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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">Dear Colleagues,<br class="ContentPasted0">
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">We invite you to consider submitting an abstract to the <span class="x_ContentPasted0 ContentPasted0" style="color: black;"><span data-markjs="true" class="mark77ed9240j ContentPasted0" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">SA021</span>
 session in SPA-Aeronomy at the AGU Fall Meeting, 2023 to be held in San Francisco, CA, 11-15 December, 2023.</span></span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<b><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Session Title:</span></b><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;"> <span data-markjs="true" class="mark77ed9240j ContentPasted0" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">SA021</span>
 - </span><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">The Geospace Dynamics Constellation (GDC): Research Goals, Opportunities, and Instrumentation </span></p>
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<b><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Session Description:</span></b><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">GDC is a six-satellite constellation, designed to investigate the dynamics of the coupling between the ionosphere and thermosphere, with two primary goals:
 (1) </span><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">understand how the high latitude ionosphere-thermosphere system responds to variable solar wind/magnetosphere forcing and (2) understand how
 internal processes in the global ionosphere-thermosphere system redistribute mass, momentum, and energy. Its orbital configuration will allow, for the first time, coverage of the full range of temporal and spatial scales in the I-T system.  </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">We invite presentations describing the GDC instrumentation and interdisciplinary science planned. In addition, presentations on possible investigations using the GDC measurements
 in conjunction with other data sources and modeling efforts are solicited, including ideas for synthesizing the vast amounts of data engendered.</span><span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif"> We also solicit
 presentations on current </span><span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">missions and potential future missions that are synergistic with GDC, as well as presentations focused on the societal and industrial
 benefits, such as communications and orbital drag. </span></p>
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<b><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Abstract Submission Deadline:</span></b><span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;"> Wednesday,
 2 August 2023 23:59 EDT/03:59 +1 GMT</span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">We look forward to receiving your contributions.</span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">If you have any questions, please do not hesitate to contact one of the session conveners.</span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">Sincerely,</span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif"> </span><span style="font-size:11.0pt;font-family:"Times New Roman",serif" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Phil Anderson </span></p>
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<span style="font-family: "Times New Roman", serif; color: black;" class="ContentPasted0"><a href="mailto:Phillip.anderson1@utdallas.edu" class="x_ContentPasted0 ContentPasted0" data-loopstyle="linkonly" data-linkindex="0">Phillip.anderson1@utdallas.edu</a> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Doug Rowland </span></p>
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<span style="font-family: "Times New Roman", serif; color: black;" class="ContentPasted0"><a href="mailto:douglas.e.rowland@nasa.gov" class="x_ContentPasted0 ContentPasted0" data-loopstyle="linkonly" data-linkindex="1">douglas.e.rowland@nasa.gov</a> </span></p>
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<span style="font-family: "Times New Roman", serif; color: black;" class="ContentPasted0"> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family: "Times New Roman", serif; color: black;">Aaron Ridley </span></p>
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<span style="font-family: "Times New Roman", serif; color: black;" class="ContentPasted0"><a href="mailto:ridley@umich.edu" class="x_ContentPasted0 ContentPasted0" data-loopstyle="linkonly" data-linkindex="2">ridley@umich.edu</a> </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">Bea Gallardo-Lacourt </span></p>
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<span class="x_ContentPasted0 ContentPasted0" style="font-family:"Times New Roman",serif">bea.gallardolacourt@nasa.gov </span></p>
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<div>Dr. Phillip C. Anderson<br>
University of Texas at Dallas<br>
Director, W. B. Hanson Center for Space Sciences<br>
800 W. Campbell Rd.  MS WT15<br>
Richardson, TX 75080<br>
work: 972-883-2875<br>
cell: 469-371-3744<br>
fax: 972-883-2761</div>
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