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

 

Deep-convective influence on the upper troposphere–lower stratosphere composition in the Asian monsoon anticyclone region: 2017 StratoClim campaign results. By S. Bucci et al. in Atmospheric Chemistry and Physics.

Impact of sudden stratospheric warmings on United Kingdom mortality. By A.J. Charlton-Perez, W.T.K. Huang, and S.H. Lee in the Atmospheric Science Letters.

The Global Space-based Stratospheric Aerosol Climatology (version 2.0): 1979–2018. By M. Kovukajan et al. in Earth System Science Data.

Comparison of Key Characteristics of Remarkable SSW Events in the Southern and Northern Hemisphere. By M. Kozubek, J. Lastovicka, and P. Krizan in Atmosphere.

The Remarkably Strong Arctic Stratospheric Polar Vortex of Winter 2020: Links to Record‐Breaking Arctic Oscillation and Ozone Loss. By Z.D. Lawrence et al. in the Journal of Geophysical Research: Atmospheres.

Variability in QBO Temperature Anomalies on Annual and Decadal Timescales. By Z. Martin et al. in the Journal of the Climate.

The vertical profile of recent tropical temperature trends: Persistent model biases in the context of internal variability. By D.M. Mitchell et al. in the Environmental Research Letters.

Polar stratospheric clouds initiated by mountain waves in a global chemistry–climate model: a missing piece in fully modelling polar stratospheric ozone depletion. By A. Orr et al. in Atmospheric Chemistry and Physics.

Stratospheric Ozone in the Last Glacial Maximum. By M. Wang et al. in the Journal of Geophysical Research: Atmospheres.

Stratospheric contribution to the summertime high surface ozone events over the western united states. By X. Wang et al. in the Environmental Research Letters.

 

Discussion papers – open for comments:

Mixing at the extratropical tropopause as characterized by collocated airborne H2O and O3 lidar observations. By A. Schäfler, A. Fix, and M. Wirth in Atmospheric Chemistry and Physics.