HR: 09:15h
AN: G41A-06 INVITED    [Abstracts]
TI: GPS-Only Terrestrial Reference Frame Based on a Global Reprocessing
AU: * Dietrich, R
EM: dietrich@IPG.geo.tu-dresden.de
AF: TU Dresden, Institut fuer Planetare Geodaesie, Dresden, 01062, Germany
AU: Rothacher, M
EM: rothacher@gfz-potsdam.de
AF: GFZ Potsdam, Telegrafenberg A17, Potsdam, 14473, Germany
AU: Ruelke, A
EM: ruelke@IPG.geo.tu-dresden.de
AF: TU Dresden, Institut fuer Planetare Geodaesie, Dresden, 01062, Germany
AU: Fritsche, M
EM: fritsche@IPG.geo.tu-dresden.de
AF: TU Dresden, Institut fuer Planetare Geodaesie, Dresden, 01062, Germany
AU: Steigenberger, P
EM: steigenberger@gfz-potsdam.de
AF: GFZ Potsdam, Telegrafenberg A17, Potsdam, 14473, Germany
AB: The realization of the International Terrestrial Reference System (ITRS) with highest accuracy and stability is fundamental and crucial for applications in geodesy, geodynamics, geophysics and global change. In a joint effort TU Dresden and TU Munich/GFZ Potsdam reprocessed a global GPS network of more than 200 stations. As a contribution to an ITRS realization daily normal equations from 1994 to 2005 were rigorously combined in order to determine a global GPS-only reference frame (PDR05/Potsdam-Dresden-Reprocessing Reference Frame). We present a realization of the global terrestrial reference system which follows the center of mass approach in consideration of the load-induced deformation of the Earth's crust due to the redistribution of surface masses. The stability of our reference frame will be evaluated based on the obtained long-term trends of station coordinates, the load-induced deformation estimates and the homogeneous time series of station positions. We will compare our solution with other recent terrestrial reference system realizations and give some conclusions for future realizations of the ITRS.
DE: 1229 Reference systems
DE: 1240 Satellite geodesy: results (6929, 7215, 7230, 7240)
SC: Geodesy [G]
MN: 2007 Fall Meeting