%0 Journal Article
%4 sid.inpe.br/mtc-m21b/2017/04.18.13.11
%2 sid.inpe.br/mtc-m21b/2017/04.18.13.11.21
%@doi 10.1002/2016JA023724
%@issn 2169-9380
%T F-3 layer development during quiet and disturbed periods as observed at conjugate locations in Brazil: the role of the meridional wind
%D 2017
%8 Feb.
%9 journal article
%A Batista, Inez Staciarini,
%A Candido, Claudia Maria Nicoli,
%A Souza, Jonas Rodrigues de,
%A Abdu, Mangalathayil Ali,
%A Araújo, R. C. de,
%A Resende, Laysa Cristina Araújo,
%A Santos, A. M.,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade Federal de Roraima (UFRR)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress inez.batista@inpe.br
%@electronicmailaddress claudia.candido@inpe.br
%@electronicmailaddress jonas.souza@inpe.br
%@electronicmailaddress ma.abdu@inpe.br
%@electronicmailaddress
%@electronicmailaddress laysa@dae.inpe.br
%B Journal of Geophysical Research: Space Physics
%V 122
%N 2
%P 2361-2373
%X In this work we use ionospheric data from two low-latitude stations located north and south of the geomagnetic equator, at approximately the same magnetic longitude, in order to study the occurrence of the F-3 layer. The location of the stations being at almost geomagnetically conjugate points is such that the effects of the electric field/vertical plasma drift and diffusion will be almost symmetric around the magnetic equator. Under this configuration it is possible to deduce the effect of meridional wind in the F-3 layer occurrence. Our results show that during the December solstice the layer will be present at the Southern Hemisphere (SH) location in 97% of the days and in the Northern Hemisphere (NH) location in only 4% of the days. In the June solstice the situation is reversed with the occurrence in the NH being 82% and 16% in the SH. For the March equinox the occurrence is low at both locations (4% in NH and 7% in SH), being mainly present during magnetically disturbed periods. The analysis of the effective meridional wind based on the Horizontal Wind Model and on the asymmetry of the F layer peak height observed at the two locations confirms the ubiquitous role of the wind in the F-3 layer formation and/or persistence during both quiet and disturbed periods. The B0 parameter, that is a measure of the thickness of the bottomside F region profile, revealed to be a good proxy for the F-3 layer occurrence.
%@language en
%3 batista_f3.pdf