<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><font size="2">Dear Colleagues</font><div><font size="2"><br></font></div><div><br></div><div><span style="font-size: small;">We would like to draw your attention to the AGU 2019 Fall Meeting session </span><b style="font-size: small;">SA001</b><span style="font-size: small;"> entitled "</span><b style="font-size: small;">Advances in Equatorial Thermosphere and Ionosphere Studies</b><span style="font-size: small;">"</span><span style="font-size: small;">:</span></div><div><div><a href="https://agu.confex.com/agu/fm19/prelim.cgi/Session/74657"><font size="2">https://agu.confex.com/agu/fm19/prelim.cgi/Session/74657</font></a></div><div><b><font size="2"><br></font></b></div><div><div><b style="font-size: small;">Session description:</b><span style="font-size: small;"> </span></div></div><div><span style="color: rgb(38, 38, 38); orphans: 2; widows: 2;"><font size="2">This session focuses on understanding the dynamic and coupling processes of the thermosphere and ionosphere at equatorial latitudes during both quiet and disturbed periods. This includes equatorial ionospheric response to geomagnetic storms, storm-time penetration and disturbance dynamo electric fields, equatorial spread F/plasma bubbles, scintillations and their effects on communication and navigation systems, equatorial electrojet, vertical coupling of the atmosphere and ionosphere or forcing from below (planetary waves, tides, gravity waves, etc.) and induced ionospheric disturbances such as TIDs, and longitudinal variations of thermospheric and ionospheric parameters. We welcome observational, theoretical and modeling studies that advance our understanding and enable us to better forecast the low-latitude thermospheric and ionospheric behaviors, especially during geomagnetic storms. Presentations on new instruments and observational methods are also encouraged.</font></span></div><div><font size="2"><br></font></div><div><b style="font-size: small;">The deadline</b><span style="font-size: small;"> is Wednesday, 31 July 2019 at 23:59EDT (03:59GMT).</span></div><div><font size="2"><br></font></div><div><font size="2"><b>Conveners</b>: </font></div><div><font size="2">Elvira Astafyeva (IPGP, France), Chaosong Huang ( <span style="background-color: rgb(255, 255, 255); color: rgb(38, 38, 38); font-family: Roboto, sans-serif; orphans: 2; widows: 2;">Air Force Research Laboratory, USA), </span>Huixin Liu (<span style="background-color: rgb(255, 255, 255); color: rgb(38, 38, 38); font-family: Roboto, sans-serif; orphans: 2; widows: 2;">Kyushu University, Japan</span>), Endawoke Yizengaw (The Aerospace Corporation, USA)</font></div><div><font size="2"><br></font></div><div><font size="2">Please, consider submitting your contribution to our session. </font></div><div><br></div><div><br></div><div style="text-align: center;"><i><b><font color="#9a244f" style="font-size: 14px;">Looking forward to seeing you in San Francisco!</font></b></i></div><div><br></div><div style="text-align: left;"><br></div></div></body></html>