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

Equatorward dispersion of a high-latitude volcanic plume and its relation to the Asian summer monsoon: a case study of the Sarychev eruption in 2009. By X. Wu et al in Atmospheric Chemistry and Physics.

Maintaining Momentum in Climate Model Development. Comment by C.C. Ummenhofer et al. in Earth & Space Science News.

How predictable are the Arctic and North Atlantic Oscillations? Exploring the Variability and Predictability of the Northern Hemisphere. By D. Domeisen et al in the Journal of Climate.

Impacts of Horizontal Propagation of Orographic Gravity Waves on the Wave Drag in the Stratosphere and Lower Mesosphere. By X. Xu et al in the Journal of Geophysical Research: Atmospheres.

Origin of the 2016 QBO Disruption and Its Relationship to Extreme El Niño Events. By C.A. Barton and J.P. McCormack in the Geophysical Research Letters.

Relationships Between Gravity Waves Observed at Earth’s Surface and in the Stratosphere Over the Central and Eastern United States. By C.D. de Groot-Hedlin et al in the Journal of Geophysical Research: Atmospheres.

Onset of Stratospheric Ozone Recovery in the Antarctic Ozone Hole in Assimilated Daily Total Ozone Columns. By A.T.J. Laat et al in the Journal of Geophysical Research: Atmospheres.