HR: 10:50h
AN: SH32A-03    [Abstracts]
TI: Interplanetary Coronal Mass Ejections During 1996 - 2007
AU: * Richardson, I G
EM: ian.richardson@gsfc.nasa.gov
AF: Astroparticle Physics Laboratory, Code 661, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States
AU: * Richardson, I G
EM: ian.richardson@gsfc.nasa.gov
AF: Department of Astronomy/CRESST, University of Maryland, College Park, MD 20742, United States
AU: Cane, H V
EM: hilary.cane@utas.edu.au
AF: Astroparticle Physics Laboratory, Code 661, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States
AU: Cane, H V
EM: hilary.cane@utas.edu.au
AF: School of Mathematics and Physics, University of Tasmania, Hobart, 7001, Australia
AB: Interplanetary coronal mass ejections (ICMEs), the interplanetary counterparts of coronal mass ejections at the Sun, are the major drivers of interplanetary shocks in the heliosphere, and are associated with modulations of the galactic cosmic ray intensity, both short term (Forbush decreases caused by the passage of the shock, post- shock sheath, and ICME), and possibly with longer term modulation. Using several in-situ signatures of ICMEs, including plasma temperature, and composition, magnetic fields, and cosmic ray modulations, made by near- Earth spacecraft, we have compiled a "comprehensive" list of ICMEs passing the Earth since 1996, encompassing solar cycle 23. We summarize the properties of these ICMEs, such as their occurrence rate, speeds and other parameters, the fraction of ICMEs that are classic magnetic clouds, and their association with solar energetic particle events, halo CMEs, interplanetary shocks, geomagnetic storms, and cosmic ray decreases.
DE: 2101 Coronal mass ejections (7513)
DE: 2111 Ejecta, driver gases, and magnetic clouds
DE: 2162 Solar cycle variations (7536)
DE: 2164 Solar wind plasma
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Joint Assembly