Qinya Liu
Professor of Geophysics
Department of Physics & Department of Earth Sciences
University of Toronto
(416)978-5434   
 
 

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Publications
  1. Passive source reverse time migration based on the spectral-element method, B. He, Y. Chen, D. Lumley, Q. Liu, N. Takeuchi, H. Kawakatsu, H. Zhu, submitted to JGR Solid Earth (2023).
  2. Introduction to the BSSA Special Issue on Modern Seismic Tomography, Fichtner et al., submitted to BSSA (2023)
  3. Lithospheric Structures of Mid-continent Rift Revealed by Full-waveform Joint Inversion of Ambient-Noise Data and Teleseismic P waves, Bin He, Kai Wang, Tianshi Liu, Ting Lei, Nanqiao Du, Suzan van der Lee, Fiona Ann Darbyshire, Andrew Frederiksen, Hejun Zhu, David Lumley, Qinya Liu, resubmitted to EPSL (2024).
  4. Incorporating Topographic Effects in Surface Wave Tomography based on Shortest-Path Ray Tracing, Nanqiao Du, Tingwei Yang, Tao Xu and Qinya Liu, resubmitted to GJI (2024).
  5. Quantitative optimization for acoustic emission sensor arrangement in rock laboratory experiments, Liang Ding1, Gang Yang, Edouard Kravchinsky, Afeez K. Popoola, Sebastian D. Goodfellow, Qinya Liu, Giovanni Grassell, submitted to Rock Mechanics and Rock Engineering (2023).
  6. Cube2sph: A Toolkit Enabling Efficient and Accurate Continental-scale Seismic Wave Simulations using the SPECFEM3D Package, T.S. Liu, etc, resubmitted to Computers and Geosciences (2024).

  7. Systematic uncertainty quantification of first-polarity-based moment tensor inversion due to sparse coverage of sensor arrays in laboratory acoustic emission monitoring, Liang Ding, Edouard Kravchinsky, Afeez K. Popoola, Yusheng Qiu, Sebastian Goodfellow, Qinya Liu, and Giovanni Grassell, Pure and Applied Geophysics (2023). PDF

  8. Recent progress on full waveform inversion (Chinese), Hejun Zhu, Qinya Liu, Jidong Yang, Review of Geophysics and Planetary Physics, 53(0), 1-31 (2022). PDF
  9. Editorial: Reverse Time Imaging in Solid Earth and Exploration Geophysics, H-W Zhou, Z. Zou, W. Zhang, Q. Liu and H. Hu, Front. Earth Sci. 10:931127. doi: 10.3389/feart.2022.931127 (2022). PDF (Reverse Time Imaging in Solid Earth and Exploration Geophysics Ebook)

  10. Toward waveform-based characterization of slab and mantle wedge (SAM) earthquakes, F. Halppap, S.Rondenay, Q. Liu, F. Millet, L. Ottemoller, 126, e2020JB021573, JGR (2021). PDF
  11. Full-Waveform Inversion of High-frequency Teleseismic Body Waves based on Multiple Plane Wave Incidence: Validation and Practical Applications, K. Wang, Y. Wang, X. Song, P. Tong, Q. Liu and Y.J. Yang, doi:10.1785/0120210094, BSSA (2021). PDF
  12. On-the-fly Full Hessian Kernel Calculations based upon seismic wave simulations, Y.J. Xie, C. Rychert, N. Harmon, Q. Liu, D. Gajewski, doi:10.1785/0220200410, SRL (2021). PDF
  13. Adjoint Tomography of Ambient Noise Data and Teleseismic P Waves: Methodology and Applications to Central California, K. Wang, Y.J. Yang, C.X. Jiang, Y. Wang, P. Tong, T.S. Liu and Q. Liu, Vol 126, No. 6, e2021JB021648, JGR Solid Earth (2021) PDF
  14. New insights into the structural heterogeneity and geodynamics of the Indo-Burma subduction zone from ambient noise tomography, S.C. Wu, J.Y. Yao, S.J. Wei, J. Hubbard, Y. Wang, Y. M. M. Htwe, M. Thant, X. Wang, K. Wang, T.S. Liu, Q. Liu, P. Tong, 562, 116856, Earth and Planetary Science Letters (2021). PDF
  15. Crustal rotation and fluids: Factors for the 2019 Ridgecrest earthquake sequence?, P. Tong, J. Yao, Q. Liu, T. Li, D. Yang, K. Wang, and S. Liu, GRL, 48, e2020GL090853 (2021). PDF

