Seminar by Ruth Geen from the University of Birmingham on dynamical regime analyses of climate models and the aquaplanet monsoon.
Ruth Geen is coming to Laver 320 on Wednesday 11 November for a GAFD seminar, hosted by the Mathematics and Statistics department. She's visiting from the University of Birmingham, and her talk is titled Is it a Monsoon? Dynamical Regime Analyses of Climate Models.
It's a climate science talk that starts with a bit of a thought experiment: 'aquaplanet' simulations. These are Earth-like models run for a planet entirely covered in water, and Geen uses them to ask whether the monsoon that emerges on an aquaplanet is actually comparable to the global and regional monsoon systems we see on Earth. To get there, she's using NEMI, a new regime analysis tool, and applying it across a model hierarchy to look at the upper-level momentum budget of the regional Hadley cells.
What she's found is where the two versions diverge. The results show a summertime 'angular momentum conserving' regime across much of the global tropics, but they also highlight a strong role for stationary versus transient waves in the South Asian monsoon — a finding that runs counter to what the aquaplanet simulations suggest. It's that gap between the simplified model and the real-world system that sits at the heart of the talk.
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If you're into climate modelling or the physics of the atmosphere, it's one to keep on the radar. The seminar is on Wednesday 11 November at 12:30 in Laver 320, organised by the Mathematics and Statistics department.
