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Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field
Rastogi, R. G.1; Chandra, H.1; Janardhan, P.1; Reinisch, B. W.2,3; Bisoi, Susanta Kumar4
2017-10-15
发表期刊ADVANCES IN SPACE RESEARCH
卷号60期号:8页码:1708-1715
摘要We connect the time sequence of changes in the IMF-Bz to the development of spread-F at an equatorial station Kwajalein on three different nights in November 2004, one during a geomagnetic quiet period and other two during geomagnetic disturbed periods. The chosen days show clear and smooth variations of IMF-Bz without any large fluctuations thereby enabling one to correlate changes in equatorial spread-F with corresponding changes in IMF-Bz. It is shown that a slow and continuous increase in the IMF-Bz over a duration of few hours has a similar effect on the equatorial ionosphere as of a sudden northward turning of the IMF-Bz in causing an electric field through the polar region and then to the equator. We conclude that the Spread-F at equatorial and low latitudes are due to echoes from ionization irregularities that arise due to the plasma instabilities generated by an eastward electric field on the large plasma density gradient in or below the base of the F-layer during any period of the night time along with the gravity driven Rayleigh-Taylor instability. (C) 2017 COSPAR. Published by Elsevier Ltd. All rights reserved.
文章类型Article
关键词Equatorial Ionosphere Equatorial Spread-f Geomagnetic Storms
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.asr.2017.06.020
关键词[WOS]TOTAL ELECTRON-CONTENT ; RADAR OBSERVATIONS ; IRREGULARITIES ; REGION ; IONOSPHERE ; REVERSAL ; BUBBLES
收录类别SCI
语种英语
WOS研究方向Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号WOS:000412620000012
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/20104
专题光学天文研究部
作者单位1.Phys Res Lab, Ahmadabad 380009, Gujarat, India
2.Lowell Digisonde Int, Lowell, MA 01854 USA
3.Univ Massachusetts, Ctr Atmospher Res, Lowell, MA USA
4.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing, Peoples R China
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Rastogi, R. G.,Chandra, H.,Janardhan, P.,et al. Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field[J]. ADVANCES IN SPACE RESEARCH,2017,60(8):1708-1715.
APA Rastogi, R. G.,Chandra, H.,Janardhan, P.,Reinisch, B. W.,&Bisoi, Susanta Kumar.(2017).Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field.ADVANCES IN SPACE RESEARCH,60(8),1708-1715.
MLA Rastogi, R. G.,et al."Post sunset equatorial spread-F at Kwajalein and interplanetary magnetic field".ADVANCES IN SPACE RESEARCH 60.8(2017):1708-1715.
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