LiDAR topography is a fast and efficient way to capture 3D data. The use of laser pulses to calculate distances, capture accurate measurements, and measure ranges is gaining popularity. This simple way of collecting data is accurate, fast, and flexible. But how does LIDAR topography work on a technical level? LIDAR works by pointing a laser at a target surface on the ground or underwater.
The surface reflects the light back to the LIDAR equipment and the sensor records the reflected light to measure the distance traveled. This data is then combined with the position and orientation of the LIDAR equipment, which is measured using the GPS receiver and internal measurement systems. This creates a set of three-dimensional spatial coordinates that include latitude, longitude, and height, creating a combination of data called a point. In the case of landslides, LiDAR scans obtain a better representation of the surface of areas with vegetation.
Based on the shaded relief, slopes and topographic contours, it is possible to identify the morphological characteristics common to landslides. We have extensive experience working with LIDAR technology and we understand how LIDAR mapping works and how to use it.