@Article{AbduNoSaSoBaSo:2018:ImDiEl,
author = "Abdu, Mangalathayil Ali and Nogueira, Paulo Alexandre Bronzato and
Santos, Angela Machado dos and Souza, Jonas Rodrigues de and
Batista, Inez Staciarini and Sobral, Jos{\'e} Humberto Andrade",
affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Impact of disturbance electric fields in the evening on
prereversal vertical drift and spread F developments in the
equatorial ionosphere",
journal = "Annales Geophysicae",
year = "2018",
volume = "36",
number = "2",
pages = "609--620",
month = "Apr.",
keywords = "Ionosphere (ionospheric irregularities).",
abstract = "Equatorial plasma bubble/spread F irregularity occurrence can
present large variability depending upon the intensity of the
evening prereversal enhancement in the zonal electric field (PRE),
that is, the F region vertical plasma drift, which basically
drives the post-sunset irregularity development. Forcing from
magnetospheric disturbances is an important source of modification
and variability in the PRE vertical drift and of the associated
bubble development. Although the roles of magnetospheric
disturbance time penetration electric fields in the bubble
irregularity development have been studied in the literature, many
details regarding the nature of the interaction between the
penetration electric fields and the PRE vertical drift still lack
our understanding. In this paper we have analyzed data on F layer
heights and vertical drifts obtained from digisondes operated in
Brazil to investigate the connection between magnetic disturbances
occurring during and preceding sunset and the consequent
variabilities in the PRE vertical drift and associated equatorial
spread F (ESF) development. The impact of the prompt penetration
under-shielding eastward electric field and that of the
over-shielding, and disturbance dynamo, westward electric field on
the evolution of the evening PRE vertical drift and thereby on the
ESF development are briefly examined.",
doi = "10.5194/angeo-36-609-2018",
url = "http://dx.doi.org/10.5194/angeo-36-609-2018",
issn = "0992-7689",
language = "en",
targetfile = "abdu_impact.pdf",
urlaccessdate = "27 abr. 2024"
}