Articles | Volume 40, issue 2
https://doi.org/10.5194/angeo-40-191-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/angeo-40-191-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular paper
| 
28 Mar 2022
Regular paper |
| 28 Mar 2022
| 28 Mar 2022
A multi-instrumental and modeling analysis of the ionospheric responses to the solar eclipse on 14 December 2020 over the Brazilian region
Laysa C. A. Resende
CORRESPONDING AUTHOR
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Yajun Zhu
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
Clezio M. Denardini
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Sony S. Chen
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Ronan A. J. Chagas
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Lígia A. Da Silva
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Carolina S. Carmo
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Juliano Moro
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
Southern Space Coordination – COESU, Santa Maria, RS, Brazil
Diego Barros
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Paulo A. B. Nogueira
Instituto Federal de Educação Ciência e Tecnologia de São Paulo
– IFSP, Jacareí, SP, Brazil
José P. Marchezi
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Giorgio A. S. Picanço
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Paulo Jauer
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Régia P. Silva
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Douglas Silva
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
José A. Carrasco
National Institute for Space Research – INPE, São José dos
Campos, SP, Brazil
Chi Wang
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
Zhengkuan Liu
State Key Laboratory of Space Weather – NSSC/CAS, Beijing, China
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Laysa Cristina Araujo Resende, Clezio Marcos Denardini, Giorgio Arlan Silva Picanço, Juliano Moro, Diego Barros, Cosme Alexandre Oliveira Barros Figueiredo, and Régia Pereira Silva
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Maurício J. A. Bolzan, Clezio M. Denardini, and Alexandre Tardelli
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Equatorial ionospheric irregularities have a significant detrimental impact on a variety of space application systems in navigation and communication areas that utilize satellites, especially the Global Navigation Satellite Systems (GNSS) network. The development of these irregularities in the nighttime ionosphere is controlled primarily by ionospheric electric fields and instabilities. The effect of magnetic disturbance on these electric fields and on the irregularities is investigated here.
Laysa C. A. Resende, Christina Arras, Inez S. Batista, Clezio M. Denardini, Thainá O. Bertollotto, and Juliano Moro
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Paulo A. B. Nogueira, Mangalathayil A. Abdu, Jonas R. Souza, Clezio M. Denardini, Paulo F. Barbosa Neto, João P. Serra de Souza da Costa, and Ana P. M. Silva
Ann. Geophys., 36, 139–147, https://doi.org/10.5194/angeo-36-139-2018, https://doi.org/10.5194/angeo-36-139-2018, 2018
Short summary
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We have analyzed the low-latitude ionospheric responses to solar flares. In particular we show for the first time that 5 to 8 min of time delay is present in the peak effect in the EEJ, with respect that of Sq current outside the magnetic equator, in response to the flare radiation enhancement. We propose that the flare induced enhancement in neutral wind occurring with a time delay could be responsible for a delayed zonal electric field disturbance driving the EEJ.
Diego Barros, Hisao Takahashi, Cristiano M. Wrasse, and Cosme Alexandre O. B. Figueiredo
Ann. Geophys., 36, 91–100, https://doi.org/10.5194/angeo-36-91-2018, https://doi.org/10.5194/angeo-36-91-2018, 2018
Cosme Alexandre O. B. Figueiredo, Ricardo A. Buriti, Igo Paulino, John W. Meriwether, Jonathan J. Makela, Inez S. Batista, Diego Barros, and Amauri F. Medeiros
Ann. Geophys., 35, 953–963, https://doi.org/10.5194/angeo-35-953-2017, https://doi.org/10.5194/angeo-35-953-2017, 2017
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Short summary
This study showed the ionospheric response over low-latitude regions in Brazil predicted by Martínez-Ledesma et al. (2020) for the solar eclipse event on 14 December 2020. We used a multi-instrumental and modeling analysis to observe the modifications in the E and F regions and the Es layers over Campo Grande and Cachoeira Paulista. The results showed that solar eclipses can cause significant ionosphere modifications even though they only partially reach the Brazilian low-latitude regions.
This study showed the ionospheric response over low-latitude regions in Brazil predicted by...
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