The Prominence / AR spectrum shows a tremendous "zig-zag". I call it a lightning bolt! The zig-zag is indicative of regions of rapidly receding and approaching plasma closely spaced to each other. The red and blue shifts are associated with of speeds of 90 km/s and the "spiky" nature of the spectrum tells me that there are well-defined streams of gas heading towards and away from us - likely surges. Further out in the prominences (two are mainly visible) the lower spectrum shows gas which seems to be largely blue shifted.
