ausblenden:
Schlagwörter:
-
Zusammenfassung:
At the beginning of the year 2023, the DTRF2020, the ITRS 2020 realization of DGFI-TUM was completed. In this presentation, we closely look at the results of the analysis of the DTRF2020 Earth Orientation Parameter (EOP) series. First, we examine the impact of accounting for non-tidal loading on the EOP time series of each observation technique. In particular, changes in the annual and semi-annual signals of the EOP series can be expected, as both frequencies are dominant in the non-tidal loading displacements of the observing stations. We analyze the combined DTRF2020 EOP time series in terms of their temporal changes and their sensitivity to the contributing techniques, and we compare them to reference series such as IERS Bulletin A, IERS 20 C04, and SPACE 2018 (or a later version). Furthermore, we investigate the achieved consistency with the ITRF2020 and JTRF2020 in terms of the EOP, since these solutions have been computed from the same input data. A comparison with the DTRF2014 EOP reflects the consistency of successive DTRF solutions.
