@Article{MedeirosPWFTBPB:2018:CaStMe,
author = "Medeiros, Amauri Fragoso and Paulino, Igo and Wrasse, Cristiano
Max and Fechine, Joaquim and Takahashi, Hisao and Bageston,
Jos{\'e} Valentin and Paulino, Ana Roberta and Buriti, Ricardo
Arlen",
affiliation = "{Universidade Federal de Campina Grande (UFCG)} and {Universidade
Federal de Campina Grande (UFCG)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade Federal de Campina
Grande (UFCG)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal de Campina Grande (UFCG)} and {Universidade
Federal de Campina Grande (UFCG)}",
title = "Case study of mesospheric front dissipation observed over the
northeast of Brazil",
journal = "Annales Geophysicae",
year = "2018",
volume = "36",
number = "2",
pages = "311--319",
month = "Mar.",
keywords = "Atmospheric composition and structure (airglow and aurora),
meteorology and atmospheric dynamics (middle atmosphere dynamics,
waves and tides).",
abstract = "On 3 October 2005 a mesospheric front was observed over Sao Joao
do Cariri (7.4 degrees S, 36.5 degrees W). This front propagated
to the northeast and appeared in the airglow images on the west
side of the observatory. By about 1.5 h later, it dissipated
completely when the front crossed the local zenith. Ahead of the
front, several ripple structures appeared during the dissipative
process of the front. Using coincident temperature profile from
the TIMED/SABER satellite and wind profiles from a meteor radar at
Sao Joao do Cariri, the background of the atmosphere was
investigated in detail. On the one hand, it was noted that a
strong vertical wind shear in the propagation direction of the
front produced by a semidiunal thermal tide was mainly responsible
for the formation of duct (Doppler duct), in which the front
propagated up to the zenith of the images. On the other hand, the
evolution of the Richardson number as well as the appearance of
ripples ahead of the main front suggested that a presence of
instability in the airglow layer that did not allow the
propagation of the front to the other side of the local zenith.",
doi = "10.5194/angeo-36-311-2018",
url = "http://dx.doi.org/10.5194/angeo-36-311-2018",
issn = "0992-7689",
language = "en",
targetfile = "medeiros_case.pdf",
urlaccessdate = "27 abr. 2024"
}