Airborne laser scanning is the fastest and possibly the only surveying method that enables the collection of 3D data of areas that were hit by natural disasters for example storms, earthquakes, floods, and thus, to provide a basis for damage analysis and assessment shortly after the incident. Point clouds scanned at different points of time are compared to each other to find significant differences between them e.g. detection of man-made changes in urban areas.
Change detection is needed, for example, for monitoring shifting and changes of soil due to human interaction, erosion, movements of dunes, or landslides, for changes caused by volcanic pressure and for estimating the volumes of sediment moved by floods.
Buildings, constructed river banks or roads have a great effect on flow dynamics and flood propagation leading to frequent urban flooding and thus, our efforts to improve the effectiveness of models. LiDAR derived point clouds can be incorporated into relief, rescue and flood simulation software to provide advanced topographical information for risk assessment.
AeroPhoto Co Ltd is capable of provide its clients with disaster management services, which require accurate spatial data assessment of each occurrence so as to produce reliable hazard maps and flood prediction models, enhance risk prevention systems and establish damage maps for insurance, government.