<div dir="ltr"><p class="MsoNormal" align="center" style="margin:0cm 0cm 0.0001pt;text-align:center;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Dear colleagues!</span></b></p><p class="MsoNormal" align="center" style="margin:0cm 0cm 0.0001pt;text-align:center;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""> </span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">We cordially invite all who are interested to participate in AOGS 2025 Interdisciplinary Session IG19 “GNSS data of high temporal resolution, new GNSS signals, modern GNSS receivers: New research opportunities to study Earth’s ionosphere, atmosphere and geo-dynamics”.</span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif";color:red"> </span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif";color:red">Deadline for Abstracts Submission comes soon on February 18, 2025. </span></b><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Abstract submission link: <a href="https://www.asiaoceania.org/aogs2025/public.asp?page=sessions_and_conveners.asp" target="_blank" style="color:rgb(5,99,193)">https://www.asiaoceania.org/aogs2025/public.asp?page=sessions_and_conveners.asp</a></span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""> </span></b></p><p class="MsoNormal" style="margin:6pt 0cm 0.0001pt;text-align:justify;text-indent:35.4pt;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">We expected that participants provide novel results in the areas:</span></b></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">1)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif";background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Coordinated Arctic, Mid-latitude and Low latitude Ionospheric Monitoring involving novel advances in GNSS-based techniques: regional and international networks of modernized GNSS sites; innovations in Remote sensing, data handling and analysis; coordinated research campaigns and collaborations</span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""></span></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">2)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">New GNSS signals, GNSS data with high temporal resolution, and new opportunities in the Earth's atmosphere and ionosphere sounding;</span></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">3)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Tropospheric and ionospheric indices and parameters based on measurements of new GNSS signals with high temporal resolution;</span></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">4)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Problems and advances in scintillation studies based on new GNSS signals;</span></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">5)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Impact of GNSS hardware and software on sensitivity and resolution of modern GNSS Remote sensing methods;</span></p><p style="margin:6pt 0cm 0.0001pt 36pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">6)<span style="font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times New Roman"">      </span></span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Modernization of GNSS upper atmospheric real</span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"MS Mincho"">‑</span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">time disaster information and alert networks and systems, taking into account new progress in GNSS technologies;</span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""> </span></b></p><p class="MsoNormal" align="center" style="margin:6pt 0cm;text-align:center;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Session Conveners:</span></b></p><p class="MsoNormal" style="margin:6pt 0cm 6pt 18pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Vladislav Demyanov,</span></b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""> Department of Space Weather forecast, Institute of Solar and Terrestrial Physics, Siberian Branch of Russian Academy of Sciences, Irkutsk, Russia</span></p><p class="MsoNormal" style="margin:6pt 0cm 6pt 18pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif";background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Periyadan T. Jayachandran</span></b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">, <span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Physics Department, University of New Brunswick, Fredericton, NB, Canada</span></span></p><p class="MsoNormal" style="margin:6pt 0cm 6pt 18pt;text-align:justify;line-height:16.8667px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">Shuanggen Jin</span></b><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif"">, </span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif";color:rgb(19,19,20)">Vice-President & Professor at Henan Polytechnic University</span><span lang="EN-US" style="font-size:12pt;line-height:18.4px;font-family:"Times New Roman","serif""></span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:22px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif""> </span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;text-indent:35.4pt;line-height:22px;font-size:11pt;font-family:Calibri,"sans-serif""><b><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif""> </span></b><b style="font-size:11pt;text-indent:35.4pt"><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif"">IG19 Session Abstract.</span></b></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;text-indent:35.4pt;line-height:22px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif"">The rapid advancement of GNSS technology, including new-generation satellites, signals, and receivers, presents a wealth of new research opportunities. These advancements, particularly the high-temporal-resolution GNSS signals, are now more accessible to research teams worldwide. However, the full potential of these technologies for studying the Atmosphere, Ionosphere, and other interdisciplinary fields has yet to be fully realized.</span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;text-indent:35.4pt;line-height:22px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif"">For a Space physicist, a GNSS receiver is often a 'black box'. Can we rely on a specific receiver manufacturer and their expensive equipment to conduct crucial Atmospheric and Space physics studies? Do the GNSS signals recorded with high temporal resolution truly enhance our sensitivity and resolution for Ionosphere or Atmosphere explorations? Which ionosphere-free combination is most effective for reconstructing TEC with minimal noise and reliably detecting a weak earthquake or tsunami-related ionospheric response? These are the practical questions that emerge with the evolution of GNSS technologies.</span></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;text-align:justify;text-indent:35.4pt;line-height:22px;font-size:11pt;font-family:Calibri,"sans-serif""><span lang="EN-US" style="font-size:12pt;line-height:24px;font-family:"Times New Roman","serif"">This section is devoted to new theories methods, and GNSS techniques which allow looking far beyond the limitations in the Earth's atmosphere, ionosphere and interdisciplinary fields such as geosciences, the availability of new GNSS signals, receivers and GNSS receivers with the capability of high sampling rate.</span></p></div>