Tel: +966 (013) 860-8716
Fax: +966 (013) 860-2595

Location: Bldg. 76, Rm. 2240

Professor Stewart A. Greenhalgh

Saudi Aramco Chair Professor, Geosciences Department

Stewart Greenhalgh was born in Sydney, Australia and holds British and Australian citizenship. Prior to joining CPG in August 2016, he was Professor of Geophysics at ETH Zürich, Switzerland for 10 years. He is also Emeritus Professor of Physics at the University of Adelaide, Australia.  He has worked in academia for many years but has also been engaged as a consultant with several oil and mining companies and government agencies. He has enjoyed periods of sabbatical leave at Department of Engineering Science, Oxford University, UK; Department of Electrical Engineering, University of Minnesota, USA; Department of Physics, University of Toronto, Canada,  and Institute of Geophysics, Swiss Federal Institute of Technology. He has published over 250 journal articles in various areas of experimental and theoretical geophysics. Stewart has supervised 16 post-doctoral fellows, 36 Ph.D. students, and 28 M.Sc. students. He is an Editor of Pure and Applied Geophysics and the Journal of Geophysics and Engineering.

Educational Qualification

  • D.Sc., Geophysics, University of Sydney, 1997
  • Ph.D., Geophysics/Mathematics/Physics, University of Minnesota, USA, 1979. (coursework GPA of 4 on a scale of 4)
  • M.Sc., Theoretical Seismology, University of Sydney, 1976.
  • B.Sc. (Hons I), Physics/Mathematics, University of Sydney, Australia, 1972.

Research Interests

Seismic exploration; elastic wave theory; numerical seismic modelling; digital signal processing; inverse theory; full waveform inversion; laboratory seismic modelling; earthquakes; crustal geophysics; electrical and electromagnetic imaging; mining, petroleum and environmental applications of geophysics.

Selected Publications

Publications from (2012-2019):

