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Generic profile of a long-lived CIR and CME-CIR interactions

We observe and analyse a long-lived corotating interaction region (CIR), originating from a single coronal hole, recurring in 27 consecutive Carrington rotations 2057-2083 in the time period from June 2007 - May 2009. We present a generic profile of CIR in situ parameters, derived by using the superposed epoch analysis. We compare the generic CIR profile to the in situ profiles corresponding to different Carrington rotations of this long-lived CIR. We particularly focus our analysis on Carrington rotations where we identify CME-CIR interactions.

corotating interaction regions, high speed streams, coronal mass ejections

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