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

Importance of Gravity Wave Forcing for Springtime Southern Polar Vortex Breakdown as Revealed by ERA5. By A. Gupta et al. in the Geophysical Research Letters.

Effects of prescribed CMIP6 ozone on simulating the Southern Hemisphere atmospheric circulation response to ozone depletion. By I. Ivanciu et al. in Atmospheric Chemistry and Physics.

Using a network of temperature lidars to identify temperature biases in the upper stratosphere in ECMWF reanalyses. By G. Marlton et al. in Atmospheric Chemistry and Physics.

Earth Observation for Sustainable Infrastructure: A Review. By Y. Song and P. Wu in remote sensing.

Discussion papers – open for comment:

The impact of SF6 sinks on age of air climatologies and trends. By S. Loeffel et al. in Atmospheric Chemistry and Physics.