<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear Colleagues,<div class=""><br class=""></div><div class=""><div class="">We will have a session on “<b class="">Ionosphere Monitoring with GNSS</b>” in the upcoming Pacific PNT Meeting organized by the Institute of Navigation (ION). The meeting will be held in Honolulu, Hawaii on Apr 8-11, 2019. The abstract submission is due on November 1. We would like to invite you to submit an abstract to our session on,</div><div class=""><br class=""></div><div class=""><span class="" style="font-variant-ligatures: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255);">Processing algorithms for ionosphere monitoring, characterization from single and multiple GNSS receivers, ionospheric propagation phenomena, receiver design and tracking algorithms, tomography, ionospheric attenuation and scintillation, higher-order effects, plasma drift estimation and gradient measurements and Asia-Pacific regional ionosphere characteristics. </span></div><div class=""><br class=""></div><div class="">More information can be found at <a href="https://www.ion.org/pnt/call-for-abstracts.cfm" class="">https://www.ion.org/pnt/call-for-abstracts.cfm</a>. </div><div class=""><br class=""></div><div class="">Sincerely, </div><div class=""><br class=""></div><div class=""><i class="">Dr. Tzu-Wei Fang, CIRES/University of Colorado at Boulder and NOAA Space Weather Prediction Center, USA</i></div><div class=""><i class="">Dr. Zhe Yang, Tongji University, China</i></div></div></body></html>