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<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">** We apologize for multiple posting **<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">Dear Colleagues<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">The next General Assembly of the European Geosciences Union will be held in
<b>Vienna, Austria, 7-12 April 2019.</b><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">We would like to draw your attention to session
<b>G5.2/AS5.11 Atmospheric Sensing and Applications of Space-Geodetic Techniques: State-of-the-Art and Challenges<o:p></o:p></b></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">The description of the session is given below and it can also be found at
<a href="https://meetingorganizer.copernicus.org/EGU2019/session/30168">https://meetingorganizer.copernicus.org/EGU2019/session/30168</a><span style="color:#1F497D"><o:p></o:p></span></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">We encourage you to participate in it by submitting abstracts.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">Notice that the <b>DEADLINE FOR ABSTRACT SUBMISSION IS 10 JANUARY 2019, 13:00</b><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">The session G5.2/AS5.11 will also participate in the
<b>peer-reviewed joint proceedings</b> of the geodesy division that will be published in the EGU open-access journal Advances in Geosciences (see
<a href="https://www.advances-in-geosciences.net/"><span style="color:windowtext;text-decoration:none">https://www.advances-in-geosciences.net/</span></a>).<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">Do not hesitate to contact us directly if you have any questions.<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US">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="MsoPlainText"><span lang="EN-US">All the best for the New Year!<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm">
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">Rosa Pacione, Gert Mulder, Maximilian Semmling, Norman Teferle, Henrik Vedel <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">Geodesy contributes to Atmospheric Science by providing some of the Essential Climate Variables of the Global Climate Observing System (GCOS) such as: sea level from radar altimetry,
mass changes of ice and terrestrial water from satellite gravimetric missions, atmospheric water vapor from ground-based and space-based GNSS, as well as from VLBI and DORIS, atmospheric temperature from GNSS RO. Sensing of the neutral atmosphere with space
geodetic techniques is an established field of research and applications, thanks to the availability of regional and global ground-based networks as well as satellite-based missions. Water vapor, the most abundant greenhouse gas of the atmosphere, is under-sampled
in the current meteorological and climate observing systems, therefore obtaining and exploiting more high-quality humidity observations is essential to weather forecasting and climate monitoring. The production, exploitation and evaluation of operational GNSS-Meteorology
for weather forecasting is well established in Europe due to two decades of outstanding cooperation between the geodetic community and European national meteorological services. Advancements in Numerical Weather Prediction Models (NWP) to improve forecasting
of extreme precipitation, require GNSS troposphere products with a higher resolution in space and shorter delivery times than are currently in use. Homogeneously reprocessed GNSS observations on a regional and global scale have high potential for monitoring
water vapor climatic trends and variability. With shortening orbit repeat periods SAR measurements are a new potential source of information to improve NWP models. At the same time, high-resolution NWP data have recently been used for deriving a new generation
of mapping functions. In real-time GNSS processing these data can be employed to initialize Precise Point Positioning (PPP) processing algorithms, shortening convergence times and improving positioning. Furthermore, GNSS-reflectometry is establishing itself
as an alternative method for retrieving soil moisture and has the potential to be used to retrieve near-surface water vapor.<br>
<br>
We welcome, but not limit, contributions on the subjects below:<br>
</span><span lang="EN" style="font-size:11.5pt;font-family:"Open Sans";color:#212529"><br>
</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif">· Estimates of the state of the neutral atmosphere using ground-based and space-based geodetic data, use of those estimates in weather forecasting and climate monitoring.<br>
· Multi-GNSS and multi-instruments approaches to retrieve and inter-compare tropospheric parameters.<br>
· Real-Time and reprocessed tropospheric products for now-casting, forecasting and climate monitoring.<br>
· Assimilation of GNSS tropospheric products in NWP and in climate reanalysis models.<br>
· Production of SAR-based tropospheric parameters and use of them in NWP.<br>
· Methods for homogenization of long-term GNSS tropospheric products.<br>
· Studies of the delay properties of the GNSS signals for Earth-space propagation experiments.<br>
· Usage of NWP data in GNSS data processing.<br>
· Techniques on retrieval of soil moisture from GNSS observations and of ground-atmosphere boundary interactions.<br>
· Usage of satellite gravity observations, as obtained from GRACE and its successor GRACE-FO, for studying the atmospheric water cycle.</span><span lang="EN" style="color:#1F497D"><o:p></o:p></span></p>
</div>
<br>
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<br>
<font face="Arial" color="#3A4E58" size="2"><b>Rosa Pacione</b></font><br>
<font face="Arial" color="#3A4E58" size="1">Operational Programs<br>
<br>
Contrada Terlecchie - 75100 Matera - Italy<br>
Ph: +39 0835 377 556 | Fax: +39 06 4099-9973 <br>
rosa.pacione@e-geos.it<br>
<a href="http://www.e-geos.it/">e-GEOS.it</a></font> <br>
<br>
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