The first part shows different approaches of the linear feature classification and compares theoretic differences between an object-oriented and a pixel-based classification. Linear feature classification was created in the second part. The high-resolution QuickBird satellite images showing Prague surroudings were used for this classification. Using Definiens Developer software and the paper of Nobrega et al. (2006) the segmentation and object-based classification was created on the selected area of the satellite image. Minimum distance method of a pixel-based classification of the same part of image was generated to compare these two methods of classifications. Another classification was created in an another satellite image to verify developed classification process. At the end a visual and statistical accuracy assessment was done to compare an object-oriented and a pixel-based classification . Powered by TCPDF (www.tcpdf.org)
|
|
|
Evaluation of Long-Term Land Use Changes in Czechia at Different Scale Levels
Janoušek, Zbyněk ; Bičík, Ivan (advisor) ; Kupková, Lucie (referee)
Long-term evolution of nature-society interactions can be studied by using data of land use change. In the thesis is used a detailed statistical database of Czechia (developed at Charles University in Prague, Faculty of Science). The database allows monitoring changes of eight categories of land use in the period 1845-2000. Attention is devoted to the growing differentiation of land use at different scale levels, the thesis is concentrated on functional specialization of czech regions. Deepening division of labour between regions is reflected by increasing territorial concentration of land use. This process is monitored by using three methods. Ternary plots present an overview of the differentiation trends of land use. Spatial autocorrelation methods present the general development and specific areas of functional specialization in Czechia. A review by territorial heterogeneity rate provides a detailed look at the change of territorial concentration of land use. The thesis operates with three territorial classifications (hydrological, geomorphological and administrative) at two regional levels and the level of Czechia. Results are interpreted using the driving forces (such as technological development, economics, historical events, society). The final part of the thesis compares the development of...
|
guest ::
