****************************************************************************** dorismail 18-Feb-2009 16:01:02 Message No 0584 ****************************************************************************** Author: Zuheir Altamimi Subject: IAG Scientific Assembly 2009 - Session 1 on Reference Frames Author: Zuheir Altamimi IAG Scientific Assembly 2009, Buenos Aires, Argentina, 31 August - 4 September 2009 - http://iag2009.com.ar/ Dear Colleagues, The IAG Scientific Assembly 2009 will be held in Buenos Aires, Argentina, August 31, September 4, 2009. I want to encourage you and your colleagues to attend and contribute in particular to Session 1 on Reference Frames. The summary of Session 1 is appended below. Please be advised that the FINAL deadline for abstract submissions to IAG 2009 is now 6 March 2009. For more information, please consult the IAG2009 web site: http://iag2009.com.ar/ Sincerely Yours Zuheir Altamimi ------------------------------------------------------------------- IAG2009 Scientific Assembly, Buenos Aires, August 31, Sept. 4, 2009 SESSION 1: Reference frames implementation for geoscience's applications: From local to global scales Convenors: Zuheir Altamimi (Institut Géographique National, France, altamimi@ensg.ign.fr), Claudio Brunini (La Plata University, Argentina, claudiobrunini@yahoo.com) IAG Commission 1 activities and objectives are to deal with theoretical aspects of reference systems and the practical applications for their realizations as well as applied researches. This session is devoted to studies related to theoretical definition of reference systems and frames and their practical determination as well as their relation to the interpretation of natural phenomena. A large number of permanent and continuous GPS networks are currently operating worldwide for geophysical and geodynamic studies. Station positions determination as a function of time using GPS data is crucial for these geoscience's applications and requires precise definition of the underlying Terrestrial Reference Frame (TRF). Any bias introduced in the TRF implementation which is due to analysis strategy or technique systematic errors inevitably lead to misinterpretation of the geophysical processes. The session is seen as a forum discussion on optimal strategies of the TRF implementation of national, local, continental and global GPS network solutions of station positions and velocities and their integration into the global International Terrestrial Reference Frame (ITRF). More emphasis will be given to regional activities where reference frames implementation is involved. Contributions from Regional IAG sub-commissions are particularly solicited. Of interest to this session is all the non-linear parts of station motion, their modelling and consequences to the reference frame realization, including heaviside jumps (e.g. for coseismic displacements), annual oscillations associated with environmental loading cycles, etc. Any other reference frame issues, being theoretical, practical applications and those related to the other techniques such as VLBI, SLR and DORIS and their combination, are also of great interest to this session. -- ---------------------------------------------------------------------- Zuheir Altamimi Email : altamimi@ensg.ign.fr Institut Geographique National Phone : 33 1 64 15 32 55 ENSG/LAREG FAX : 33 1 64 15 32 53 6-8 Avenue Blaise Pascal 77455 Champs-sur-Marne, FRANCE ---------------------------------------------------------------------- Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr