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	Quick Search Author Title Abstract Nr. Schedule Nr. Programme Groups Atmospheric Sciences Biogeosciences Climate: Past, Present, Future Cryospheric Sciences Energy, Resources and the Environment Geodesy Geodynamics Geomorphology Geophysical Instrumentation Hydrological Sciences Magnetism, Palaeomagnetism, Rock Physics & Geomaterials Natural Hazards Nonlinear Processes in Geophysics Ocean Sciences Planetary and Solar System Sciences Seismology Soil System Sciences Solar-Terrestrial Sciences Stratigraphy, Sedimentology and Paleontology Tectonics and Structural Geology Volcanology, Geochemistry, Petrology & Mineralogy Union Symposia Educational Symposia   Information - G12 Updating the IERS Conventions Event Information The IERS Conventions (2003) were made available in electronic form in November 2003 (ftp://tai.bipm.org/iers/conv2003/ and ftp://maia.usno.navy.mil/conv2003/) . The IERS Conventions Center has begun preparing the next update of the Conventions (http://tai.bipm.org/iers/convupdt/convupdt.html). The IERS Conventions provide the basic models, software and procedures for effects common to all space geodetic techniques used by the IERS. On the other hand, items which are specific to one technique (generally hardware-dependent) should be covered by technique-specific conventions. Some of the topics which should be considered in updating the IERS Conventions have already been identified; see the new Conventions Forum website at http://tai.bipm.org/iers/forum . It is expected that all effects (such as station displacement) that are periodic and have a consistent and accurate a-priori model, expressed in closed form, should be included in the IERS Conventions. To be considered in updating IERS Conventions (2003) are e.g. models for sub-daily effects concerning geocenter motion due to ocean tides and atmosphere pressure loading, revision of models for tidal effects on Earth orientation parameters, etc. Models for long-term or non-periodic effects, which have an impact on the definition of reference frames, are also to be studied, although their inclusion as conventional effects will need to be discussed. This session will focus on models, software and procedures which are relevant to the IERS Conventions, i.e. which are not technique-dependent. However inputs that concern the application of IERS Conventions by analysis centers of specific techniques are encouraged, and inputs that may concern technique-related Conventions are also welcome. Of particular interest are studies of the impact of current or proposed conventional models on the accuracy or performance limits of space geodetic results. Preliminary List of Solicited Speakers Co-Sponsorship General Statement The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published. Back to Session Programme

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