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

Stratospheric ozone in boreal fire plumes – the 2013 smoke season over central Europe. By T. Trickl et al. in Atmospheric Chemistry and Physics.

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

Is there a solar signal in lower stratospheric water vapour? By T. Schieferdecker et al. in Atmospheric Chemistry and Physics.

Dust aerosol feedback on the Indian summer monsoon: Sensitivity to absorption property. By S. Das et al. in the Journal of Geophysical Research: Atmospheres.

Bi-modal Distribution of Free Tropospheric Ozone over the Tropical Western Pacific Revealed by Airborne Observations. By L.L. Pan et al. in Geophysical Research Letters.

Consistent response of Indian summer monsoon to Middle East dust in observations and simulations. By Q. Jin et al. in Atmospheric Chemistry and Physics.

Capturing and sharing our collective expertise on climate data: the CHARMe project. By D. Clifford et al. in the Bulletin of the American Meteorology Society.

Stratospheric variability of wave activity and parameters in equatorial coastal and tropical sites during the West African monsoon. By P. Kafando et al. in Climate Dynamics.

Discussion papers – open for comment

Equatorial middle atmospheric chemical composition changes during sudden stratospheric warming events. By O. Nath and S. Sridharan in Atmospheric Chemistry and Physics Discussions.