Yaman, AydanYılmaz, Hacı MuratBilgilioğlu, Süleyman Sefa2025-08-272025-08-2720192148-9173https://doi.org/10.30897/ijegeo.551722https://hdl.handle.net/20.500.12451/13914Photogrammetry is a map production technique or science applied by measurements made from terrestrial images with terrestrialcameras or more commonly used images taken with airborne cameras. With the development of technology, digital photogrammetryhas been widely adopted in almost all areas of mapping. Especially digital orthophotos and digital elevation models, which arephotogrammetric products, are being intensively utilized by the private sector due to their easy interpretability. Digitalphotogrammetry is also a good method to automatically collect digital elevation models. Digital elevation model production is animportant process in photogrammetry. A digital elevation model is an important product by itself as well as plays an important role increating products such as orthophoto. The geometrical accuracy of digital elevation model used in geomatics applications is of evengreater importance. In this study, three different digital elevation models were produced using digital aerial photographs of 7 cm, 15cm and 25 cm ground sample distance taken in 2011 of Aksaray University campus area. Then, by using the heights measured byGPS and read the same heights from the digital elevation model, root mean square errors of ground control points, check points andtie points were calculated and compared with recommended standards. When the results are examined, it is seen that the values wereclose to and below the recommended values. Therefore, it can be seen that the digital elevation models produced with theaerial photographs taken at 7, 15 and 25 cm ground sample distances can be used for studies that do not require.eninfo:eu-repo/semantics/openAccessAccuracyGround sample distanceRMSEDigital Elevation ModelArticle6113113410.30897/ijegeo.551722