Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 46893 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ On the role of space geodetic measurements for global changes monitoring On the role of space geodetic measurements for global changes monitoring Tatevian S Tatevian S Kluykov A Kluykov A Kuzin S Kuzin S Institute of Astronomy RAS, Moscow, Russia ru Institute of Astronomy RAS, Moscow, Russia ru Institute of Astronomy RAS, Moscow, Russia ru Institute of Astronomy RAS, Moscow, Russia ru Institute of Astronomy RAS, Moscow, Russia ru Institute of Astronomy RAS, Moscow, Russia ru 12 3 1 8 10 11 2021 https://rjes.ru/en/nauka/article/46893/view

One of the most important and unique task of space geodesy is a development and control of the global terrestrial reference coordinate frame ndash; ITRF, accurate and stable within millimeter level. Small movements of the ITRF origin geocenter, which conventionally coincides with the Earth's center of mass, provide important information about mass redistribution in the Earth system. An accuracy of the geocenter position estimation is strongly dependent on the geodetic network size and stations distribution over the Earth's surface. From this point of view Doppler Orbit determination and Radiopositioning Integrated on Satellites DORIS system has an advantage, as its ground network of beacons consists of about 70 sites, equally distributed over the Earth's surface. The IDC Analysis Center of the Institute of astronomy, RAS, performs DORIS data analysis since 1995. Estimated amplitudes of annual and semiannual variations of the geocenter positions are in the limits of 2ndash;10nbsp;mm for horizontal components and 8ndash;30nbsp;mm for vertical component. The first attempt to develop a mathematical model of the geocenter motion has been made with the use of Dynamic Regression Modelling approach for spectral analysis of the long set 16nbsp;years of geocenter coordinates, estimated by DORIS measurements at the Institute of Astronomy of the Russian Academy of Sciences INASAN. In the issue of these studies a possibility to predict the preliminary geocenter positions with the accuracy about 2ndash;4nbsp;mm seems feasible over time period up to 10 weeks by the use of mathematical models. Further improvement of the contemporary ITRF could be possible only with dense and equally distributed tracking networks equipped with different measurement techniques. A development of the precise fundamental geodetic network, based on the combined use of GNSS, SLR and VLBI measurements, is now carried out in Russia. Monitoring of secular movements velocities of the permanent GPS-stations, located in Russia, already provided an improvement of the reference coordinate frame for North Eurasia. Studies of the seismic belts of Eurasia and velocities of the crust movement, estimated with the use of GPS measurements, showed that only a northern part of the continent could be classified as an indivisible lithosphere plate. It could be named the North Eurasian Plate unlike the Eurasian Plate, which doesn't exist now as an indivisible tectonic block.

One of the most important and unique task of space geodesy is a development and control of the global terrestrial reference coordinate frame ndash; ITRF, accurate and stable within millimeter level. Small movements of the ITRF origin geocenter, which conventionally coincides with the Earth's center of mass, provide important information about mass redistribution in the Earth system. An accuracy of the geocenter position estimation is strongly dependent on the geodetic network size and stations distribution over the Earth's surface. From this point of view Doppler Orbit determination and Radiopositioning Integrated on Satellites DORIS system has an advantage, as its ground network of beacons consists of about 70 sites, equally distributed over the Earth's surface. The IDC Analysis Center of the Institute of astronomy, RAS, performs DORIS data analysis since 1995. Estimated amplitudes of annual and semiannual variations of the geocenter positions are in the limits of 2ndash;10nbsp;mm for horizontal components and 8ndash;30nbsp;mm for vertical component. The first attempt to develop a mathematical model of the geocenter motion has been made with the use of Dynamic Regression Modelling approach for spectral analysis of the long set 16nbsp;years of geocenter coordinates, estimated by DORIS measurements at the Institute of Astronomy of the Russian Academy of Sciences INASAN. In the issue of these studies a possibility to predict the preliminary geocenter positions with the accuracy about 2ndash;4nbsp;mm seems feasible over time period up to 10 weeks by the use of mathematical models. Further improvement of the contemporary ITRF could be possible only with dense and equally distributed tracking networks equipped with different measurement techniques. A development of the precise fundamental geodetic network, based on the combined use of GNSS, SLR and VLBI measurements, is now carried out in Russia. Monitoring of secular movements velocities of the permanent GPS-stations, located in Russia, already provided an improvement of the reference coordinate frame for North Eurasia. Studies of the seismic belts of Eurasia and velocities of the crust movement, estimated with the use of GPS measurements, showed that only a northern part of the continent could be classified as an indivisible lithosphere plate. It could be named the North Eurasian Plate unlike the Eurasian Plate, which doesn't exist now as an indivisible tectonic block.

