Classifications of substorm and storm triggering mechanisms

Details Classifications of substorm and storm triggering mechanisms Classifications of substorm and storm triggering mechanisms

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm54a..04l&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM54A-04

Physics

[2753] Magnetospheric Physics / Numerical Modeling, [2788] Magnetospheric Physics / Magnetic Storms And Substorms, [7924] Space Weather / Forecasting

Scientific paper

The extent to which solar wind conditions drive substorms remains unclear. Statistical studies have shown that approximately 60% of substorms appear to be driven by external solar wind conditions, while the remaining 40% cannot be associated with a solar wind trigger. Statistical analysis and data mining techniques are being used to analyze over ten years of satellite and earth-based data with the intent of developing a system for classification of storms and substorms based on solar wind conditions and storm characteristics. Results from such data analyses form a preliminary classification system from which a representative sample of events is selected. Each of the sample events is then analyzed using 3D multi-fluid simulations for the purpose of gaining insight into the processes dominating substorm onset, and for further refining the preliminary classification scheme.

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