TOMCAT Modelling Group
We study the chemical and dynamical processes which affect the composition of the natural and polluted atmosphere from the surface to about 100 km. We develop and use detailed 3-D models and use observations from a wide range of platforms.
Our research is largely based around the TOMCAT global atmospheric chemical transport model (and variants), but we also develop and use chemistry-climate models and regional models.
These pages give information about current group members, a summary of the model, an overview of our research, a record of news items and some blogs. There is also an archive of pages from the group leader Martyn Chipperfield. Use the navigation bar at the top of page.
For an archive of group photos click here.
News
Atmospheres Special Issue on Air Pollution Policy
New themed collection for Royal Society of Chemistry journal 'Environmental Science: Atmospheres' Air Pollution Policy and Atmospheric Change: Chemical Evidence and Insights Submissions are invited which address the impact of landmark air pollution and/or climate policies on present and future atmospheric chemistry and composition. Policies which are in scope range from national 'clean air' acts...
Maria Paula wins major conference poster prize
PhD student Maria Paula Velasquez Garcia has won the best student poster prize at the recent iCACGP-IGAC Conference in Crete, Greece. The iCACGP-IGAC Conference was held in Crete from September 6th to 11th, 2026. This prominent international event focused on atmospheric chemistry within the Earth system and attracted nearly 700 atmospheric science researchers, including 72...
Moorland burning and impact on air pollution
Managed burning on moorland in the UK led to millions of people being exposed to unsafe levels of fine particulate pollution, according to research led by Ailish Graham and the Royal Society for the Protection of Birds (RSPB). Prescribed burning is traditionally used to manage heather for grouse shooting across the UK uplands. Until recently...