Hemispheric asymmetries in the ionospheric response observed in the American sector during an intense geomagnetic storm
de Abreu, A. J., Fagundes, P. R., Sahai, Y., de Jesus, R., Bittencourt, J. A., Brunini, C., Gende, M., Pillat, V. G., Lima, W. L. C., Abalde, J. R., Pimenta, A. A.
Published in Journal of Geophysical Research: Space Physics (01.12.2010)
Published in Journal of Geophysical Research: Space Physics (01.12.2010)
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Studies of ionospheric F-region response in the Latin American sector during the geomagnetic storm of 21―22 January 2005
SAHAI, Y, FAGUNDES, P. R, BITTENCOURT, J. A, DE JESUS, R, DE ABREU, A. J, CROWLEY, G, KIKUCHI, T, HUANG, C.-S, PILLAT, V. G, GUARNIERI, F. L, ABALDE, J. R
Published in Annales geophysicae (1988) (27.05.2011)
Published in Annales geophysicae (1988) (27.05.2011)
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F layer postsunset height rise due to electric field prereversal enhancement: 2. Traveling planetary wave ionospheric disturbances and their role on the generation of equatorial spread F
Fagundes, P. R., Abalde, J. R., Bittencourt, J. A., Sahai, Y., Francisco, R. G., Pillat, V. G., Lima, W. L. C.
Published in Journal of Geophysical Research. A. Space Physics (01.12.2009)
Published in Journal of Geophysical Research. A. Space Physics (01.12.2009)
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F layer postsunset height rise due to electric field prereversal enhancement: 1. Traveling planetary wave ionospheric disturbance effects
Fagundes, P. R., Bittencourt, J. A., Abalde, J. R., Sahai, Y., Bolzan, M. J. A., Pillat, V. G., Lima, W. L. C.
Published in Journal of Geophysical Research. A. Space Physics (01.12.2009)
Published in Journal of Geophysical Research. A. Space Physics (01.12.2009)
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Day‐to‐day variability in the development of plasma bubbles associated with geomagnetic disturbances
Abalde, J. R., Sahai, Y., Fagundes, P. R., Becker-Guedes, F., Bittencourt, J. A., Pillat, V. G., Lima, W. L. C., Candido, C. M. N., de Freitas, T. F.
Published in Journal of Geophysical Research - Space Physics (01.05.2009)
Published in Journal of Geophysical Research - Space Physics (01.05.2009)
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Atypical nighttime spread-F structure observed near the southern crest of the ionospheric equatorial ionization anomaly
Fagundes, P. R., Bittencourt, J. A., de Abreu, A. J., Moor, L. P., Muella, M. T. A. H., Sahai, Y., Abalde, J. R., Pezzopane, M., Sobral, J. H. A., Abdu, M. A., Pimenta, A. A., Amorim, D. C. M.
Published in Journal of Geophysical Research: Space Physics (01.04.2012)
Published in Journal of Geophysical Research: Space Physics (01.04.2012)
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Observations of the F-region ionospheric irregularities in the South American sector during the October 2003 Halloween Storms
SAHAI, Y, BECKER-GUEDES, F, HUANG, C.-S, PI, X, LIMA, W. L. C, BITTENCOURT, J. A, OTSUKA, Y, FAGUNDES, P. R, DE ABREU, A. J, DE JESUS, R, PILLAT, V. G, ABALDE, J. R, MARTINIS, C. R, BRUNINI, C, GENDE, M
Published in Annales geophysicae (1988) (08.12.2009)
Published in Annales geophysicae (1988) (08.12.2009)
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Equatorial F-region plasma depletion drifts: latitudinal and seasonal variations
PIMENTA, A. A, FAGUNDES, P. R, SAHAI, Y, BITTENCOURT, J. A, ABALDE, J. R
Published in Annales geophysicae (1988) (01.12.2003)
Published in Annales geophysicae (1988) (01.12.2003)
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Geomagnetic storm and equatorial spread-F
Becker-Guedes, F., Sahai, Y., Fagundes, P. R., Lima, W. L. C., Pillat, V. G., Abalde, J. R., Bittencourt, J. A.
Published in Annales geophysicae (1988) (01.01.2004)
Published in Annales geophysicae (1988) (01.01.2004)
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Effects of the intense geomagnetic storm of September–October 2012 on the equatorial, low- and mid-latitude F region in the American and African sector during the unusual 24th solar cycle
de Jesus, R., Fagundes, P.R., Coster, A., Bolaji, O.S., Sobral, J.H.A., Batista, I.S., de Abreu, A.J., Venkatesh, K., Gende, M., Abalde, J.R., Sumod, S.G.
Published in Journal of atmospheric and solar-terrestrial physics (01.02.2016)
Published in Journal of atmospheric and solar-terrestrial physics (01.02.2016)
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Longitudinal differences observed in the ionospheric F-region during the major geomagnetic storm of 31 March 2001
Sahai, Y., Fagundes, P. R., Becker-Guedes, F., Abalde, J. R., Crowley, G., Pi, X., Igarashi, K., Amarante, G. M., Pimenta, A. A., Bittencourt, J. A.
Published in Annales geophysicae (1988) (01.01.2004)
Published in Annales geophysicae (1988) (01.01.2004)
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Effects observed in the equatorial and low latitude ionospheric F-region in the Brazilian sector during low solar activity geomagnetic storms and comparison with the COSMIC measurements
Sahai, Y., de Jesus, R., Fagundes, P.R., Selhorst, C.L., de Abreu, A.J., Tulasi Ram, S., Aragon-Angel, A., Pillat, V.G., Abalde, J.R., Lima, W.L.C., Bittencourt, J.A.
Published in Advances in space research (15.11.2012)
Published in Advances in space research (15.11.2012)
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Response of nighttime equatorial and low latitude F-region to the geomagnetic storm of August 18, 2003, in the Brazilian sector
Sahai, Y., Becker-Guedes, F., Fagundes, P.R., Lima, W.L.C., Otsuka, Y., Huang, C.-S., Espinoza, E.S., Pi, X., de Abreu, A.J., Bolzan, M.J.A., Pillat, V.G., Abalde, J.R., Pimenta, A.A., Bittencourt, J.A.
Published in Advances in space research (2007)
Published in Advances in space research (2007)
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Generation of large-scale equatorial F-region plasma depletions during lowrange spread-F season
Sahai, Y., Fagundes, P. R., Abalde, J. R., Pimenta, A. A., Bittencourt, J. A., Otsuka, Y., Rios, V. H.
Published in Annales geophysicae (1988) (01.01.2004)
Published in Annales geophysicae (1988) (01.01.2004)
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Plasma blobs associated with plasma bubbles observed in the Brazilian sector
Tardelli-Coelho, F., Pimenta, A.A., Tardelli, A., Abalde, J.R., Venkatesh, K.
Published in Advances in space research (15.10.2017)
Published in Advances in space research (15.10.2017)
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