Dudley Shallcross

Biography

I am a Professor in the School of Chemistry. I did my first degree, in Chemistry and Mathematics at the University of Southampton (1985-1989) and then did a D.Phil. with Professor Richard Wayne at Oxford (1990-1993). There I carried out laboratory studies of radical reactions of importance in the troposphere and lower stratosphere.  

Research Interest

There are three strands to my research in Atmospheric Chemistry. First, we have developed a range of computer models that describe the troposphere (~ lowest 10 km) on urban, regional and global scales and have developed the CRI (Common Representative Intermediates) methodology. The CRI methodology allows us to generate chemical schemes that are compact and traceable back to smog chamber data. Hence we are able to estimate chemical model uncertainty and in addition to generate secondary organic aerosol in a self consistent way for the first time. A particular focus has been the interaction of chemical emissions from terrestrial vegetation and the atmosphere. Using the CRI we have been able to investigate elements of the degradation of isoprene (C5H8) in the atmosphere that provide clues about how the OH radical may be recycled efficiently. Such recycling is important in determining greenhouse gas lifetimes in past, present and future climates.