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Systematic errors of a VLBI determined TRF investigated by simulations

Citation

Plank, L and Spicakova, H and Bohm, J and Nilsson, T and Pany, A and Schuh, H, Systematic errors of a VLBI determined TRF investigated by simulations, International Association of Geodesy Symposia Volume 138, 4-8 October 2010, Chania, Crete, pp. 197-202. ISBN 978-3-642-32997-5 (2013) [Refereed Conference Paper]

DOI: doi:10.1007/978-3-642-32998-2_29

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.

Item Details

Item Type:Refereed Conference Paper
Keywords:terrestrial reference frame, VLBI analysis, Vienna VLBI software, VieVS
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Astronomical and Space Sciences not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Plank, L (Dr Lucia McCallum)
ID Code:94878
Year Published:2013
Deposited By:Mathematics and Physics
Deposited On:2014-09-18
Last Modified:2017-11-06
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