Computational Modelling Group

Dr Yujiang Xie

Position
Research Fellow
Institution
Ocean & Earth Science (FNES)
Webpage
https://sites.google.com/site/yujiangxie
Telephone
(023) 8059 9239
E-mail
yujiang.xie@soton.ac.uk
E-mail
yujiangxie@gmail.com
Contact
Complete this online contact form to contact Yujiang.

Dr Yujiang Xie is working within Ocean and Earth Science, National Oceanography Centre Southampton (NOCS) at the University of Southampton, UK.

Education

2017: PhD in Earth System Sciences, University of Hamburg, Germany

2013: Master in Geological Engineering, Lanzhou University, China

2010: Bachelor in Geological Engineering, China University of Mining and Technology, Beijing

Research interests: Broad interests in Geophysics, Mechanics, Mathematics, and Artificial Intelligence; specialized in numerical methods (FEM/SEM), partial differential equations (PDEs), and inverse problems, such as wave propagation and simulation, full waveform modeling and inversion, and adjoint tomography. In recent years, I have applied machine learning to address PDEs and inverse problems. These techniques can be applied to various scenarios.

Selected talks:

07/2023: QuadSEM3D: Quad spectral-element and adjoint state method, with Dr. David Al-Attar, Department of Earth Sciences, University of Cambridge, UK.

03/2023: QuadSEM: Quad spectral-element and adjoint state method, with Prof. Dr. Barbara Wohlmuth et al., Technical University of Munich, Germany.

09/2022: Quad spectral-element method and second-order adjoint state method, with Dr. David A. Ham and Prof. Paul Kelly (Imperial College London, UK), and Prof. Patrick Farrell (University of Oxford, UK).

07/2022: Spectral element and adjoint methods with full Hessian kernels, radial and azimuthal anisotropy, with Prof. Barbara Romanowicz, University of California, Berkeley, USA.

05/2020: Bayesian inference and machine-learning methods to seismic data analysis, with Prof. Mike Hobson and Prof. Nicholas Rawlinson, University of Cambridge, UK.

06/2019: Open-source packages for full-waveform modeling and inversion, with Prof. Catherine Rychert and Prof. Nicholas Harmon, University of Southampton, UK.

Selected peer-reviewed publications:

  1. Xusong Yang, Yujiang Xie, Catherine A. Rychert, Nicholas Harmon, Saskia Goes, Andreas Rietbrock, Lloyd Lynch, and VoiLA Working Group, 2023. Chemical anomalies from ancient tectonics drive plates deep into Earth, Nature, re-submitted.

  2. Peng Yang, Dirk Gajewski and Yujiang Xie, 2023. Integrated wavefront tomography for joint inversion of velocity model, source location, and source excitation time using time-reversal methods, Geophysics, manuscript reviewed by co-authors.

  3. Tianshi Liu, Kai Wang, Yujiang Xie, Ting Lei, Nanqiao Du, Ping Tong, Yingjie Yang, Catherine Rychert, Nicholas Harmon, Giovanni Grasselli and Qinya Liu, 2023. Cube2sph: A Toolkit Enabling Flexible and Accurate Continental-scale Seismic Wave Simulations using the SPECFEM3D Package, Computers & Geosciences, submitted.

  4. Yujiang Xie, Catherine Rychert, Nicholas Harmon, 2023. Elastic and anelastic adjoint tomography with and full Hessian kernels, Geophysical Journal International, 234, 1205–1235. dot:10.1093/gji/ggad114

  5. Peng Yang, Dirk Gagewski and Yujiang Xie, 2023. Gaussian-weighted cross-correlation imaging condition for microseismic source localization, Geophysics. 88, 1-96, https://doi.org/10.1190/geo2022-0455.1

  6. Nicholas Harmon, Catherine Rychert, Yujiang Xie and Bogiatzis Petros, 2022. Analytic P-to-S and S-to-P scattered wave sensitivity kernels, Geochemistry, Geophysics, Geosystems, 23, e2021GC010290. doi: https://doi.org/10.1029/2021GC010290

