caa a22 4500 445346558 CHVBK 20180317142830.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s11207-010-9684-3 doi (NATIONALLICENCE)springer-10.1007/s11207-010-9684-3 Statistical Comparison of Magnetic Clouds withInterplanetary Coronal Mass Ejections forSolarCycle23 [Elektronische Daten] [Chin-Chun Wu, R. Lepping] We compare the number and characteristics of interplanetary coronal mass ejections (ICMEs) to those of magnetic clouds (MCs) by using in-situ solar wind plasma and magnetic field observations made at 1 AU during solar cycle23. We found that ≈ 28% of ICMEs appear to contain MCs, since 103 magnetic clouds (MCs) occurred during 1995  - 2006, and 307 ICMEs occurred during 1996 - 2006. For the period between 1996 and 2006, 85 MCs are identified as part of ICMEs, and six MCs are not associated with ICMEs, which conflicts with the idea that MCs are usually a subset of ICMEs. It was also found that solar wind conditions inside MCs and ICMEs are usually similar, but the linear correlation between geomagnetic storm intensity (Dst min ) and relevant solar wind parameters is better for MCs than for ICMEs. The differences between average event duration (Δt) and average proton plasma β (〈β〉) are two of the major differences between MCs and ICMEs: i)the average duration of ICMEs (29.6h) is 44% longer than for MCs (20.6hours), and ii)the average of 〈β〉 is 0.01 for MCs and 0.24 for ICMEs. The difference between the definition of a MC and that for an ICME is one of the major reasons for these average characteristics being different (i.e., listed above as items i) andii)), and it is the reason for the frequency of their occurrences being different. US Government, 2010 Geomagnetic storm nationallicence Interplanetary coronal mass ejection nationallicence Magnetic cloud nationallicence Solar cycle nationallicence Wu Chin-Chun Naval Research Laboratory, 4555 Overlook Avenue, 20375, Washington, DC, USA aut Lepping R. Code 760, NASA/GSFC, 20771, Greenbelt, MD, USA aut Solar Physics Springer Netherlands 269/1(2011-03-01), 141-153 0038-0938 269:1<141 2011 269 11207 https://doi.org/10.1007/s11207-010-9684-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11207-010-9684-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Chin-Chun Naval Research Laboratory, 4555 Overlook Avenue, 20375, Washington, DC, USA aut NATIONALLICENCE 700 1- Lepping R. Code 760, NASA/GSFC, 20771, Greenbelt, MD, USA aut NATIONALLICENCE 773 0- Solar Physics Springer Netherlands 269/1(2011-03-01), 141-153 0038-0938 269:1<141 2011 269 11207 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer