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Multi-wavelength and Multi-perspective Studies of Coronal Mass Ejections and Their Driven Shocks
Ying, B. L.
Coronal Mass Ejections (CMEs) are one of the most fierce explosion phenomena in the solar atmosphere. CMEs usually release a large amount of energy and eject massive magnetized plasma. CME-driven shocks can further lead to solar energetic particle (SEP) events and affect the safety of spacecraft and astronauts. Therefore, researches on CME initiat…
Statistical Studies on Geomagnetically Induced Current Events Driven by Earth-directed Full Halo Coronal Mass Ejections
Lin, J.; Liu, C. M.; Wang, K. R. +1 more
Solar activities and eruptions can cause the power transmission system to be an abnormal condition,especially for an extra-long distance electric power transmission system.We analyzed the coronal mass ejection (CME) data from SOHO/LASCO (Solar and Heliospheric Observatory/Large Angle and Spectrometric Coronagraph),and the geomagnetically induced c…
The Speed Distributions of CMEs after the Projection Correction
Li, K. J.; Gao, P. X.
Observations of coronal mass ejections (CMEs) with coronagraphs are subject to the projection effect, which results in statistical errors in many properties of CMEs, such as the speed. In this paper, using the method based on the cone model to correct the speeds of CMEs due to the projection effect, we study the speed distribution of CMEs before a…
Fuzzy classification of coronal mass ejection properties
Tang, Y. H.; Han, Z. Z.
Fuzzy set theory is applied to a quantitative study of coronal mass ejection properties for importance category. The membership function can be determined according to statistical results and the correlation between CME morphology properties and characteristic factors. CME importance category has been obtained by data reduction. A useful software …