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Climate change is one of the greatest threats to environmental and economic health, forcing the hand of governments, academia and industry to take increasing action towards a globally sustainable future. The dynamics of the atmosphere play a central role in the climate and climate change, and yet, this role is not well understood. A search for a better understanding of the atmosphere’s inherent behaviour and its relation to the climate are at the centre of the research of Greg Lewis, PhD, Associate Professor of Mathematics in the Faculty of Science. His research focuses on the mathematical analysis of geophysical fluid dynamics, the naturally occurring, large-scale flows in the ocean and atmosphere. Although many factors such as changes in temperature, rotation, topography and the formation of clouds affect the dynamics of atmospheric systems, Dr. Lewis’ research centres on the effects of the primary factors, namely, heating and rotation. In particular, his research aims to determine the flow patterns that are expected as these factors are varied. A better understanding of such atmospheric dynamics may lead to improvements in the global climate models used to predict climate change. Appointed to his current role in 2008, Dr. Lewis joined UOIT in 2003 as its first Assistant Professor of Mathematics. Since then, he has been rigorously building the university’s Applied and Industrial Mathematics, and Modelling and Computational Science undergraduate and graduate programs and growing the overall department. His early teaching and research influence has helped distinguish UOIT’s unique mathematics-based programs. His inherent desire to understand how things work, initially led Dr. Lewis towards physics, earning his Bachelor of Science in Honours Physics and his Master of Science in Physics from McGill University, before shifting gears and completing his Doctorate in Applied Mathematics from the University of British Columbia (UBC). Subsequently, he was awarded three post-doctoral fellowships with the Peter Wall Institute for Advanced Studies in the Departments of Mathematics and Earth and Ocean Sciences at UBC, as well as NSERC and Jerrold E. Marsden fellowships with The Fields Institute of Research in Mathematical Sciences at the University of Toronto. He has been an invited Distinguished Alumni Lecturer at UBC’s Institute of Applied Mathematics, and is an Adjunct Professor in the Department of Mathematics and Statistics at York University in Toronto.


Board of Directors, Canadian Applied and Industrial Mathematics Society (CAIMS)

January 1, 2013

Since 2013, Dr. Lewis has been a Board of Directors member-at-large, and member of the CAIMS Doctoral Dissertation Awards Committee. CAIMS has a growing presence in industrial, mathematical, scientific and technological circles within and outside of Canada.

Editor, Fields Institute Mathematics-in-Industry Case Studies Journal

January 1, 2008

This journal aims to meet the publication needs of the burgeoning community of mathematicians who work on problems that are important to industry. Its central theme is the stimulation of innovative mathematics, statistics and related computational methods, by the modelling and analysis of such problems across engineering and the physical, biological and social sciences. Emphasis is on case studies drawn from actual applications of mathematics to industrial problems.

University of British Columbia

PhD - Applied Mathematics

McGill University,

MSc - Physics

McGill University

BSc - Honours Physics
  • Applications of Numerical Bifurcation Analysis

    $55000  | April 1, 2014

    Awarded by: NSERC Discovery Grant
    As principal investigator of this five-year research project, Dr. Lewis is focused on the bifurcation analysis of nonlinear partial differential equations using a combination of analytical and numerical methods with applications in geophysical fluid dynamics. His research aims to improve the understanding of how atmospheric systems are formed which may lead to improved global climate models.

  • Canadian Applied and Industrial Mathematics Society

  • Society for Applied and Industrial Mathematics


  • Past speaking engagements
    • A Numerical Study of the Effects of Inhomogeneous Media in Diffusion Weighted Imaging

      Waterloo, Ontario
      June 7, 2015

      2015 Applied Mathematics, Modelling and Computational Science-Canadian Applied and Industrial Mathematics Congress

    • Invited Talk: Hopf Bifurcation with 1:2 Spatial Resonance in an Air-Filled Differentially Heated Rotating Annulus

      Barcelona, Spain
      July 20, 2014

      Dynamical Systems in Fluid Mechanics Session of the 11th World Congress on Computational Mechanics/5th European Conference on Computational Mechanics/6th European Conference on Computational Fluid Dynamics

    • Invited Talk: Matrix-Free Methods for Electroconvection

      Saskatoon, Saskatchewan
      June 22, 2014

      Canadian Symposium on Fluid Dynamics/2014 Canadian Applied and Industrial Mathematics Annual Meeting

    • Invited Talk: The Primary Flow Transition in the Baroclinic Annulus: Prandtl Number Effects

      Berlin, Germany
      September 24, 2013

      EUROMECH Colloquium 552

    • Single Parameter Spatiotemporal Model for the Depth Perception in Weakly Electric Fish

      Québec City, Québec
      June 16, 2013

      2013 Canadian Applied and Industrial Mathematics Annual Meeting

    • Invited Talk: Secondary Transitions and Instabilities in Geophysical Fluids

      Toronto, Ontario
      June 24, 2012

      Canadian Symposium on Fluid Dynamics/2012 Annual Meeting of the Canadian Applied and Industrial Mathematics Society

    • Secondary Transitions and Instabilities in Geophysical Fluids

      University of Guelph
      May 23, 2012

      SHARCNet Research Day 2012

    • Invited Talk: Mixed-Mode Solutions in an Air-Filled Differentially Heated Rotating Annulus. Spatial Resonance

      Toronto, Ontario
      December 9, 2011

      Fluid Dynamics Symposium of the Canadian Mathematics Society Winter Meeting

    • Invited Talk: Secondary Flow Transitions in the Differentially Heated Rotating Annulus

      Vancouver, British Columbia
      July 18, 2011

      International Congress of Applied and Industrial Mathematics - ICIAM 2011

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