Abstract
This paper concerns an analysis of the accuracy of the estimated parameters Ω (Φ, Λ, ω) which define the tectonic plate motions. The study is based on the velocities of station positions in the IERS (International Earth Rotation and Reference Systems Service) which has published new realization of the International Terrestrial Reference System—ITRF2008 for Doppler Orbitography by Radiopositioning Integrated on Satellite DORIS technique. Eurasian, African, Australian, North American, Australian, Pacific, Antarctic and South American plates were used in the analysis. The influence of the number and localization of stations on the plate surface on the estimation accuracy of the tectonic plate motion parameters were discussed. The results were compared with the APKIM 2005 IGN model and our earlier estimation for the SLR technique. In general, a remarkable concurrent agreement between the present and the APKIM 2005 solutions was found.
Highlights
This paper is the second part of the cycle concerning an analysis of the parameters of tectonic plate estimation on the base of four geodetic satellite techniques, VLBI, SLR, GPS and DORIS
Our idea of this paper is to show an influence of the station localization and quantity in each analyzed plate on the estimation accuracy of the plate motion parameters for DORIS technique and comparison with the other techniques
Our computations were performed on the basis of an improved solution of the International Terrestrial Reference Frame ITRF2008, adjusted and described in detail by (Altamimi et al 2011)
Summary
This paper is the second part of the cycle concerning an analysis of the parameters of tectonic plate estimation on the base of four geodetic satellite techniques, VLBI, SLR, GPS and DORIS. The observation equations used in method of the least squares adjustment allow to estimate the plate motion parameters from the shifts of selected station positions and velocities given in (Drewes 1982).
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