Original scientific paper

Optimum Resolution and Size of DTM during Modelling Topographic Effect

Jelena Gučević ; Faculty of Civil Engineering, University of Belgrade, Belgrade, Serbia
Vukan Ogrizović orcid.org/0000-0002-1599-8323 ; Faculty of Civil Engineering, University of Belgrade, Belgrade, Serbia
Siniša Delčev orcid.org/0000-0002-4651-1493 ; Faculty of Civil Engineering, University of Belgrade, Belgrade, Serbia
Violeta Vasilić ; Faculty of Civil Engineering, University of Belgrade, Belgrade, Serbia

Abstract

Modelling the effects of topographic masses which bear local changes of the gravity field is exceptionally important in the contemporary scientific and practical implementations. The topography effect in this paper is analysed by the digital terrain model of the Republic of Serbia, developed on the basis of the topographic map at the scale of 1:25 000 and by the hypothesis on the equal density of surface layers of the Earth crust. The shortwave characteristic as an impact of the local topography was analysed in parts with different topography for the region of Belgrade and Paraćin. The gravity field parameters were determined in points of the reference GPS network of the Republic of Serbia and points of the Paraćin basis, with the purpose of comparing gravimetric vertical deflections with astro-geodetic vertical deflections.

Keywords

topographic effect; terrain correction; gravity reduction; gravity anomaly; vertical deflection

Hrčak ID:

62896

URI

https://hrcak.srce.hr/62896

Publication date:

14.9.2010.

Article data in other languages: croatian

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