Properties of coronal mass ejections observed by SOHO

Details Properties of coronal mass ejections observed by SOHO Properties of coronal mass ejections observed by SOHO

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsh32a..03y&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SH32A-03

Physics

7513 Coronal Mass Ejections

Scientific paper

We report the characteristics of more than 4000 coronal mass ejections (CMEs) observed by the SOHO LASCO Coronagraph from January 1996 through December 2001. We have measured the speed, size, location, and acceleration of each CME, and examined the annual variation of their distributions. All of CME measurements are shown in the online catalog (http://cdaw.gsfc.nasa.gov/). Using this CME catalog, we found that (1) almost of CMEs occurred around equator during the solar minimum, while CME appeared at all latitudes during the solar maximum. (2) the average speed increases toward solar maximum from 306 km/s to 500 km/s, and slightly decreases to 482 km/s in 2001. (3) The width distribution become wider toward solar maximum. These results are consistent with those of Solwind and Skylab.

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