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Yusuf Hamied Department of Chemistry


I am interested in methane and climate feedbacks.  I started my PhD in October 2019, evaluating the treatment of methane in climate models. The main metrics used for comparison included methane lifetime, interhemispheric gradient and vertical profile. Most models prescribe a constant mixing ratio for methane at the surface and this means there are limitations to the feedbacks which can be included in the system.

I have been using a new methane emissions-driven version of the UK Earth System Model (UKESM1) which includes interactive methane emissions, as well as feedbacks such as due to wetland emissions. Using this model I have investigated a net-zero anthropogenic methane scenario, looking at the composition and climate impacts, as well as air quality benefits. I am interested in quantifying the feedback of methane on itself in this new model and investigating how the chemistry included in the model affects the results.

4th Year Project

As part of my masters project I developed a 1D model to simulate isoprene emissions within a forest canopy. This was based on the measurements taken in the WISDOM field campaign in Wytham Woods in the growing season of 2018.


Continuous Isoprene Measurements in a UK Temperate Forest for a Whole Growing Season: Effects of Drought Stress During the 2018 Heatwave
V Ferracci, CG Bolas, RA Freshwater, Z Staniaszek, T King, K Jaars, F Otu-Larbi, J Beale, Y Malhi, TW Waine, RL Jones, K Ashworth, NRP Harris
– Geophysical Research Letters
Modelling the effect of the 2018 summer heatwave and drought on isoprene emissions in a UK woodland
R Jones, CG Bolas, Z Staniaszek, F Otu-Larbi, V Ferracci, Y Malhi, NRP Harris, O Wild, K Ashworth
– Global Change Biology
Climate and composition impacts of a net-zero anthropogenic methane future using an emissions-driven chemistry-climate model
Z Staniaszek, PT Griffiths, GA Folberth, FM O'Connor, AT Archibald

Research Groups

Telephone number

01223 748895

Email address