  7. Bogiatzis Petros, Catherine Rychert, Nicholas Harmon and Yujiang Xie, 2022. Fast calculation of spatial sensitivity kernels for converted waves in arbitrary heterogeneous media using graph theory, Geophysical Journal International, 230, 654-672. doi: https://doi.org/10.1093/gji/ggac078

  8. Yujiang Xie, Catherine Rychert, Nicholas Harmon, Qinya Liu and Dirk Gajewski, 2021. On-the-fly Full Hessian Kernel Calculations Based upon Seismic Wave Simulations, Seismological Research Letters, 92(6): 3832–3844. doi: https://doi.org/10.1785/0220200410

  9. Lei Li, Jingquan Tan, Dazhou Zhang, Ajay Malkoti, Ivan Abakumov and Yujiang Xie, 2021. FDwave3D: A MATLAB solver for the 3D anisotropic wave equation using the finite-difference method, Computational Geosciences, 25, 1565–1578. doi: https://doi.org/10.1007/s10596-021-10060-3

  10. Yujiang Xie and Dirk Gajewski, 2019. Reliability of data-driven wavefront attributes in laterally heterogeneous media, Geophysics, 84(3), O49-O62. doi: https://doi.org/10.1190/geo2018-0382.1

  11. Lei Li, Jingquan Tan, Yujiang Xie, Yuyang Tan, Jan Walda, Zhengguang Zhao and Dirk Gajewski, 2019. Waveform-based microseismic location using stochastic optimization algorithms: A parameter tuning workflow, Computers & Geosciences, 124, 115-127. doi: https://doi.org/10.1016/j.cageo.2019.01.002

  12. Yujiang Xie and Dirk Gajewski, 2018. 3-D wavefront attribute determination and conflicting dip processing, Geophysics, 83(6), V325-V343. doi: https://doi.org/10.1190/geo2017-0792.1

  13. Yujiang Xie and Dirk Gajewski, 2017. 5-D interpolation with wavefront attributes, Geophysical Journal International, 211(2), 897-919. doi: https://doi.org/10.1093/gji/ggx334

  14. Yujiang Xie and Gao Liu, 2015. Resolution enhancement of non-stationary seismic data using amplitude-frequency partition, Geophysical Journal International, 200, 773-778. doi.org/10.1093/gji/ggu401

  15. Yujiang Xie and Gao Liu, 2014. Predicting the distribution of reservoirs by combining variable wavelet model of seismograms with wavelet edge analysis and modeling, Journal of Applied Geophysics, 101, 116-123. doi: https://doi.org/10.1016/j.jappgeo.2013.12.005

Selected international conference presentations:

  1. Yujiang Xie, Catherine Rychert, Nicholas Harmon, Petros Bogiatzis and Michael Kendall. Full-waveform Inversion at the Mid-Atlantic Ridge based on PI-LAB experiment: model resolution and inter-parameter trade-off analyses, AGU Fall Meeting 2021.

  2. Yujiang Xie, Catherine Rychert, Nicholas Harmon and Qinya Liu. QuadSEM-Hdm: a hybrid toolkit for FWI model-resolution assessment and inter-parameter trade-off analysis via full Hessian kernels, AGU Fall Meeting 2021.

  3. Qinya Liu, Tianshi Liu, Bin He, Kai Wang, Yingjie Yang, Yujiang Xie, Catherine Rychert, Nicholas Harmon. Cube2sph: a toolkit enabling accurate and efficient continental-scale seismic wave simulation using SPECFEM3D, AGU Fall Meeting 2021.

  4. Yujiang Xie, Catherine Rychert, Nicholas Harmon, Petros Bogiatzis, Qinya Liu and Michael Kendall. Full-waveform Inversion at the Mid-Atlantic Ridge (MAR) based on PI-LAB experiment, Pacific Workshop 2021.

