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<p class="elementtoproof" style="margin:0in;background:white"><span style="font-family:"Arial",sans-serif;color:black">Dear Colleagues, </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">We would like to invite the community to submit an abstract to the special session in Commission G: “<b>Ionospheric Storms</b>” at the upcoming URSI-NRSM conference, which will be held in Boulder, CO
January 6-9, 2026. </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Times New Roman",serif;color:#201F1E"> </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">Ionospheric storms, especially extreme events, have not been uncommon in this solar cycle. We have seen auroras seen as far as Bahamas during the Gannon storm. There have been over 120 days since 2023
when the Dst index has gone below -50nT. Our special session seeks contributions from various case studies, modeling, statistical or machine learning based studies of the ionospheric storms in the last 2 solar cycles. </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">The deadline for abstract submissions is</span><span class="apple-converted-space"><span style="font-family:"Arial",sans-serif;color:black"> </span></span><b><span style="font-family:"Arial",sans-serif;color:black">September
12, 2025<span style="background:white">.</span></span></b><span style="font-family:"Arial",sans-serif;color:black"> Submission website:<a href="https://nrsmboulder.squarespace.com/" target="_blank" title="https://nrsmboulder.squarespace.com/"><span style="color:black"> </span></a></span><span style="color:blue;background:white"><a href="https://www.nrsmboulder.org/papers.php" target="_blank" title="https://www.nrsmboulder.org/papers.php">https://www.nrsmboulder.org/papers.php</a></span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">We look forward to seeing you in Boulder!</span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">Best Regards, </span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-family:"Arial",sans-serif;color:black">Anthea Coster and Kshitija Deshpande</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:Helvetica;color:black;mso-ligatures:none">Anthea J. Coster, PhD (she/her/hers)<br>
MIT Haystack Observatory<br>
99 Millstone Road<br>
Westford, MA 01886<br>
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<b>phone: 617-715-5753<br>
fax: 781-981-5766<br>
email: <a href="mailto:costera@mit.edu"><span style="color:black;text-decoration:none">costera@mit.edu</span></a> or ajc@haystack.mit.edu<br>
web: <a href="http://www.haystack.mit.edu"><span style="color:#0563C1">www.haystack.mit.edu</span></a><o:p></o:p></b></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:Helvetica;color:#232333;background:white;mso-ligatures:none">zoom: <a href="https://mit.zoom.us/my/ajcoster" title="https://mit.zoom.us/my/ajcoster"><span style="color:#0563C1">https://mit.zoom.us/my/ajcoster</span></a></span></b><b><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;mso-ligatures:none"><o:p></o:p></span></b></p>
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