%0 Journal Article
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%X We present the results of a comparative study of the equatorial spread F (ESF) and the F layer critical parameter, the base height of the F layer bottomside (h¡äF) over the two equatorial sites, Ho Chi Minh City ¨C HCM (dip latitude: 2.9¡ãN) in Vietnam and Sao Luis ¨C SL (dip latitude: 2¡ãS) in Brazil. The study utilizes simultaneous data collected by a CADI at HCM and a digisonde at SL during the year 2002 with the monthly mean solar 10.7 cm flux (F10.7) varying from 120 to 185. This study focuses on the quiet time seasonal behavior of the F layer parameters in the two widely separated longitude sectors, and addresses the question as to what can we learn from such comparative studies with respect to the ambient ionospheric and thermospheric parameters that are believed to control the ESF generation and hence its longitudinal occurrence pattern. The observed differences/similarities in the diurnal and seasonal patterns of the F Layer height vis-¨¤-vis the ESF occurrences are evaluated in terms of the known longitudinal differences in the F layer heights, thermospheric meridional winds and the geomagnetic peculiarities of the two sites.
%@mirrorrepository sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
%8 Feb.
%N 3
%T Longitudinal differences in the equatorial spread F characteristics between Vietnam and Brazil
%@secondarytype PRE PI
%K Equatorial ionosphere, Equatorial spread F, F layer heights, Meridional winds, Longitudinal difference, Vietnam and Brazil.
%@usergroup administrator
%@usergroup banon
%@usergroup marciana
%@usergroup simone
%@group DAE-CEA-INPE-MCT-BR
%@group DAE-CEA-INPE-MCT-BR
%3 longitudinal differences.pdf
%@secondarykey INPE--PRE/
%@secondarymark B3_CIÊNCIAS_BIOLÓGICAS_I B1_ENGENHARIAS_III B2_ENGENHARIAS_IV B1_GEOCIÊNCIAS A2_INTERDISCIPLINAR
%@issn 0273-1177
%2 sid.inpe.br/mtc-m19@80/2009/12.10.15.44.23
%@affiliation Ho Chi Minh City Institute of Physics, Vietnamese Academy of Science and Technology
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation The University of Western Ontario
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B Advances in Space Research
%P 351-360
%4 sid.inpe.br/mtc-m19@80/2009/12.10.15.44
%@documentstage not transferred
%D 2010
%V 45
%@doi 10.1016/j.asr.2009.08.019
%A Hoang, Thai Lan,
%A Abdu, Mangalathayil Ali,
%A MacDougall, John,
%A Batista, Inez Staciarini,
%@dissemination WEBSCI; PORTALCAPES; MGA; COMPENDEX.
%@area CEA