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ICME properties and their Solar cycle dependence

ICME properties and their Solar cycle dependence. Yan Li and Janet Luhmann UC Berkeley.

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ICME properties and their Solar cycle dependence

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  1. ICME properties and their Solar cycle dependence Yan Li and Janet Luhmann UC Berkeley

  2. ICMEs are the counter part of CMEs observed in the solar wind. Starting at the solarsurface or lower corona, CMEs take off with distinctive magnetic field structures and reach 1 AU in the order of a few days. • It is important to understand the many aspects of ICMEs for both understanding the origins of the CMEs and the reasons for their varying degrees of geoeffectiveness.

  3. ICMEs include the so-called magnetic clouds or flux ropes, and less simple ejecta. The complexity ofICMEs is in part due to the complexity of the CMEs themselves, and in part due to their interactions with the structured solar wind and/or other ICMEs during the journey to 1AU.

  4. Using in situ solar wind and IMF observations by ACE, WIND, PVO, IMP8, we study the different types of ICMEs and their solar cycle dependence.

  5. END Dec. 3, 2002

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