The influence to source of data for accuracy on digital terrain models (DTM)

Abstract

The overview of the contemporary data acquisition methods for Digital Terrain Models (DTM), as well as the accuracy of data provided by these methods, are given in this article. The procedure of the accuracy estimation for DTM which is produced by digitizing of topographic maps and test points obtained by GPS technology and aerophotogrammetric terrain surveying, is presented.

Keywords

• DTM accuracy
• data acquisition methods
• measuring accuracy