  • Xue, G., Bai, C., Yan, S., Greenhalgh, S., Li, M & Zhou, N. 2012. Deep sounding TEM investigation method based on a  modified fixed central loop system: Journal of Applied Geophysics 76, 23-32 (2012)
  • Zhou, B., Greenhalgh, S.A. & Maurer, H.  2012. 2.5-D frequency domain seismic modelling in heterogeneous, anisotropic media using a Gaussian quadrature grid  technique: Computers and Geosciences 39, 18-33
  • Sinclair, C., Greenhalgh, S.A. and Zhou, B. Wavenumber sampling issues in 2.5D frequency-domain seismic modelling: Pure & Applied Geophysics 169, 141-156 (2012)  DOI 10.1007/s0024-011-0277-3
  • Coscia, I., Linde, N., Greenhalgh, S.A., Günther, T. & Green, A.G. 2012. A  filtering method to correct time-lapse 3D ERT data and improve imaging of natural aquifer dynamics: Journal of Applied Geophysics 80, 12-24  DOI: 10.1016/j.jappgeo.2011.12.015
  • Zhou, B., Greenhalgh, S.A. & Greenhalgh, M. 2012. Wavenumber sampling strategies for 2.5D frequency-domain seismic wave modelling in general anisotropic media: Geophysical Journal International  188, 223-238.  D0I: 10.1111/j.1365-246X.2011.05246.x
  • Maurer, H., Greenhalgh, S.A., Manukyan, E., Marelli, S. & Green, A.G. 2012. Receiver coupling effects in seismic waveform inversions: Geophysics 77(1), R57-R69
  • Lehmann-Horn, J., Hertrich, M., Greenhalgh, S. & Green, A. 2012. On the sensitivity of NMR in the presence of electrical conductivity anomalies: Geophysical Journal International 189, 331-342. DOI: 10.1111/j.1365-246X.2012.05380.x
  • Huang, C., Bai, C.Y., Zhou, D. & Greenhalgh, S.  2012.   2D/3D seismic simultaneous inversion for  the velocity model and interface geometry using multiple classes of arrivals: Bulletin of  Seismological Society of America 180 (2), 790-801
  • Manukyan, E., Latzel, S., Maurer, H., Marelli, S. & Greenhalgh, S. 2012. Exploitation of information content in elastic waveform inversions: Geophysics 77(2), R105-R116, doi: 10.1190/GEO2011-0184.1
  • Coscia, I., Linde, N., Greenhalgh, S.A., Vogt, T. & Green, A.G.2012.  Estimating traveltimes and groundwater flow patterns using 3D time-lapse crosshole ERT imaging of electrical resistivity fluctuations induced by infiltrating river water: Geophysics 77(4), E239-E250,doi 10.1190/GEO2011-0328.1.
  • Meles, G., Greenhalgh, S.A., Green, A.G.,  Maurer, H. & van der Kruk, J. 2012. GPR full waveform sensitivity and resolution analysis using an FDTD adjoint method:  IEEE Transactions on Geoscience & Remote Sensing 50(5), 1881-1896.
  • Greenhalgh, S.A., Liu, X. & Zhou, B. 2012.Velocity and attenuation dispersion relations for the effective Biot model: total field formulation: Near Surface Geophysics 10, 197-206: doi 10.3997/1873-0604.2011050
  • Bai, C.Y., Huang, G. Tang, X. & Greenhalgh, S.A. 2012. Multi-valued reflection arrival tracking via an extremal solution of the summed ray field: Journal of Geophysics & Engineering 9, 549-557
  • Manukyan, E, Maurer, H, Marelli, S., Greenhalgh, S.A. & Green, A. 2012. Seismic monitoring of  radioactive waste repositories: Geophysics  77(6), EN73-EN83
  • Ren, Z., Kalscheur, T., Greenhalgh, S. & Maurer, H. 2013. Boundary element solutions for broadband 3D geo-electromagnetic problems accelerated by an adaptive multi-level fast multipole method: Geophysical Journal International 192, 473-499
  • Huang, G., Bai, C.Y. and Greenhalgh, S.A. 2013. A fast and accurate scheme for traveltime computations and raypath determinations of global seismic phases in a laterally heterogeneous model: Seismological Research Letters 84, 505-515
  • Auer, L., Nuber, A., Greenhalgh, S., Maurer, H. & Marelli. 2013. A critical appraisal of asymptotic 3D-to-2D data transformation in seismic full waveform inversion: Geophysics78(6), R235-R247, doi: 10.1.1190/geo2012.0382.1
  • Meles, G., Greenhalgh, S., Maurer, H. & Green, A. 2013. Image appraisal of full waveform inverted GPR data. PIERS Proceedings, Stockholm, 58-64.
  • Meles, G., Greenhalgh, S., Maurer, H. & Green, A. 2013. Some ideas yet unattempted in georadar full waveform inversion. PIERS Proceedings, Stockholm, 714-720.
  • Ren, Z., Kalscheur, T., Greenhalgh, S. & Maurer, H. 2013. A goal-oriented adaptive finite-element approach for plane wave 3D electromagnetic modeling: Geophysical Journal International 194, 700-718.
