Coastway technical presentation5

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Coastway technical presentation5

  1. 1. Coastway – UAV data Acquisition and Processing Industry using UAV’s and Laser Scanning Mine and Quarry Mapping using UAV’s and Laser Scanners Kick-off Meeting 8-9/jan/2014
  2. 2. Identification of Forest plantation on Flyby map Pre Flight Planning of route over Forest Kick-off Meeting 8-9/jan/2014
  3. 3. Flight Plan uploaded to Auto Pilot in accordance with CAA / IAA / European Aviation Authority Regulations Kick-off Meeting 8-9/jan/2014
  4. 4. UAV Take Off – Mapping Glacial erosion in Iceland Kick-off Meeting 8-9/jan/2014
  5. 5. UAV Landing – Mapping Glacial Erosion Iceland Flight duration ,1 hour per battery Kick-off Meeting 8-9/jan/2014
  6. 6. What data will we record. Aerial view of Forest Plantation & Geo-referenced images Kick-off Meeting 8-9/jan/2014
  7. 7. What Can be created from the aerial data DEM/ DTM / DCM /Crown Sizes Calculating tree height from the laser altimeter. The profiling laser fires 248 times per second and records alternating first and last returns from each pulse, modelling both the canopy surface from the first returns and the underlying topography whenever a last return can penetrate through to the ground. As a result, the approximate height of trees in a forest stand can be determined from a DEM of the canopy surface (DCM), even when a correspondingly accurate DEM of the ground is not available, by examining the underlying profile of laser data. Combined with DEM or Stereo Analyst measurements of crown diameter, this data produces a simple model of the forest stand that can be used to estimate growth, standing biomass, and tree dimensions. Kick-off Meeting 8-9/jan/2014
  8. 8. Combining DTM, DEM, DCM & Crown size data with Laser scanned trees will enable a 3D model to be created Kick-off Meeting 8-9/jan/2014
  9. 9. Ground coverage 40% overlap Kick-off Meeting 8-9/jan/2014
  10. 10. UAV site coverage rate 2000ms (1 every 2 seconds) Kick-off Meeting 8-9/jan/2014
  11. 11. Registration of Images using Agisoft software Kick-off Meeting 8-9/jan/2014
  12. 12. Deliverables Kick-off Meeting 8-9/jan/2014
  13. 13. Delivering Geohazard/Geomorphological Models Mountain Forestry • A number of European programmes have assessed at a large scale geohazards (mostly landslides), for example Terrafirma, LSI, SAFER LIM and RLM, SLAM, PREVIEW, SAR.net, SAR.net2, DORIS and SafeLand • Use of UAV and other data sets gathered as part of this programme will allow more detailed mapping and practical assessment of geohazard with respect to local mountain forestry activity • • number of Geohazard/geomorphological constraints include for example: landslide, rockfall, soft ground, steep/rocky terrain, general groundtargets hydrological features, glacial conditions, features visible, gradie By quantifying the geohazard the appropriate forestry management technique can be nt of applied to optimise mountain forestry opportunitiessurface • The use of particular DEM and aerial imagery in combination with localised groundproofing would allow a rapid interpretation of geomorphology and identification of geohazard and terrain evaluation • Several approaches to geohazard mapping are available, as follows: Kick-off Meeting 8-9/jan/2014
  14. 14. Developing Geohazard/Geomorphological Models Mountain Forestry • A number of European programmes have assessed at a large scale geohazards (mostly landslides), for example Terrafirma, LSI, SAFER LIM and RLM, SLAM, PREVIEW, SAR.net, SAR.net2, DORIS and SafeLand • Use of UAV and other data sets gathered as part of this programme will allow more detailed mapping and practical assessment of geohazard with respect to local mountain forestry activity • • number of Geohazard/geomorphological constraints include for example: landslide, rockfall, soft ground, steep/rocky terrain, general groundtargets hydrological features, glacial conditions, features visible, gradie By quantifying the geohazard the appropriate forestry management technique can be nt of applied to optimise mountain forestry opportunitiessurface • The use of particular DTM and aerial imagery in combination with localised groundproofing would allow a rapid interpretation of geomorphology and identification of geohazard and terrain evaluation • Several approaches to geohazard mapping are available, as follows: Kick-off Meeting 8-9/jan/2014
  15. 15. Geohazard Mapping - Geomorphological Approach Landform Mapping and Qualitative Hazard Designation Stability Hazard Negligible Low Medium High Kick-off Meeting 8-9/jan/2014
  16. 16. Geohazard Mapping - Quantitative Approach Calculation of Landslide Hazard Kick-off Meeting 8-9/jan/2014
  17. 17. Geohazard Mapping - Quantitative Approach Calculation of Landslide Hazard from DTM & Engineering Data 500m 500m Landslide failure scar (2003) Kick-off Meeting 8-9/jan/2014
  18. 18. Creating and Accurate 3D Forest Model Accuracy of data will depend on a number of factors. •Access to the forest •Number of targets visible from aerial image •Quality of GPS cover •Clear view of the sky number of •Time of day •Canopy density targets •Gradient ofvisible, gradie the surface •Weather conditions / Wind nt of surface •Correct registration of all captured data to an agreed datum and coordinate system. Kick-off Meeting 8-9/jan/2014
  19. 19. Risk Safety and Planning are key to success Kick-off Meeting 8-9/jan/2014

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