About me

I am an atmospheric chemist working for John Pyle using the UKCA model. I worked on my Ph.D. at the University of Bristol in the department of Chemistry under the supervision of Prof. Dudley Shallcross. For my Ph.D. I performed field and numerical studies on short range dispersion in collaboration with the Met Office. This work involved the use of the NAME model (Numerical Atmospheric dispersion Modelling Environment) which is being used here in Cambridge by Matt Ashfold. The NAME model is a Lagrangian Particle Dispersion Model (LPDM). This work culminated in a series of experiments termed LaBTEx (Langford to Bristol Tracer Experiments). An example of the output from the NAME model to reproduce one of the experiments is shown below:

LaBTEx1

 

I am also very interested in the oxidation mechanisms of Volatile Organic Compounds (VOCs). In particular I have been working on the oxidation mechanism of isoprene (C5H8). This is a particularly important compound as it is a major VOC emission and its primary sources are tropical vegetation. There are many different chemical mechanism that can be used to describe the oxidation of isoprene. In our paper on intercomparing isoprene mechanisms we have shown that a great deal of variability in results for key species involved in the formation of ozone arrises from the choice of isoprene mechanism. More recently a lot of attention has been spent on trying to understand some of the flaws in our understanding of low NOx isoprene chemistry. In our recent paper we have looked at this issue in some detail using variants of the Master Chemical Mechanism.

 

For more information abot my research interests you may like to see my mendeley page for a list of publications.

Alex Archibald's bibliography

-

Recent bookmarks