Imperial College London

Adrian Umpleby

Faculty of EngineeringDepartment of Earth Science & Engineering




+44 (0)20 7594 6415a.umpleby Website




241Royal School of MinesSouth Kensington Campus





Adrian is currently leading the development and implementation of new algorithms for next-generation FWI technology (XWITM) at S-Cube, to eliminate human bias and provide a step-change in seismic imaging quality.

He gained his degree in Mathematics with Astronomy from the University of Leicester. He then became a Research Associate (later Fellow) in the Applied Modelling and Computation Group, before moving to S-Cube.

His main academic interest is in the development of novel computational & mathematical techniques for a range of applications. At Imperial this most recently included 3D FWI, which led to the spin-out company S-Cube. However, over the years, this also covered Computational Radiation Transport, Reactor Physics, Parallel Computing, Mesh Adaptivity, Nuclear Criticality Safety and Scientific Visualisation.

While at Imperial, he also developed much of the adaptive mesh technology originally used within Fluidity and the Imperial College Ocean Modelling software (ICOM), and played a key role, along with Dr C.R.E de Oliveira, in developing many of the methodologies currently implemented in EVENT, including: raytracing in near-void regions for AGR and MAGNOX reactor modelling, time-dependent radiation transport (nuclear criticality) and the MBM preconditioner for the main conjugate gradient solver in EVENT.


  • 2019-present: S-Cube
  • 1991-2019: Research Associate/Fellow, Imperial College London
  • 1987-1990: BSc, Maths with Astronomy, University of Leicester

Selected Publications

Journal Articles

Warner M, Ratcliffe A, Nangoo T, et al., 2013, Anisotropic 3D full-waveform inversion, Geophysics, Vol:78, Pages:R59-R80

Buchan AG, Pain CC, Umpleby AP, et al., 2012, A sub-grid scale finite element agglomeration multigrid method with application to the Boltzmann transport equation, International Journal for Numerical Methods in Engineering, Vol:92, ISSN:0029-5981, Pages:318-342

Warner M, Stekl I, Umpleby A, 2008, Efficientand effective 3D wavefield tomography, 70th European Association of Geoscientists and Engineers Conference and Exhibition 2008: Leveraging Technology. Incorporating Spe Europec 2008, Vol:3, Pages:1607-1611

Warner M, Stekl I, Umpleby A, 2008, 3D wavefield tomography: Synthetic and field data examples, Seg Technical Program Expanded Abstracts, Vol:27, ISSN:1052-3812, Pages:3330-3334

Warner M, Stekl I, Umpleby A, 2007, Full wavefield seismic tomography - Iterative forward modelling, in 3D, 69th European Association of Geoscientists and Engineers Conference and Exhibition 2007: Securing the Future. Incorporating Spe Europec 2007, Vol:2, Pages:888-892

Stekl I, Warner MR, Umpleby AP, 2007, 3D frequency domain waveform inversion - Synthetic shallow channel example, 69th European Association of Geoscientists and Engineers Conference and Exhibition 2007: Securing the Future. Incorporating Spe Europec 2007, Vol:2, Pages:893-897

Gorman, G.J., Piggott, M.D., Pain, C.C., et al., 2006, Optimisation based bathymetry approximation through constrained unstructured mesh adaptivity, Ocean Modelling, Vol:12, ISSN:1463-5003, Pages:436-452

Pain CC, de Oliveira CRE, Goddard AJH, et al., 2001, Transient criticality in fissile solutions - Compressibility effects, Nuclear Science and Engineering, Vol:138, ISSN:0029-5639, Pages:78-95

Pain CC, Umpleby AP, de Oliveira CRE, et al., 2001, Tetrahedral mesh optimisation and adaptivity for steady-state and transient finite element calculations, Computer Methods in Applied Mechanics and Engineering, Vol:190, ISSN:0045-7825, Pages:3771-3796


Nangoo T, Shah N, Lin T, et al., 2021, Accurate velocities and reduced cycle times from cloud-enabled full waveform inversion using XWI (AWI and RWI)

Debens HA, Nangoo T, Mancini F, et al., 2019, Penetrating below the diving waves with RWI, AWI, and FWI: A NWS Australia case study

Yao G, Shah N, Umpleby A, et al., 2018, High-resolution reflection FWI

Debens HA, Warner M, Umpleby A, et al., 2015, Global anisotropic 3D FWI, Pages:1193-1197, ISSN:1052-3812

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