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

Global Responses of Gravity Waves to Planetary Waves during Stratospheric Sudden Warming Observed by SABER. By C.Y. Cullens in the Journal of Geophysical Research: Atmospheres.

Attributing the forced components of observed stratospheric temperature variability to external drivers. By D. Mitchell in the Quarterly Journal of the Royal Meteorological Society.

Clouds and the atmospheric circulation response to warming. By P. Ceppi and D.L. Hartman in the Journal of Climate.

Feeling the pulse of the stratosphere: An emerging opportunity for predicting continental-scale cold air outbreaks one month in advance. By M. Cai et al. in the Bulletin of the American Meteorological Society.

OMI total column ozone: extending the long-term data record. By R.D. McPeters et al. in Atmospheric Chemistry and Physics.

Discussion papers – open for comment

Summertime nitrate aerosol in the upper troposphere and lower stratosphere over the Tibetan Plateau and the South Asian summer monsoon region. By Y. Gu and H. Liao in Atmospheric Chemistry and Physics Discussions.

Ozone changes under solar geoengineering: implications for UV exposure and air quality. By P.J. Nowack et al. in Atmospheric Chemistry and Physics Discussions.

On the climatological probability of the vertical propagation of stationary planetary waves. By K. Karami et al. in Atmospheric Chemistry and Physics Discussions.

Characteristics of gravity waves generated in a baroclinic instability simulation. By Y.-H. Kim et al. in Atmospheric Chemistry and Physics Discussions.