Summary:

Continuous development of geoinformatic technics increases the demand for up-to-date and precise data describing the terrain configuration. Application of the digital photogrammetry enables connection and analysis of data obtained by different methods. The paper presents possibility of integration of data obtained from airborne laser scanning, and from aerial photos made by DMC digital camera for generating DTM for Chańcza water reservoir area . On investigated area five representative test areas were determined, and for them an experiment connected with height analysis and integration of photogrammetric and lidar data was performed. Test areas included : agricultural areas (arable fields) - flat area, built-up area with roads network, terrain of diverse vertical configuration, affore-sted area, and river valley.
Integration of lidar and photogrammetric data requires input to the project on photogrammmetric digital station DELTA, text files containing DTM in GRID structure generated in TerraScan and analysis the accuracy of these two methods integration. Analysis was performed for mentioned above test areas taking into account determined during investigations lengths of triangle sides (2 m, 15 m, 45 m, 70 m) during GRID generation by the method of triangulation.