[IGSMAIL-5020]: IGS ref frame paper now online

[Jim Ray (NGS 301-713-2850 x112)]

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IGS Electronic Mail      29 Sep 12:37:53 PDT 2004      Message Number 5020
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Author: Jim Ray, Danan Dong, Zuheir Altamimi

For your information, our position paper for the IGS workshop
in Bern has been published as a review article in GPS Solutions:


   IGS reference frames: status and future improvements

   J. Ray, D. Dong, and Z. Altamimi

   Abstract  The hierarchy of reference frames used in the
   International GPS Service (IGS) and the procedures and
   rationale for realizing them are reviewed. The Conventions
   of the International Earth Rotation and Reference Systems
   Service (IERS) lag developments in the IGS in a number of
   important respects.  Recommendations are offered for changes
   in the IERS Conventions to recognize geocenter motion (as
   already implemented by the IGS) and to enforce greater model
   consistency in order to achieve higher precision for combined
   reference frame products. Despite large improvements in the
   internal consistency of IGS product sets, defects remain which
   should be addressed in future developments. If the IGS is to
   remain a leader in this area, then a comprehensive, long-range
   strategy should be formulated and pursued to maintain and
   enhance the IGS reference frame, as well as to improve its
   delivery to users. Actions should include the official
   designation of a high-performance reference tracking network
   whose stations are expected to meet the highest standards
   possible.


   GPS Solutions, DOI:10.1007/s10291-004-0110-x