Helena King
Biography
I am a PhD student at the University of York, working in the Wolfson Atmospheric Chemistry Laboratories under Prof Mat Evans. I previously studied for an Integrated Masters in Chemistry at York, graduating in 2024. My MChem project was also based in WACL, looking at implementing the gas-phase formation of iodic acid (HIO3) in a global chemical model (GEOS-Chem) to determine its contribution to the gas- and aerosol-phase in the troposphere, and evaluating the current uncertainties with regards to the modelling of iodine compounds. Outside of my studies, I row competitively for the University, am a member of York Baptist Church and enjoy horse riding and music.
Qualifications
MChem Chemistry
Research interests
Atmospheric chemistry, climate and computational modelling
Project title
Climate impacts on tropospheric oxidation
Supervisors
Funding
NERC YES-DTN
Project outline
Ozone and methane are the most significant climate gases after carbon dioxide, and are controlled/removed respectively by tropospheric oxidation chemistry. Climate models are used to understand the past concentrations of these gases, as well as to explore how different scenarios will affect their futures. However, different models tend to disagree on their predictions, and it is currently difficult to diagnose and quantify the factors contributing to the differences.
This project will use data from the Aerosol Chemistry Model Intercomparison Project (AerChemMIP) to consider these differences, aiming to separate them into differences in the chemistry, physics and emissions of the models. When data from the new AerChemMIP2 become available, this project will make use of the additional diagnostics to extend the analysis.
