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experience working with LiDAR has been varied and includes surveying
transmission line surveys for infringement surveys, forestry
and coastal mapping. We also provide ground
control, quality control and post processing services for
laser scanning work. We also own and operate a terrestrial laser
scanner, capable of scanning up to 50,000 points per second
and obtaining high accuracy measurements, please visit our terrestrial
laser scanning website.
Below
are some examples of laser scanning work that we have undertaken.
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| Laser
scanning survey for proposed open-cast mine - Greenland
(240 miles north of the arctic circle!) |
Laser
scanning survey in Lyme Regis(UK) for coastal monitoring.
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Laser
scanning survey in Scotland. Laser scanning can map the
terrain 'beneath' the tree canopy |
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We
can process the LiDAR for analysis to best suit your requirements.
For example, we can produce contour models, cross sections,
maps coloured by elevation, reflectance, aspect etc...We can
output the data in many formats for use in a variety of programs
including AutoCAD or for use in a GIS. We can also analyse
the data, for example by producing maps showing water flow
directions and flood maps or by calculating volumes. Data
can be exported as a file containing points for use in PLS
CADD for example or we can process the data to view it as
a 3D Digital Terrain Model. Digital
Terrain Models can be enhanced by overlaying photography for
realistic 3D renderings.
Image
shows Digital Elevation Model with aerial photography overlaid,
hover your cursor over the image to see a contour model (shaded
by elevation) that was created from the Digital Elevation
Model.
Merrett
Survey Partnership have developed in-house software for processing
LiDAR data. For example, we have developed our own software
to remove foliage so that a 'bare earth model' can be created
and are able to transform LiDAR data into any coordinate system.
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