| Date: | 2003-11-28 11:46:00 | |
| Sender: | Jim Ray & Zuheir Altamimi <Jim Ray <jray@bipm.org>> | |
| Subject: | [SLR-Mail] No. 1155: EGU Session on Reference Frame, Fluids, & Combinations | |
| Author: | Jim Ray | |
| Content: | ******************************************************************************** SLR Electronic Mail 2003-11-28 11:46:00 UTC Message No. 1155 ******************************************************************************** Author: Jim Ray & Zuheir Altamimi Subject: EGU Session on Reference Frame, Fluids, & Combinations EGU 1st General Assembly -- Nice, France, 25-30 April 2004 http://www.copernicus.org/EGU/ga/egu04/ Dear Colleagues, The 1st General Assembly of the European Geosciences Union will be held in Nice, France, 25-30 April 2004. We draw your attention in particular to session ”G7 - Reference Frame Definition, Influence of Geophysical Fluids, and Combination of Space Geodesy Techniques”: When the development of space geodetic techniques allowed tectonic motions to be routinely detectable, it became clear that global Earth-fixed reference frames could no longer be treated as static. Linear motion models were introduced in the 1980s, which served among other things to verify the theory of global plate tectonics. More recently, higher order (non-tidal) variations within the terrestrial frame are receiving growing attention as the temporal, spatial, and accuracy resolutions provided by geodetic data improve. For instance, the coupling of coherent deformations in the geodetic networks with gravity field variations could provide insight into large-scale fluid mass movements, an important aspect of understanding global change. To fully utilize such results for integrated Earth science applications, however, requires separating complicating effects such as highly localized motions (subsidence, tracking station problems, small-scale geophysical phenomena) and technique-related systematic errors (long wavelength GPS orbit errors, propagation correction errors, antenna model limitations). Combining results from independent techniques must be an essential part of the analysis process but doing so meaningfully in a time-series mode increases the requirements for careful cooperation and coordination. This symposium aims to illuminate all aspects of this complex, highly coupled problem. Papers are especially sought which study combinations of diverse data sets, particularly ground-based with space-based observations. Important Dates: 31 December 2003: Early Bird registration 01 January 2004: Deadline for support applications 11 January 2004: Deadline for receipt of abstracts 08 April 2004: Deadline for pre-registration & hotel booking Please consider submitting a paper to this symposium or contact us directly if you have any questions. Sincerely, Jim Ray, jray@bipm.org Bureau International des Poids et Mesures & National Geodetic Survey Zuheir Altamimi, altamimi@ensg.ign.fr Institut Geographique National From: ”Jim Ray” ******************************************************************************** |