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题名: The influence of tidal winds in the formation of blanketing sporadic e-layer over equatorial Brazilian region
作者: Resende, Laysa Cristina Araujo; Batista, Inez Staciarini; Denardini, Clezio Marcos; Batista, Paulo Prado; Carrasco, Alexander José; Andrioli, Vânia Fátima; Moro, Juliano
作者部门: 空间科学部
通讯作者: Resende, Laysa Cristina Araujo (laysa.resende@inpe.br)
关键词: Equatorial aeronomy ; Blanketing Es layers ; Es layers model ; Tidal winds
刊名: Journal of Atmospheric and Solar-Terrestrial Physics
ISSN号: 1364-6826
出版日期: 2017
收录类别: SCI ; EI
英文摘要: This work analysis the blanketing sporadic layers (Esb) behavior over São Luís, Brazil (2° 31' S, 44° 16' W, dip: -4.80) which is classified as a transition region between equatorial and low-latitude. Hence, some peculiarities can appear as Esboccurrence instead of the common Esq, which is a non-blanketing irregularity layer. The analysis presented here was obtained using a modified version of a theoretical model for the E region (MIRE), which computes the densities of the metallic ions (Fe+and Mg+) and the densities of the main molecular ions (NO+, O2+, N2+) by solving the continuity and momentum equations for each one of them. In that model, the Es layer physics driven by both diurnal and semidiurnal tidal winds are taken into account and it was extended in height coverage by adding a novel neutral wind model derived from the all-sky meteor radar measurements. Thus, we provide more trustworthy results related to the Es layer formation in the equatorial region. We verified the contribution of each tidal wind component to the Esblayer formation in this equatorial region. Additionally, we compared the Es layer electron density computed by MIRE with the data obtained by using the blanketing frequency parameter (fbEs) deduced from ionograms. The results show that the diurnal component of the tidal wind is more important in the Esblayer formation whereas the semidiurnal component has a little contribution in our simulations. Finally, it was verified that the modified MIRE presented here can be used to study the Esblayers occurrence over the equatorial region in the Brazilian sector. © 2017 Elsevier Ltd.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6134
Appears in Collections:空间科学部_期刊论文

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Recommended Citation:
Resende, Laysa Cristina Araujo,Batista, Inez Staciarini,Denardini, Clezio Marcos,et al. The influence of tidal winds in the formation of blanketing sporadic e-layer over equatorial Brazilian region[J]. Journal of Atmospheric and Solar-Terrestrial Physics,2017.
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