COMMISSION 1: Reference Frames
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Proposal emerging from Discussions in Nice before, at, and after
the third meeting of the "IAG Committee for the Realization of the
New IAG Structure" on April 26, 2002

C.K. Shum, G. Beutler, C. Boucher, H. Drewes, A. Dodson


SC1.1: Coordination of Space Techniques

This SC shall take over the coordinating role of its predecessor
CSTG in a changed environment. The SC shall establish and further
the contact of the essential services based on space techniques,
in particular IERS, IGS, ILRS, IVS and projects in C1 like DORIS.
To serve this purpose, SC1 shall organize

 - one session (2-3 hours) at one of the mentioned services' workshops
   (rotating between services) where common aspects and possible
   common activities are addressed (annual activity)

 - one business meeting of the services' representatives (the representatives
   on the Commission's steering committee) (annual activity)

 - define C1-projects which are also service working groups

 - establish and maintain the link to COSPAR

SC1.2: Global Reference Frame

Research-related and practical aspects of the Global Reference
Frame. Address fundamental issues of the multi-technique global
geodetic observatories. This SC must play a strong role in the
new IAG project. Its activities shall be coordinated with the
IERS.

SC1.3: Regional Reference Frames

shall offer a home for service-like regional reference frame
activities AND address common aspects of these units. In order to
avoid sub-sub-commissions (and similar nonsense), it is proposed
to formally establish

SC1.3a: EUREF, SC1.3b: SIRGAS, SC1.3c: NAREF, SC1.3c: AFREF,
SC1.3e: APSG, SC1.3f: SCAR (Antarctic)

with the understanding that these subcommissions also form the
steering committee of SC3 addressing common aspects, and
organizing combined workshops, sessions at workshops, etc.

SC1.4: Satellite Dynamics

This SC shall address interesting problems of satellite dynamics,
which are outside the scope of the services. One might, e.g.,
think of "materialization of the celestial reference frame in
satellite geodesy" as a central theme, where aspects like the
transfer of the QUASAR-derived frame into the optical domain, but
also the the value of modern high-accuracy astrometric places
(based on modern telescopes, CCD-equipment) could be addressed.

Commission 1 Projects:
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CP1.1: Altimetry (description follows, HERMANN PLEASE!!!!)

CP1.2: GNSS (description follows, HERMANN PLEASE!!!!)

CP1.3: DORIS (description follows,  HERMANN PLEASE!!!!)