  • Huang, G., Bai, C.Y. & Greenhalgh, S.A. 2013. Fast and accurate global multi-phase arrival tracking: The irregular shortest path method in a 3D spherical earth model: Geophysical Journal International  194(3), 1878-1892.
  • Bai, C.Y., Huang, G.J., Li, X.L., Zhou, B. & Greenhalgh, S. 2013. Ray tracing of multiple transmitted/reflected/converted waves in 2-D/3-D layered anisotropic TTI media and application to crosswell traveltime tomography: Geophysical Journal International 195, 1068-1087
  • Greenhalgh, S.A. & Manukyan, E. 2013. Seismic reflection in hard rock mineral exploration: lessons from numerical modeling: Journal of Engineering and  Environmental Geophysics18(4), 281-296
  • Ren, Z., Kalscheur, T., Greenhalgh, S. & Maurer, H. 2013. A hybrid boundary element-finite element  approach for plane wave 3-D electromagnetic  modelling : Journal of Computational Physics 258, 705-717
  • Greenhalgh, S.A., Liu, X. & Zhou, B. A model for determination of effective permeability from acoustic wavespeed and attenuation in a rigid two-phase porous medium: Near Surface Geophysics 12, 391-404.
  • Huang, G.J., Bai, C.Y., Li, X.  & Greenhalgh, S.A.   2014. 3-D simultaneous inversion for velocity and reflector geometry using multiple classes of arrivals in a spherical co-ordinate frame: Journal of Seismology 18(1), 123-135.
  • Bai, C.Y., Li, X.W. , Huang, G. & Greenhalgh, S. 2014. Simultaneous inversion for velocity and reflector geometry using multi-phase Fresnel volume rays: Pure & Applied Geophysics  171, 1089-1105.   doi 10.1007/s00024-013-0686-6
  • Liu, X. & Greenhalgh, S. 2014. Reflection and transmission coefficients for an incident plane shear wave at an interface separating two dissimilar poroelastic solids: Pure & Applied Geophysics 171, 2111-2127. DOI 10.1007/s00024-014-0844.5
  • Meier, P., Kalscheur, T., Podgorski, J., Green, A., Greenhalgh, S., Rabenstein, L., Doetsch, J., Kinzelbach, W., Auken, E., Mikkelsen, P., Foged, N., Jaba, B., Tschoso, G. & Ntibinyane. 2014. Hydrogeophysical investigations in the western and north-central  Okavango Delta (Botswana) based on helicopter and ground-based and transient electromagnetic data and electric resistance tomography: Geophysics 79 (5), B201-B211
  • Ren, Z., Kalscheuer, T., Greenhalgh, S. & Maurer, H. 2014. A finite-element-based domain-decomposition  approach for plane wave 3D electromagnetic modeling: Geophysics 79(6), E255-E268
  • Zhou, B, Mason, I & Greenhalgh, S. 2015. Seeing coal top ahead of the drill bit through Seismic-While-Drilling: Geophysical Prospecting 63, 166-182. DOI 10.1111/1365-2478.12172.
  • Bai, C.Y., Huang, G., Li, X.W & Greenhalgh, S. 2015. 3D simultaneous traveltime inversion for velocity structure, hypocentre locations and reflector geometry using multiple classes of arrivals: Pure & Applied Geophysics, 172, 2601-2620.
  • Wiese, T., Greenhalgh, S.A, Zhou, B, Greenhalgh, M. & Marescot, L. 2015. Resistivity inversion in 2D anisotropic media: numerical experiments: Geophysical Journal International 201, 247-266
  • Mo, Y., Greenhalgh, S.A., Robertsson, J. & Karaman, H. 2015. The development and testing of a 2D laboratory seismic modelling system for heterogeneous structure investigations: Journal of  Applied Geophysics 116, 224-235.
  • Van Manen, D.J, Vasmel, M, Greenhalgh, S.A. & Robertsson, J. 2015. Broadband cloaking and holography using exact boundary conditions: Journal of Acoustical Society of America137(6), EL 415
  • Grab, M., Zurcher, B., Maurer, H. & Greenhalgh, S. 2015. Seismic velocity structure of a fossilized Icelandic geothermal system: a combined laboratory and field study: Geothermics57, 84-94.
  • Bagheri, M, Greenhalgh, S.A., Khojasteh, A. & Rahimian, M 2015. Dispersion of Rayleigh, Scholte, Stoneley, and Love waves in a  model consisting of a liquid layer overlying a two-layer transversely isotropic solid medium: Geophysical Journal International 203, 228-245.
  • Jordi, C., Schmelzbach, C. & Greenhalgh, S.A. 2016. Applications of fat ray seismic  tomography to near surface exploration: Journal of Applied Geophysics 131, 202-213
  • Bagheri, A., Rahimian, M., Khojasteh, A & Greenhalgh, S.A. 2016. Dynamic Green’s functions for a liquid layer overlying a transversely isotropic half-space due to an arbitrary source excitation within the liquid: Wave Motion 63, 83-97
