Articles | Volume 38, issue 2
https://doi.org/10.5194/angeo-38-481-2020
https://doi.org/10.5194/angeo-38-481-2020
Regular paper
 | 
08 Apr 2020
Regular paper |  | 08 Apr 2020

AMPERE polar cap boundaries

Angeline G. Burrell, Gareth Chisham, Stephen E. Milan, Liam Kilcommons, Yun-Ju Chen, Evan G. Thomas, and Brian Anderson

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Cited articles

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Boakes, P. D., Milan, S. E., Abel, G. A., Freeman, M. P., Chisham, G., Hubert, B., and Sotirelis, T.: On the use of IMAGE FUV for estimating the latitude of the open/closed magnetic field line boundary in the ionosphere, Ann. Geophys., 26, 2759–2769, https://doi.org/10.5194/angeo-26-2759-2008, 2008. a, b, c
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Short summary
The Earth's polar upper atmosphere changes along with the magnetic field, other parts of the atmosphere, and the Sun. When studying these changes, knowing the polar region that the data come from is vital, as different processes dominate the area where the aurora is and poleward of the aurora (the polar cap). The boundary between these areas is hard to find, so this study used a different boundary and figured out how they are related. Future studies can now find their polar region more easily.