LiDAR for Coastal Engineering

LiDAR was recently deployed to a coastal site in Malaysia to provide a rapid, detailed and accurate site plan in preparation for engineering design works.

The vegetation on site (illustrated below) proved no obstacle to the LiDAR penetration, allowing a detailed and accurate terrain definition. The LiDAR Digital Terrain Model (DTM) as shown right, clearly defined the subtle drainage patterns along the coastal area, supporting flood modelling and accurate earthwork volumes.

The terrain model and resultant orthophoto were installed into the engineering team’s workflow, with on-site instruction and guidance on how to incorporate the intricate details offered by LiDAR into their planning decisions.

This project was a successful demonstrator of the suitability of LiDAR to Asian coastal environments, providing details on coastal zone mapping, vegetation penetration and terrain definition.

Project Deliverables
 - DTM accurate to 0.15m
 - 0.5m contours
 - 0.2m resolution colour orthophotos

For more information on LiDAR, click here.
 

Above: The terrain was defined by an Optech 3100EA LiDAR sensor with an average point spacing of less than 1m.
Digital aerial imagery shown was captured at the same time as the LiDAR data.