Lidar (Light Detection and Ranging) is a remote sensing technology that uses laser light pulses to measure distances to the Earth. It is an acronym for Light Detection and Ranging, and it can be connected to aircraft such as airplanes, helicopters or drones, satellites, cars, terrestrial or portable devices, and even mobile phones. There are two types of Lidar: topographic and bathymetric. Topographic Lidar typically utilizes a near-infrared laser to map the land, while bathymetric Lidar uses green light that penetrates the water to measure the elevations of the seabed and riverbeds. Digital elevation models (DEMs) are naked terrestrial (topographic) models of the Earth's surface.
By using only terrestrial returns, you can create a DEM. However, this is different from digital terrain models (DTM) because DTMs incorporate contours. When the Lidar system collects the data, point cloud, all the Lidar data points are not ranked as to what they are affecting. We have extensive experience working with Lidar technology and understand how Lidar mapping works and how to use it. Lidar technology has many applications in various industries such as surveying, engineering, construction, mining, forestry, agriculture, archaeology, geology, and more. It can be used for mapping terrain features such as mountains, valleys, rivers, lakes, and other natural features.
It can also be used for measuring elevation changes over time or for creating 3D models of buildings or other structures. Lidar technology is becoming increasingly popular due to its accuracy and cost-effectiveness. It is also becoming more widely used in autonomous vehicles for navigation purposes. With its ability to measure distances accurately and quickly, it is becoming an invaluable tool for many industries.