Analysis of the nighttime lower ionosphere by monitoring VLF waves propagation in Antarctic
Tipo
Artigo de evento
Data de publicação
2021
Periódico
2021 IEEE International Conference on Aerospace and Signal Processing, INCAS 2021
Citações (Scopus)
0
Autores
Samanes J.
Gamonal J.
Correia E.
Cueva R.Y.C.
Gamonal J.
Correia E.
Cueva R.Y.C.
Orientador
Título da Revista
ISSN da Revista
Título de Volume
Membros da banca
Programa
Resumo
© 2021 IEEE.The nighttime lower ionosphere behavior between 2007 to 2011 is studied estimating the nighttime reflection height (hN) from Very Low Frequency (VLF) waves propagation recorded at Brazilian Antarctic Station Comandante Ferraz (EACF). We focus on the long-term solar activity effect on hN. The results show that hN decrease while the solar activity starts to increase suggesting a control of the solar radiation on the nighttime lower ionosphere, and hence, on the electron density at night. Preliminary results show that the nighttime lower ionosphere might be influenced by the 27-days solar rotation and by long-term atmospheric oscillations as Semiannual (SAO) and Annual (AO) oscillations.
Descrição
Palavras-chave
Assuntos Scopus
Antarctic stations , Atmospheric oscillations , Long-term solar activity , Low-frequency waves , Lower ionosphere , Nighttime low ionosphere , Solar rotation , Solar: activity , Very low frequency , Very low frequency wave