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Accuracy Assessment of the ITRS 2008 Realization of DGFI: DTRF2008

  • Manuela SeitzEmail author
  • Detlef Angermann
  • Hermann Drewes
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 138)

Abstract

The DTRF2008 is a realization of the ITRS computed by the ITRS Combination Centre at DGFI. It is based on the same input data as the ITRF2008. In order to assess the internal and external accuracy of DTRF2008 several validation procedures are applied which are based on comparisons with technique-only multi-year solutions (for assessing the internal accuracy) and comparisons with ITRF2008 and ITRF2005 (for assessing the external accuracy). The analysis is done separately for the four space-geodetic techniques GPS, VLBI, SLR and DORIS. The internal accuracy for station positions is between 0.6 and 3.3mm and the external accuracy between 7 and 10mm depending on the space technique. For the velocities the internal accuracy is between 0.25 and 1.0mm/a and the external between 0.2 and 2.0mm/a.

Keywords

International terrestrial reference frame ITRF2008 DTRF2008 Combination GPS SLR VLBI DORIS Datum parameters 

References

  1. Altamimi Z, Collilieux X, Legrand J, Garayt B, Boucher C (2007) ITRF2005: a new release of the international terrestrial reference frame based on time series of station positions and Earth orientation parameters. J Geophys Res 112(B09401)Google Scholar
  2. Altamimi Z, Collilieux X, Métivier L (2011) ITRF2008: an improved solution of the international terrestrial reference frame. J Geodesy 85(8):457–473CrossRefGoogle Scholar
  3. Angermann D, Drewes H, Gerstl M, Krügel M, Meisel B (2009) DGFI combination methodology for ITRF2005 computation. In: Drewes H (ed) Geodetic reference frames, IAG symposia, vol 134. Springer-Verlag, Berlin, pp 11–16CrossRefGoogle Scholar
  4. Ferland R (2006) Proposed IGS05 realization, IGS Mail 5447Google Scholar
  5. Gerstl M, Kelm R, Müller H, Ehrnsperger W (2000) DOGSCS Kombination und Lösung großer Gleichungs-systeme. Manual VIII für DOGS version 4.05. Internal report. DGFI, MunichGoogle Scholar
  6. Gobinddass M, Willis P, de Viron O, Sibthorpe A, Zelensky N, Ries J, Ferland R, Bar-Sever Y, Diament M, Lemoine F (2009) Improving DORIS geocentre time series using an empirical rescaling of solar radiation pressure models. Adv Space Res 44:1279–1287CrossRefGoogle Scholar
  7. Gobinddass M, Willis P, Menvielle M, Diament M (2010) Refining DORIS atmospheric drag estimation in preparation of ITRF2008. Adv Space Res 46:1566–1577CrossRefGoogle Scholar
  8. IERS (2004) IERS conventions 2003. In: Mc Carthy D, Petit G (eds). IERS TN 32, Frankfurt/MainGoogle Scholar
  9. Nothnagel A (2009) Short note: conventions on thermal expansion modelling of radio telescopes for geodetic and astrometric VLBI. J Geodesy 83(9):787–792CrossRefGoogle Scholar
  10. Schmid R, Steigenberger P, Gendt G, Ge M, Rothacher M (2007) Generation of a consistent absolute phase centre correction model for GPS receiver and satellite antennas. J Geodesy 81(12):781–798CrossRefGoogle Scholar
  11. Seitz M, Angermann D, Bloßfeld M, Drewes H, Gerstl M (2012) The 2008 DGFI realization of the ITRS: DTRF2008. J Geod DOI: 10.1007/s00190-012-0567-2

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Manuela Seitz
    • 1
    Email author
  • Detlef Angermann
    • 1
  • Hermann Drewes
    • 1
  1. 1.DGFIMunichGermany

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