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I am a researcher in the Space Weather and Atmosphere group at the British Antarctic Survey investigating the modelling of the Earth's radiation belts. I use a numerical modelling approach for theoretical equations alongside the use of satellite datasets. See more on my website: https://www.jackatkinson.net
We consider the life cycle of an axisymmetric laminar thermal starting from the initial condition of a Gaussian buoyant blob. We find that, as time progresses, the thermal transitions through a number of distinct stages, undergoing several morphological changes before ending up as a vortex ring. Whilst each stage is interesting in its own right, on...
We consider axisymmetric rotating convection in a cylindrical domain, focusing on the eye that can form at the center of a cyclonic vortex. Upon increasing the thermal forcing we observe that the system undergoes a Hopf bifurcation from a state with a steady eye to one in which the eye oscillates. For an aspect ratio, Ekman number, and Prandtl numb...
To enhance the forecasting of volcanic ash hazard through multi-scale modelling, assimilation of satellite observations and exploring the potential of multi-frequency ground-based mm-wave radar.