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

 

No robust evidence of future changes in major stratospheric sudden warmings: a multi-model assessment from CCMI. By B. Ayarzagüena et al. in Atmospheric Chemistry and Physics.

Rossby wave breaking and isentropic stratosphere‐troposphere exchange in 1981–2015 in the Northern Hemisphere. By P. Jing and S. Banerjee in the Journal of Geophysical Research: Atmospheres.

Determination of Best Tropopause Definition for Convective Transport Studies. By E.M. Maddox and G.L. Mullendore in the Journal of the Atmospheric Sciences.

Ensemble sensitivity analysis of Greenland blocking in medium‐range forecasts. By T. Parker, T. Woollings, and Antje Weisheimer in the Quarterly Journal of the Royal Meteorological Society.

Impact of Parametrized Nonorographic Gravity Wave Drag on Stratosphere‐Troposphere Coupling in the Northern and Southern Hemispheres. By I. Polichtchouk, T.G. Shepherd, and N.J. Byrne in the Geophysical Research Letters.

 

Discussion papers open for comment:

Structural changes in the shallow and transition branch of the Brewer–Dobson circulation induced by El Niño. By M. Diallo et al. in Atmospheric Chemistry and Physics.