Titlebook: Geodetic Reference Frames; IAG Symposium Munich Hermann Drewes Book 2009 Springer-Verlag Berlin Heidelberg 2009 atmosphere.geodesy.geophysi

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Inverse Model Approach for vertical Load Deformations in Consideration of Crustal Inhomogeneitiesh identical parameters are determined. Pressure fields of atmosphere, continentalhydrosphere and oceans are considered as forcing. In order to validate the numerical results, model time series from both the traditional and the site-dependent approach are compared with GPS observations. Explicit impr

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Station Coordinates and Low Degree Harmonics with Daily Resolution from a GPS/CHAMP Integrated Solut Earth Orientation Parameters. The parameter time series are characterized concerning accuracy and reliability. Comparisons between both methods are presented as well as comparisons with external series.

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Vienna VLBI Simulationsions. Random walk processes with power spectral densities of 0.7 and 0.1 psec./sec are used for the simulation of zenith wet delays. The clocks are simulated with Allan Standard Deviations of 1·10.@50 min and 2·10.@15 min and three levels of white noise, 4 psec, 8 psec and, 16 psec are added to the

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Towards an Improved Assessment of the Quality of Terrestrial Reference Framesr the variance-covariance matrices of the intra-technique combined solutions are used for the weighting of the inter-technique combinations (and thus for the final product ‘reference frame’) a dedicated study is urgently required..The scope of this paper is twofold. On the one hand there are the abo

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The International Terrestrial Reference Frame (ITRF2005)LBI) of station positions and daily Earth Orientation Parameters (EOPs). This short paper briefly summarizes the contribution to the ITRF of the international technique services, the ITRF history and ITRF2005 main results. It also provides the reader a selected list of a certain number of publicatio

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Effects of Different Antenna Phase Center Models on GPS-Derived Reference Frames4) IGS05 including azimuth-dependent satellite antenna phase center variations (PCVs). Station coordinates and velocities have been estimated simultaneously with daily pole coordinates. Consistent time series of station coordinates have been generated using the corresponding reference frames for dat

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VLBI-GPS Eccentricity Vectors at Medicina’s Observatory , GPS Surveys: Reproducibility, Reliability relying on GPS measurements: it may efficiently be applied to VLBI-GPS eccentricities as well as at all co-location sites where ITRF tracking points can be surveyed with GPS technique (GPS-based local ties). In principle such an approach offers advantages with respect to that terrestrial, since it i

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Combination of Earth Orientation Parameters and Terrestrial Frame at the Observation Levelameters (EOP) is now currently applied on a routine basis in a coordinated project of the Groupe de Recherches de Géodésie Spatiale (GRGS). To date, various techniques allow the determination of all or a part of the Earth Orientation Parameters: Laser Ranging to the Moon (LLR) and to dedicated artif