 ITRF origin estimation space geodesy monitoring tectonic movements ITRF origin estimation space geodesy monitoring tectonic movements

Altamimi, Quality Assessment of the IDS Contribution to ITRF 2008, Adv. Space Res., v. 45, no. 12, 2010. Altamimi, Quality Assessment of the IDS Contribution to ITRF 2008, Adv. Space Res., v. 45, no. 12, 2010. Blewitt, Self-Consistency in Reference Frames, Geocenter Definition and Surface Loading of the Solid Earth, J. Geophys. Res., v. 108, no. B2, 2003., doi: 10.1029/2002JB002082 Blewitt, Self-Consistency in Reference Frames, Geocenter Definition and Surface Loading of the Solid Earth, J. Geophys. Res., v. 108, no. B2, 2003., doi: 10.1029/2002JB002082 Boucher, Synthesis of Submitted Geocenter Time Series, IERS Technical Note No. 25, 1999. Boucher, Synthesis of Submitted Geocenter Time Series, IERS Technical Note No. 25, 1999. Bouille, Geocenter Motion from the DORIS Space System and Laser Data to the LAGEOS Satellites. Comparison with surface loading data, Geophys. J. Int., no. 143, 2000. Bouille, Geocenter Motion from the DORIS Space System and Laser Data to the LAGEOS Satellites. Comparison with surface loading data, Geophys. J. Int., no. 143, 2000. Bruinsma, A Revised DTM Atmospheric Density Model: Modeling Strategy and Results, EGS XXV General Assembly, Session G7, Nice, France, 2000., 2000. Bruinsma, A Revised DTM Atmospheric Density Model: Modeling Strategy and Results, EGS XXV General Assembly, Session G7, Nice, France, 2000., 2000. Cretaux, Seasonal and Inter-Annual Geocenter Motion from SLR and DORIS Measurements: Comparison with Surface Loading Data, J. Geopys. Res., v. 107, no. B12, 2002., doi: 10.1029/2002JB001820 Cretaux, Seasonal and Inter-Annual Geocenter Motion from SLR and DORIS Measurements: Comparison with Surface Loading Data, J. Geopys. Res., v. 107, no. B12, 2002., doi: 10.1029/2002JB001820 Demianov, Integrated Geodynamical Network in Russia. Scientific objectives and Realization, Phys. Chem. Earth A, v. 25, no. 12, 2000. Demianov, Integrated Geodynamical Network in Russia. Scientific objectives and Realization, Phys. Chem. Earth A, v. 25, no. 12, 2000. Dick, International Earth Rotation Service IERS, IERS Annual Report, 2001, 2002. Dick, International Earth Rotation Service IERS, IERS Annual Report, 2001, 2002. Dong, Origin of the International Terrestrial Reference Frame, J. Geophys. Res., v. 108, no. B4, 2003. Dong, Origin of the International Terrestrial Reference Frame, J. Geophys. Res., v. 108, no. B4, 2003. Dow, The International GNSS Service in a Changing Landscape of Global Navigation Satellite System, J. Geod., v. 83, no. 3-4, 2008. Dow, The International GNSS Service in a Changing Landscape of Global Navigation Satellite System, J. Geod., v. 83, no. 3-4, 2008. Finkelstein, Radio Astronomy Observatories in Svetloe and Zelenchukskaya of VLBI Network QUASAR, Proceedings of the APSG Fourth Workshop APSG2001, May 2001, ShAO CAS, 2001, 2001. Finkelstein, Radio Astronomy Observatories in Svetloe and Zelenchukskaya of VLBI Network QUASAR, Proceedings of the APSG Fourth Workshop APSG2001, May 2001, ShAO CAS, 2001, 2001. Gatinsky, Block Structures and