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A new ionospheric electron precipitation module coupled with RAM-SCB within the geospace general circulation model

Electron precipitation down to the atmosphere due to wave-particle scattering in the magnetosphere contributes significantly to the auroral ionospheric conductivity. In order to obtain the auroral conductivity in global MHD models that are incapable of capturing kinetic physics in the magnetosphere, MHD parameters are often used to estimate electron precipitation flux for the conductivity calculation. Such an MHD approach, however, lacks self-consistency in representing the magnetosphere-ionosphere coupling processes. In thi ...

Yu, Yiqun; Jordanova, Vania; Ridley, Aaron; Albert, Jay; Horne, Richard; Jeffery, Christopher;

YEAR: 2016     DOI: 10.1002/2016JA022585

Diffusion Coefficient; electron lifetime; electron precipitation; ionospheric conductivity; MI coupling; Van Allen Probes; wave-particle interactions


Storm time response of the mid-latitude thermosphere: Observations from a network of Fabry-Perot interferometers

Observations of thermospheric neutral winds and temperatures obtained during a geomagnetic storm on 2 October 2013 from a network of six Fabry-Perot interferometers (FPIs) deployed in the midwest United States are presented. Coincident with the commencement of the storm, the apparent horizontal wind is observed to surge westward and southward (towards the equator). Simultaneous to this surge in the apparent horizontal winds, an apparent downward wind of approximately 100 m/s lasting for 6 hours is observed. The apparent neut ...

Makela, Jonathan; Harding, Brian; Meriwether, John; Mesquita, Rafael; Sanders, Samuel; Ridley, Aaron; Castellez, Michael; Ciocca, Marco; Earle, Gregory; Frissell, Nathaniel; Hampton, Donald; Gerrard, Andrew; Noto, John; Martinis, Carlos;

YEAR: 2014     DOI: 10.1002/2014JA019832

geomagnetic storm response; thermospheric winds; Van Allen Probes