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<p class="MsoNormal" style="mso-margin-top-alt:auto"><span lang="EN-US" style="font-size:10.0pt;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:10.0pt;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:10.0pt;font-family:"Verdana",sans-serif">The next General Assembly of the European Geosciences Union will be held in
<b>Vienna, Austria, 3–8 May 2020.</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/AS5<span style="color:#1F497D"> </span> </b></span><b><span lang="EN" style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#212529">Atmospheric and Environmental Monitoring with Space-Geodetic Techniques.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">The description of the session is given below and it can also be found at
</span><span class="share-link"><span lang="EN" style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#212529"><a href="https://meetingorganizer.copernicus.org/EGU2020/session/35338">https://meetingorganizer.copernicus.org/EGU2020/session/35338</a></span></span><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:#1F497D"><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: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 15 JANUARY 2020, 13:00</b><o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">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-size:10.0pt;color:#1F497D"><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:10.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0cm 0cm 1.0pt 0cm">
<p class="MsoPlainText"><span lang="EN-US" style="font-size:10.0pt">On behalf of the convenors of session G5.2, Rosa Pacione<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">Co-conveners: 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="margin-bottom:12.0pt;text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">Geodesy contributes to Atmospheric Science by providing some of the Essential Climate Variables of the Global Climate Observing System. Water vapor is under-sampled in the current
meteorological and climate observing systems. 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 20+ years of cooperation between the geodetic community and the national met services. Advancements in NWP models 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 data have high potential for monitoring water vapor climatic trends and variability. With shortening orbit repeat periods, SAR measurements are a new source
of information to improve NWP models. Using NWP data within real-time processing of GNSS observations can initialize PPP algorithms, shortening convergence times and improving positioning. GNSS signals can be used for L-band remote sensing when Earth-surface
reflected signals are considered. GNSS-reflectometry contributes to environmental monitoring with estimates of soil moisture, snow depth, ocean wind speed, sea ice concentration and has the potential to be used to retrieve near-surface water vapor.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">We welcome, but not limit, contributions on:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-autospace:ideograph-numeric">
<span lang="EN" style="font-size:11.5pt;font-family:"Open Sans";color:#212529"><br>
•</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Verdana",sans-serif">Estimates 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<br>
•Assimilation of GNSS tropospheric products in NWP and in climate reanalysis<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 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>
•Estimates and methods using GNSS reflectometry for the detection and characterization of sea ice<br>
•Usage of satellite gravity observations for studying the atmospheric water cycle.<o:p></o:p></span></p>
</div>
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<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>
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