IGGCAS OpenIR  > 地球与行星物理院重点实验室
SEISMIC WAVEFIELD SIMULATION WITH IRREGULAR SURFACE TOPOGRAPHY AND GRAPHIC PROCESSING UNIT (GPU) IMPLEMENTATION
Liu, Xiaobo1; Chen, Jingyi1; Lan, Haiqiang2; Zhao, Zhencong1
2018-10-01
发表期刊JOURNAL OF SEISMIC EXPLORATION
ISSN0963-0651
卷号27期号:5页码:445-472
摘要Seismic wavefield simulation in the presence of surface topography provides important information for characterizing seismic wave propagation. Based on the boundary-conforming grid method, we first transform both elastic wave equations in second-order formulation and free surface boundary condition in first order system from Cartesian coordinates to curvilinear coordinates. Then, the convolutional perfectly matched layer (CPML) boundary condition is applied to absorb the outgoing seismic waves at the edges of the truncated model. The test results (e.g., wavefield snapshots and seismograms) show that our numerical algorithms can effectively simulate seismic wave propagation in a model with rough topography, and CPML is more efficient than perfectly matched layer (PML) boundary condition in suppressing artificial reflections. In addition, the finite-difference algorithms on a single Graphic Processing Unit (GPU) are used to accelerate seismic numerical modeling in both elastic isotropic and anisotropic media. Compared with the conventional CPU version, the GPU implementation greatly reduces the computational cost.
关键词wavefield simulation surface topography finite-difference convolutional perfectly matched layer Graphic Processing Unit GPU
关键词[WOS]PERFECTLY MATCHED LAYER ; FINITE-DIFFERENCE SCHEMES ; BOUNDARY-CONDITION ; GRAZING-INCIDENCE ; CONVOLUTION PML ; PROPAGATION ; STABILITY ; MIGRATION ; MEDIA ; EQUATION
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000454943100003
出版者GEOPHYSICAL PRESS
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90251
专题地球与行星物理院重点实验室
通讯作者Chen, Jingyi
作者单位1.Univ Tulsa, Dept Geosci, Seism Anisotropy Grp, Tulsa, OK 74104 USA
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
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GB/T 7714
Liu, Xiaobo,Chen, Jingyi,Lan, Haiqiang,et al. SEISMIC WAVEFIELD SIMULATION WITH IRREGULAR SURFACE TOPOGRAPHY AND GRAPHIC PROCESSING UNIT (GPU) IMPLEMENTATION[J]. JOURNAL OF SEISMIC EXPLORATION,2018,27(5):445-472.
APA Liu, Xiaobo,Chen, Jingyi,Lan, Haiqiang,&Zhao, Zhencong.(2018).SEISMIC WAVEFIELD SIMULATION WITH IRREGULAR SURFACE TOPOGRAPHY AND GRAPHIC PROCESSING UNIT (GPU) IMPLEMENTATION.JOURNAL OF SEISMIC EXPLORATION,27(5),445-472.
MLA Liu, Xiaobo,et al."SEISMIC WAVEFIELD SIMULATION WITH IRREGULAR SURFACE TOPOGRAPHY AND GRAPHIC PROCESSING UNIT (GPU) IMPLEMENTATION".JOURNAL OF SEISMIC EXPLORATION 27.5(2018):445-472.
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