Qualitative description of an activation of similar helical twists and associated mass motion around a bipolar filament system though at a large spatio-temporal scale. The black rectangular box on the 11:59 UT snapshot shows the apex position of a prominent magnetic flux tube where two plasma channels are likewise evident in the model. The observational snapshots are adopted from Joshi et al. (2014). © The American Astronomical Society

(An animation and a color version of this figure are available in the online journal.)

The video/animation of this figure is available in the online journal.