@InProceedings{CandidoSBCWKCLS:2019:HiStCo,
author = "Candido, Cl{\'a}udia Maria Nicoli and Shi, J. and Becker Guedes,
F{\'a}bio and Correia, Em{\'{\i}}lia and Wang, C. and Klausner,
V. and Cecatto, Jos{\'e} Roberto and Liu, Z. and Santos, S.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and National
Science Space Center - NSSC, State Key Laboratory and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and National Science Space Center -
NSSC, State Key Laboratory and {Universidade do Vale do
Para{\'{\i}}ba (UNIVAP)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and ational Science Space Center - NSSC, China
Brazil Jont Laboratory for Space Weather and {Instituto Nacional
de Pesquisas Espaciais (INPE)}",
title = "High-speed streams, Corotating Interaction Region, and HILDCAAs as
important drivers of the ionospheric variability during low solar
activity",
year = "2019",
organization = "IUGG General Assembly, 27.",
abstract = "Coronal holes are unipolar magnetic-field in the solar corona
mostly observed at equatorial region during declining or minimum
phase of the solar cycle. Their open magnetic field configuration
allows the escape of particles and ions as high-speed solar wind
streams. As they propagate in the interplanetary space, they form
complex interactions regions which reach the geospace causing
geomagnetic storms. Generally, a variety of effects are observed
after the beginning of the geomagnetic storm, as it is important
to understand the most important factors which impact the upper
atmosphere and ionosphere. Combined events related to coronal
holes and active regions in the Sun can also be observed. In this
work, the ionospheric response at an equatorial region in the
Brazilian sector to long duration recurrent coronal holes and
their associated geomagnetic storms during the descending phase of
the solar cycle 24 is investigated. For this purpose, we used
instruments including GNSS receivers, ionosondes, and other
ground-based systems. During the distinct Carrington, rotations
are possible to observe a variety of ionospheric effects such as
ionization decreases and increases, development of plasma bubbles
and scintillation processes as a result of a combination of
processes including prompt penetration of electric field,
disturbance dynamo and the occurrence of high-intensity long
duration auroral activity. This study may be useful for
ionospheric modeling and Space Weather.",
conference-location = "Montr{\'e}al, Canada",
conference-year = "08-18 July",
urlaccessdate = "02 maio 2024"
}