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

Evolving obs4MIPs to Support the Sixth Coupled Model Intercomparison Project (CMIP6). By R. Ferraro et al. in the Bulletin of the American Meteorological Society.

Mountain waves and wakes generated by South Georgia: implications for drag parametrization. By S.B. Vosper in the Quarterly Journal of the Royal Meteorological Society.

Reconciling reported and unreported HFC emissions with atmospheric observations. By M.F. Lunt et al. in Proceedings of the National Academy of Sciences of the United States of America.

Possible impacts of a future Grand Solar Minimum on climate: Stratospheric and global circulation changes. By A.C. Maycock et al. in the Journal of Geophysical Research: Atmospheres.

Tropopause Folds in ERA-Interim: Global Climatology and Relation to Extreme Weather Events. By B. Škerlak et al. in the Journal of Geophysical Research: Atmospheres.

Discussion Papers – open for comment

A solar signal in lower stratospheric water vapour? By T. Schieferdecker et al. in Atmospheric Chemistry and Physics Discussions.

Trajectory mapping of middle atmospheric water vapor by a mini network of NDACC instruments. By M. Lainer et al. in Atmospheric Chemistry and Physics Discussions.