Advertisement

Combination of the Weekly Solutions Delivered by the SIRGAS Processing Centres for the SIRGAS-CON Reference Frame

  • L. SánchezEmail author
  • W. Seemüller
  • M. Seitz
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 136)

Abstract

The SIRGAS reference frame is given by more than 200 continuously operating stations (SIRGAS-CON network), which are classified in four sub-networks: a continental one (SIRGAS-CON-C) with about 100 stations homogeneously distributed over Latin America and the Caribbean, and three densification sub-networks (SIRGAS-CON-D) covering the northern part, the middle part, and the southern part of the SIRGAS region. Each sub-network is processed by one of the SIRGAS Processing Centres: DGFI (Germany) is responsible for the SIRGAS-CON-C network, IGAC (Colombia) for the northern densification sub-network, IBGE (Brazil) for the middle one, and CIMA (Argentina) for the southern one. These Processing Centres deliver loosely constrained weekly solutions, which are integrated in a unified solution by the SIRGAS Combination Centres operating at DGFI and IBGE. The DGFI (i.e. IGS RNAAC SIR) weekly combinations are delivered to the IGS Data Centres for the global polyhedron, and are made available for users as official SIRGAS weekly reference frame solution. The IBGE weekly combinations provide control and redundancy. This paper describes the combination strategy applied by DGFI, emphasizing the evaluation of the individual solutions and the quality control of the final weekly combinations. The reliability of the resulting coordinates is estimated by comparing them with those produced by IBGE and the weekly combinations of the IGS global network.

Keywords

Individual Solution Combine Solution Earth Orientation Parameter Position Time Series IGS05 Station 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Brunini C, Sánchez L (eds) (2008) Reporte SIRGAS 2007–2008. Boletín Informativo No. 13. pp. 40 Available at http://www.sirgas.org
  2. Brunini C, Sánchez H, Drewes S, Costa V, Mackern W, Martínez W, Seemüller A, da Silva (2011) Improved analysis strategy and accessibility of the SIRGAS Reference Frame. In: Geodesy for Planet Earth, Buenos Aires Argentina. August 31 to September 4, 2009. IAG Symposia, this volumeGoogle Scholar
  3. Costa SMA, da Silva AL, Vaz JA (2009) Report of IBGE Combination Centre. Period of SIRGAS-CON solutions: from week 1495 to 1531. Presented at the SIRGAS 2009 General Meeting. Buenos Aires, Argentina. September. Available at http://www.sirgas.org
  4. Dach R, Hugentobler U, Fridez P, Meindl M, (eds) (2007). Bernese GPS Software Version 5.0 – Documentation. Astronomical Institute, University of Berne, January, 640Google Scholar
  5. Sánchez L, Seemüller W, Krügel M (2008) Comparison and combination of the weekly solutions delivered by the SIRGAS Experimental Processing Centres. DGFI Report No. 80. DGFI, Munich. Available at http://www.sirgas.org
  6. Seemüller W, Drewes H (2008) Annual Report 2003–2004 of IGS RNAAC SIR. In: IGS 2001–02 Technical Reports, IGS Central Bureau, (eds), Pasadena, CA: Jet Propulsion Laboratory. Available at http://igscb.jpl.nasa.gov/igscb/resource/pubs/2003-2004_IGS_Annual_Report.pdf
  7. Seemüller W (2009) The Position and Velocity Solution DGF06P01 for SIRGAS In: Drewes H (ed) Geodetic Reference Frames, IAG Symposia; Springer, Heidelberg vol 134:167–172Google Scholar
  8. Seemüller W, Seitz M, Sánchez L, Drewes H (2009) The position and velocity solution SIR09P01 of the IGS Regional Network Associate Analysis Centre for SIRGAS (IGS RNAAC SIR). DGFI Report No. 85. DGFI, Munich. Available at http://www.sirgas.org

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Deutsches Geodätisches Forschungsinstitut (DGFI)MunichGermany

Personalised recommendations