Dayside Auroral Activity

• Main Authors: Merritt, Aine, Fasel, Gerard J.
• Format: Text
• Language: unknown
• Published: Pepperdine Digital Commons 2022
• Subjects: Solar terrestrial interaction; magnetic reconnection; astrophysics; Astrophysics and Astronomy; Longyearbyen; Svalbard
• Online Access: https://digitalcommons.pepperdine.edu/scursas/2022/posters/33; https://digitalcommons.pepperdine.edu/context/scursas/article/1673/type/native/viewcontent

The dayside aurora is greatly influenced by the solar wind. Many different types of dayside auroral features have been identified, including poleward-moving auroral forms (PMAFs), throat aurora, shock aurora, and diffuse aurora. This study looks at the dayside auroral activity using the BACC ground-based all-sky-cameras located in both Longyearbyen (Kjell Henriksen Observatory) and Ny-Alesund, Svalbard. There are times when PMAFs peel off the dayside auroral oval in an ordered fashion, elongated east-west arcs moving poleward. At other times, the dayside aurora displays arcs that have extreme brightening moving through the arcs as they exhibit swirls and become a bit chaotic during their poleward motion. Dayside aurora is categorized according to these types of activities. Solar wind conditions are presented for the aforementioned events.