  16. Joint inversion of linear array ambient noise surface-wave and teleseismic body-wave data based on an adjoint-state method, Chao Zhang, Huajian Yao, Ping Tong, Q. Liu, T. Lei, Journal of Geophysics (in Chinese), 63(11): 4065-4079, doi: 10.6038/cjg2020O0181 (2020)
  17. Crustal deformation in southern California constrained by radial anisotropy from ambient noise adjoint tomography, K. Wang, C.X. Jiang, Y.J. Yang, V. Schulte-Pelkum, and Q. Liu, Vol 47, e2020GL088580, GRL (2020). PDF, Final Radially anisotropic Socal Model
  18. Locating microseismic sources based upon L-shaped single-component geophone array: a synthetic study, L. Ding, Q. Liu, E. Gao, W. Qian and S. Sun, 27, 2711-2725, Journal of Central South University (2020). PDF
  19. A generalized cover renewal strategy for multiple crack propagation in two-dimensional numerical manifold method, Changyi Yu, Fei Zheng, Bingchuan Guo, Q. Liu, 27, 2367-2381, Journal of Central South University (2020). PDF

  20. High-frequency seismic wave modeling of deep Earth's interior based on spectral-element simulations and hybrid methods: a conceptual study, Chuangxin Lin, Vadim Monteiller, Kai Wang, Tianshi Liu, Ping Tong, Qinya Liu, Vol 219, No. 3, P 1948-69, GJI (2019). PDF
  21. A coupled NMM-SPH method for fluid-structure interaction problems, Ying Xua, Changyi Yu, Feng Liu, Qinya Liu, Applied mathematical modelling, 16, 446-478 (2019). PDF
  22. Three-dimensional sensitivity kernels for multi-component empirical Greens functions from ambient noise: Methodology and application to adjoint tomography. K. Wang, Q. Liu, and Y. Yang., JGR: Solid Earth, 124, doi:10.1029/2018JB017020 (2019). PDF.

  23. Refined crustal and uppermost mantle structure of southern California by ambient noise adjoint tomography, K. Wang, Y. Yang, P. Tong, P. Basini, C. Tape and Q. Liu., GJI, 215(2), 844-863 (2018). PDF
  24. Reverse-time ray-tracing method for microseismic source localization, L. Ding, E. Gao, Q. Liu, W. Qian, D. Liu, Yang, C., GJI, 214 (3), P2053-72 (2018). PDF
  25. Numerical investigations on mechanical characteristics and failure mechanism of outwash deposits based on random meso-structures using discrete element method, Q. Zhang, W.Y. Xu, Q. Liu, J.L. Shen, L. Yan, J. of Central South University, 24, 2894-2905 (2018). PDF
  26. Linear array ambient noise adjoint tomography reveals intense crust-mantle interactions in North China Craton, C. Zhang, H. Yao, Q Liu, P. Zhang,Y. O. Yuan, J. Feng, and L. Fang, J. Geophys. Res. DOI: 10.1002/2017JB015019 (2018). PDF.

