@Article{CarrascoBatiSobrAbdu:2017:SpMoOv,
author = "Carrasco, Alexander Jose and Batista, Inez Staciarini and Sobral,
Jos{\'e} Humberto Andrade and Abdu, Mangalathayil Ali",
affiliation = "{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 = "Spread F modeling over Brazil",
journal = "Journal of Atmospheric and Solar-Terrestrial Physics",
year = "2017",
volume = "161",
pages = "98--104",
month = "Aug.",
keywords = "Plasma bubblesIonospheric irregularitiesGeomagnetic conjugate
points.",
abstract = "Based on a numerical model developed by Carrasco et al. (2014),
the dynamics and morphology of ionospheric plasma bubbles for both
magnetic hemispheres over Brazil are examined. Observational
results show that the post sunset maximum velocity of the
pre-reversal vertical drift velocity, VP, has different values at
the conjugate points. This information on the asymmetry of the
vertical drift or zonal electric field is used in the simulation
of bubbles over Brazilian sector. The simulations were conducted
considering two different cases: (a) simulation of
trans-equatorial bubble neglecting the meridional winds, and (b)
considering the effect of meridional winds. In case (a) the bubble
development is symmetric in relation to the magnetic equator,
while in case (b) we raise the conjecture of a possible asymmetry.
The simulation shows that the trans-equatorial bubbles may develop
between ±30° of latitude and present internal structures of
different sizes and shapes. In addition, three spatial
perspectives of the bubbles are displayed, where each perspective
reveals interesting aspects of the bubble development.",
doi = "10.1016/j.jastp.2017.06.015",
url = "http://dx.doi.org/10.1016/j.jastp.2017.06.015",
issn = "1364-6826",
language = "en",
targetfile = "carrasco_spread.pdf",
urlaccessdate = "26 abr. 2024"
}