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IERS Message No. 75                                      August 12, 2005
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IERS Workshop on Combination

The International Earth Rotation and Reference Systems Service is
organizing a workshop on combination issues to be held at the
GeoForschungsZentrum (GFZ) in Potsdam on October 10 and 11, 2005. You
are invited to attend the workshop.

During the last one and a half years the IERS Working Group on
Combination (IERS WG3) has been coordinating the steps towards a set of
IERS combined products. The solutions are based on a rigorous
combination of "weekly" SINEX files produced by intra-technique
combinations within the Technique Centres. The new products resulting
from these combination procedures are expected eventually to replace a
considerable part of the current IERS products.

The workshop should bring together experts from the fields of
Terrestrial Reference Frame (TRF), Celestial Reference Frame (CRF) and
Earth Orientation Parameters (EOP) to discuss the combination and
validation strategies, the present status of combined intra- and
inter-technique products, their development and adoption in the future.


The main topics of the workshop are:

- Multi-year solutions: ITRF200x/local ties
      chaired by Z. Altamimi and D. Angermann

- Weekly solutions: station coordinates, off-sets in station coordinate
  time series, non-linear station behaviours, etc.)
      chaired by E. Pavlis and R. Biancale

- EOPs: Multi-year solutions, current analysis, weekly solutions, rapid
  products
      chaired by D. Gambis, J. Vondrak, and W. Wooden

- Comparison / validation with other time series
     chaired by R. Gross and T. van Dam

- Future products of IERS
     chaired by C. Ma and M. Rothacher


The sessions are open to all interested participants and will include
oral as well as poster presentations. You are kindly invited to submit
the title and an abstract for a presentation for one of the topics
above. Please fill in the form and send it back no later than

                           September 5, 2005.

The workshop will start on October 10 at noontime and will end on
October 11 at late afternoon. The sessions will last 90 minutes in
general and will include up to six standard oral presentations
(15 minutes : 12 minutes plus 3 minutes for discussion).

A special time slot has been reserved for poster presentations after the
end of the oral sessions, for the express purpose of focusing attention
on this important form of communication.

The abstract review process will take place from September 7 to
September 15, 2005. Following the completion of the review, the IERS
Central Bureau will send notification of mode of presentation and
session allocation to those who have returned, not later than September
5, 2005, the attached registration and abstract form by mail, fax or
e-mail. A follow-up second announcement with a detailed program will be
released in the second half of September 2005.


With kind regards

Chopo Ma, Chair of the IERS
Markus Rothacher, Chair of IERS WG 3 and IERS Analysis Coordinator
Bernd Richter, Director of IERS Central Bureau


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Please send back the registration form to

IERS Central Bureau
Subject: Workshop on Combination, October 10 / 11, 2005.


Bundesamt fuer Kartographie und Geodaesie
Richard Strauss Allee 11
D-60598 Frankfurt / Main
Germany

Fax: #49-69-6333-425
e-mail: central_bureau@iers.org

                      latest on September 5, 2005

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                      IERS WORKSHOP on COMBINATION
                              GFZ Potsdam
                          October 10 / 11, 2005

                            Registration form


Name:

Address:


Phone:

Fax:

E-mail:


[ ]  I intend to participate in the workshop.

[ ]  I will not attend, but I am interested in the results of the
     workshop.

[ ]  I will present a paper    oral [ ]    poster [ ]
Preferred session:

Title of presentation:

Abstract:


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