Integrated geodynamical network in Russia Original Research Article

All available observations regarding the internal structure of the Earth (gravity, magnetic, rotational and seismic) and precise space geodetic measurements should be gathered in order to derive a coherent Earth model, able to fit all types of data. Determination of a reference geodetic frame and a unique system of normal heights, meeting requests of geodynamic studies, demands an accomplishment of a complex of different types of geodetic measurements (space and terrestrial), as each of the techniques separately unable to give a singular interpretation. A problem of precise determination of the quasigeoid heights can be solved by joined analysis of GPS/GLONASS measurements and gravimetric data, if precise levelling data for the IGS sites are known. In this case a unique reference system for normal heights may be established without any information on the initial national or continental points. A real situation with the existing Russian stations for geodynamical monitoring is considered, results of experimental data analysis and a programme of upgrading of the integrated space geodetic network is discussed.