Linear Prediction Filter Analysis of Solar Wind / Magnetosphere Coupling: Studies at non-Geosynchronous Altitudes and High Time Resolution

Details Linear Prediction Filter Analysis of Solar Wind / Magnetosphere Coupling: Studies at non-Geosynchronous Altitudes and High Time Resolution Linear Prediction Filter Analysis of Solar Wind / Magnetosphere Coupling: Studies at non-Geosynchronous Altitudes and High Time Resolution

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm42b0836r&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM42B-0836

Physics

2720 Energetic Particles, Trapped, 2722 Forecasting, 2784 Solar Wind/Magnetosphere Interactions, 2799 General Or Miscellaneous

Scientific paper

Early comprehensive studies of solar wind / magnetosphere coupling using linear prediction filters (LPFs) were published by Nagai (1988) and Baker et al. (1990). These studies demonstrated the utility of LPF analysis in specifying a global magnetospheric state in terms of energetic electron flux at geosynchronous altitudes. These methods are currently employed in real-time electron radiation belt prediction for satellite operation purposes at NOAA's Space Environment Center (SEC). Both of the previous studies, as well as the algorithms being used at the SEC, are based on daily averaged solar wind, energetic particle measurements, and geomagnetic indices, to remove any diurnal effects. The results presented here utilize these techniques, combined with recently developed statistical mapping algorithms and modern satellite data, to produce linear filters that describe the dynamic relationship between the solar wind and the Earth's energetic electron radiation environment at various local times, L-shells, and at measurement time scales much less than 24 hours.

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