Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh23b1635z&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SH23B-1635
Physics
7509 Corona, 7513 Coronal Mass Ejections (2101), 7519 Flares, 7524 Magnetic Fields
Scientific paper
90 percentage of intense geomagnetic storms are generated by Earth-directed halo CMEs. Such geometrical and kinematial properties as the radial CME propagation direction, speed and acceleration are the must for forecasting the arrival time and speed of the associated ICME at the Earth's orbit. By using the elliptic cone model to mimic the 3-D rope-like CME structure, we have developed inversion equations to invert the geometrical [Zhao, 2008] and kinematical properties [Zhao et al, 2008] of the 3-D rope-like CMEs for frontside halo CMEs. This work further improves the inversion equations so that the geometrical and kinematical properties of 3-D rope-like CMEs can be more accurately inverted for most frontside halo CMEs. The dependence of the error in the inversion solution on the error in measured halo parameters is discussed.
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