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

Indicators of Antarctic ozone depletion: 1979 to 2019. By G.E. Bodeker and S. Kremser in Atmospheric Chemistry and Physics.

Stratospheric impacts of continuing CFC‐11 emissions simulated in a chemistry‐climate model. By E.L. Fleming et al. in the Journal of Geophysical Research: Atmospheres.

Gravity Wave Weakening During the 2019 Antarctic Stratospheric Sudden Warming. By M. Kogure, J. Yue, and H. Liu in the Geophysical Research Letters.

Discussion papers – open for comment:

Using Vertical Phase Differences to Better Resolve 3D Gravity Wave Structure. By C.J. Wright et al. in Atmospheric Measurement Techniques.