LIDAR - Airborne Laser Mapping and Flood Risk Assessment.

The article reports on the advantages of Light Detection and Ranging (LIDAR) data collection system, an airborne laser mapping technique that produces accurate elevation data, in England and Wales. It discusses the development of processes that allow surface objects to be identified and removed by Geomatics Group, a specialist business unit within Great Britain's Environment Agency. It offers information on other sensors and aerial digital cameras that provide geographic information systems (GIS) ready thematic data including the Compact Airborne Spectrographic Imager (CASI) and the Thermal Airborne Broadband Imager (TABI)