GMAO Science Snapshot: The Anomalous 2019 Polar Stratospheric Chemistry in GMAO’s Assimilation Experiments

At the end of August 2019, a rare sudden stratospheric warming commenced in the Southern Hemisphere as a result of anomalously high wave activity. Using the new Constituent Data Assimilation System developed at the Global Modeling and Assimilation Office (GMAO) and running at the NASA Center for Climate Simulation (NCCS), scientists conducted an analysis of the dynamical and chemical evolution of the 2019 polar vortex and ozone depletion.

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Visualization of ozone during sudden stratospheric warming over Antarctica