@InProceedings{LimaAlveBatiClem:2009:ShTiVa,
author = "Lima, Lourivaldo M. and Alves, Edvaldo O. and Batista, Paulo Prado
and Clemesha, Barclay Robert",
affiliation = "{Universidade Estadual da Para{\'{\i}}ba} and {Universidade
Estadual da Para{\'{\i}}ba} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Short time variatoins of diurnal tides associated with nonlinear
interactions with planetary waves in the MLT region at 7.4°S",
booktitle = "Proceedings...",
year = "2009",
organization = "Iaga, 2009.",
keywords = "Diurnal tides, Mesopsheric Dynamics, Nonlinear interactions.",
abstract = "Neutral winds obtained by meteor radar have been used to study the
dynamics of the equatorial MLT region. In this paper we have used
the wind measurements obtained from August 2004 to December 2006
over S{\~a}o Jo{\~a}o do Cariri (7.4° S, 36.5° W), Brazil. The
winds show long-term variations months as well as short time
fluctuations on time scales of few days. The spectral analysis of
the hourly wind series, besides presenting strong diurnal and
semidiurnal power, also shows distinct power spectrum with peaks
associated with low-frequency oscillations (2, 5, 6-7, 10, 16 day
periods). Series of amplitudes of the tidal components were
obtained and also showed periodic variability, which are
associated with planetary wave occurrence with the same periods as
the wind amplitudes. This association has been investigated and is
discussed in terms of the proposed non-linear interaction between
tides and planetary waves.",
conference-location = "Sopron, Hungary",
conference-year = "23-30 Aug.",
language = "en",
urlaccessdate = "01 maio 2024"
}