Difference between geoid and quasigeoid at the territory of Serbia

Abstract

In this paper work differences between geoid and quasigeoid at the territory of Serbia that were modeled in two ways are shown. The first way meant usage of orthometric and normal high precision leveling heights and the second usage of detailed gravimetric survey of Serbia. In this manner obtained two sets of differences were analyzed by direct comparison and in accordance with topographic masses distribution at the territory of Serbia. In the northern flat part of Serbia where the heights of topographic masses hardly exceed the value of 90 m, both ways give approximately the same values but the very values of differences in both sets are at the level of few millimeters. In the southern part where the masses reach the heights up to 2500 m the geoid and quasigeoid differences reach the values up to 30 cm but the results significantly differ depending on the ways the differences are determined.