Speaker
Description
Solar coronal mass ejections (CMEs) leave several signatures in the low corona as identified in EUV and X-ray images, such as intense flares, dimmings, EUV waves, etc., before they appear in white-light coronagraph images. Among them, coronal dimmings are arguably the most reliable indicator of the CME, but their predictive potential for space weather is not yet demonstrated beyond the general remark that dimming regions may represent locations of mass evacuation due to the CME, including the footprints of the flux rope that drives it. We statistically study how much of the properties of CMEs and their heliospheric consequences, i.e., interplanetary CMEs (ICMEs), may be learned from the nascent CMEs as captured in EUV images from SDO, STEREO and Solar Orbiter by correlating observed CME proxies with ICMEs in both directions. We also use AWSoM (Alfven-Wave Solar Model) simulations to understand the link between the solar origin and 1 AU consequences of CMEs of different magnitudes.
