A UAV LiDAR and Photogrammetry survey of a former landfill in Warrington, Cheshire for Peel L&P
The Brief
Flythru were appointed by Geoterra on behalf of Peel L&P to carry out a UAV survey using both low level LiDAR and photogrammetry techniques on a former landfill site and adjacent land in Woolston Eyes, near Warrington, Cheshire.
The survey data was required by Peel L&P to enable them to generate a 3D model of the site and plan for the Butchers Field Extension toward to woodland East of the site.
![](https://www.flythru.co.uk/wp-content/uploads/2020/04/WoolstonEyesCaseStudy.jpg)
The Solution
Geoterra experienced geospatial engineers in collaboration with our partners FlyThru in collaboration with Geoterra our experienced geospatial engineers utilised a bespoke heavy lift UAV equipped with a high definition DSLR camera and Routecene LiDAR sensor to fly over both the landfill site and adjacent land, generating a large multipath multi return laser scan point cloud. The point clouds were then post processed to produce an extracted ’bare earth’ Digital Terrain Model. Both sites were also flown with a DJI Phantom 4 UAV equipped with a high definition DSLR camera generating a series of photographs for the photogrammetry section of the survey.
Ground control points were set up across both sites and surveyed to OSGB OSTN15 National Grid.
![](https://www.flythru.co.uk/wp-content/uploads/2020/04/WoolstonEyes_Ortho-1.jpg)
The Deliverables
FlyThru provided the client with a range of key deliverables including a Digital Surface Model, Digital Elevation Model, Ortho-rectified mosaic photography and a 3D point cloud, plus an extracted bare ground DTM from a heavily vegetated DSM.
![](https://www.flythru.co.uk/wp-content/uploads/2020/04/WoolstonEyes_DTM.jpg)