In a continuation of my collaboration with Chaim Garfinkel, Ian White, and Martin Jucker on the development of MiMA, and with long time colleague (and former office mate!) Seok-Woo Son, we’ve just submitted a paper to the Journal of Climate on the response of the troposphere to stratospheric ozone loss.
We use our idealized model of the atmosphere to understand the mechanism by which the stratospheric ozone loss (or recovery) impacts the troposphere. It is well known that the formation of the ozone hole caused a poleward shift of the tropospheric jet stream. We show that planetary scale stationary waves modulate the timing and amplitude of the jet stream shift, ultimately weakening its response to stratospheric ozone perturbations.