<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><br></div><div><div>----------------------------------------------------------------------------------</div><div>Invitation to participate in the joint inter-association symposium on<span style="background-color: rgb(253, 253, 253);"> Data Assimilation in Geophysical Sciences (JM4: IAMAS, IAGA, IACS, IASPEI, IAPSO, IAG) at the 26th IUGG General Assembly in Prague, </span>Czech Republic<span style="background-color: rgb(253, 253, 253);">.</span></div><div>----------------------------------------------------------------------------------</div><div><br></div><div>We would like to invite the CEDAR community to participate in a joint inter-association symposium on <span style="background-color: rgb(253, 253, 253);">Data Assimilation in Geophysical Sciences </span>at the <span class="">26th General Assembly of the International Union of Geodesy and Geophysics </span>(<a href="http://www.iugg2015prague.com/">http://www.iugg2015prague.com/</a>)<span class="">, planned for </span>22 June-2 July 2015 in Prague, Czech Republic. The abstract deadline is 31 January 2015.</div><div><br></div><div><p style="margin: 0px 0px 5px; background-color: rgb(253, 253, 253); position: static; z-index: auto;">Data assimilation integrates the wealth of data from both satellite and in situ platforms to analyze the current and past state of the various elements of the Earth System, such as the atmosphere, the ionosphere, the ocean, the land and the cryosphere, forming the basis of improved forecasts from the mesoscale to the global scale. Data assimilation also plays a key role in efforts to couple the various elements of the Earth System, and benefit from proper account of the interactions between the elements of the Earth System. A key issue is the characterization of the uncertainty in past, current and future state estimates in both coarse and high resolution models. The symposium provides a forum for presentation and discussion of the latest research in data assimilation across the elements of the Earth System. There will be a focus on three developments: (i) characterization of errors; (ii) application of data assimilation techniques to coupled elements of the Earth System; (iii) extension of data assimilation activities to smaller spatial scales, notably for participatory sensing involving air quality and weather observations. We are therefore calling for presentations on data assimilation that focus on any of these three developments from both operational environments as well as explorative research applications. </p></div><div><p style="margin: 0px 0px 10px; background-color: rgb(253, 253, 253);"><br></p><p style="margin: 0px 0px 10px; background-color: rgb(253, 253, 253);">Convener: <a href="mailto:wal@nilu.no">William Lahoz</a>, Kjeller, Norway (IAMAS) </p><p style="margin: 0px 0px 10px; background-color: rgb(253, 253, 253); position: static; z-index: auto;">Co-conveners: Alexandre Fournier, Paris, France (IAGA), Richard Essery, Edinburgh, U.K. (IACS), Remy Bossu, Paris, France (IASPEI), Konstantin Belyaev, Moscom, Russia (IAPSO), Han Shin-Chan, Greenbelt, USA (IAG), Craig Bishop, Monterey, USA (IAMAS), Tomoko Matsuo, Boulder, USA (IAGA), Jeffrey Walker, Melbourne, Australia (IAMAS), Laurent Bertino, Bergen, Norway (IAPSO), Ian Fenty,Boston, USA (IAPSO)</p></div></div><div apple-content-edited="true"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline">
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