HR: 1330h
AN: G52C-0052    [PDF]
TI: Analysis of Site Position Time Series Derived From Space Geodetic Solutions
AU: Angermann, D
EM: angerman@dgfi.badw.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AU: * Meisel, B
EM: meisel@dgfi.badw.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AU: Kruegel, M
EM: kruegel@dgfi.badw.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AU: Tesmer, V
EM: tesmer@dgfi.badw.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AU: Miller, R
EM: miller-bayern@freenet.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AU: Drewes, H
EM: drewes@dgfi.badw.de
AF: Deutsches Geodaetisches Forschungsinstitut, Marstallplatz 8, Muenchen, 80539 Germany
AB: This presentation deals with the analysis of station coordinate time series obtained from VLBI, SLR, GPS and DORIS solutions. We also present time series for the origin and scale derived from these solutions and discuss their contribution to the realization of the terrestrial reference frame. For these investigations we used SLR and VLBI solutions computed at DGFI with the software systems DOGS (SLR) and OCCAM (VLBI). The GPS and DORIS time series were obtained from weekly station coordinates solutions provided by the IGS, and from the joint DORIS analysis center (IGN-JPL). We analysed the time series with respect to various aspects, such as non-linear motions, periodic signals and systematic differences (biases). A major focus is on a comparison of the results at co-location sites in order to identify technique- and/or solution related problems. This may also help to separate and quantify possible effects, and to understand the origin of still existing discrepancies. Technique-related systematic effects (biases) should be reduced to the highest possible extent, before using the space geodetic solutions for a geophysical interpretation of seasonal signals in site position time series.
DE: 1229 Reference systems
DE: 1247 Terrestrial reference systems
SC: Geodesy [G]
MN: 2003 Fall Meeting