APPLICATION AND ANALYSES OF AIRBORNE LIDAR TECHNOLOGY IN TOPOGRAPHIC SURVEY OF TIDAL FLAT AND COASTAL ZONE

摘要

LIDAR(Light Detection and Ranging) is a new technology of acquiring three-dimensional (3D) coordinates with high precise and density, which gathers laser measure distance, computer, GPS(Global Positioning System) and INS(Inertial Navigation System) in the integral whole. The topographic survey in intertidal zone is the basis work of protecting, exploitation and management of the TFACZ, and also is very important in the survey engineering of our country. This paper briefly introduces LIDAR Technology; Then on the basis of the analyses of the character and demand of TFACZ(Tidal Flat And Coastal Zone), the analytic result indicates that LIDAR technology is the most effective means of solving problems of geographical data acquisition in TFACZ; discusses lots of Application of LIDAR Technology in Topographic Survey of TFACZ; Lastly check the accuracy of the LIDAR data using Trimble GPS RTK system.