Abstract
In this study, we investigate the influence of different analysis setup options for the processing of VLBI measurement data from 2002 until 2010 to derive the terrestrial reference frame (TRF). For estimating the consequent changes of the TRF, the simulation tool of the Vienna VLBI Software (VieVS) is used by applying different a priori models. We show that neglecting atmosphere loading causes a systematic annual scale variation of±0.3 mm, and that the application of the cubic model recommended in the most recent IERS Conventions for the mean pole introduces a scale change of −0.6mm over 8.5years. The effects of antenna thermal deformation on the TRF are±0.5 to 1mm/year in translation and±2 mm/year in scale. No systematic effects are found for the different troposphere mapping functions tested. Besides systematic, annual, and episodic impacts on the coordinates, we focus on possible changes in the scale of the reference frames.
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Acknowledgements
The authors would like to thank the editor and the two reviewers for their useful advice and help to improve our paper. This contribution to the REFAG 2010 was enabled by the receipt of the IAG Travel Award for Lucia Plank. Hana Spicakova is recipient of financial support during her PhD study at TU Vienna by Mondi Austria Privatstiftung and Andrea Pany receives a DOC-fForte fellowship of the Austrian Academy of Sciences at the Institute of Geodesy and Geophysics, Vienna University of Technology. Tobias Nilsson is grateful to the Deutsche Forschungsgemeinschaft (DFG) (project SCHUH 1103/3-2).
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Plank, L., Spicakova, H., Böhm, J., Nilsson, T., Pany, A., Schuh, H. (2013). Systematic Errors of a VLBI Determined TRF Investigated by Simulations. In: Altamimi, Z., Collilieux, X. (eds) Reference Frames for Applications in Geosciences. International Association of Geodesy Symposia, vol 138. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32998-2_29
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DOI: https://doi.org/10.1007/978-3-642-32998-2_29
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