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Dear Colleagues,
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<div style="margin: 0px;">We invite you to participate in the CEDAR-GEM Modeling Challenge Session at 2015 CEDAR Workshop. The session will be held on
<b>Thursday, 25 June, from 10:00 am -12:00 pm</b> at Kane 220 at the Univ. of Washington. </div>
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<div style="margin: 0px;"><b>Topics for discussions and tentative agenda:</b></div>
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<div style="margin: 0px;">1. Modeling neutral density/satellite drag during storms</div>
<div style="margin: 0px;"><span style="font-family: Symbol;"> • </span>Tidal mixing effects on neutral density,
<b>Tim-Fuller Rowell </b>(CU/NOAA SWPC) </div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Neutral density variability driven by geomagnetic forcing: Global Joule heating index,
<b>Mariangel Fedrizzi </b>(CU/NOAA SWPC) </div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Improvement in modeling of neutral density at high altitude,
<b>Eric Sutton</b> (AFRL)</div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Ensemble Assimilation Using First-Principles Models: A Tool for Three-Day Space Weather and Satellite Drag Forecasts,
<b>Marcin Pilinski </b>(ASTRA) </div>
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<div style="margin: 0px;"> Discussion</div>
<div style="margin: 0px;"><span style="font-family: Symbol;"> • </span>Metrics selection relevant drag study </div>
<div style="margin: 0px;"> i.<span class="Apple-tab-span" style="white-space:pre">
</span>Definitive orbits vs derived neutral density from orbit determination for model-data comparison </div>
<div style="margin: 0px;"> ii.<span class="Apple-tab-span" style="white-space:pre">
</span>Point vs averaged density </div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Possible sources of data at different altitudes </div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>How to Improve density prediction?</div>
<div style="margin: 0px;"> i.<span class="Apple-tab-span" style="white-space:pre">
</span>Capturing small scale structures during storm</div>
<div style="margin: 0px;"> ii.<span class="Apple-tab-span" style="white-space:pre">
</span>Prediction of geomagnetic indices</div>
<div style="margin: 0px;"> iii.<span class="Apple-tab-span" style="white-space:pre">
</span>Alternative geomagnetic indices </div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>How to Improve physics-based model neutral density at high altitude?</div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Ideas on linking thermospheric models to orbit propagators at CCMC</div>
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<div style="margin: 0px;">2. Regional TEC study</div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Status of regional TEC study</div>
<div style="margin: 0px;"> Discussion</div>
<div style="margin: 0px;"> <span style="font-family: Symbol;">• </span>Data preparation for model-data comparison </div>
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<div style="margin: 0px;">Please let us know if you have suggestions or comments.</div>
<div style="margin: 0px;">We look forward to seeing you at the workshop.</div>
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<div style="margin: 0px;">Best Regards,</div>
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<div style="margin: 0px;">Masha Kuznetsova</div>
<div style="margin: 0px;">Barbara Emery</div>
<div style="margin: 0px;">Ja Soon Shim</div>
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