@Article{PaulinoMeBuTaSoGo:2011:PlBuZo,
author = "Paulino, Igo and Medeiros, A. F. and Buriti, R A and Takahashi, H.
and Sobral, Jose Humberto Andrade and Gobbi, D.",
affiliation = "{} and {} and {} and {} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Plasma bubble zonal drift characteristics observed by airglow
images over brazilian tropical region",
journal = "Revista Brasileira de Geof{\'{\i}}sica",
year = "2011",
volume = "29",
number = "2",
pages = "239--246",
note = "Setores de Atividade: Atividades profissionais,
cient{\'{\i}}ficas e t{\'e}cnicas, Pesquisa e desenvolvimento
cient{\'{\i}}fico.",
keywords = "plasma bubble, airglow, ionosphere, bolhas de plasma,
aeroluminescˆencia, ionosfera.",
abstract = "Using airglow images observed at Sao Joao do Cariri
(7.4\◦S, 36.5\◦W; dip angle: 11\◦S) from
September 2000 to April 2007, plasma bubble zonal drifts for
ninety-seven geomagnetically quiet nights (Dst index higher than
30 nT) were calculated. The plasma bubble eastward averaged drifts
presented an increase from 18:00 to 22:00 local time (LT), and
followed by a deceleration. The plasma bubbles observed during
high solar activity were faster after 22:00 LT. Eastward drifts
observed during the summer, after 21:00 LT, were higher than
drifts observed during the equinox months. Few nights had plasma
bubble eastward drifts higher than 100 m/s and almost all bubbles
disappeared after 02:00 LT. Averaged zonal drifts observed between
9.5 and 5.5\◦S were almost constant, primarily, around
23:00 LT. RESUMO. Usando imagens de aeroluminescencia coletadas em
Sao Joao do Cariri (7,4\◦S, 36,5\◦W; latitude de
dipolo magn´etico: 11\◦S) no per´\ıodo de setembro de
2000 a abril de 2007, foi poss´\ıvel calcular a deriva zonal
de bolhas de plasma em noventa e sete noites geomagneticamente
calmas (´\ındice Dst maior que 30 nT). As derivas zonais
m´edias das bolhas de plasma aumentaram das 18:00 at´e as 22:00
horas locais (HL) e desaceleraram em seguida. As bolhas de plasma
observadas durante a atividade solar alta foram mais r´apidas
ap´os as 22:00 HL. As derivas zonais de bolhas de plasma no verao,
depois das 21:00 HL, foram maiores que nos meses de equin´ocio.
Poucas noites apresentaram bolhas de plasma com derivas superiores
a 100 m/s e quase todas as bolhas desapareceram depois das 02:00
HL. As derivas m´edias zonais observadas entre 9,5 e 5,5\◦S
foram praticamente constantes, principalmente, por volta das 23:00
HL.",
issn = "0102-261X",
label = "lattes: 6775918052021463 5 PaulinoMeBuTaSoGo:2012:PLBUZO",
language = "pt",
targetfile = "a03v29n2.pdf",
urlaccessdate = "15 jun. 2024"
}