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Authors: Andreeva V. A., and Tsyganenko N A
Title: Empirical modeling of the quiet and storm-time geosynchronous magnetic field
Abstract: A dynamical empirical model of the near-geosynchronous magnetic field has been constructed, based on a recently developed RBF approach and a multi-year set of spacecraft data taken by THEMIS, Polar, Cluster, and Van Allen Probes missions including 133 geomagnetic storms in the time interval between 1996 and 2016. The model describes the field as a function of Cartesian solar-magnetic coordinates, dipole tilt angle, solar wind ram pressure, and of a set of dynamic variables representing the response of the magnetosphere to the external driving/loading during the active phase of a space weather event, followed by the internal relaxation/dissipation during the storm recovery. In terms of the disturbance level, the model's validity range extends to intense storms with peak Sym-H values down to. . .
Date: 12/2017 Publisher: Space Weather DOI: 10.1002/2017SW001684 Available at: http://onlinelibrary.wiley.com/doi/10.1002/2017SW001684/full
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