Problem of determining a Geoid
2018
Pisetskaya, O., Belarusian State Agricultural Academy, Gorki, Mogilev reg. (Belarus) | Yarmolenko, A., Novgorod State Univ. named after Yaroslav the Wise, Veliky Novgorod (Russian Federation);Belarusian State Agricultural Academy, Gorki, Mogilev reg. (Belarus)
The issue of the study of the problem of determining the geoid and quasi-geoid models is considered. Development of methods for constructing an exact geoid model using different dimensions. Analysis of the calculation of normal heights using satellite measurements, construction of geoid and quasi-geoid models by different methods is performed. Based on the results of the analytical review of existing methods for determining the geoid, it was proposed to use various data (geodetic heights, mixed gravity anomalies, anomalous potential) to construct this model, which allows building a model of a geoid with millimetre accuracy. The possibility of using the collocation method is considered. The task is to develop a methodology for constructing a geoid model using a network of low density gravity points and using pure and mixed gravity anomalies, which allows us to solve the problem of finding potential by solving the Laplace equation or using wavelets.
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