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

Disentangling fast and slow responses of the East Asian summer monsoon to reflecting and absorbing aerosol forcings. By Z. Wang et al. in Atmospheric Chemistry and Physics.

Comparison of large-scale dynamical variability in the extratropical stratosphere among the JRA-55 family data sets: impacts of assimilation of observational data in JRA-55 reanalysis data. By M. Taguchi in Atmospheric Chemistry and Physics.

Shift of subtropical transport barriers explains observed hemispheric asymmetry of decadal trends of age of air. By G.P. Stiller in Atmospheric Chemistry and Physics.

An assessment of drift correction alternatives for CMIP5 decadal predictions. By D. Choudhury et al. in the Journal of Geophysical Research: Atmospheres.

Discussion papers – open for comment

Representation of solar tides in the stratosphere and lower mesosphere in state-of-the-art reanalyses and in satellite observations. By T. Sakazaki et al. in Atmospheric Chemistry and Physics Discussions.

Revising global ozone dry deposition estimates based on a new mechanistic parameterisation for air-sea exchange and the multi-year MACC composition reanalysis. By A.K. Luhar et al. in Atmospheric Chemistry and Physics Discussions.

Tropical convection regimes in climate models: evaluation with satellite observations. By A.K. Steiner et al. in Atmospheric Chemistry and Physics Discussions.