  5. Yujiang Xie, Catherine Rychert, Nicholas Harmon, Petros Bogiatzis, Qinya Liu and Michael Kendall, Full-waveform Inversion at the Mid-Ocean Ridge based on PI-LAB experiment, AGU Fall Meeting 2020.

  6. Qinya Liu, Tianshi Liu, Bin He, Kai Wang, Yingjie Yang, Yujiang Xie, Catherine Rychert and Nicholas Harmon. Implementation of perfectly matched layer (PML) boundary condition for curvilinear grids in the SPECFEM3D package, AGU Fall Meeting 2020.

  7. Yujiang Xie, Lei Li, Catherine Rychert, Nicholas Harmon, Petros Bogiatzis and Daniel Peter. Computation of Hessian vector product by spectral-element and adjoint methods using wavefield storage scheme, AGU Fall Meeting 2020.

  8. Yujiang Xie, Catherine Rychert, Nicholas Harmon and Michael Kendall. 3D Full-Waveform Modeling at the Equatorial Mid-Atlantic Ridge from PI-LAB Experiment, AGU Fall Meeting 2019, San Francisco, USA, 2019.

  9. Yujiang Xie, Catherine Rychert, Nicholas Harmon, Qinya Liu and J Michael Kendall. SPECFEM3D: An Improvement of the Internal Mesher for Full-Waveform Modeling with 3D Elastic Parameters, Acoustic/Elastic Propagation, and Bathymetry/Topography, AGU Fall Meeting 2019, San Francisco, USA, 2019.

Selected international conference papers:

  1. Yujiang Xie, Yan Yang and Lei Li. 3D wavefront tomography, Part I: NIP wavefront tomography, SEG Technical Program Expanded Abstracts 2018, Anaheim, USA, 2018.

  2. Yujiang Xie,Yan Yang and Dirk Gajewski. Wavefront attribute estimation for 3D laterally heterogeneous media, SEG Technical Program Expanded Abstracts 2018, Anaheim, USA, 2018.

  3. Lei Li, Yujiang Xie, Dirk Gajewski, Yuyan Tan, and Jinqiang Tan. Parameter tuning of differential evolution algorithm for microseismic location, SEG Technical Program Expanded Abstracts 2018, Anaheim, USA, 2018.

  4. Yujiang Xie and Dirk Gajewski. 3D prestack data enhancement with a simplified CO CRS operator, 79 EAGE Conference and Exhibition 2017, Paris, France, 2017.

  5. Li Lei, Yujiang Xie, Hao Chen, Xiuming Wang and Dirk Gajewski. Improving the efficiency of microseismic imaging with particle swarm optimization, 79 EAGE Conference and Exhibition 2017, Paris, France, 2017.

  6. Yujiang Xie and Dirk Gajewski. Simultaneous estimation of the 3D CRS attributes by an evolutionary-based Nelder-Mead algorithm, SEG Technical Program Expanded Abstracts 2016, Dallas, USA, 2016.

  7. Yujiang Xie and Dirk Gajewski. Interpolation and regularization with the 3D CRS operator, SEG Technical Program Expanded Abstracts 2016, Dallas, USA, 2016.

  8. Yujiang Xie and Dirk Gajewski. Automatic estimation of the 3D CRS attributes by a metaheuristic-based optimization, 78th EAGE Conference and Exhibition 2016, Vienna, Austria, 2016.

  9. Yujiang Xie and Dirk Gajewski. 5-D interpolation and regularization with wavefront attributes. Wave Inversion Technology (WIT) Annual Meeting 2016, Hamburg, Germany, 2016.

  10. Yujiang Xie and Dirk Gajewski. 3D CRS attribute search using particle swarm optimization. Wave Inversion Technology (WIT) Annual Meeting 2016, Hamburg, Germany, 2016.

  11. Parsa Bakhtiari Rad, Yujiang Xie, Claudia Vanelle and Dirk Gajewski. 3D time migration velocity model building using CRS-based prestack diffraction separation. Wave Inversion Technology (WIT) Annual Meeting 2015, Hamburg, Germany, 2015.

Working with...

Nicholas Harmon
None, None