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

Forced decadal changes in the East Asian summer monsoon: the roles of greenhouse gases and anthropogenic aerosols. By F. Tian et al. in Climate Dynamics.

Characterizing Stratospheric Polar Vortex Variability With Computer Vision Techniques. By Z.D. Lawrence, and G.L. Manney in the Journal of Geophysical Research: Atmospheres.

Effects of Greenhouse Gas Increase and Stratospheric Ozone Depletion on Stratospheric Mean Age of Air in 1960-2010. By F. Li et al. in the Journal of Geophysical Research: Atmospheres.