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Yusuf Hamied Department of Chemistry


I am interested in interactions between the biosphere and climate, mediated via the chemical oxidation of biogenic volatile organic compouds (BVOCs). BVOCs affect the atmosphere's oxidising capacity and thus methane lifetime (with consequences for the Earth's radiative budget) and contribute to aerosol formation and growth. Aerosols scatter radiation and aid cloud formation thus cooling the atmosphere. These interactions have the potential to cause feedback loops which could oppose or exacerbate climate change. As well as climate model analysis, I am also doing research on the fundamental chemistry behind the formation of the smallest particles, focusing on the interactions of peroxy radicals from various BVOCS, and incorporating this into the global climate models UKCA and UKESM. I have been involved in the 6th Coupled Model Intercomparison Project (CMIP6) looking at biogeochemcial feedbacks which will contribute to the evidence base used by the IPCC.



Improving the understanding of the influence of emissions of biogenic volatile organic compounds on climate.
J Weber
Improvements to the representation of BVOC chemistry-climate interactions in UKCA (v11.5) with the CRI-Strat 2 mechanism: incorporation and evaluation
J Weber, S Archer-Nicholls, NL Abraham, YM Shin, TJ Bannan, CJ Percival, A Bacak, P Artaxo, M Jenkin, MAH Khan, DE Shallcross, RH Schwantes, J Williams, AT Archibald
– Geoscientific Model Development
The Common Representative Intermediates Mechanism Version 2 in the United Kingdom Chemistry and Aerosols Model
S Archer-Nicholls, NL Abraham, YM Shin, J Weber, MR Russo, D Lowe, SR Utembe, FM O'Connor, B Kerridge, B Latter, R Siddans, M Jenkin, O Wild, AT Archibald
– Journal of Advances in Modeling Earth Systems
ARTN e2020MS002420
Co-emission of volcanic sulfur and halogens amplifies volcanic effective radiative forcing
J Staunton-Sykes, TJ Aubry, YM Shin, J Weber, LR Marshall, N Luke Abraham, A Archibald, A Schmidt
– Atmospheric Chemistry and Physics
Climate-driven chemistry and aerosol feedbacks in CMIP6 Earth system models
G Thornhill, W Collins, D Olivié, R B. Skeie, A Archibald, S Bauer, R Checa-Garcia, S Fiedler, G Folberth, A Gjermundsen, L Horowitz, JF Lamarque, M Michou, J Mulcahy, P Nabat, V Naik, F M. O'Connor, F Paulot, M Schulz, C E. Scott, R Séférian, C Smith, T Takemura, S Tilmes, K Tsigaridis, J Weber
– Atmospheric Chemistry and Physics
Minimal Climate Impacts From Short-Lived Climate Forcers Following Emission Reductions Related to the COVID-19 Pandemic.
J Weber, Y Shin, J Staunton Sykes, S Archer Nicholls, N Abraham, A Archibald
– Geophys Res Lett
CRI-HOM: A novel chemical mechanism for simulating highly oxygenated organic molecules (HOMs) in global chemistry–aerosol–climate models
J Weber, S Archer-Nicholls, P Griffiths, T Berndt, M Jenkin, H Gordon, C Knote, AT Archibald
– Atmospheric Chemistry and Physics
Afforestation’s potential to help Cambridgeshire reach net-zero by 2050
J Weber
– Cambridge Journal of Science and Policy
Co-emission of volcanic sulfur and halogens amplifies volcanic effective radiative forcing
J Staunton-Sykes, TJ Aubry, YM Shin, J Weber, LR Marshall, NL Abraham, A Schmidt, A Archibald
Supplementary material to "Seasonal, interannual and decal variability of Tropospheric Ozone in the North Atlantic: Comparison of UM-UKCA and remote sensing observations for 2005–2018"
MR Russo, BJ Kerridge, NL Abraham, J Keeble, BG Latter, R Siddans, J Weber, PT Griffiths, JA Pyle, AT Archibald
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