Investigation of surface fluctuation effects on the spectral null of Rg waves generated by CLVD source with Spectral Element Method simulation

被引：1

作者：

Xu Heng-Lei ^{[1
]}

Jin Ping ^{[1
]}

Ni Si-Dao ^{[2
]}

Liu Wen-Xue ^{[1
,3
]}

Wang Hong-Chun ^{[1
,2
]}

Li Xin ^{[1
]}

机构：

[1] NW Inst Nucl Technol, Xian 710024, Peoples R China

[2] Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China

[3] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China

来源：

CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2011年 / 54卷 / 11期

关键词：

CLVD source; Rg waves; Spectral null; Spectral Element Method; Surface fluctuation; NUCLEAR-EXPLOSIONS; LG; PROPAGATION; SCATTERING; KAZAKH; NTS;

D O I：

10.3969/j.issn.0001-5733.2011.11.013

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The characteristics of the spectral null of Rg waves generated by CLVD source and the corresponding source depths are simulated numerically with Spectral Element Method under various fluctuation models. The results indicate that the spectral null of Rg waves still exists under certain conditions, and the location of the spectral null reflects the signatures of the surface fluctuation near the source. However, the depth calculated according to the spectral null still has a certain bias compared with the theoretical value. The fluctuant surface far from the source has little effect on the spectral null.

引用

页码：2831 / 2837

页数：7

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