Zobrazeno 1 - 10
of 151
pro vyhledávání: '"I. S. Batista"'
Autor:
A. M. Santos, G. Yang, A. A. Pimenta, C. G. M. Brum, I. S. Batista, J. H. A. Sobral, V. F. Andrioli, P. P. Batista, M. A. Abdu, J. R. Souza, P. K. Manoharan, C. Wang, H. Li, Z. Liu
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
This work presents the contribution of solar atmospheric tides (diurnal, semidiurnal, and terdiurnal modes) to the variability of the parameters critical frequency (foF2) and peak height of the F2-layer (hmF2) in the American sector during the transi
Externí odkaz:
https://doaj.org/article/143648537da249ea93bef0491ebdc1ef
Publikováno v:
Annales Geophysicae, Vol 40, Pp 259-269 (2022)
This work presents the daytime behavior of the intermediate layer (ILs) parameters (the virtual height – h'IL, and the top frequency – ftIL) over the low-latitude region of Cachoeria Paulista (CP, 22.42∘ S; 45∘ W, I: −34.59∘) during the 2
Externí odkaz:
https://doaj.org/article/f1efff73a7684e198428166871050279
Autor:
L. A. Da Silva, J Shi, L. C. A. Resende, O. V. Agapitov, L. R. Alves, I. S. Batista, C. Arras, L. E. Vieira, V. Deggeroni, J. P. Marchezi, C. Wang, J. Moro, A. Inostroza, H. Li, C. Medeiros, F. R. Cardoso, P. Jauer, M. V. Alves, S. S. Chen, Z. Liu, C. M. Denardini, W. Gonzalez
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
The dynamics of the electron population in the Earth’s radiation belts affect the upper atmosphere’s ionization level through the low-energy Electron Precipitation (EP). The impact of low-energy EP on the high-latitude ionosphere has been well ex
Externí odkaz:
https://doaj.org/article/24eec9cb55234ddbbae5ab332dca539e
Autor:
A. R. Paulino, F. D. S. Araújo, I. Paulino, C. M. Wrasse, L. M. Lima, P. P. Batista, I. S. Batista
Publikováno v:
Annales Geophysicae, Vol 39, Pp 151-164 (2021)
The variability in the amplitudes of the lunar semidiurnal tide was investigated using maps of total electron content over Brazil from January 2011 to December 2014. Long-period variability showed that the annual variation is always present in all in
Externí odkaz:
https://doaj.org/article/bdb656709f794d25aec1469da1f75801
Autor:
I. Paulino, A. R. Paulino, R. Y. C. Cueva, E. Agyei-Yeboah, R. A. Buriti, H. Takahashi, C. M. Wrasse, Â. M. Santos, A. Fragoso de Medeiros, I. S. Batista
Publikováno v:
Annales Geophysicae, Vol 38, Pp 437-443 (2020)
Using airglow data from an all-sky imager deployed at São João do Cariri (7.4∘ S, 36.5∘ W), the start times of equatorial plasma bubbles was studied in order to investigate the day-to-day variability of this phenomenon. Data from a period o
Externí odkaz:
https://doaj.org/article/642c9aa1d4fc4427a8313149d0c075f6
Publikováno v:
Annales Geophysicae, Vol 37, Pp 1005-1024 (2019)
In this work, we have performed a study for the first time on the climatology of the intermediate descending layers (ILs) over Brazilian equatorial and low-latitude regions during the extreme solar minimum period of 2009. The result of this study sho
Externí odkaz:
https://doaj.org/article/4610e81a4765416ba3e5b9f4724dc16d
Autor:
C. M. N. Candido, J. Shi, I. S. Batista, F. Becker-Guedes, E. Correia, M. A. Abdu, J. Makela, N. Balan, N. Chapagain, C. Wang, Z. Liu
Publikováno v:
Annales Geophysicae, Vol 37, Pp 657-672 (2019)
We present a case study of unusual spread-F structures observed by ionosondes at two equatorial and low-latitude Brazilian stations – São Luís (SL: 44.2∘ W, 2.33∘ S; dip angle: −6.9∘) and Fortaleza (FZ: 38.45∘ W, 3.9∘ S; dip a
Externí odkaz:
https://doaj.org/article/7c00fdb2be144cc6aabca9d5f604efde
Publikováno v:
Annales Geophysicae, Vol 36, Pp 609-620 (2018)
Equatorial plasma bubble/spread F irregularity occurrence can present large variability depending upon the intensity of the evening prereversal enhancement in the zonal electric field (PRE), that is, the F region vertical plasma drift, which basic
Externí odkaz:
https://doaj.org/article/d304c676822c4e63aadd63c6e3007276
Publikováno v:
Annales Geophysicae, Vol 36, Pp 587-593 (2018)
This work presents new results about sporadic E-layers (Es layers) using GPS (global positioning system) radio occultation (RO) measurements obtained from the FORMOSAT-3/COSMIC satellites and digisonde data. The RO profiles are used to study the E
Externí odkaz:
https://doaj.org/article/a42d7d25e0e04ebb8f5c4bbba9bfd034
Publikováno v:
Annales Geophysicae, Vol 36, Pp 459-471 (2018)
The main purpose of this study is to investigate the four-peak structure observed in the low-latitude equatorial ionosphere by the FORMOSAT/COSMIC satellites. Longitudinal distributions of NmF2 (the density of the F layer peak) and hmF2 (ionospher
Externí odkaz:
https://doaj.org/article/ea783db0c47c401991f1d8c6fcd32235