<div dir="ltr"><div class="gmail_default" style="font-size:small">Dear Colleagues,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">With one week to go for early abstract submission and two weeks to the submission deadline of Aug.2 , we encourage you to submit an abstract to our SAPS-focused session at the 2017 AGU Fall Meeting in New Orleans (Dec. 11-15, 2017). Please contact a convener with any questions.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Session ID:</span><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> 27455 </span><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"><br>
<b><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Session Title:</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> SA014. Geomagnetic Storms, Substorms, and
Sub-Auroral Polarization Streams: Towards a Synthesis of Observations, Theory,
and Modeling in Magnetosphere-Ionosphere-Thermosphere (M-I-T) Coupling </span></b><br>
<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Section/Focus Group:</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"> SPA-Aeronomy</span></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Co-Organized with: SPA-Magnetospheric Physics</span><br><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Link:</span><span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">  </span></span><a href="https://agu.confex.com/agu/fm17/preliminaryview.cgi/Session27455" target="_blank"><span style="font-size:10pt;font-family:Verdana,sans-serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">https://agu.confex.com/agu/fm17/preliminaryview.cgi/Session27455</span></a><span style="font-size:8pt;font-family:Tahoma,sans-serif;color:black"><span></span></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:9.5pt;font-family:Arial,sans-serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span> </span></span></p>

<p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51);border:1pt none windowtext;padding:0in"><b>Conveners:</b>
 Stanislav Y Sazykin (</span><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51);border:1pt none windowtext;padding:0in">Rice University), </span><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51);border:1pt none windowtext;padding:0in">Philip John
Erickson (</span><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51);border:1pt none windowtext;padding:0in">MIT Haystack Observatory),  J. Michael Ruohoniemi, (Virginia Tech) and Simon G Shepherd (Dartmouth
College) </span></p></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><p class="MsoNormal" style="font-size:small;margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)"><b>Session Description:</b><span></span></span></p>

<p class="MsoNormal" style="font-size:small;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial"><span style="font-size:10.5pt;font-family:Arial,sans-serif;color:rgb(51,51,51)">Geomagnetic storms and substorms have dramatic
consequences for the coupled Magnetosphere-Ionosphere-Thermosphere (M-I-T)
system that test our system-level understanding. The Sub-Auroral Polarization
Stream (SAPS) is one such consequence, understood as a latitudinally narrow
band of enhanced poleward-directed (ionosphere) / radially directed
(magnetosphere) electric field that has a width of one to several degrees and
extends across many hours of magnetic local time towards the evening sector.
SAPS are present in regions equatorward of the auroral electron precipitation
boundary. We welcome presentations that address ionospheric and thermospheric
dynamics resulting from M-I-T coupling with specific focus on the cross-domain
connections to magnetospheric drivers. Experimental, theoretical and
model-based estimates of the location, extent and intensity of currents,
electric fields and composition and density structures are of interest.
Interpreted simulation results of the coupled system are sought.  We
welcome comprehensive analyses of events selected in the CEDAR-GEM SAPS
challenge.<span></span></span></p>

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