Dynamic Planet pp 595-602 | Cite as

Advances in terrestrial reference frame computations

  • Detlef Angermann
  • Hermann Drewes
  • Manuela Krügel
  • Barbara Meisel
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 130)

Abstract

In its function as an ITRS Combination Center, DGFI has developed refined methods for the terrestrial reference frame computation. The advanced approach is based on the combination of epoch normal equations (weekly/daily data sets) containing Station positions and Earth orientation parameters (EOP) obtained from different geodetic space techniques such as VLBI, SLR, GPS and DORIS. This refined approach allows to account for nonlinear effects (e.g., periodic signals and discontinuities) in Station positions and to ensure consistency between TRF and EOP. The ITRF2004 submissions were used as input for a refined realization of the terrestrial reference frame. This paper presents the combination methodology and the current Status of the ITRF2004 computations at DGFI.

Key words

ITRF computation EOP VLBI SLR GPS DORIS 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Detlef Angermann
    • 1
  • Hermann Drewes
    • 1
  • Manuela Krügel
    • 1
  • Barbara Meisel
    • 1
  1. 1.Deutsches Geodätisches Forschungsinstitut (DGFI)MunichGermany

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