Is an acronym for LI ght etection nd anging. This is a technique which can be used to measure the distance, speed, rotation, chemical composition and concentration of a remote target where the target can be a clearly defined object, such as a vehicle, or a diffuse object such as a smoke plume or clouds. The Agency uses an aeroplane to fly over the LIDAR target.
A scanning and ranging laser system that produces accurate Digital Terrain Models. Can be used for contour modeling, however, the lack of breaklines disallows the creation of cartographically aesthetic contours. Please contact Surdex to find out if your project is right for LiDAR.
instruments that transmit light to a target. The light interacts with the target and some of the light is reflected back to the instrument, where it is analyzed. The change in the properties of the light enables some properties of the target to be determined. The time for the light to travel to the target and back is used to determine the distance to the target.
Light Detecting And Ranging. A technique used to detect atmospheric constituents or related parameters such as atmospheric extinction coefficient. Light is produced in a modulated source and the resulting backscattered or reflected light is analyzed to quantify some property of the atmosphere.
( Li ght etection nd anging, also known as Airborne Laser Swath Mapping or ALSM) - a technology that employs an airborne scanning laser rangefinder to produce detailed and accurate topographic surveys. LIDAR can be used to accurately measure the topography of the ground, even where overlying vegetation is quite dense. (see Puget Sound LIDAR Consortium)
LIDAR (Light Detection and Ranging; or Laser Imaging Detection and Ranging) is an optical remote sensing technology which measures properties of scattered light to find range and/or other information of a distant target. The prevalent method to determine distance to an object or surface is to use laser pulses. Like the similar radar technology, which uses radio waves instead of light, the range to an object is determined by measuring the time delay between transmission of a pulse and detection of the reflected signal.