DOI: 10.1002/2016GL068497
论文题名: On the infrasound detected from the 2013 and 2016 DPRK's underground nuclear tests
作者: Assink J.D. ; Averbuch G. ; Smets P.S.M. ; Evers L.G.
刊名: Geophysical Research Letters
ISSN: 0094-9145
EISSN: 1944-8876
出版年: 2016
卷: 43, 期: 7 起始页码: 3526
结束页码: 3533
语种: 英语
英文关键词: infrasound
; propagation modeling
; seismoacoustic coupling
; Test-Ban Treaty verification
Scopus关键词: Data flow analysis
; Seismology
; Circumpolar vortex
; Explosion depth
; Infrasound
; International monitoring systems
; Propagation modeling
; Republic of Korea
; Russian federation
; Seismic energy
; Testing
英文摘要: The underground nuclear tests by the Democratic People's Republic of Korea (DPRK) generated atmospheric infrasound both in 2013 and 2016. Clear detections were made in the Russian Federation (I45RU) and Japan (I30JP) in 2013 at stations from the International Monitoring System. Both tropospheric and stratospheric refractions arrived at the stations. In 2016, only a weak return was potentially observed at I45RU. Data analysis and propagation modeling show that the noise level at the stations and the stratospheric circumpolar vortex were different in 2016 compared to 2013. As the seismic magnitude of the 2013 and 2016 nuclear test explosions was comparable, we hypothesize that the 2016 test occurred at least 1.5 times deeper. In such a case, less seismic energy would couple through the lithosphere-atmosphere interface, leading to less observable infrasound. Since explosion depth is difficult to estimate from seismic data alone, this motivates a synergy between seismics and infrasonics. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84964626536&doi=10.1002%2f2016GL068497&partnerID=40&md5=f2f6be68d80a99f09f4c5ac824529829
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10108
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: R and D Seismology and Acoustics Department, Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands
Recommended Citation:
Assink J.D.,Averbuch G.,Smets P.S.M.,et al. On the infrasound detected from the 2013 and 2016 DPRK's underground nuclear tests[J]. Geophysical Research Letters,2016-01-01,43(7).