LIDARundersøkelser

LIDARundersøkelser is a Danish term referring to LIDAR surveys. LIDAR, which stands for Light Detection and Ranging, is a remote sensing method that uses pulsed laser light to measure distances to the Earth's surface. These surveys are conducted using an instrument called a LIDAR scanner, typically mounted on an aircraft or drone. The scanner emits laser pulses and measures the time it takes for them to return after reflecting off surfaces. This precise timing allows for the calculation of the distance to each point, creating a dense cloud of 3D data points, often referred to as a point cloud.

The data collected from LIDARundersøkelser is highly accurate and can be used for various applications. One primary use is in creating detailed digital elevation models (DEMs) and digital surface models (DSMs). DEMs represent the bare earth topography, while DSMs include all features on the surface, such as buildings, trees, and vegetation. This information is invaluable for urban planning, infrastructure development, environmental monitoring, and disaster management. For example, LIDAR data can be used to assess flood risk, map forest canopy density, or detect subtle changes in terrain over time. The ability to penetrate vegetation canopy also makes it particularly useful for geological and ecological studies. The resulting datasets are processed and analyzed to extract specific features and create maps or 3D models.