A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).

The South Georgia Wave Experiment (SG-WEX) – a means for improved analysis of gravity waves and low-level wind impacts generated from mountainous islands. By D.R. Jackson et al. in the Bulletin of the American Meteorological Society.

Characterizing stratospheric polar vortex variability with computer vision techniques. By Z.D. Lawrence and G.L. Manney in the Journal of Geophysical Research: Atmospheres.

Multi-year composite view of ozone enhancements and stratosphere-to-troposphere transport in dry intrusions of northern hemisphere extratropical cyclones. By L. Jaeglé et al. in the Journal of Geophysical Research: Atmospheres.

Sensitivities of modelled water vapour in the lower stratosphere: temperature uncertainty, effects of horizontal transport and small-scale mixing. By L. Poshyvailo et al. in Atmospheric Chemstry and Physics.

Large-Scale Tropospheric Transport in the Chemistry Climate Model Initiative (CCMI) Simulations. By C. Orbe et al. in Atmospheric Chemistry and Physics.