Konsistente dynamische Referenzrahmen und terrestrische Datumsparameter
Zusammenfassung der Projektergebnisse
Reference frames are the basis for the quantification of processes in the Earth's system and thus essential for referencing monitored global change parameters such as sea level change. The future requirements on the reference frames in terms of accuracy, long-term stability and reliability will necessitate an entirely physically based datum definition and realization. SLR is the only space geodetic technique which contributes to the realization of all datum parameters of the TRF. The exploitation of the full current potential of the SLR technique leads to an improvement of the TRF solution. In particular, the accuracy of global parameters, i.e., the datum parameters, is improved significantly compared to a standard SLR solution based on LAGEOS 1/2 and ETALON ½ only. Therefore, for the first time 11 satellites are included in the SLR solution. In detail, it can be stated that the 11-satellite solution performs best in case of the determination of x- and y-origin, the station coordinate residuals, the x/y-pole and selected Stokes coefficients. In case of the z-origin and the TRF scale, the 11-satellite solution was affected by Ajisai. New center-of-mass correction values for this satellite are available now, which allow to overcome this problem. The 5-satellite solution with LARES also performs well (stable origin and TRF scale, lower scatter for LOD, but increased WRMS and wmean for x/y-pole coordinates) which supports the plan of the ILRS to include this satellite in the standard product determination process in future. Finally, based on this investigation, one can state the 11-satellite solution provides a very good basis to consistently estimated TRF, EOP and GFC with very high accuracy which is one of the major goals of the Global Geodetic Observing System (GGOS).
Projektbezogene Publikationen (Auswahl)
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The key role of Satellite Laser Ranging towards the integrated estimation of geometry, rotation and gravitational field of the Earth. Dissertation, Technische Universität München, Deutsche Geodätische Kommission, Reihe C, Heft 745, Verlag der Bayerischen Akademie der Wissenschaften, ISBN: 978-3-7696-5157-7, München, 2015
Bloßfeld M.
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Interaction between subdaily Earth rotation parameters and GPS orbits. In: Rizos C., Willis P. (Eds.) IAG 150 Years, IAG Symposia, 143, 159-167, 2016
Panafidina N., Hugentobler U., Seitz M.
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Future global SLR network evolution and its impact on the terrestrial reference frame. Journal of Geodesy, 2017
Kehm A., Bloßfeld M., Pavlis E. C., Seitz F.
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Improvements in precise orbits of altimetry satellites and their impact on mean sea level monitoring. IEEE Transactions on Geoscience and Remote Sensing, 55(6), 3382-3395, 2017
Rudenko S., Neumayer K.-H., Dettmering D., Esselborn S., Schöne T., Raimondo J.-C.
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Influence of subdaily polar motion model on nutation offsets estimated by very long baseline interferometry. Journal of Geodesy, 2017
Panafidina N., Hugentobler U., Seitz M., Krásná H.
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Consistent estimation of geodetic parameters from SLR satellite constellation measurements. Journal of Geodesy, 92(9), 1003–1021, 2018
Bloßfeld M., Rudenko S., Kehm A., Panafidina N., Müller H., Angermann D., Hugentobler U., Seitz M.
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Evaluation of DTRF2014, ITRF2014 and JTRF2014 by Precise Orbit Determination of SLR Satellites. IEEE Transactions on Geoscience and Remote Sensing, 3148 - 3158, 2018
Rudenko S., Bloßfeld M., Müller H., Dettmering D., Angermann D., Seitz M.
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Influence of subdaily model for polar motion on the estimated GPS satellite orbits. Journal of Geodesy, 2018
Panafidina N., Hugentobler U., Seitz M.
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Mechanism of error propagation from the subdaily Universal Time model into the celestial pole offsets estimated by VLBI. Advances in Space Research, 2018
Panafidina N., Hugentobler U., Krásná H., Schmid R.,Seitz M.
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Towards thermospheric density estimation from SLR observations of LEO satellites - A case study with ANDE-Pollux satellite. Journal of Geodesy, 2018
Panzetta F., Bloßfeld M., Erdogan E., Rudenko S., Schmidt M., Müller H.
