<div dir="ltr"><div><span style="color:rgb(51,51,51);font-family:Arial,'Helvetica Neue',Tahoma,sans-serif;font-size:14px">Active ionospheric experiments using high power transmitters in the high frequency (HF) range provide unique insights into fundamental plasma processes in the ionosphere, thermosphere, magnetosphere (ITM) region of the upper atmosphere, effectively turning that region into a natural laboratory. We invite abstract submissions to a special session at the Triennial Earth-Sun Summit in Leesburg, Virginia, 20 to 24 May, 2018.</span><br></div><div><span style="color:rgb(51,51,51);font-family:Arial,'Helvetica Neue',Tahoma,sans-serif;font-size:14px"><br></span></div><div>The full session description and link to abstract submission is here:</div><div><br></div><div><a href="https://agu.confex.com/agu/2018tess/preliminaryview.cgi/Session40165">https://agu.confex.com/agu/2018tess/preliminaryview.cgi/Session40165</a> <br></div><div><br></div><div><div class="gmail-sessionItem" style="border:0px;margin:0px 0px 15px;padding:0px;font-size:14px;color:rgb(51,51,51);font-family:Arial,'Helvetica Neue',Tahoma,sans-serif">The abstract deadline is February 20, 2018.</div><div class="gmail-topdisplay" style="border:0px;margin:0px;padding:8px 0px;font-size:14px;width:678px;color:rgb(51,51,51);font-family:Arial,'Helvetica Neue',Tahoma,sans-serif"><div class="gmail-topdisplay_group" style="border:0px;margin:0px;padding:0px"><span class="gmail-topdisplay_role" style="border:0px;margin:0px;padding:0px;font-size:inherit;font-weight:bold;vertical-align:top">Primary Convener:  </span><span class="gmail-topdisplay_people" style="border:0px;margin:0px;padding:0px;font-size:inherit;width:610.1875px;display:block"><b style="border:0px;margin:0px;padding:0px">Robert P McCoy</b>, University of Alaska Fairbanks, Fairbanks, AK, United States </span></div><div class="gmail-topdisplay_group" style="border:0px;margin:0px;padding:0px"><span class="gmail-topdisplay_role" style="border:0px;margin:0px;padding:0px;font-size:inherit;font-weight:bold;vertical-align:top">Co-Conveners:  </span><span class="gmail-topdisplay_people" style="border:0px;margin:0px;padding:0px;font-size:inherit;width:610.1875px;display:block"><b style="border:0px;margin:0px;padding:0px">Robert M Robinson</b>, The Catholic University of America, Washington, DC, United States and <b style="border:0px;margin:0px;padding:0px">Richard A Behnke</b>, SciencePrime LLC, Vienna, VA, United States</span></div></div></div></div>