  • Schmelzbach, C., Greenhalgh, S.A., Reiser, F., Girard, J.F. et al. 2016. Advanced seismic processing techniques and their potential for geothermal exploration: Interpretation 4, SP1-SP18
  • Sollberger, D., Schmelzbach, C., Robertsson, J., Greenhalgh, S., Nakamura, Y. & Khan, A. 2016. The shallow elastic structure of the lunar crust: new insights obtained by seismic wavefield gradient analysis: Geophysical  Research Letters 43(19), 10078-10097
  • Bagheri, A., Greenhalgh, S., Khojasteh, A., Rahimiian, M. & Atternejad, R. 2016. Tsunami generation and associated waves in the water column and seabed due to asymmetrical earthquake motion in an anisotropic substratum: Journal of Geophysical Research: Oceans 121 (10), 7701-7715, doi 10.1002/2016JCO11944
  • Liu, X., Greenhalgh, S., Zhou, B. & Heinson, G. 2016.Generalized poro-viscoelastic model based on effective Biot theory and its application to borehole guided wave analysis: Geophysical Journal International 207(3), 1472-1483, doi 10.1093/gji/ggw345
  • Bagheri, A.,  M., Khojasteh, A., Rahimian, A. & Greenhalgh, S.A. 2017. Asymmetric elastic wavefields in a liquid-anisotropic solid  model  due to an arbitrary source excitation within the halfspace:  Applied Ocean Research 62, 119-138
  • Mildner, C., Broggini, F., Robertsson, J., van Manen, D. & Greenhalgh, S.A. 2017. Target-oriented velocity analysis using Marchenko-redatumed data: Geophysics 82(2), R75-R86.
  • Reiser, F., Schmelzbach, C., Maurer, H.,  Greenhalgh, S. & Hellwig, O.  2017. Optimizing the design of vertical seismic profiling (VSP) for imaging fracture zones over hardrock basement geothermal environments: Journal of  Applied Geophysics135, 25-35
  • Grab, M., Quintal, B., Caspari, B., Maurer, H. & Greenhalgh, S. 2017. Numerical modeling of fluid effects on seismic properties of fractured magmatic geothermal reservoirs: Solid Earth 8, 255-279., doi 10.5194/se2016-144
  • Li, B., Bai, C.Y., Wang, Q.L. & Greenhalgh, S. 2017. A comparative analysis of two-dimensional multi-valued ray tracing techniques : Arabian Journal of Geosciences, 10(22) 481-492, ,doi org/10.1007/s12517-017.3272-x
  • Bai, C.Y., Li, X.W., Wang, D. & Greenhalgh, S. 2017. The effects of ignoring Earth curvature on near-regional travel time tomography and earthquake locations: Pure & Applied Geophysics174, 4329-4342 doi .org/10.1007/s00024-017-1671-2
  • Xing-Wang Li, Chao-ing Bai, Xiao-Peng Yue and Stewart Greenhalgh. 2018. Multi-phase arrival tracking using tetrahedral cells within a 3-D layered TTI anisotropic model involving undulating topography and irregular interfaces: Journal of Geophysics and  Engineering 15 (1), 192-206, doi 10.1088/1742-2140/aa84f3
  • Liu, X., Greenhalgh, S.A., Zhou, B. & Greenhalgh, M. 2018. Effective Biot theory and its generalization to poro-viscoelastic models: Geophysical Journal International 212, 1255-1273
  • Grab, M., Quintal, B., Caspari, E., Maurer, H. & Greenhalgh, S.A. 2017. The effect of boiling on seismic properties of water-saturated fractured rock: Jour. Geophys. Res – Solid Earth  122, 9228-9252,   DOI: 10.1002/2017JB014608
  • Sollberger, D., Greenhalgh, S.A., Schmelzbach, C., van Renterghem, C. & Robertsson, J.O. 2018. 6-C polarization analysis using point-measurements of translational and rotational ground motion: theory and applications: Geophys. J. Int. 213(1), 77-97  DOI 10.1093/gji/ggx542
  • Xing-Wang Li, Chao-ing bai, Xiao-Peng Yue and  Stewart Greenhalgh. 2018. Multi-phase arrival tracking using tetrahedral cells within a 3-D layered TTI anisotropic model involving undulating topography and irregular interfaces: J. Geophys. Eng.15 (1), 192-206, doi 10.1088/1742-2140/aa84f3
  • Huang, X. & Greenhalgh, S.A. 2018. On the solution of the complex eikonal equation in acoustic VTI media: a perturbation plus optimization scheme: Geophys. J. Int. 214(2), 907-932, doi.org/10.1093/gji/ggy159
  • Huang, X. & Greenhalgh, S.A. 2018. Linearized formulation and approximate solution for the complex eikonal equation in orthorhombic media and application of complex seismic traveltime: Geophysics 83(3) C115-C136,  doi.org/10.1190/GEO2017-0620.1)
  • Becker, T.S., van Manen, D.J., Donahue, C., Schmidt, D., Greenhalgh, S.A., Blum, T. & Robertsson, J. 2018. Immersive wave propagation experimentation: physical implementation and 1D acoustic results: Physical Review X 8, 031011 ( 2160-3308/18/8(3)/031011(14)
