Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm11c0446h&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM11C-0446
Physics
2722 Forecasting, 2736 Magnetosphere/Ionosphere Interactions, 2740 Magnetospheric Configuration And Dynamics
Scientific paper
Fast and automatic procedure is required in space weather research based on large database obtained satellite observations. Model used in the procedure should be descriptive and flexible enough to identify a phenomenon that is highly variable depending on various conditions. We applied first-order B-spline fitting with variable node positions to the DMSP-F12, 13, 14, and 15 magnetic field data, and identified large-scale field-aligned currents (LSFACs) for each orbit. To the list of LSFACs, we added solar zenith angles at the ionospheric altitude and solar wind conditions observed by IMP-8 satellite.
Higuchi Takeo
Ohtani Shin
Ueno Genta
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