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

Stratospheric sulfur and its implications for radiative forcing simulated by the chemistry climate model EMAC. By C. Brühl et al. in the Journal of Geophysical Research: Atmospheres.

Solar Signals in CMIP-5 Simulations: The Stratospheric Pathway. By D.M. Mitchell et al. in the Quarterly Journal of the Royal Meteorological Society.

Mass Footprints of the North Pacific Atmospheric Blocking Highs. By T.-W. Park et al. in the Journal of Climate.

Seasonal changes of CO₂, CH₄, N₂O and SF₆ in the upper troposphere/lower stratosphere over the Eurasian continent observed by commercial airliner. By Y. Sawa et al. in Geophysical Research Letters.

Hemispheric asymmetries and seasonality of mean age of air in the lower stratosphere: Deep versus shallow branch of the Brewer-Dobson circulation. By P. Konopka et al. in the Journal of Geophysical Research: Atmospheres.

Direct impacts of waves on tropical cold point tropopause temperature. By J.-E. Kim and M.J. Alexander in Geophysical Research Letters.

Detecting physically unrealistic outliers in ACE-FTS atmospheric measurements. By P.E. Sheese, C.D. Boone, and K.A. Walker in Atmospheric Measurement Techniques.