Abstract Based on observation data of various sampling rates (10 Hz, 1 Hz and 30 s) of 19 continuous GNSS stations, this paper analyzes the impact of the nuclear explosion of Democratic People’s Republic of Korea on the crustal deformation field in northeast China. The nearest GNSS site from the nuclear explosion is JLCB. The static displacement analysis results show that the JLCB station does not show obvious co-seismic deformation, which is consistent with the results of forward modeling based on the uniform semi-infinite elastic space dislocation model. The GNSS strain results show that the principle strain has a slight adjustment in the northeast region caused by the nuclear explosion; the adjustment was within 10-8, which does not cause the variation of the surface strain in the region. The results of high frequency GNSS dynamic deformation show that this event does not cause obvious dynamic deformation at the JLCB station. In addition, the high frequency results are affected by the multipath, which may cause centimeter-level disturbance. By the method of sidereal filtering, the influence of multipath can be suppressed, and the dynamic deformation results with higher precision and better reliability can be obtained.
WANG Yuebing,GAN Weijun,ZHANG Rui et al. The Impact of the Nuclear Explosion of Democratic People’s Republic of Korea in 2017 on the Deformation Field in Northeast China[J]. jgg, 2020, 40(1): 11-16.
WANG Yuebing,GAN Weijun,ZHANG Rui et al. The Impact of the Nuclear Explosion of Democratic People’s Republic of Korea in 2017 on the Deformation Field in Northeast China[J]. jgg, 2020, 40(1): 11-16.
