@Article{BuritiHBPPGCM:2020:DiMeTi,
author = "Buriti, Ricardo A. and Hocking, Wayne and Batista, Paulo Prado and
Paulino, Igo and Paulino, Ana R. and Garbanzo-Salas, Marcial and
Clemesha, Barclay Robert and Medeiros, Amauri F.",
affiliation = "{Universidade Federal de Campina Grande (UFCG)} and {University of
Western Ontario} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade Federal de Campina Grande (UFCG)} and
{Universidade Estadual da Para{\'{\i}}ba (UEPB)} and
{Universidad of Costa Rica} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Universidade Federal de Campina Grande
(UFCG)}",
title = "Diurnal mesospheric tidal winds observed simultaneously by meteor
radars in Costa Rica (10 degrees N, 86 degrees W) and Brazil (7
degrees S, 37 degrees W)",
journal = "Annales Geophysicae",
year = "2020",
volume = "38",
number = "6",
pages = "1247--1256",
month = "Dec.",
abstract = "This paper presents a study of diurnal tidal winds observed
simultaneously by two meteor radars located on each side of the
Equator in the equatorial region. The radars were located in Santa
Cruz, Costa Rica (10.3 degrees N, 85.6 degrees W) (hereafter CR)
and Sao Joao do Cariri, Brazil (7.4 degrees S, 36.5 degrees W)
(hereafter CA). The distance between the sites is 5800 km.
Harmonic analysis has been used to obtain amplitudes and phases
(hour of peak amplitude) for diurnal, semidiurnal and terdiurnal
tides between 82 and 98 km altitude, but in this work we
concentrate on the diurnal component. The period of observation
was from April 2005 to January 2006. The results were compared to
the Global Scale Waves Model (GSWM-09). Magnitudes of zonal and
meridional amplitudes from November to January for CR were quite
different from the predictions of the model. Concerning phases,
the agreement between model and radar meridional tidal phases at
each site was good, and a vertical wavelength of 24 km for the
diurnal tide was observed practically every month, although on
some occasions determination of the vertical wavelength was
difficult, especially for the zonal component, due to nonlinear
phase variations with height. For the diurnal zonal amplitude,
there were notable differences between the two sites. We attribute
this site-to-site difference of the diurnal zonal amplitude to the
nonmigrating component of the tide and propose that an anomaly was
present in the troposphere in the winter (Northern Hemisphere) of
2005-2006 which produced substantial longitudinal variation.",
doi = "10.5194/angeo-38-1247-2020",
url = "http://dx.doi.org/10.5194/angeo-38-1247-2020",
issn = "0992-7689",
language = "en",
targetfile = "buriti_diurnal.pdf",
urlaccessdate = "25 abr. 2024"
}