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Volume 52 Supplement 11

Special Issue: Application of GPS and other space geodetic techniques to Earth Sciences (2)

The systematic analysis of the transformation between the German geodetic reference system (DHDN, DHHN) and the ETRF system (DREF91)

Earth, Planets and Space volume 52, pages 947–952 (2000)Cite this article

Abstract

The 69 colocated sites in the area of the West Germany are used to estimate the transformation parameters with the seven parameter similarity transformation model. According to the solutions of transformation parameters and corresponding residuals between DHDN and ETRF, detail analyses for global and regional transformation are performed, which show that the global accuracy of the transformation between DHDN and ETRF is ±5 m with WRMS (weighted root mean square) of ±0.64 m and regional transformations have much better fitting. Through the comparisons of estimated parameters of each state, the systematic differences in definition and observation among regional systems of DHDN have been confirmed. Practical usage of 7 parameter similarity transformation and some suggestions are pointed out.

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Author notes

  1. Jianqing Cai

    Present address: Geodetic Institute of Stuttgart University, 70174, Germany

Authors and Affiliations

  1. Geodetic Institute, RWTH Aachen, Templergraben 55, 52062, Aachen, Germany

    Jianqing Cai

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  1. Jianqing Cai
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Correspondence to Jianqing Cai.

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Cai, J. The systematic analysis of the transformation between the German geodetic reference system (DHDN, DHHN) and the ETRF system (DREF91). Earth Planet Sp 52, 947–952 (2000). https://doi.org/10.1186/BF03352310

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  • DOI: https://doi.org/10.1186/BF03352310

Keywords

  • Transformation Parameter
  • Regional Transformation
  • Geodetic Reference System
  • Weighted Root Mean Square
  • Geodetic Institute