One-way wave propagation in the ray-centred coordinate system for vertical transversely isotropic media
| العنوان: | One-way wave propagation in the ray-centred coordinate system for vertical transversely isotropic media |
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| المؤلفون: | Huazhong Wang, Bohan Zhang |
| المصدر: | Acta Geophysica. 69:1225-1239 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, Geophysics, Transverse isotropy, Wave propagation, Attenuation, Coordinate system, Mathematical analysis, Seismic migration, Anisotropy, Wave equation, Seismic wave |
| الوصف: | Seismic wave imaging in complex media requires a suitable wave field simulation method that can accurately describe real-media wave propagation. Reverse time migration is currently the preferred method; however, it is not optimal for simulating wave field propagation as it is based in solving the wave equation (qP-wave equation). The objective of this study is to develop a wave propagation simulation method to accurately describe the P-wave energy, which is less affected by complex surface conditions, and easily integrate anisotropy and attenuation by absorption media. Herein, qP-wave propagation is simulated in vertical transversely isotropic (VTI) media using the one-way wave equation in the ray-centred coordinate system (15°), which combines the flexibility of ray theory and accuracy of wave theory to describe wave propagation. Based on the qP-wave equation of VTI media, the wave equation in the ray-centred coordinate system and the one-way wave equation (15°) in the ray-centred coordinate system are derived. The 15° one-way wave equation can simulate the wave propagation process in complex media. Numerical experiments verify that the simulation results for the 15° equation in the ray-centred coordinate system exhibit high accuracy. |
| تدمد: | 1895-7455 1895-6572 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::64c48b4fd8782d1938a55fb8eb6de51fTest https://doi.org/10.1007/s11600-021-00596-4Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........64c48b4fd8782d1938a55fb8eb6de51f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 18957455 18956572 |
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