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

 

Stratospheric ozone trends for 1985–2018: sensitivity to recent large variability. By W.T. Ball et al. in Atmospheric Chemistry and Physics.

Multiscale extratropical barotropic variability on the subseasonal‐to‐seasonal timescale. By L. Boljka and T.G. Shepherd in the Quarterly Journal of the Royal Meteorological Society.

Diagnosing topographic forcing in an atmospheric dataset: the case of the North American Cordillera. By K. Hartung et al. in the Quarterly Journal of the Royal Meteorological Society.

Evidence of small-scale quasi-isentropic mixing in ridges of extratropical baroclinic waves. By D. Kunkel et al. in Atmospheric Chemistry and Physics.

The Buffer Zone of the Quasi-Biennial Oscillation. By A. Match and S. Fueglistaler in the Journal of the Atmospheric Sciences.

Unified quantitative observation of coexisting volcanic sulfur dioxide and sulfate aerosols using ground-based Fourier transform infrared spectroscopy. By P. Sellitto et al. in Atmospheric Measurement Techniques.

 

Discussion Papers – open for comment:

Diurnal cycle of clouds extending above the tropical tropopause observed by spaceborne lidar. By T. Dauhut, V. Noël, and I.-A. Dion in Atmospheric Chemistry and Physics.

Ice injected into the tropopause by deep convection – Part 2: Over the Maritime Continent. By I.-A. Dion et al. in Atmospheric Chemistry and Physics.

Simulation of convective moistening of extratropical lower stratosphere using a numerical weather prediction model. By Z. Qu et al. in Atmospheric Chemistry and Physics.