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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Characterisation of waterfalls in Krkonoše (Czechia) with the use of airborne laserscanning data
 Hájek, Robert ; Lysák, Jakub (advisor) ; Janata, Přemysl (referee)
Characterisation of waterfalls in Krkonoše (Czechia) with the use of airborne laser scanning data Abstract This thesis deals with the possible use of airborne laser scanning data for the characterisation of waterfalls in Krkonoše Mountains. Data, which are used, was provided by The Krkonoše mountains national park administration. The objective of the thesis is a description of a new method how to locate the waterfall, measure its height, calculate basin area and create a longitudinal profile. The main research method is the analysis of the digital terrain model, derived from ALS data. The analysis is based on the use of ArcGIS 10.4.1 hydrological tools to detect the position of watercourses and to find optimal visualizations for locating crests and bases of the waterfalls. The characteristics of 28 selected waterfalls were obtained by using the proposed method. The end of the work presents the results and there are also discussed imperfections that were detected during application of the method. Keywords: airborne laser scanning, waterfall, Krkonoše
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Status quo and development trends of remote sensing usage for forensic ekotechnique: forest and trees
 Introvičová, Sabina ; Janata, Přemysl
This paper refers to possibility of Unmanned Aerial Vehicle (UAV) usage for FEFT experts’ needs. Different Remote Sensing Stations (Czech Geological Survey, Forest Management Institute and others) obtain Czech territory actual pictorial data from satellites together with aerial images, LiDaR data from Ministry of Agriculture, Ministry of Defense and Czech Office for Surveying Mapping and Cadastre (COSMC) joint project that deals with regular two years scanning of the Czech Republic. Remote Sensing Stations also have resources for obtaining actual aerial photographs of investigated objects and localities through commercial subjects operating own airplanes. State organizations initiating expertise do not have resources for actual scanning of the investigated localities with airplanes. Forensic experts depend on COSMC products. COSMC is the only one of the organizations dealing with Czech territory scanning which has authority to sell actual aerial images if are available. Remote-controlled UAVs can aboard equipment for remote sensing. UAVs service expenses are many-times lower than aircraft service expenses. Department of Geoinformation Technologies at Mendel University Brno has a multirotor UAV available that is equipped to gain optical and infrared band data.
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Vliv uživatelského nastavení GPS přijímačů na přesnost určení polohy v podmínkách lesních porostů
 Janata, Přemysl
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See also: similar author names
2 Janata, Pavel
5 Janata, Petr
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