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For further information, please contact
Tim Webster, Halifax Branch Chair
timothy.webster@nscc.ca
Terrestrial LIDAR Data Acquisition, Processing and GIS Applications
Dr. Tim Webster and Dr. Chris Hopkinson
Applied Geomatics Research Group AGRG/COGS
Middleton, NS
contact: timothy.webster@nscc.ca
This half-day workshop is designed to introduce Geomatics Professionals and
students to terrestrial LIDAR technology and GIS applications of LIDAR data.
The Applied Geomatics Research Group of COGS has been involved with terrestrial
LIDAR surveys since 2000 and in 2005 acquired their own system, an ALTM 3100
system manufactured by Optech. The contents of the workshop will include
an (1) introduction to the technology and the components of a LIDAR system,
(2) mission planning considerations, (3) data processing of the aircraft
trajectory and laser ranges, (4) laser point cloud manipulation and classification
into ‘ground’ and ‘non-ground’ targets, (5) data
exchange formats and import into a GIS, (6) construction of different surfaces
from the LIDAR point cloud – Digital Surface Model, ‘bald-earth” Digital
elevation Model, Normalized Height Model, Laser backscatter Intensity, and
(7) examples of GIS applications using LIDAR data including: coastal flood-risk
mapping from storm-surges and sea-level rise, geomorphology (bedrock and
surficial mapping, watershed delineation, stream incision, coastal erosion),
landcover mapping, vegetation mapping and change detection, and hydrology
(snow depth and glacial down-wasting).
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