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Mining Areas – Geographic Information Systems + Remote Sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Potential mining areas Active mines Abandoned mines Dumps Reclaimed areas GIS Remote sensing
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Mining Areas – GIS for potential mining Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Potential mining areas GIS Maps: geological, hydrogoelogical, of deposits, soils, faults, …..
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Mining Areas – GIS for potential mining Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Vector data Queries in attribute data
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Mining Areas – GIS – examples of useful applications Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Crossection of brown coal seam Contour lines of thickness of the rock cover Dangerous area - 0 – 20 m thickness of the upper layers Dangerous area - < 20 – 60< m thickness of the upper layers
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Mining Areas – GIS – land use/mining development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 19341960 1975 1999
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Mining Areas – GIS – land use/mining development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 19341960 1975 1999
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Mining Areas – GIS – land use/mining development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 19341960 1975 1999
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Mining Areas – GIS – land use/mining development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 19341960 1975 1999
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Mining Areas – GIS – reclamation development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 013 Reclamation development
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Mining Areas - remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Potential mining areas Active mines Abandoned mines Dumps Reclaimed areas Remote sensing Record of the state of the land cover at the moment of imagery data collection Evaluation of the imagery – updated maps, object extraction change detection = evaluation of several images to determine development of the are
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Mining Areas – remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Remote sensing offers: - records of the current state of: land cover - 2D, 3D, 4D data for a project of mining activities Potential mining areas Active mines Abandoned mines Dumps Reclaimed areas
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Mining Areas – remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 data: optical, radar, lidar offer: updating of land cover/open pits state in 2D, 3D and 4D and thus creating model of development of mining and accompanying activities Data are – spaceborne, airborne, or from unmanned aerial systems with: Various time resolution Various spatial resolution Various spectral resolution
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Mining Areas – spaceborne remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Spaceborne data: time resolution - about 3 days (on 50° latitude) spatial resolution - 8 sensors PAN < 1,0 m, 1 sensor MS< 2 m spectral resolution - PAN, MS, Hyper (Hyperion 220 bands, 30 m) Advantage : regular repetitive measurement on programed orbits Disadvantage operational functioning by programming – various look angle
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Mining Areas – RS – reclamation development Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Analysis of mean value and standard deviation of NDVI Values calculated for individual areas
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Mining Areas – RS – reclamation – change detection Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Analysis of NDVI change during a time period. Increase and decrease of vegetation coverage in%
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Mining Areas – airborne remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Airborne data collection: time resolution - irregular --- on demand spatial resolution – cm – depends on height of the flight spectral resolution – multispectral cameras/scanners, thermal cameras, hyperspectral scanners, SAR, lidar Disadvantage: irregular repetitive measurement dependent on weather
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Mining Areas – UAV remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Unmanned Aerial Systems: time resolution - irregular --- on demand spatial resolution – cm – depends on height of the flight spectral resolution – multispectral cameras/scanners, thermal cameras, hyperspectral scanners, Advantage: Operational, easy manipulated by non-specialist Disadvantage: Irregular repetitive measurement dependent on weather
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Mining Areas – UAV remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 quadro-, hexa-, octo- copters Several hundred meters above the terrain GPS/IMU, gyroscope, Automated stabilization 15 minutes flight, two cameras (MS and thermal)
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Mining Areas – UAV remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Orthophoto Žacléř DSM
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Mining Areas – UAV remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Thermal data
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Mining Areas – GIS + remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Conclusion I: 1)GIS – various data storing – a comprehensive tool 2)Remote Sensing: 1)Land surface type information 2)Digital Surface Model (DSM) 3)Subsidences (interferommetry) 4)Development of areas 3)GIS – data storing 4)So what and how?
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Mining Areas – remote sensing Faculty of Civil Engineering, CTU in Prague GWF - Mining and Exploration 15 May 2013 Conclusion II: GIS application is clear and necessary to have a complete information in one system RS application – various purposes and thus various data - it is a sensitive and responsible task – which should be carefully analyzed in individual case
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