Senior Lecturer LEE, Adrian Michael

B. A., 1992, University of Cambridge; M. A., 1996, University of Cambridge; Ph. D., 1997, University of Cambridge; Postdoctoral Research Associate 1996-2002, University of Cambridge; Singapore Millennium Foundation Fellow, 2002-2004, National University of Singapore.

Contact Information
Department of Chemistry, NUS 
3 Science Drive 3 
Singapore 117543 
Office: S7-04-13
Tel: (65) 6516 5130
Fax: (65)-6779-1691

Research Interests

Atmospheric Science and Computational Chemistry

The bulk of my research involves the use of numerical models to study the present state of the atmosphere and its evolution. Of particular concern is the evolution of ozone in the atmosphere. 

In the stratosphere, ozone acts as a shield preventing potentially lethal ultraviolet radiation reaching the biosphere. In this region of the atmosphere, ozone has been declining and my research in this area has focused on understanding the development and future evolution of the Antarctic Ozone Hole. A significant result of my research has been to establish the fact that climate change induced by greenhouse gases will delay the future recovery of the ozone hole despite the expected decline in halocarbons following the implementation of the Montreal Protocol.

In the troposphere, ozone is the most irritant of the common air pollutants and exposure to large concentrations causes inflammation of the respiratory tract and morphological changes in the lung. Studies indicate that monthly-averaged ozone concentrations will exceed 130 parts per billion over large parts of Southeast Asia towards the end of the century well in excess of recommended thresholds to exposure. My research has attempted to assess the environmental impact and economic cost of the present behaviour and the future evolution of tropospheric ozone and other greenhouse gases. The strategy has been to couple a two-dimensional chemistry-climate model to an environmental macroeconomic model. This model is being used to identify long-term abatement strategies at minimum economic cost.

On a more theoretical level, I am also interested in calculating, from first principals, rate coefficients for some of the more important atmospherically significant reactions.

Representative Publications

  • Modelling the interannual variability of the Antarctic ozone hole 1996-2002, A. M. Lee, G. A. Millard and J. A. Pyle, submitted to J. Atmos. Sci., (2004).
  • Cumulative mixing inferred from tracer relationships, O. Morgenstern, A. M. Lee and J. A. Pyle, J. Geophys. Res., 108, doi:10.1029/2002JD002098, (2003).
  • Diagnosing ozone loss in the extratropical lower stratosphere, A. M. Lee, R. L. Jones, I. Kilbane-Dawe and J. A. Pyle, J.Geophys. Res., 107, doi:10.1029/2001JD000538, (2002).
  • The impact of the mixing properties within the Antarctic stratospheric vortex on springtime ozone loss, A. M. Lee, H. K. Roscoe, A. E. Jones, P. H. Haynes, E. F. Shuckburgh, M. W. Morrey and H. C. Pumphrey, J. Geophys. Res., bf 106, 3203-3211, (2001).
  • Model and measurements show Antarctic ozone loss follows edge of polar night, A. M. Lee, H. K. Roscoe and S. Oltmans, Geophys. Res. Lett., 27, 3845-3848, (2000).
  • Ground-based FTIR measurements with high temporal resolution, W. Bell, C. P. Walsh, P. T. Woods, T. D. Gardiner, M. P. Chipperfield and A. M. Lee, J. Atmos. Chem., 30, 131-140, (1998).
  • Midwinter start to Antarctic ozone depletion: Evidence from observations and models, H. K. Roscoe, A. E. Jones and A. M. Lee, Science, 278, 93-96, (1997).
  • Three-dimensional chemical forecasting: a methodology, A. M. Lee, G. D. Carver, M. P. Chipperfield and J. A. Pyle, J. Geophys. Res., 102, 3905-3919, (1997).