Kinematics of Eastern and Central Asia from GPS Data, Geotectonics, v. 39, no. 5, 2005. Gatinsky, Block Structures and Kinematics of Eastern and Central Asia from GPS Data, Geotectonics, v. 39, no. 5, 2005. Gobinddass, Improving DORIS Geocenter Time Series Using an Empirical Rescaling of Solar Radiation Pressure Models, Adv. Space Res., v. 44, no. 11, 2009a., doi: 10.1016/j.asr.2009.08.004 Gobinddass, Improving DORIS Geocenter Time Series Using an Empirical Rescaling of Solar Radiation Pressure Models, Adv. Space Res., v. 44, no. 11, 2009a., doi: 10.1016/j.asr.2009.08.004 Gobinddass, Systematic Biases in DORIS-derived Geocenter Time Series Related to Solar Radiation Pressure Mismodeling, J. Geod., v. 83, no. 9, 2009b. Gobinddass, Systematic Biases in DORIS-derived Geocenter Time Series Related to Solar Radiation Pressure Mismodeling, J. Geod., v. 83, no. 9, 2009b. Kogan, Current Global Kinematics from GPS with the plate-consistent reference frame, J. Geophys. Res., v. 113, no. B04416, 2008., doi: 10.1029/2007JB005353 Kogan, Current Global Kinematics from GPS with the plate-consistent reference frame, J. Geophys. Res., v. 113, no. B04416, 2008., doi: 10.1029/2007JB005353 Kuzin, DORIS data Analysis at the Institute of Astronomy, RAS, Proceedings of the ``DORIS DAYS'', 1-3 may, 2000, Toulouse, France., 2000. Kuzin, DORIS data Analysis at the Institute of Astronomy, RAS, Proceedings of the ``DORIS DAYS'', 1-3 may, 2000, Toulouse, France., 2000. Kuzin, On Computation of Weekly Doris Solutions for 1999-2001 Time Period, Proceedings of the IDS workshop, Biarritz, France, 13-14 June 2002., 2002. Kuzin, On Computation of Weekly Doris Solutions for 1999-2001 Time Period, Proceedings of the IDS workshop, Biarritz, France, 13-14 June 2002., 2002. Kuzin, Studies of the Geocenter Motion using 16-years DORIS Data, Adv. Space Res., no. 46, 2010. Kuzin, Studies of the Geocenter Motion using 16-years DORIS Data, Adv. Space Res., no. 46, 2010. Lavallee, Geocenter Motions from GPS: a Unified Observation Model, J. Geophys. Res., v. 111, no. B05405, 2006., doi: 10.1029/2005JB003784 Lavallee, Geocenter Motions from GPS: a Unified Observation Model, J. Geophys. Res., v. 111, no. B05405, 2006., doi: 10.1029/2005JB003784 Niell, Global Mapping Functions for the Atmosphere Delay at Radio Wavelengths, J. Geophys. Res., v. 101, no. B2, 1996. Niell, Global Mapping Functions for the Atmosphere Delay at Radio Wavelengths, J. Geophys. Res., v. 101, no. B2, 1996. Noll, The Crustal Dynamics Data Information System: A Resource to Support Scientific Analysis Using Space Geodesy, Adv. In Space Res., no. 45, 2010. Noll, The Crustal Dynamics Data Information System: A Resource to Support Scientific Analysis Using Space Geodesy, Adv. In Space Res., no. 45, 2010. Noll, On-line Resource Supporting the Data, Products and Information Infrastructure for the International DORIS Service, J. Geod., v. 80, no. 8-11, 2006. Noll, On-line Resource Supporting the Data, Products and Information Infrastructure for the International DORIS Service, J. Geod., v. 80, no. 8-11, 2006. Petit, IERS Conventions 2010, IERS Technical Note, No. 36, 2010. Petit, IERS Conventions 2010, IERS