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A climate of change within modelling


Advances in climate modelling are continuing apace. Three experts describe how scientifi c computing is driving their work


O


Atmospheric Sciences at the University of Illinois, USA


40 SCIENTIFIC COMPUTING WORLD


Donald J Wuebbles, The Harry E Preble professor of


ne proposal I have recently been working on relates to chemical climate interactions within the ozone layer. We are trying to better


understand the past trends in ozone and what the future of stratospheric ozone holds for us, as well as what it means for climate. We are looking at the effects of aviation emissions and how they affect climate now and into the future. A lot of our studies focus on chemical climate interactions. I have also been working on the IPCC chapter I’m in charge of co-leading, because we


need to complete the fi rst draft in order to hand it in for the fi rst offi cial review. That doesn’t directly relate to the modelling I do, but it relates to our work looking at climate impact. The chemical climate interaction studies


use 3D complex models of the Earth system that fully represent the processes affecting atmospheric chemistry and climate. We are also using the 3D Earth system model, which is a much more complete representation of oceans, land and biosphere, as well as atmosphere, to study the effects of human activity on climate. It is also used to look at past natural events that may have had an impact on humanity and the biosphere, so that we can not only try to understand those types of events better, but be aware of the scale of the impact such events would have


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