%0 Journal Article
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@nexthigherunit 8JMKD3MGPCW/3ETL868
%@archivingpolicy denypublisher denyfinaldraft24
%@issn 1364-6826
%@resumeid
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JGTE
%@usergroup administrator
%@usergroup alexandra
%@usergroup marciana
%3 semiannual oscillation.pdf
%@dissemination WEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX.
%@secondarykey INPE-11020-PRE/6476
%A Buriti, R. A.,
%A Takahashi, H.,
%A Gobbi, Delano,
%A Medeiros, F. de,
%A Nepomuceno, A.  A.,
%A Lima, L. M.,
%T Semiannual oscillation of the mesospheric airglow at 7.4 S during the PSMOS observation period of 1998-2001
%B Journal of Atmospheric and Solar-Terrestrial Physics
%D 2004
%V 66
%N 6-9
%P 567-572
%8 Apr-Jun.
%2 sid.inpe.br/jeferson/2004/07.26.16.50.02
%4 sid.inpe.br/jeferson/2004/07.26.16.50
%K Airglow, Rotation temperature, Semiannual oscillation, Tide waves, Mesosphere.
%X The intensities of the upper mesospheric airglow emissions, OI5577, O2b(0,1), and OH(6,2), together with the rotational temperature of the OH band, have been observed at an equatorial station, São João do Cariri (7.4 S, 36.5 W), during the PSMOS observation period from 1998 to 2001. All of the emissions show distinct semiannual variations, maxima at the equinoxes and minima at the solstices. The October-November maximum of OI5577 intensity is larger than that of March-April, and the opposite is true for the case of OH(6,2). Also, there are strong OI5577 and O2b intensity depletions during a short period in December, absent in the case of the OH emission. Harmonic analysis of the time series suggests that atmospheric tidal oscillations play an important role in the observed semiannual oscillation.
%@language English
%@copyholder SID/SCD
%@secondarytype PRE PI
%@area CEA
%@group DAE-INPE-MCT-BR
%@affiliation Departamento de Física/CCT, Universidade Federal de Campina Grande, Av. Aprigio Veloso, 882, Campina Grande, PB, Brazil,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE), S.J. Campos, SP, Brazil,
%@affiliation Departamento de Física/CCT, Universidade Estadual da Paraíba, C. Grande, PB, Brazil,