DOI: 10.1002/grl.50398
论文题名: Ionospheric response to earthquakes of different magnitudes: Larger quakes perturb the ionosphere stronger and longer
作者: Astafyeva E. ; Shalimov S. ; Olshanskaya E. ; Lognonné P.
刊名: Geophysical Research Letters
ISSN: 0094-9108
EISSN: 1944-8839
出版年: 2013
卷: 40, 期: 9 起始页码: 1675
结束页码: 1681
语种: 英语
英文关键词: coseismic ionospheric perturbations
; earthquakes
; GPS TEC
; N-wave
Scopus关键词: GPS TEC
; Ionospheric perturbation
; Ionospheric total electron content
; Moment magnitudes
; N-wave
; Seismic information
; Shallow earthquakes
; Total electron content
; Ionosphere
; Ionospheric measurement
; Production platforms
; Earthquakes
; coseismic process
; earthquake magnitude
; electron
; fault
; GPS
; ionosphere
; perturbation
; seismic moment
英文摘要: Recently, it has been shown that the ionosphere is capable of showing images of seismic fault shortly after an earthquake. This gives rise to the idea of retrieval of seismic information from ionospheric observations. As the first step toward such inversion, here we study distinctive features of ionospheric response to shallow earthquakes, both submarine and inland, of moment magnitudes Mw7.2-9.1. Using GPS measurements of the ionospheric total electron content, we show that: (1) the amplitude of coseismic total electron content variations in the near-field is larger after more powerful earthquakes, and (2) stronger earthquakes (M > 7.9) are in general characterized by a longer negative phase in coseismic perturbations. Key Pointslarger earthquakes generate ionospheric perturbations of larger amplitudeCIDs caused by M>8.0 quakes represent N-waves with ~20-40 min negative phase ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879111427&doi=10.1002%2fgrl.50398&partnerID=40&md5=0eef8fe67345aa1ab0d22d2f83003fa5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6372
Appears in Collections: 气候减缓与适应
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作者单位: Institut de Physique du Globe de Paris, Univ. Paris Diderot, UMR 7154 CNRS, 75013 Paris, France
Recommended Citation:
Astafyeva E.,Shalimov S.,Olshanskaya E.,et al. Ionospheric response to earthquakes of different magnitudes: Larger quakes perturb the ionosphere stronger and longer[J]. Geophysical Research Letters,2013-01-01,40(9).