By
Rahul
Department Of Civil Engineering, AWH Engineering College, Calicut-8,Kerala
ABSTRACT
This seminar paper on LiDAR mapping provides an introduction to a maturing technology used to acquire land based Digital elevation Models (DEM), and an existing mature technology used to acquire marine (undersea) DEMs. This seminar also goes through the use of LIDAR in space programs. Common to both the land-based and marine based systems by the use of lasers, integrated into what are known as Light Detection And Ranging systems, or LiDAR. The seminar begins with an introduction to LiDAR, and follows-through with how the systems are used, a description of land and marine variants, and statements as to what accuracy is attainable. Data products driven by applications are outlined, and the ability of these products to be integrated into a GIS is addressed. In turn and integral to the theme of the paper, evidence is presented to support applications developments that will ultimately benefit the public at large. Where valid, comparisons of LiDAR to other mapping technologies are presented to give the reader an understanding of current traditional practices. In many cases the combination of Li-DAR with other technology creates a result that is unachievable with a single methodology. Finally, conclusions are presented for discussion purposes that draw on the experiences of LiDAR.
INTRODUCTION
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