EGU General Assembly 2008
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  Information - G9 Geophysical models for the analysis of space-geodetic techniques

Event Information
Description of geophysical processes through global data sets or assimilated models plays an important role in the analysis of space geodetic observations: through “forward modelling” we reach closer to the ‘linear’ region of a highly complex and non-linear problem. Space geodesy can then improve our current understanding by incrementally correcting this modelling based on our observations. With an ever-increasing precision of the individual techniques, these models or data sets need to keep in pace in order to achieve the best results, with improved spatial and temporal resolution, and improved accuracy. In this session we solicit contributions from the groups that provide these models or data sets to describe their content, accuracy and terms of use, as well as from the analysts who require their use and need a forum to discuss and specify their needs and concerns for their applications. The gamut of the models and data sets to be discussed in this session focuses primarily on the description of temporal redistribution of mass in Earth’s fluid envelope, including but not limited to gravity, tides, and loading effects. Other topics that do not fall under this category but are equally welcome in the session are for example signal propagation in the atmosphere, Earth albedo, ocean circulation, and Earth rotation modelling at various time scales. In all cases, deterministic descriptions of the past as well as near-future ‘forecasts’ are of interest, with an eye on the quality, routine timely availability and wide accessibility for the latter. Comparisons and validations of these models and data sets are highly sought for, to help current and potential users understand their strengths and weaknesses.

Preliminary List of Solicited Speakers
M. Bos, JP. Boy, P. Gegout, T. van Dam, D. Salstein


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