Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J. R. Abalde"'
Autor:
Y. Sahai, P. R. Fagundes, R. de Jesus, A. J. de Abreu, G. Crowley, T. Kikuchi, C.-S. Huang, V. G. Pillat, F. L. Guarnieri, J. R. Abalde, J. A. Bittencourt
Publikováno v:
Annales Geophysicae, Vol 29, Pp 919-929 (2011)
In the present investigation, we have studied the response of the ionospheric F-region in the Latin American sector during the intense geomagnetic storm of 21–22 January 2005. This geomagnetic storm has been considered "anomalous" (minimum Dst r
Externí odkaz:
https://doaj.org/article/058937468705456cbb46202b8ac1cfec
Response of the equatorial and low-latitude ionosphere during the space weather events of April 2002
Autor:
W. L. C. Lima, F. Becker-Guedes, Y. Sahai, P. R. Fagundes, J. R. Abalde, G. Crowley, J. A. Bittencourt
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3211-3219 (2004)
A digital ionosonde, of the type known as Canadian Advanced Digital Ionosonde (CADI), has been in routine operation at São José dos Campos (23.2° S, 45.9° W; dip latitude 17.6° S), Brazil, since August 2000. A new CADI was installed at Palmas
Externí odkaz:
https://doaj.org/article/ea1018be16ae46299e3996b52488f639
Autor:
Y. Sahai, P. R. Fagundes, F. Becker-Guedes, J. R. Abalde, G. Crowley, X. Pi, K. Igarashi, G. M. Amarante, A. A. Pimenta, J. A. Bittencourt
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3221-3229 (2004)
A new ionospheric sounding station using a Canadian Advanced Digital Ionosonde (CADI) was established for routine measurements by the "Universidade do Vale do Paraiba (UNIVAP)" at São José dos Campos (23.2° S, 45.9° W), Brazil, in August 2000.
Externí odkaz:
https://doaj.org/article/d83e621deab849cda531adf7739987c5
Autor:
F. Becker-Guedes, Y. Sahai, P. R. Fagundes, W. L. C. Lima, V. G. Pillat, J. R. Abalde, J. A. Bittencourt
Publikováno v:
Annales Geophysicae, Vol 22, Pp 3231-3239 (2004)
In August 2000, a new ionospheric sounding station was established at Sao Jose dos Campos (23.2° S, 45.9° W; dip latitude 17.6° S), Brazil, by the University of Vale do Paraiba (UNIVAP). Another ionospheric sounding station was established at P
Externí odkaz:
https://doaj.org/article/495ab683e46c43939b62fbf2ff1d00a8
Autor:
Y. Sahai, P. R. Fagundes, J. R. Abalde, A. A. Pimenta, J. A. Bittencourt, Y. Otsuka, V. H. Rios
Publikováno v:
Annales Geophysicae, Vol 22, Pp 15-23 (2004)
All-sky imaging observations of the F-region OI 630nm nightglow emission allow us to visualize large-scale equatorial plasma depletions, generally known as trans-equatorial plasma bubbles. Strong range type spread-F is the radio signature of these
Externí odkaz:
https://doaj.org/article/549dc35418ec4bd3acdac74d552f6596
Publikováno v:
Annales Geophysicae, Vol 21, Pp 2315-2322 (2003)
The equatorial ionospheric irregularities have been observed in the past few years by different techniques (e.g. ground-based radar, digisonde, GPS, optical instruments, in situ satellite and rocket instrumentation), and its time evolution
Externí odkaz:
https://doaj.org/article/5747dcab2b9c49af914af19f1f895475
Autor:
Y. Sahai, F. Becker-Guedes, P. R. Fagundes, A. J. de Abreu, R. de Jesus, V. G. Pillat, J. R. Abalde, C. R. Martinis, C. Brunini, M. Gende, C.-S. Huang, X. Pi, W. L. C. Lima, J. A. Bittencourt, Y. Otsuka
Publikováno v:
Annales Geophysicae, Vol 27, Iss 12, Pp 4463-4477 (2009)
The response of the ionospheric F-region in the South American sector during the super geomagnetic storms on 29 and 30 October 2003 is studied in the present investigation. In this paper, we present ionospheric sounding observations during the period
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::708f29533975c54b7698a294e13ef0bb
http://www.ann-geophys.net/27/4463/2009/angeo-27-4463-2009.pdf
http://www.ann-geophys.net/27/4463/2009/angeo-27-4463-2009.pdf
Publikováno v:
10th International Congress of the Brazilian Geophysical Society & EXPOGEF 2007, Rio de Janeiro, Brazil, 19-23 November 2007.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65f4cf283af7dc9d5eb26c70d13edc28
https://doi.org/10.1190/sbgf2007-417
https://doi.org/10.1190/sbgf2007-417
Publikováno v:
9th International Congress of the Brazilian Geophysical Society.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8901e9a52cee7dac6798007c6756bd76
https://doi.org/10.3997/2214-4609-pdb.160.sbgf441
https://doi.org/10.3997/2214-4609-pdb.160.sbgf441