IGGCAS OpenIR
Fast and accurate calculation of seismic wave travel time in 3D TTI media
Mao Yuan-Tong1,2,3; Zhao Ai-Hua1
2021-12-01
Source PublicationAPPLIED GEOPHYSICS
ISSN1672-7975
Volume18Issue:4Pages:545-556
AbstractThe Tilted tilted transversely isotropic (TTI) media, a kind of anisotropic medium, widely exists within the earth. For faster calculation of travel times in the TTI anisotropic media, we modified a minimum traveltime tree algorithm with high efficiency by dynamical modification of the secondary wave propagation region during the spread of seismic waves. To manage the wavefront points in the modified version, we used a novel minimum heap sorting technique to reduce the time spent on selecting secondary waves points. In this study, seismic group velocities were obtained from analytical solutions in terms of phase angle, and the corresponding phase angles were determined by binary search rather than approximate equations for weakly anisotropic media. For the most time-consuming part of the secondary wave traveltime calculation, the parallel computation was initially performed using multiple cores and threads. Numerical examples showed that the improved method can calculate seismic travel times and ray paths faster and accurately in a 3D TTI medium. For four cores and eight threads, the computing speed increased by six times when compared to the conventional method.
KeywordTTI media ray tracing minimum traveltime tree algorithm minimum heap sorting parallel computation
DOI10.1007/s11770-021-0917-z
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration
WOS KeywordVELOCITY ANALYSIS ; EIKONAL EQUATION ; ISOTROPIC MEDIA ; ANISOTROPY ; ALGORITHM
Language英语
Funding ProjectNational Key R&D Program of China[2020YFA0710600] ; National Science Foundation of China[41374098] ; Special Fund of the Institute of Geophysics, China Earthquake Administration[DQJB19B40]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration ; Special Fund of the Institute of Geophysics, China Earthquake Administration
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000789846800010
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105164
Collection中国科学院地质与地球物理研究所
Corresponding AuthorZhao Ai-Hua
Affiliation1.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Mao Yuan-Tong,Zhao Ai-Hua. Fast and accurate calculation of seismic wave travel time in 3D TTI media[J]. APPLIED GEOPHYSICS,2021,18(4):545-556.
APA Mao Yuan-Tong,&Zhao Ai-Hua.(2021).Fast and accurate calculation of seismic wave travel time in 3D TTI media.APPLIED GEOPHYSICS,18(4),545-556.
MLA Mao Yuan-Tong,et al."Fast and accurate calculation of seismic wave travel time in 3D TTI media".APPLIED GEOPHYSICS 18.4(2021):545-556.
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