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Wang X L，Jin P，Zhu H F，Xu H L，Xu X. 2021. The conjunct effects of ISO and CLVD sources in underground explosions on the spectral null in Rg waves. Acta Seismologica Sinica，43（6）：745−752. DOI: 10.11939/jass.20200197
Citation: Wang X L，Jin P，Zhu H F，Xu H L，Xu X. 2021. The conjunct effects of ISO and CLVD sources in underground explosions on the spectral null in Rg waves. Acta Seismologica Sinica，43（6）：745−752. DOI: 10.11939/jass.20200197
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The conjunct effects of ISO and CLVD sources in underground explosions on the spectral null in Rg waves

  • 1.

    CTBT Beijing National Data Center and Beijing Radionuclide Laboratory，Beijing 100085，China

  • 2.

    Northwest Institute of Nuclear Technology，Xi’an 710024，China

  • 3.

    University of Science and Technology of China，Hefei 230026，China

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  • Received Date: December 02, 2020
  • Revised Date: May 17, 2021
  • Available Online: November 22, 2021
  • Published Date: December 30, 2021
    Graphical Abstract
    • Abstract
  • The compensated linear vector dipole （CLVD） source is usually induced by underground explosions and could lead to a null in the Rg spectra. There is a theoretical scale between the null frequency and the depth of the CLVD source. Therefore we can estimate the depth of underground explosions with the null frequency. However, this relationship is based on simply considering the CLVD source while the conjunct effects of ISO and CLVD sources are neglected. This study researches the conjunct effects of ISO and CLVD sources in underground explosions on the spectral null in Rg waves by numerical calculation of the Rg spectra with seismology theory of surface waves. The results indicate that the null in mixed signals is quite different from the results of single CLVD source. Thus the null frequency of Rg waves is not simply corresponding to the theoretical value in practical underground explosions and it is improper to estimate the depth of explosions by directly applying the theoretical formula.
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    • References (16)
  • 何永锋,陈晓非,何耀峰,靳平. 2005. 地下爆炸Rg波低谷点激发机理[J]. 地球物理学报,48(3):643–648. doi: 10.3321/j.issn:0001-5733.2005.03.023
    He Y F,Chen X F,He Y F,Jin P. 2005. Generation of null in Rg wave by underground explosions[J]. Chinese Journal of Geophysics,48(3):643–648 (in Chinese). doi: 10.1002/cjg2.697
    徐恒垒,靳平,倪四道,刘文学,王红春,李欣. 2011. 谱元法数值模拟地表起伏对补偿线性矢量偶极源Rg波低谷点的影响[J]. 地球物理学报,54(11):2831–2837. doi: 10.3969/j.issn.0001-5733.2011.11.013
    Xu H L,Jin P,Ni S D,Liu W X,Wang H C,Li X. 2011. Investigation of surface fluctuation effects on the spectral null of Rg waves generated by CLVD source with spectral element method simulation[J]. Chinese Journal of Geophysics,54(11):2831–2837 (in Chinese).
    Aki K, Richards P G. 1980. Quantitative Seismology[M]. San Francisco: W. H. Freeman: 319–322.
    Baker G E,Stevens J L,Xu H M. 2012a. Explosion shear-wave generation in high-velocity source media[J]. Bull Seismol Soc Am,102(4):1301–1319. doi: 10.1785/0120110119
    Baker G E,Stevens J L,Xu H M. 2012b. Explosion shear-wave generation in low-velocity source media[J]. Bull Seismol Soc Am,102(4):1320–1334. doi: 10.1785/0120110165
    Denny M D,Johnson L R. 1991. The explosion seismic source function:Models and scaling laws reviewed[J]. Explo Source Phenomenol,65:1–24.
    Gupta I N,Chan W W,Wagner R A. 1992. A comparison of regional phases from underground nuclear explosions at east kazakh and nevada test sites[J]. Bull Seismol Soc Am,82(1):352–382.
    Gupta I N,Zhang T R,Wagner R A. 1997. Low-frequency Lg from NTS and kazakh nuclear explosions:Observations and interpretation[J]. Bull Seismol Soc Am,87(5):1115–1125.
    Jin P,Xu H L,Wang H C,Pan C Z,Xu X,Wang X L. 2017. Secondary seismic sources behind amplitude ratios between the first 2016 and 2013 North Korean nuclear tests[J]. Geophys J Int,211(1):322–334. doi: 10.1093/gji/ggx289
    Massé R P. 1981. Review of seismic source models for underground nuclear explosions[J]. Bull Seismol Soc Am,71(4):1249–1268. doi: 10.1785/BSSA0710041249
    Mueller R A,Murphy J R. 1971. Seismic characteristics of underground nuclear detonations:Part I. Seismic spectrum scaling[J]. Bull Seismol Soc Am,61(6):1675–1692. doi: 10.1785/BSSA0610061675
    Patton H J,Taylor S R. 1995. Analysis of Lg spectral ratios from NTS explosions:Implications for the source mechanisms of spall and the generation of Lg waves[J]. Bull Seismol Soc Am,85(1):220–236.
    Patton H J,Taylor S R. 2011. The apparent explosion moment:Inferences of volumetric moment due to source medium damage by underground nuclear explosions[J]. J Geophys Res,116(B3):B03310.
    Taylor S R, Patton H J. 2013. Can teleseismic mb be affected by rock damage around explosions?[J] Geophys Res Lett, 40（1）: 100–104.
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