5.4 Storm-Time Modeling of the ITM System with SAMI3/GITM/RCM (Invited Presentation)

Tuesday, 8 January 2019: 11:30 AM
North 227A-C (Phoenix Convention Center - West and North Buildings)
Joseph D. Huba, Naval Research Laboratory, Washington, DC; and J. Krall, A. Ridley, and S. Sazykin

We present simulation results from the coupled SAMI3/GITM/RCM code on the impact of geomagnetic storms on the ionosphere/plasmasphere system. In this model, SAMI3 and RCM are self-onsistently coupled electrodynamically through the potential equation, and GITM provides the thermospheric conditions (e.g., neutral densities, temperature, and winds). We consider two storm events: March 17, 2013 and March 17, 2015 We compare and contrast the development of stormtime effects on the IT system: mid-latitude stormtime enhanced densities (SEDs), polar cap `tongues of ionization,' sub-auroral polarization streams, plasmasphere erosion, and plasmasphere plumes. We compare our model results to available data (e.g., Millstone Hill radar, GPS TEC).
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