DOI: 10.1002/2015GL064792
论文题名: Ionospheric disturbances in the vicinity of the Chelyabinsk meteoroid explosive disruption as inferred from dense GPS observations
作者: Perevalova N.P. ; Shestakov N.V. ; Voeykov S.V. ; Takahashi H. ; Guojie M.
刊名: Geophysical Research Letters
ISSN: 0094-9119
EISSN: 1944-8850
出版年: 2015
卷: 42, 期: 16 起始页码: 6535
结束页码: 6543
语种: 英语
英文关键词: Chelyabinsk meteoroid
; GPS TEC
; ionospheric disturbances
Scopus关键词: Damping
; Interferometry
; Ionosphere
; Ionospheric electromagnetic wave propagation
; Chelyabinsk meteoroid
; GPS TEC
; Interferometric techniques
; Ionospheric disturbance
; Propagation velocities
; Total electron content
; Total electron content units
; Velocity damping
; Ionospheric measurement
; anisotropy
; disturbance
; electron
; error analysis
; explosion
; explosive
; GPS
; interferometry
; ionosphere
; meteor
; Chelyabinsk [Chelyabinsk (ADS)]
; Chelyabinsk [Russian Federation]
; Russian Federation
英文摘要: The paper describes results of studying effects of total electron content (TEC) variations triggered by the Chelyabinsk meteoroid airburst as inferred from unique data of a dense GPS network located around the final part of the meteoroid atmospheric path. Well-pronounced TEC disturbances with an average period of about 10 min and amplitude of 0.07-0.5 TECU (total electron content unit, 1 TECU = 1016 el m-2) were detected. These disturbances were initiated by an ionospheric source activated about 5-6 min after the airburst. The disturbance velocity damping with time and distance from the airburst was revealed using a GPS interferometric technique. Several modes of TEC disturbances with propagation velocities ranging from 250 to 660 m/s were distinguished through the distance-time diagram analysis. The estimated position of ionospheric source of TEC disturbances is shifted 36 km southwestward from the airburst, which is most likely to be associated with the conjoint influence of TEC data errors, damping and anisotropy of TID propagation velocity. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941743428&doi=10.1002%2f2015GL064792&partnerID=40&md5=701bfcf21b514229b91128dcd302b317
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8735
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: Institute of Solar-Terrestrial Physics, SB RAS, Irkutsk, Russian Federation
Recommended Citation:
Perevalova N.P.,Shestakov N.V.,Voeykov S.V.,et al. Ionospheric disturbances in the vicinity of the Chelyabinsk meteoroid explosive disruption as inferred from dense GPS observations[J]. Geophysical Research Letters,2015-01-01,42(16).