We develop and run computer models of atmospheric chemistry which extend from the surface to around 100 km in the upper atmosphere. We use these models, together with extensive observations from the ground, ships, balloons, aircraft and satellites to study issues such as stratospheric ozone depletion, surface air quality and links between the surface and the atmosphere. These issues have a direct impact on human health and our ability to live sustainably on Earth.
We study both anthropogenic (e.g. CFC) and natural (e.g. forest) emissions of gases which can affect the atmosphere, over timescales from the pre-industrial period to the end of the century, and provide results that inform policy makers.
The Atmospheric Chemistry Group incorporates the research groups of Professor Martyn Chipperfield and Dr Steve Arnold. Within our group we develop and maintain the TOMCAT/SLIMCAT Chemical Transport Model for the UK community. We also use a range of trajectory models, land surface process models and global chemistry-climate models.
Our work feeds into national and international assessments on the state of the atmosphere and how it is changing. We have a long track record of informing the Montreal Protocol which limits the production of ozone-depleting substances.