Presentation Type
Poster
Presentation Type
Submission
Department
Physics
Major
3/2 Engineering
Abstract
Observations of North-South auroral arcs (or Sun-aligned) have been recorded for many years. Discrete North-South auroral arcs are located between 73-84° MLAT and are usually associated moderate auroral activity, low solar wind dynamic pressure, and a small IMF z-component. Some observations reported quasi-periodic poleward motions of North-South aligned dayside auroral arcs. This current statistical study contains nine years of All-Sky Camera images obtained from the Boreal Aurora Camera Constellation (BACC) from the Kjell Henriksen Observatory (KHO) in Longyearbyen, Svalbard (GEO: 78.148 N, 16.043 E; AACGM: 75.24 N, 111.21 E). The characteristics of discrete North-South dayside auroral arcs, including spatial and temporal occurrence frequency, intensity, motion, and solar wind conditions occurring during their formation are reported.
Faculty Mentor
Gerard Fasel
Funding Source or Research Program
Keck Scholars Program
Location
Waves Cafeteria
Start Date
11-4-2025 1:00 PM
End Date
11-4-2025 2:00 PM
Dayside North-South Aligned Auroral Arcs
Waves Cafeteria
Observations of North-South auroral arcs (or Sun-aligned) have been recorded for many years. Discrete North-South auroral arcs are located between 73-84° MLAT and are usually associated moderate auroral activity, low solar wind dynamic pressure, and a small IMF z-component. Some observations reported quasi-periodic poleward motions of North-South aligned dayside auroral arcs. This current statistical study contains nine years of All-Sky Camera images obtained from the Boreal Aurora Camera Constellation (BACC) from the Kjell Henriksen Observatory (KHO) in Longyearbyen, Svalbard (GEO: 78.148 N, 16.043 E; AACGM: 75.24 N, 111.21 E). The characteristics of discrete North-South dayside auroral arcs, including spatial and temporal occurrence frequency, intensity, motion, and solar wind conditions occurring during their formation are reported.
