Naslov
Influence of the CME orientation on the ICME propagatio

Autori
Martinić, Karmen ; Dumbović, Mateja ; Vršnak, Bojan ; Manuela, Temmer ; Astrid, Veronig

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
AGU Fall Meeting 2021

Mjesto i datum
Online, 13.12.2021. - 17.12.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Coronal mass ejection, tilt, drag parameter

Sažetak
Beyond a certain distance, the ICME propagation becomes mostly governed by the interaction of the ICME and the ambient solar wind. Configuration of the interplanetary magnetic field and features of the related ambient solar wind in the ecliptic and meridional plane are different. Therefore, one can expect that the inclination of the CME flux rope axis i.e. tilt, influences the propagation of the ICME itself. In order to study the relation between the tilt parameter and the ICME propagation, we investigated isolated Earth- impacting CME-ICME events in the time period from 2006. to 2014. We determined the CME tilt in the “near-Sun” environment from the 3D reconstruction of the CME, obtained by the Graduated Cylindrical Shell model using coronagraphic images provided by the STEREO and SOHO missions. We determined the tilt of the ICME in the “near-Earth” environment using in-situ data. We constrained our study to CME-ICME events that show no evidence of rotation while propagating, i.e. have a similar tilt in the “near-Sun” and “near-Earth” environment. For those events, we also calculated the drag parameter to check the implications for space-weather forecasting using the drag-based (ensemble) [DB(E)M] model of heliospheric propagation.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Geofizika, Interdisciplinarne prirodne znanosti

POVEZANOST RADA