EGU23-8233
https://doi.org/10.5194/egusphere-egu23-8233
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Variations of the ionospheric total electron content over Portugal Continental and Azores

Joana Pereira1,2, Anna Morozova1,2, Teresa Barata1,3, and Tatiana Barlyaeva1
Joana Pereira et al.
  • 1Instituto de Astrofísica e Ciências do Espaço, University of Coimbra, OGAUC, Coimbra, Portugal
  • 2Department of Physics, FCTUC, University of Coimbra, Coimbra, Portugal
  • 3Department of Earth Sciences, FCTUC, University of Coimbra, Coimbra, Portugal

The total electron content (TEC) variations over the Portuguese Mainland (Lisbon) and the Islands (Azores) are studied during the declining phase of the 24th solar cycle (December 2014 – November 2018). The two main goals of this study are (1) to understand main features of the TEC variability during quiet and disturbed days for the Portuguese territory and (2) to find similarities and differences in such features between the Continental (Iberian Peninsula area) and Oceanic (Azores area) parts.

Also, two methods to analyse TEC variations are used: TEC variations relative to a “quiet day” variation and the principal component analysis (PCA). Comparison of these methods and suggestions for the use of PCA to study TEC are made.

How to cite: Pereira, J., Morozova, A., Barata, T., and Barlyaeva, T.: Variations of the ionospheric total electron content over Portugal Continental and Azores, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-8233, https://doi.org/10.5194/egusphere-egu23-8233, 2023.