10 YEARS OF CME ONSET STUDIES WITH SOHO/CDS

摘要

Since the beginning of operations in 1996, SOHO/CDS has regularly run a CME onset study. Some of these datasets have been used to determine whether coronal dimmings are a signature of a CME occurring (Harrison & Lyons, 2000; Harrison et al., 2003). It has been claimed that the dimming is evidence of the removal of matter from the low corona. Results will be presented of a statistical study using 152 datasets (from 1998 until 2004) to determine whether coronal dimming can be used as a tool to predict CMEs. The results from CDS will be used in conjunction with lists of CMEs created from SOHO/LASCO data and results from CACTUS (Computer Aided CME Tracking).