The Design And Implement Of The Digital & Aerial Mapping Project Of Lanzhou City

This dissertation discuss systematically and reasonably methods and procedure of drawing aerial photogrammetry maps, in vary area, such as Lanzhou aerial survey mapping in 1:500 scale, Lanzhou DEM establishment in 1:2000 scale and design and practice of DOM in 1:2000 scale. In the dissertation, the dissertation uses aerial triangulation block adjustment of 1:500 scales other than field sticking-point, proposes aerial photo district and aerial photogrammetry field setting control point plan for a big scale aerial photogrammetry. Using these three plans to have the obvious economic efficiency enhances the production efficiency enormously. Based on the Lanzhou city unique terrain characteristic, the dissertation also proposes the data acquirement about digital elevation model (DEM) and the digital orthogonal model (DOM), DEM modeling method.The dissertation elaborates various links operating methods and the work flows in five domains such as foundation control, analytical aero triangulation ,aerial photogrammetry mapping, DEM, DOM and so on, The results of this project has been checked out by theologize and satisfied precision required, therefore the scientific research might be generalized. This dissertation discusses and makes an analysis of a method of aerial photogrammetry mapping, in order to promote production efficiency, alleviate the work pressure and make it full use in the future.