DOI: 10.1002/2015GL063493
论文题名: A case study on ionospheric scintillations at low latitude associated with a plasma blob observed in situ
作者: Wang Z. ; Shi J.K. ; Torkar K. ; Wang G.J. ; Wang X.
刊名: Geophysical Research Letters
ISSN: 0094-8819
EISSN: 1944-8550
出版年: 2015
卷: 42, 期: 7 起始页码: 2109
结束页码: 2114
语种: 英语
英文关键词: amplitude scintillation
; low-latitude ionosphere
; plasma blob observed in situ
Scopus关键词: F region
; Ionosphere
; Ionospheric measurement
; Amplitude scintillation
; Equatorial plasma bubble
; In-situ measurement
; Ion density
; Ionospheric plasmas
; Ionospheric scintillation
; Low latitudes
; Low-latitude ionospheres
; Scintillation
; ionosphere
; latitude
; particle motion
; plasma
英文摘要: In general, ionospheric scintillations at low latitude are considered as signatures of equatorial plasma bubbles (depletions). However, some authors considered that scintillations may also be associated with plasma blobs (enhancements), but there was no in situ measurement hitherto to confirm it. We performed a case study on the concurrent observation of an ionospheric plasma blob with in situ measurements by ROCSAT-1 (i.e. Formosa satellite-1) and of GPS amplitude scintillations in the low-latitude ionosphere on 1 June 2003. The blob measured in situ had a scale size of about 800 km in the F layer, and the ion density inside the blob was severely disturbed. Amplitude scintillation with S4 > 0.3 was observed concurrently in the same longitude range as the blob measured. This case study provides evidence of simultaneously observed GPS amplitude scintillations and a blob in situ, and it confirms that scintillations can be associated with plasma blobs in the low-latitude ionosphere. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928696696&doi=10.1002%2f2015GL063493&partnerID=40&md5=e646ca52ad58a3bb120bbe817f3d4023
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8435
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Wang Z.,Shi J.K.,Torkar K.,et al. A case study on ionospheric scintillations at low latitude associated with a plasma blob observed in situ[J]. Geophysical Research Letters,2015-01-01,42(7).