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EN
The source of information about the land surface can be not only the map or the profiles, that give the graphic reflex of the land, but also the digital terrain models (DTM), which present the form of the land surface in the digital way. In the paper the possibilities of using DTM at the stage of projection, building and exploitation the water reservoirs arę proposed. The process of projection a water reserwir and its further exploitation, regarding using DTM, allows for the considerable automatization of the works and an essential improvement the accuracy of the results of counting.
2
Content available remote Dokładność numerycznego modelu terenu w aspekcie badań eksperymentalnych
EN
In the paper review of the methods of numerical approximation of the land surface are presented.The inyestigations prove that the methods of approximation which involve correlation between the terrain points having essential significance. Are presented also problem of accuracy of approximation of the land sudace based on DTM end method of estimation of accuracy. It follows from the investigations that the proposed method of estimation of the accuracy of approximation of the land surface, based on the grid of points, is simple and qick. The use of DTM methods allows fast incorporation of the data into the spatial information systems (LIS-GIS) and their wide application for the spatial investigations and engineering.
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