Technical Note, No. 36, 2010. Plag, Global Geodetic Observing System for Geohazards and Global Change, Geosciences, BRGM's, Journal for Sustainable Earth, no. 9, 2009. Plag, Global Geodetic Observing System for Geohazards and Global Change, Geosciences, BRGM's, Journal for Sustainable Earth, no. 9, 2009. Rummel, Mission Simulation and Semi-Analytical Gravity Field Analysis for GOCE SGG and SST - Observation of the System from Space, 2006. Rummel, Mission Simulation and Semi-Analytical Gravity Field Analysis for GOCE SGG and SST - Observation of the System from Space, 2006. Schl\"uter, The International VLBI Service for Geodesy and Astrometry IVS: Current Capalilities and Future Prospects, J. Geod., v. 81, no. 6-8, 2007. Schl\"uter, The International VLBI Service for Geodesy and Astrometry IVS: Current Capalilities and Future Prospects, J. Geod., v. 81, no. 6-8, 2007. Tapley, GGM02 - An improved Earth Gravity Field Model from GRACE, J. Geod., no. 79, 2005., doi: 10.1007/s00190-005-0480-z Tapley, GGM02 - An improved Earth Gravity Field Model from GRACE, J. Geod., no. 79, 2005., doi: 10.1007/s00190-005-0480-z Tatevian, Comparison of Geocenter Variations Derived From 10 years of GPS, DORIS and SLR Data, Proceedings of the APSG-2004 Symposium ``Space geodesy and its applications to the Earth sciences'', July, Singapore, 2004, 2004. Tatevian, Comparison of Geocenter Variations Derived From 10 years of GPS, DORIS and SLR Data, Proceedings of the APSG-2004 Symposium ``Space geodesy and its applications to the Earth sciences'', July, Singapore, 2004, 2004. Valeev, Regression Modeling in Observational Data Processing, 1991. Valeev, Regression Modeling in Observational Data Processing, 1991. Valeev, Studies of the geocenter motion by the analysis of the satellite systems GPS and DORIS measurements, Geodesy and Cartography Moscow, no. 11, 2011. Valeev, Studies of the geocenter motion by the analysis of the satellite systems GPS and DORIS measurements, Geodesy and Cartography Moscow, no. 11, 2011. Webb, An Introduction to GIPSY-OASIS II, JPL Internal Document D-11088, Jet Propulsion Laboratory, 1997. Webb, An Introduction to GIPSY-OASIS II, JPL Internal Document D-11088, Jet Propulsion Laboratory, 1997. Willis, Analysis of a Future Degradation in the DORIS Geodetic Results Related to Changes in the Satellite Constellation, Adv. Space Res., v. 39, no. 10, 2007. Willis, Analysis of a Future Degradation in the DORIS Geodetic Results Related to Changes in the Satellite Constellation, Adv. Space Res., v. 39, no. 10, 2007. Willis, DORIS, from Altimetry Missions Orbit Determination to Geodesy, C. R. Geosci., v. 338, no. 14-15, 2006. Willis, DORIS, from Altimetry Missions Orbit Determination to Geodesy, C. R. Geosci., v. 338, no. 14-15, 2006. Willis, Geodetic Applications of the DORIS System at the French Institut Geographique National, C. R. Geosci., v. 337, no. 7, 2005. Willis, Geodetic Applications of the DORIS System at the French Institut Geographique National, C. R. Geosci., v. 337, no. 7, 2005. Willis, The International DORIS Service IDS: Toward Maturity, 2010. Willis, The International DORIS Service IDS: Toward Maturity, 2010.