Wang Yue, Zhang Jie. 2018: Pseudo 2D joint elastic waveform inversion for velocities and attenuation in the near surface. Acta Seismologica Sinica, 40(5): 595-608. DOI: 10.11939/jass.20170196
Citation: Wang Yue, Zhang Jie. 2018: Pseudo 2D joint elastic waveform inversion for velocities and attenuation in the near surface. Acta Seismologica Sinica, 40(5): 595-608. DOI: 10.11939/jass.20170196

Pseudo 2D joint elastic waveform inversion for velocities and attenuation in the near surface

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  • Received Date: November 08, 2017
  • Revised Date: December 25, 2017
  • Available Online: August 21, 2018
  • Published Date: August 31, 2018
  • In this study, by applying cross-gradient constraints, we joint early arrivals and surface waves to invert the 2D P-wave velocity, S-wave velocity, QP and QS simultaneously for the near-surface area. In order to improve the efficiency of computation, we propose a method that employs 1D elastic forward modeling and applies 2D Tikhonov regularization to invert the 2D velocity structures and attenuation model. Synthetic tests and real data application illustrate that the method can greatly improve the computational efficiency, and is able to invert reliable velocity and attenuation models simultaneously.
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