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

Frøystein, Ingeborg; Spicher, Andres; Oksavik, Kjellmar

doi:10.5194/angeo-44-577-2026

Articles | Volume 44, issue 1

https://doi.org/10.5194/angeo-44-577-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-44-577-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 44, issue 1

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

Data sets

Geomagnetic AE index World Data Center for Geomagnetism, Kyoto et al. https://doi.org/10.17593/15031-54800

OMNI 1-min Data Set N. E. Papitashvili https://doi.org/10.48322/45BB-8792

The Polar Cap North (PCN) index (definitive) Data Center For Geomagnetism, Copenhagen https://doi.org/10.11581/DTU:00000057

Model code and software

aburrell/aacgmv2: Version 2.6.3 A. G. Burrell et al. https://doi.org/10.5281/zenodo.7621545

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.