SPARC Science update: 11 August – 17 August

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


State of the Climate in 2019. By J. Blunden and D.S. Arndt in the Bulletin of the American Meteorological Society

A supplement to this article is available online (PDF; 10.1175/2020BAMSStateoftheClimate.2).


Non‐additivity of the mid‐latitude circulation response to regional Arctic temperature anomalies: the role of the stratosphere. By B. De, Y. Wu, and L.M. Polvani in the Geophysical Research Letters.

Impact of Interannual Ozone Variations on the Downward Coupling of the 2002 Southern Hemisphere Stratospheric Warming. By H.H. Hendon, E-P. Lim, and S. Abhik in the Journal of Geophysical Research: Atmospheres.

Evaluation of tropospheric ozone reanalyses with independent ozonesonde observations in East Asia. By S. Park et al. in the Geoscience Letters.

Lagrangian gravity wave spectra in the lower stratosphere of current (re)analyses. By A. Podglajen et al. in Atmospheric Chemistry and Physics.


Discussion papers – open for comments:

Local and Remote Response of Ozone to Arctic Stratospheric Circulation Extremes. By H-J Hong and T. Reichler in Atmospheric Chemistry and Physics.

Role of equatorial planetary and gravity waves in the 2015–16 quasi-biennial oscillation disruption. By M-J Kang, Y-Y Chung, and R.R. Garcia in Atmospheric Chemistry and Physics.