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Electron temperature enhancements in nighttime equatorial ionosphere under the occurrence of plasma bubbles
de Meneses, F. C.; Klimenko, M. V.; Klimenko, V. V.; Alam Kherani, E.; Muralikrishna, P.; Xu, Jiyao; Hasbi, A. M.; de Meneses, FC (reprint author), Chinese Acad Sci, CSSAR, State Key Lab Space Weather, POB 8701, Beijing 100080, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
2013
Volume103Pages:36-47
ISSN1364-6826
Language英语
KeywordElectron Temperature Plasma Bubbles Equatorial Ionosphere Rocket Measurements
AbstractSimultaneous in-situ measurements of electron density and temperature in the nighttime equatorial region were performed by a rocket experiment launched under solar minimum and geomagnetic quiet conditions from the station of Alcantara (2.24 degrees S; 44.24 degrees W), Brazil, on Dec. 18, 1995, 21:17 LT. These measurements detected during the upleg flight a large overheated area around the base of density profile. The presence of plasma bubbles was revealed during the downleg phase, as well as temperature enhancements detected preferentially at altitudes where plasma depletions are found. It was assumed that the region traversed by the rocket during the downleg was preceded before the bubble's onset by a large overheating as observed during the upleg flight. Analyzing this framework under the light of the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP), as well as a 2D numerical code that simulate the growth of an instability and the evolution of thermal energy inside a bubble, we found that despite an overheated area in the F-region bottomside can disturb the electron density profile around the altitude interval where such heat is deposited, it seems not have a direct influence over parameters responsible for the bubble onset. Additionally, the phenomenon of the intra-bubble thermal enhancement could be formed due to the convection of hot-electron fluid transported from the overheated region surrounding the base of the F-region to upper altitudes by the underlying mechanism of bubble generation. (C) 2013 Elsevier Ltd. All rights reserved.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5008
Collection空间科学部
Corresponding Authorde Meneses, FC (reprint author), Chinese Acad Sci, CSSAR, State Key Lab Space Weather, POB 8701, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
de Meneses, F. C.,Klimenko, M. V.,Klimenko, V. V.,et al. Electron temperature enhancements in nighttime equatorial ionosphere under the occurrence of plasma bubbles[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2013,103:36-47.
APA de Meneses, F. C..,Klimenko, M. V..,Klimenko, V. V..,Alam Kherani, E..,Muralikrishna, P..,...&de Meneses, FC .(2013).Electron temperature enhancements in nighttime equatorial ionosphere under the occurrence of plasma bubbles.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,103,36-47.
MLA de Meneses, F. C.,et al."Electron temperature enhancements in nighttime equatorial ionosphere under the occurrence of plasma bubbles".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 103(2013):36-47.
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