  27. Full-waveform detection of non-impulsive seismic events based on time-reversal methods, E.A. Solano, V. Hjorleifsdottir and Q. Liu, 211, 1396-1413, Geophys. J. Int. (2017). PDF
  28. Fast computation of global sensitivity kernel database based on spectral-element simulations, Sales de Andrade, E. and Liu, Q., Pure and Applied Geophysics, 174, 2733-61 (2017). PDF
  29. Exploring the structures of Earth's Interior and earthquake source mechanisms -- Scientific contributions of seismologist Adam M. Dziewonski (in Chinese), Q. Liu, Y. J. Gu and H. J. Yao, 47(5), 509-517, Scientia Sinica Terrae (2017). PDF
  30. Time-evolving seismic tomography: The method and its application to the 1989 Loma Prieta and 2014 South Napa earthquake area, California, P. Tong, D.H. Yang, D.Z. Li and Q. Liu, 44(7), 3165-75, Geophys. Res. Lett. (2017). PDF
  31. Effective media for transversely isotropic models: with applications to borehole sonic logs, Lin, C., Saleh, R., Milkereit, B. and Liu, Q., Pure and Applied Geophysics, 174(7), 2631-2647 (2017). PDF
  32. A novel non-overlapping approach to accurately represent arbitrary particles for DEM modelling, Zhang, Q., Xu, W., Liu, Q., Wang, W. and Meng, Q.X., J. Cent. South Univ., 24: 190-202 (2017). PDF
  33. Effects of conjugate gradient methods and step-length formulas on the multiscale full waveform inversion in time domain: numerical experiments, Liu, Y.S., Teng, J.W., Xu, T., Badal, J., Liu, Q., and Zhou, B., 174(5), 1983-2006, Pure and Applied Geophysics (2017). PDF
  34. Robust time-domain full waveform inversion with normalized zero-lag cross-correlation objective function, Y.S. Liu, J.W. Teng, X. Tao, Y.H. Wang and Q. Liu and J. Badal, Geophys. J. Int., 209(1), 106-122 (2017). PDF

  35. Anelastic sensitivity kernels with parsimonious storage for adjoint tomography and full waveform inversion, D. Komatitsch, Z. Xie, E. Bozdag, E. Sales de Andrade, D. Peter, Q. Liu, J. Tromp, Geophys. J. Int., Vol 206, No. 1, 1467-1478 (2016). PDF
  36. Constraints on the heterogeneity spectrum of Earth's upper mantle, Nicholas Mancinelli, P. Shearer, Q. Liu, JGR, 121(5), 3703-21 (2016). PDF
  37. Wave equation-based reflection tomography of the 1992 Landers earthquake, Xueyuan Huang, Dinghui Yang, Ping Tong, Jose Badal and Qinya Liu, GRL, 43(5), 1884-1892 (2016). PDF
  38. Acoustic wave-equation-based earthquake location, P. Tong, D.H. Yang, Q. Liu, X. Yang and J. Harris, Geophys. J. Int., 205, 464-478 doi: 10.1093/gji/ggw026 (2016). PDF

  39. Mantle-driven Uplift of Hangai Dome: New Seismic Constraints from Adjoint Tomography, M. Chen, Niu, F.L., Liu, Q. and Tromp, J., 42, 6967-74, GRL (2015). PDF, AGU Blogsphere post and video
  40. Influences of in-situ stress variations on acoustic emissions: a numerical study, Qi Zhao, Nicola Tisato, Giovanni Grasselli, Omid K. Mahabadi, Andrea Lisjak, and Qinya Liu, 203 (2) 1246-1252, GJI (2015). PDF
  41. Multi-parameter adjoint tomography of the crust and upper mantle beneath East Asia - Part I: Model construction and comparisons, Chen, M., Niu, F., Liu, Q., Tromp, J., and Zheng, X., J. Geophys. Res. DOI: 10.1002/2014JB011638 (2015). PDF, Suppl