  • Reiser, F., Schmelzbach, C., Sollberger, D., Maurer, H., Greenhalgh, S., Planke, S., Köstner, F., Flóvenz, O., Giese, R., Halldórsdóttir, S. & Hersir, G. 2018. Imaging the high-temperature geothermal field at Krafla using vertical seismic profiling: Journal of Volcanology and Geothermal Research , doi.org/10.1016/j.volgeores2018.10.019
  • Xu Liu, Stewart Greenhalgh, Bing Zhou, and Mark Greenhalgh. 2018. Frequency-domain seismic modeling in heterogeneous porous media using the mixed-grid finite-difference method: Geophysical Journal International  216, 34-54,  doi 10.1093/gji/ggy410
  • Greenhalgh, Stewart, David Sollberger, Cedric Schmelzbach & Matthew Rutty. 2018. Single-station polarization analysis of seismic wavefields: a tutorial: Advances in Geophysics 59 , chapter 2, Academic Press, pp. 123-176
  • Xingguo Huang & Stewart Greenhalgh. 2018. Traveltime approximation for strongly anisotropic media using the homotopy analysis method: Geophysical Journal International 216(3), 1648-1664
  • Bai, Chao-ying, Jiayu Sun, Xingwang Li & Stewart Greenhalgh. 2018. 3-D multiparameter type traveltime tomography in a spherical co-ordinate frame: comparison of double and triple class simultaneous inversions: Earthquake Science 31, 62-74. Doi:10.29382eqs-2018-0062-3
  • Xu Liu, Stewart Greenhalgh, Bing Zhou and Mark Greenhalgh. 2019. Frequency-domain seismic modeling in heterogeneous porous media using the mixed-grid finite-difference method: Geophysical Journal International 216, 34-54, doi 10.1093/gji/ggy410 )
  • Xu Liu and Stewart Greenhalgh. 2019. Frequency-domain FD modeling with an adaptive NPML boundary condition for poro-viscoelastic waves upscaled from effective Biot theory: Geophysics 84(4), WA59-WA70, org/10.1.1190/geo2018-0372-1)
  • Xing-Wang Li, Chao-Ying Bai, C.Y & Stewart Greenhalgh. 2019. Ray tracing directly in a 3-D ellipsoidal earth model for multiphase global arrivals: Pure & Applied Geophysics (published on line, DOI 10.1007/s00024-019-02186-4 )
  • Bing Zhou, Moosoo Won, Stewart Greenhalgh and Xu Liu. 2019. Generalized stiffness reduction method to remove the artificial edge effects for seismic wave modeling in elastic anisotropic media: Geophysical Journal International ( revision August 2019)
  • Sollberger, David, Schmelzbach, Cedric, Manukyan, Edgar, Greenhalgh, Stewart, Van Renterghem, Cederic and Robertsson, Johan. 2018. Accounting for receiver effects in seismic wavefield gradiometry: Geophys. J. International (in press, accepted July 2019)
  • Xu Liu and Stewart Greenhalgh. 2019. Fitting viscoelastic mechanical models to seismic attenuation and velocity dispersion observations and application to full waveform modelling : Geophysical Journal International (in press, accepted for publication August 27, 2019) DOI : 10.1093/gji/ggz395
  • Yang, S.B., Bai, C.Y. and Greenhalgh, S.A. 2019. Seismic wavefield modeling in two-phase media incorporating undulating topography with the modified Biot/Squirt model using a curvilinear grid finite difference method: Geophysical Prospecting, Early View publication on-line  doi 10.1111/1365-2478.12844
  • Qi Hao and Stewart Greenhalgh. 2019. The generalized standard-linear solid model and the corresponding viscoacoustic wave equations revisited: Geophysical Journal Int. ( in press, accepted for publication September 2, 2019)

Awards & Honors

  • Leo Cotton Prize, University of Sydney, 1971
  • L A Richardson Memorial Prize, University of Sydney, 1972
  • Australian Government Commonwealth Scholarship, 1969-72
  • Fulbright Fellowship, 1976-1979
  • Edgeworth David Travelling Fellowship, 1976
  • University of Minnesota Doctoral Dissertation Fellowship, 1978-1979
  • Laric Hawkins Award for Technical Innovation, Australian SEG 1992
  • Who’s Who in Australia, 1992
  • Elected Fellow of Australian Academy of Technological Sciences and Engineering, 2000
  • Centennial Medal, Service to Geophysics – Australian Governor General, 2001
  • Elected Fellow, UK Institute of Physics, 2005
  • Ludger Mintrop Award, European Association of Geoscientists and Engineers, 2013
  • Distinguished Achievement award (to ETH Zurich AUG  Group of which I was  a member for 9 years), Society of Exploration Geophysicists, 2015
  • Conrad Schlumberger award, European Association of Geoscientists and Engineers, 2016