@Article{CarmoPiDeFiVePi:2022:PaDaSt,
author = "Carmo, Carolina de Sousa and Pi, X. and Denardini, Clezio Marcos
and Figueiredo, Cosme Alexandre Oliveira Barros and
Verkhoglyadova, O. P. and Pican{\c{c}}o, Giorgio Arlan da Silva",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {California
Institute of Technology} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {California Institute of Technology} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Equatorial Plasma Bubbles Observed at Dawn and After Sunrise Over
South America During the 2015 St. Patrick's Day Storm",
journal = "Journal of Geophysical Research: Space Physics",
year = "2022",
volume = "127",
number = "10",
pages = "e2021JA029934",
month = "Oct.",
keywords = "ionospheric scintillation, ionospheric irregularity, equatorial
plasma bubble.",
abstract = "This paper presents an analysis of Equatorial Plasma Bubble (EPB)
events that occurred during pre- and post-sunrise hours in the
South America sector on 18 March 2015, when the St. Patrick's Day
geomagnetic storm was in the recovery phase. The data from a set
of multi-diagnostic instruments, including Global Navigation
Satellite Systems (GNSS) receivers, L-band GNSS ionospheric
scintillation monitors, ionosondes, and a Fabry-Perot
interferometer, are analyzed. Strong L-band amplitude
scintillation was observed with spread-F and total electron
content (TEC) fluctuations at times when the electron density and
tTEC were minimum with respect to their diurnal variations. The
EPBs remained observed for about 3:30 hr after sunrise on the east
coast of the South American continent. The daytime ionospheric
irregularities show a longitudinal dependency between the west and
east coasts, separated by about 3,600 km. Our analysis of the
observations suggests that a Disturbance Dynamo Electric Field
effect caused by storm-time wind perturbations might have
triggered the Rayleigh-Taylor instability near local dawn on the
east and west coasts of the South American continent. The effects
of ambient ionosphere-thermosphere conditions on the evolution of
irregularities are assessed to understand the longitudinal
differences. The assessment includes the effect of the E region
that appears in the morning hours and the effects of geomagnetic
declination and tilting the solar-terminator.",
doi = "10.1029/2021JA029934",
url = "http://dx.doi.org/10.1029/2021JA029934",
issn = "2169-9402",
language = "en",
targetfile = "JGR Space Physics - 2022 - Carmo - Equatorial Plasma Bubbles
Observed at Dawn and After Sunrise Over South America During.pdf",
urlaccessdate = "02 maio 2024"
}