specifications typically spell out accuracy requirements for both the
horizontal and vertical components in LiDAR collection.
But while a thorough assessment and reporting of the vertical accuracy of the
elevation surface is almost always completed for LiDAR projects, a formal
evaluation of the horizontal accuracy is less often required.
I gave a brief review of the results from the first meeting held last year on this effort. This month, I will report on the second National LiDAR Strategy Meeting held May 21-22 at the headquarters of the U.S. Geological Survey (USGS) in Reston, Va.
Not too long ago, a professional land surveyor whom I respect posed a very interesting question centering on the relationship between LiDAR and traditional photogrammetry: will LiDAR ever eliminate the need for aerial photography? The question was prompted from a debate in his surveying/engineering firm regarding the future of photogrammetry.