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<pre><span lang="EN-US" style="font-family:"Verdana",sans-serif">** We apologize for multiple posting **<o:p></o:p></span></pre>
<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">Dear colleague,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">The next General Assembly of the European Geosciences Union will be held in
<b>Vienna, Austria, 23-28 April 2017</b>.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">We would like to draw your attention to session
<b>G5.2/AS4.44/CL2.20 </b></span><b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif">Atmospheric Remote Sensing with Space Geodetic Techniques (co-organized)</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif"><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">The description of the session is given below and it can also be found at
<a href="http://meetingorganizer.copernicus.org/EGU2017/session/22882">http://meetingorganizer.copernicus.org/EGU2017/session/22882</a><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">We encourage you to participate in it by submitting abstracts.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">Here is a link about how to submit an abstract:<span style="color:#1F497D">
</span><a href="http://egu2017.eu/abstract_management/how_to_submit_an_abstract.html">http://egu2017.eu/abstract_management/how_to_submit_an_abstract.html</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">Notice that the
<b>DEADLINE FOR ABSTRACT SUBMISSION IS 11 JANUARY 2017</b><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">We are looking forward to welcoming you in Vienna!<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:black">We wish you a healthy and successful 2017.</span><span lang="DE"><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="DE" style="font-size:10.0pt"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">Rosa Pacione, Henrik Vedel and Norman Teferle<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<o:p> </o:p></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN">--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">Today atmospheric remote sensing of the neutral atmosphere with space geodetic techniques is an established field of research and applications.
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">This is largely due to the technological advances and development of models and algorithms as well as, the availability of regional and global ground-based
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">networks, and satellite-based missions. Water vapour is under sampled in current operational meteorological and climate observing systems. Advancements
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">in Numerical Weather Prediction Models (NWP) to improve forecasting of extreme precipitation, requires GNSS troposphere products with a higher resolution
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">in space and shorter delivery times than are currently in use. Homogeneously reprocessed GNSS observations on a regional and global scale have high potential
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">for monitoring water vapour climatic trends and variability, and for assimilation into climate models. Unfortunately, these time series suffer from inhomogeneities
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">(for example instrumental changes, changes in the station environment), which can affect the analysis of the long-term variability. NWP data have recently
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">been used for deriving a new generation of mapping functions and in Real-Time GNSS processing these data can be employed to initialise Precise Point Positioning (PPP) processing algorithms,
shortening convergence times and improving positioning. At the same time, GNSS-reflectometry is establishing itself as an alternative method for retrieving soil moisture.<br>
We welcome, but not limit, contributions on the subjects below: Physical modelling of the neutral atmosphere using ground-based and radio-occultation data.
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">Multi-GNSS and multi-instruments approaches to retrieve and inter-compare tropospheric parameters. Real-Time and reprocessed tropospheric products for forecasting,
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">now-casting and climate monitoring applications. Assimilation of GNSS measurements in NWP and in climate models. Methods for homogenization of long-term GNSS tropospheric products. Studies
on mitigating atmospheric effects in GNSS positioning and navigation, as well as observations at radio wavelengths. Usage of NWP data
<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">in PPP processing algorithms. Techniques on retrieval of soil moisture from GNSS observations and studies of ground-atmosphere boundary interactions.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
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