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Evolutionary signatures in complex ejecta and their driven shocks

Farrugia, C.; Berdichevsky, D.

We examine interplanetary signatures of ejecta-ejecta interactions. To this end, two time intervals of inner-heliospheric (≤1AU) observations separated by 2 solar cycles are chosen where ejecta/magnetic clouds are in the process of interacting to form complex ejecta. At the Sun, both intervals are characterized by many coronal mass ejections (CMEs…

Predictions of the arrival time of Coronal Mass Ejections at 1AU: an analysis of the causes of errors

Cargill, P.; Owens, M.

. Three existing models of Interplanetary Coronal Mass Ejection (ICME) transit between the Sun and the Earth are compared to coronagraph and in situ observations: all three models are found to perform with a similar level of accuracy (i.e. an average error between observed and predicted 1AU transit times of approximately 11h). To improve long-term…