Dr. NGAN Keith (顏文基)

Ph.D. in Physics , The University of Toronto

Visiting address
Phone: +852 34426702

Author IDs

Willing to take PhD students: yes


Dr. Keith Ngan obtained his B.Sc. in Physics and Chemistry from the University of British Columbia and his M.Sc. and Ph.D. in Physics from the University of Toronto. Subsequently he was a postdoctoral fellow at the University of Chicago and a research associate at McGill University. In 2008 he moved to the UK Met Office, where he worked as a senior research scientist in the numerical weather prediction division. In 2013 he joined City University of Hong Kong as an Assistant Professor in the School of Energy and Environment.

Dr. Ngan's research seeks to improve understanding of basic dynamical processes in the atmosphere through high-resolution numerical modelling. He is especially interested in interdisciplinary research, more specifically the application of techniques and approaches from applied mathematics and fluid dynamics to practical atmospheric problems. His main areas of expertise are turbulence, data assimilation, atmospheric modelling and scalar mixing and dispersion. The current focus of his research is urban boundary-layer meteorology.

Research Interests/Areas

  • atmospheric dynamics
  • fluid dynamics
  • numerical weather prediction
  • turbulence
  • urban meteorology


Research group

Current members

  • Postdoctoral fellows
    Gantuya Ganbat (PhD Seoul National University), September 2016 - date

    Ghar Ek Lau (PhD University of New South Wales), September 2016 – date

  • PhD students
    Guangdong Duan, September 2014 – date

  • Research Assistant
    K.W. Wong, July 2016 – date

    J. Chang & Y. Chen, July 2016 – date

Former members

  • Postdoctoral fellows
    James G. Jackson (PhD University College London), April 2015 - date

    Ka Wai Lo (PhD University of Illinois at Urbana-Champaign), November 2013 – January 2016

  • BEng Final-Year Project Students
    G. Xu (Now MSc, Columbia University), D. Kong, G. Ma, 2015-16

  • Summer interns
    T. Ying (2014; currently PhD at University of Edinburgh) 




Recent talks

  • "Dispersion and ventilation in urban street canyons", School of Mathematics, University of Edinburgh, December 2016.
  • "Atmospheric predictability from global to urban scales", Earth System Science Programme, Chinese University of Hong Kong, November 2016.
  • "Characterising urban ventilation and exposure with Lagrangian diagnostics", Workshop on Photochemical Smog in China, October 2016. 
  • "Some issues in urban-scale NWP", Numerical Weather Prediction Forum, Hong Kong Observatory, March 2016.
  • "Predictability and linear error dynamics of turbulent flow in street canyons", American Met. Society Joint Conference on Air Pollution Meteorology and its Applications, January 2016.