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On the role of tidal winds in the descending of the high type of sporadic layer (Es-h)
Alternative TitleWOS:000533504800006;20195107882934
Conceicao-Santos, Fredson; Muella, Marcio T. A. H.; Resende, Laysa C. A.; Fagundes, Paulo R.; Andrioli, Vania F.; Batista, Paulo P.; Carrasco, Alexander J.
Source PublicationADVANCES IN SPACE RESEARCH
2020
Volume65Issue:9Pages:2131-2147
DOI10.1016/j.asr.2019.11.024
ISSN0273-1177
Language英语
KeywordSporadic layers Tidal winds E-region model Low-latitude ionosphere TIDES VARIABILITY
AbstractAs the prevailing tidal winds in the E region are generated by heating mechanisms, the dynamics of Es layers impacted by solar tides is a relevant theme in the space weather studies. This paper aims to identify the tidal wind component involved in the mechanism of formation and descending of the high type of sporadic layer (Es-h). The Es-h layers observed at altitudes between around 120 and 150 km in the Brazilian low latitude stations of Jatai and Sao Jose dos Campos during the months of April, June, September and December of 2016 are used in this analysis. The height variability and altitude descent of the Es-h layers are analyzed from the h'Es parameter obtained by ionosonde data. In this study, the observational data are compared with the simulations generated by an extended version of the Ionospheric E-Region Model (MIRE). At higher altitudes in the E region, the results show that the prevailing tidal pattern and wind direction controlling the Es-h layer formation and descent are different depending on month: (a) in April and June the zonal wind component and the associated semidiurnal tidal oscillations prevail, with some differences in terms of time of occurrence and descending speeds, and (b) in September and December the diurnal tidal periodicities become dominant, and both the meridional and zonal wind components seem to control the descending of the Es(h )layers. Since the role of the tidal periodicities and wind directions changed depending on the month, the results suggest a possible seasonal tidal wind pattern, which is not well understood from the present study but requires further investigation. Other relevant aspects of the observations and the modeling are highlighted and discussed. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7695
Collection中国科学院国家空间科学中心
Affiliation1.[Conceicao-Santos, Fredson
2.Muella, Marcio T. A. H.
3.Fagundes, Paulo R.] Univ Vale Paraiba UNIVAP, Lab Fis & Astron, Sao Jose Dos Campos, Brazil
4.Inst Fed Educ Ciencia & Tecnol Maranhao IFMA, Acailandia, Brazil
5.[Resende, Laysa C. A.
6.Andrioli, Vania F.
7.Batista, Paulo P.] Inst Nacl Pesquisas Espaciais INPE, Div Aeron, Sao Jose Dos Campos, Brazil
8.[Resende, Laysa C. A.
9.Andrioli, Vania F.] Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
10.[Carrasco, Alexander J.] Univ Los Andes, Dept Fis, Merida, Venezuela
Recommended Citation
GB/T 7714
Conceicao-Santos, Fredson,Muella, Marcio T. A. H.,Resende, Laysa C. A.,et al. On the role of tidal winds in the descending of the high type of sporadic layer (Es-h)[J]. ADVANCES IN SPACE RESEARCH,2020,65(9):2131-2147.
APA Conceicao-Santos, Fredson.,Muella, Marcio T. A. H..,Resende, Laysa C. A..,Fagundes, Paulo R..,Andrioli, Vania F..,...&Carrasco, Alexander J..(2020).On the role of tidal winds in the descending of the high type of sporadic layer (Es-h).ADVANCES IN SPACE RESEARCH,65(9),2131-2147.
MLA Conceicao-Santos, Fredson,et al."On the role of tidal winds in the descending of the high type of sporadic layer (Es-h)".ADVANCES IN SPACE RESEARCH 65.9(2020):2131-2147.
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