@InProceedings{LimaBatiPaul:2018:MeRaTe,
author = "Lima, Lourivaldo and Batista, Paulo Prado and Paulino, Ana
Roberta",
affiliation = "{Universidade Estadual da Para{\'{\i}}ba (UEPB)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade Estadual
da Para{\'{\i}}ba (UEPB)}",
title = "Meteor radar temperatures at 7.4°s and 22.7°s",
year = "2018",
organization = "Cospar Scientific Assembly, 42.",
abstract = "Mesospheric temperatures at 90 km height have been estimated from
meteor radar measurements obtained at Cachoeira Paulista (22.7°S,
45°W) and S{\~a}o Jo{\~a}o do Cariri (7.4°S, 36.5°W). The
temperatures were estimated using local models for temperature
gradient and pressure and showed a good agreement with
temperatures from Sounding of the Atmosphere by Broadband Emission
Radiometry (SABER) over both sites. The temperatures by gradient
technique show larger day to day variations than those estimated
by pressure method and from SABER data. Spectral analysis have
revealed the presence of annual (AO), semiannual (SAO) and
quadrennial (QAO) periods on temperatures estimated by two
techniques and from SABER data at both sites. The amplitude of the
SAO over Cachoeira Paulista on temperatures by pressure method
exceeds those estimated by gradient technique as well as the SABER
temperatures. Over S{\~a}o Jo{\~a}o do Cariri, the SAO amplitude
on temperature by pressure method also exceeds those derived by
gradient technique and from SABER data. The SAO temperatures are
in phase with each other, with maximums around equinoxes, just
when the phase of SAO on mean zonal winds around 81 km is westward
over both sites, however, the maximums in the westward winds
happens before the maximum temperatures.",
conference-location = "Pasadena, California",
conference-year = "14-22 July",
language = "en",
targetfile = "lima_meteor.pdf",
urlaccessdate = "29 mar. 2024"
}