Plasmaspheric plumes: Occurrence frequency and quantification using a magnetospheric state vector

Details Plasmaspheric plumes: Occurrence frequency and quantification using a magnetospheric state vector Plasmaspheric plumes: Occurrence frequency and quantification using a magnetospheric state vector

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm11a1566a&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM11A-1566

Physics

[2730] Magnetospheric Physics / Magnetosphere: Inner, [2740] Magnetospheric Physics / Magnetospheric Configuration And Dynamics, [2760] Magnetospheric Physics / Plasma Convection, [2768] Magnetospheric Physics / Plasmasphere

Scientific paper

Plasmaspheric drainage plumes appear in the aftermath of periods of enhanced convection/erosion and are interpreted as a near-equatorial signature of the redistribution of thermal plasma along streamlines. Analysis of IMAGE/EUV observations reveals that for Kp ≥ 3, there is an 84% probability of observing a plasmaspheric plume in EUV data. We present a statistical analysis of the geomagnetic conditions [Kp, Dst, and solar wind-induced electric field] associated with EUV plume observations. Additionally, statistical analysis of the a solar wind-induced convection electric field at Earth [EY, SM] associated with EUV plume observations are presented. These results are then used to specify a single magnetospheric state vector to define the configuration of magnetosphere associated with the formation of this major plasmaspheric structure.

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