LiDAR

The LiDAR (Laser Imaging Detection and Ranging) system is a technology used to calculate the distance between the LiDAR device, usually mounted on an aircraft, to any object or surface.

The LiDAR system works by sending a laser beam to the object or surface that we want to measure and then analyzing the time it takes for this laser to “bounce” or return to the device, allowing the distance between them to be calculated.

These surveys are very useful in areas with a high density of vegetation, since they can “penetrate” the vegetation and data can be obtained from the surface that cannot be obtained by photogrammetric methods. In addition, it produces large scale point cloud datasets that can be managed, visualized, analyzed, and shared.

Three-dimensional image of the environment obtained with LiDAR

Imagen tridimensional del entorno obtenida con LiDAR

LiDAR benefits

  1. Gathering of terrain elevation data in a dense forest or jungle, where photogrammetry fails to reveal the exact surface of the terrain due to a dense layer of vegetation

  2. Costs efficient

  3. Accuracy in detecting elevations of objects or terrain

  4. Data can be quickly collected with high precision

  5. Surface data has a higher sample density, improving results for certain applications, such as floodplain delineation

Resultados LiDAR de nubes de puntos en su versión no colorizada

Where can LiDAR be used?

Topography

LiDAR laser technology is extremely useful and has many applications. One of the main ones is, as we have pointed out, topography, since it allows obtaining very detailed topographic models.

Mapping

It can be used as a data source for contouring and contouring processes for digital orthophotos, for example property survey or cartography.

Archeology

But surveying and mapping are not the only ones using LiDAR. Also archeology. For example, a team of archaeologists from the Danish University of Aarhus used this system and discovered a trelleborg, an ancient Viking fortress, built between 970 and 980. This discovery, the first in 60 years, will allow us to learn more about this civilization.

Industry

The industry gains great advantages by using this technology. For example, they facilitate the inspection and monitoring of industrial sites and oil and gas networks, as well as for the establishment and maintenance of electrical networks.

Architecture

Architecture and engineering obtain speed and precision from LiDAR data when scanning buildings or works with complex geometries.

Geology

Another application of LiDAR is in geology. Its use has made it possible to detect possible movements of tectonic plates, as well as faults. Also study how earthquakes occur, as well as other phenomena such as volcanic eruptions or the evolution of glaciers.

Farming

Agriculture has a lot to get from LiDAR. For example, it is used for forest management, measuring tree forest masses, thus estimating the leaf area and other geometric parameters, performing digital mappings of the different vegetation areas. And in precision agriculture it provides all kinds of georeferenced information.

Otrher LiDAR services

  • Other LiDAR services
  • LiDAR for flood studies
  • LiDAR in urban planning
  • Pipeline construction
  • LiDAR in the planning and evaluation of gas and oil pipelines
  • Power grid management
  • Planning of new electrical transmission lines
  • Repowering of electrical networks
  • Mine exploration and planning
  • Mining infrastructure
  • Mine in operation
  • Forest industry

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