The Scientific Committee on Solar-Terrestrial Physics (SCOSTEP) is pleased to announce that the 24th SCOSTEP/PRESTO Online Seminar by Dr. Manuela Temmer will be held via online on 9 October 2024.
The Sun’s most energetic phenomena are coronal mass ejections (CMEs) and solar flares. CMEs are massive clouds of magnetized plasma that can travel at speeds of several thousand kilometers per second, capable of crossing the Sun-Earth distance in less than one day. When they reach Earth, they can cause significant geomagnetic disturbances, collectively known as Space Weather. CMEs move through the ambient solar wind, a flow shaped by the interaction between slow and fast wind streams. These streams create stream interaction regions (SIRs), which can trigger geomagnetic storms themselves, often in a recurring pattern. The recent surge in solar activity, highlighted by the intense “May 2024” solar storms, has heightened even more the interest in understanding the origin and effects of dynamic solar wind structures on Geospace. To improve the accuracy of space weather forecasts, it’s essential to understand the physical processes that govern the interaction between CMEs and the solar wind. This seminar will focus on eruptive CME-flare events, the interplanetary propagation behaviour of CMEs and their relation to the background solar wind.
