GGOS-D Consistent and Combined Time Series of Geodetic/Geophyical Parameters
The generation of the GGOS-D global terrestrial reference frame is based on VLBI, SLR, and GPS observations. The respective observation blocks, analysed as individual units, depend on the technique and cover either full weeks, full days (GPS and SLR) or observing sessions of 24 h duration (VLBI). From these observation units, time series of parameters have been inferred and studies of the quality of the results have been carried out for the identification of deficits in the analyses. In this paper, we describe examples of time series of site coordinates, Earth orientation, and atmosphere parameters as well as peculiarities in the behaviour of these parameters.
KeywordsSpace geodesy GGOS-D Time series
We are grateful for the use of observation data from IGS (Dow et al., 2005), ILRS (Pearlman et al., 2002), and IVS (Schlüter et al., 2002). This is publication no. GEOTECH-1258 of the programme GEOTECHNOLOGIEN of the German Ministry of Education and Research (BMBF). The work has been carried out in part with support of grants 03F0425A, 03F0425C, 03F0425D of BMBF.
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