  42. Dependence of sandpile avalanche frequency-size distribution on coverage extent and compactness of embedded toppling threshold heterogeneity: implications for the variation of Gutenberg-Richter b-value, L.-Y. Chiao and Q. Liu, Nonlinear Processes in Geophysics, 21, 1185-1193 (2014). PDF
  43. A 3-D spectral-element and frequency-wave number hybrid method for high-resolution seismic array imaging, Tong, P., D. Komatitsch, T.-L. Tseng, S.-H. Hung, C.-W. Chen, P. Basini, and Q. Liu Geophys. Res. Lett., 41, 7025-7034, doi:10.1002/2014GL061644 (2014). PDF, Research Spotlight on EOS
  44. Wave-equation based traveltime seismic tomography: I. Method, P. Tong, D.P. Zhao, D. H. Yang, X. Yang and Q. Liu, Solid Earth, 5, 1151-1168 (2014). PDF
  45. Wave-equation based traveltime seismic tomography: II. Application to the 1992 Landers earthquake (Mw 7.3) area, P. Tong, D. P. Zhao, D. H. Yang, X. Yang and Q. Liu, Solid Earth, 5, 1169-1188 (2014). PDF
  46. Numerical simulation of hydraulic fracturing and associated microseismicity using finite-discrete element method, Q. Zhao, A. Lisjak, O. Mahabadi, Q. Liu, G. Grasselli, Journal of Rock Mechanics and Geotechnical Engineering, Vol. 6, 574-581 (2014). PDF
  47. High-resolution seismic array imaging based on a SEM-FK hybrid method, P. Tong, C. W. Chen, D. Komatitsch, P. Basini and Q. Liu, GJI, 197, 369-395 (2014). PDF
  48. Toward real-time regional earthquake simulation II: Real-time Online earthquake Simulation (ROS) of Taiwan earthquakes, S. J. Lee, Q. Liu, J. Tromp, D. Komatitsch, W. T. Liang, and B. S. Huang, JAES, 87, 56-68 (2014). PDF
  49. Spectral-element simulations of elastic wave propagation in exploration and geotechnical applications, L. Zheng, Q. Zhao, B. Milkereit, G. Grasselli, Q. Liu, Earthquake Science, 27(2):179-187 (2014). PDF

  50. Numerical simulation of acoustic emission in rocks using FEM/DEM, G. Grasselli, Q. Zhao, A. Lisjak, and Q. Liu. in Rock Dynamics and Applications - State of the Art, Keynotes in Proceedings of First International Conference on Rock Dynamics and Applications. (2013)
  51. Dynamic simulation of acoustic emission in brittle rocks by two-dimensional finite-discrete element analysis, A. Lisjak, Q. Liu, Q. Zhao, Mahabadi, O., Grasselli, G., 195: 423-443, GJI (2013). PDF

  52. Seismic imaging: From classical to adjoint tomography, Qinya Liu, Yu J. Gu, Tectonophysics, 10.1016/j.tecto.2012.07.006 (2012). PDF

  53. Surface wave sensitivity: Mode summation and adjoint SEM, Ying Zhou, Qinya Liu and Jeroen Tromp, GJI, 187, 1560-1576 (2011).  PDF
  54. Forward and adjoint simulations of seismic wave propagation on unstructured hexahedral meshes, Peter, D., Komatitsch, D., Luo, Y., Martin, R., Goff, L., Casarotti, E., Loher, P.L., Magnoni, F., Liu, Q., Blitz, C., Nissen-meyer, T., Basini, P., Tromp, J., Geophys. J. Int. 186, 721-739 (2011).   PDF
  55. Adjoint centroid-moment tensor inversions, YoungHee Kim, Qinya Liu and Jeroen Tromp, Geophys. J. Int., 186, 264-278 (2011).   PDF
  56. On the visibility of the inner-core shear wave phase PKJKP at long periods, P. M. Shearer, C. A. Rychert, and Q. Liu, Geophys. J. Int., 185, 1379-1383 (2011).   PDF

