Seminars

Lecturer: Alexander Ruzmaikin, NASA JPL
Date: 2012-10-22 10:30
Place: Aniara

Compound Extremes of Solar Activity

Alexander Ruzmaikin
NASA, JPL

Solar activity manifest itself in flares, Coronal Mass Elections (CMEs), and Solar Energetic Particles (SEP) and changes in solar wind. The talk is about the extreme, high-speed (fast) CME and related SEP. These rare events are most hazardous for instruments and humans in space and can affect the ground Earth. We find that the fast CMEs and SEPs are distributed according to the extreme value distribution of Fréchet type. And the most interesting finding is that these rare events are not single but come in clusters. A non-trivial statistics of the extremes discovered in our work will help in understanding the origin and prediction of these rare events.

Created 2012-08-21 13:34:21 by Uwe Raffalski
Last changed 2012-10-18 14:11:04 by Mats Holmström