The Convection Electric Field in the Inner Magnetosphere: A Parameterized Model Using Cluster Data

Details The Convection Electric Field in the Inner Magnetosphere: A Parameterized Model Using Cluster Data The Convection Electric Field in the Inner Magnetosphere: A Parameterized Model Using Cluster Data

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsm51d..06p&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SM51D-06

Other

2712 Electric Fields (2411), 2730 Magnetosphere: Inner, 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954)

Scientific paper

Improved knowledge of the spatio-temporal structure of the equatorial convection electric field, or, CEF, during all phases of a geomagnetic storm is paramount to developing the predictive capabilities of plasmasphere, ring- current and radiation belt models. In this study, an empirically-based, parameterized model of the CEF is developed using electric field data from Cluster. The CEF model development currently has 6 main tasks: the construction of a merged electric field data set from the Cluster EDI and EFW data sets, the derivation of electric potential patterns from the merged CEF data set, the extrapolation of the patterns to L-shell lower than Cluster perigee, the parameterization of the model by the interplanetary electric field, the extensive comparison of the model to other existing convection models, and finally, the use of the model as input to the UNH ring current-atmosphere interactions model (UNH-RAM), in order to assess its predictive capabilities during geomagnetic storms. Progess made towards each of these tasks will be discussed.

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