  57. Near real-time simulations of global CMT earthquakes, Tromp, J., Komatitsch, D., Hjorleifsdottir, V., Liu, Q., Zhu, H., Peter, D., Bozdag, E., McRitchie, D., Friberg, P., Trabant, C., and Hutko, A., Geophys. J. Int., 183, 381-389. doi:10.1111/j.1365-246X.2010.04734.x (2010).   PDF
  58. AAAS News Release, Princeton News
  59. Seismic tomography of the southern California crust based on spectral-element and adjoint methods, Carl Tape, Qinya Liu, Alessia Maggi and Jeroen Tromp, GJI, 180, 433-462 (2010).   PDF

  60. Adjoint Tomography of the Southern California Crust, Carl Tape, Qinya Liu, Alessia Maggi, and Jeroen Tromp, Science, No. 21, Vol. 325, Page 988-992 (2009).   PDF

  61. Finite-frequency Sensitivity Kernels for Global Seismic Wave Propagation based upon Adjoint Methods, Qinya Liu and Jeroen Tromp, GJI, Vol. 174, Issue 1, Page 265-286 (2008)   PDF
  62. Time-reversal location of glacial earthquakes, Larmat, C., Tromp, J., Liu, Q., Montagner, J.-P., J. Geophysics. Res., 113, B09314, doi:10.1029/2008JB005607 (2008).   PDF
  63. Spectral-element and adjoint methods in seismology, Tromp, J., Komatitsch, D., and Liu, Q., Comm. in Comput. Phys, 3, 1-32 (2008).   PDF
  64. Three-Dimensional simulations of seismic-Wave propagation in the Taipei basin with realistic topography based upon the spectral-element method, Lee, S.-J., Chen, H.-W., Liu, Q., Komatitsch, D., Huang, B.S., and Tromp, J., Bull. Seism. Soc. Amer., Vol 98, No. 1, 253-264 (2008).   PDF

  65. Finite-frequency sensitivity of body waves to anisotropy based upon adjoint methods, Sieminski, A., Liu, Q., Trampert, J., and Tromp, J., Geophys. J. Int., 171, 368-389 (2007).   PDF
  66. Finite-frequency Sensitivity of Surface Waves to Anisotropy based upon Adjoint Methods, Anne Sieminski, Qinya Liu, Jeannot Trampert and Jeroen Tromp, Geophysical Journal International, 168, 1153-1174 (2007).   PDF
  67. Finite-frequency Tomography using Adjoint Methods -- Methodology and Examples using Membrane Surface Waves, Carl Tape, Qinya Liu and Jeroen Tromp, Geophysical Journal International, 168, 1105-1129 (2007).   PDF

  68. Finite-frequency Sensitivity Kernels based upon Adjoint Methods, Qinya Liu and Jeroen Tromp, Bulletin of the Seismological Society of America, Vol. 96, No. 6, pp. 2383-2397 (2006). PDF
  69. A Structural (Vp) Model of the Salton Trough, California, and its Implication for Seismic Hazard, Peter Lovely, John Shaw, Qinya Liu, and Jeroen Tromp, Bulletin of the Seismological Society of America, Vol. 96, No. 5, pp 1882-1896 (2006). PDF

  70. Seismic Tomography, Adjoint Methods, Time Reversal, and Banana-Doughnut Kernels, Jeroen Tromp, Carl Tape, and Qinya Liu, Geophysical Journal International, Vol. 160, Issue 1, P195-216 (2005).   PDF

  71. Spectral-Element Moment Tensor Inversions for Earthquakes in Southern California, Qinya Liu, Jascha Polet, Dimitri Komatitsch and Jeroen Tromp, Bulletin of the Seismological Society of America, Vol. 94, No. 5, pp.1748-1761 (2004).  PDF
  72. Simulations of ground motion in the Los Angeles basin based upon the spectral-element method, Dimitri Komatitsch, Qinya Liu, Jeroen Tromp, Peter Suss, Christiane Stidham and John H. Shaw, Bulletin of the Seismological Society of America, Vol. 94, No. 1, pp.187-206 (2004).  PDF

 

Other writings
  1. In Memoriam: Min Chen (1978-2021), also a short version on AGU in-memoriam Page