Global Substorm Cycle: What can the models tell us? |
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| Authors: | Tuija I Pulkkinen Daniel N Baker |
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| Institution: | (1) Finnish Meteorological Institute, Helsinki, Finland;(2) Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, U.S.A |
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| Abstract: | Magnetospheric substorms represent the basic dynamic process in the coupled solar wind -- magnetosphere -- ionosphere system. Recent satellite missions have considerably advanced our means to monitor this vast environment. These observations are interpreted in the context of a hierarchy of models: Global MHD simulations and various techniques of nonlinear physics are used to characterize the large-scale features, whereas microphysical models are used to study the small-scale processes. Empirical models are described in order to address questions that involve meso-scale or multi-scale phenomena. We discuss some of the recent observations and relate those to new advancements in various modeling techniques. |
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| Keywords: | Magnetospheric dynamics substorms magnetotail plasma sheet current systems auroral phenomena |
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