Articles | Volume 44, issue 1
https://doi.org/10.5194/angeo-44-577-2026
https://doi.org/10.5194/angeo-44-577-2026
Regular paper
 | 
01 Jul 2026
Regular paper |  | 01 Jul 2026

Spatial characteristics of the dayside auroral ionosphere observed by Incoherent Scatter Radar

Ingeborg Frøystein, Andres Spicher, and Kjellmar Oksavik

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Cited articles

Aggarwal, K., Nath, N., and Setty, C.: Collision frequency and transport properties of electrons in the ionosphere, Planet. Space Sci., 27, 753–768, https://doi.org/10.1016/0032-0633(79)90004-7, 1979. a
Baddeley, L., Lorentzen, D., Haaland, S., Heino, E., Mann, I., Miloch, W., Oksavik, K., Partamies, N., Spicher, A., and Vierinen, J.: Space and atmospheric physics on Svalbard: a case for continued incoherent scatter radar measurements under the cusp and in the polar cap boundary region, Progress in Earth and Planetary Science, 10, 53, https://doi.org/10.1186/s40645-023-00585-9 2023. a
Blanchard, G. T., Ellington, C. L., and Baker, K. B.: Comparison of dayside magnetic separatrix signatures in HF and incoherent scatter radar data, J. Geophys. Res.-Space, 108, https://doi.org/10.1029/2003JA009910, 2003. a
Burrell, A. G., van der Meeren, C., Laundal, K. M., and van Kemenade, H.: aburrell/aacgmv2: Version 2.6.3, Zenodo [code], https://doi.org/10.5281/zenodo.7621545, 2023. a, b
Carlson, H. C.: Sharpening our thinking about polar cap ionospheric patch morphology, research, and mitigation techniques, Radio Sci., 47, https://doi.org/10.1029/2011RS004946, 2012. a, b
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Short summary
The dayside auroral region is a highly dynamic region of the ionosphere that is influenced by the coupling between the solar wind, magnetosphere, and ionosphere. In this paper, we illustrate this dynamic nature and present a quantitative analysis of both altitudinal and latitudinal variation within the region. In addition, ionospheric parameters on closed field lines, along the open-closed field line boundary and in the polar cap are statistically compared.
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