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

Decadal wintertime temperature changes in East Asia during 1958‐2001 and the contributions of internal variability and external forcing. By M. Luo et al. in the Journal of Geophysical Research: Atmospheres.

Dynamical and thermodynamical drivers of variability in European summer heat extremes. By L. Suarez-Gutierrez, et al. in Climate Dynamics.

Evaluation of the CAMS global atmospheric trace gas reanalysis 2003–2016 using aircraft campaign observations. By Y. Wang et al. in Atmospheric Chemistry and Physics.

Discussion papers – open for comment:

Global-scale distribution of ozone in the remote troposphere from ATom and HIPPO airborne field missions. By I. Bourgeois et al. in Atmospheric Chemistry and Physics.

Intra-annual variations of spectrally resolved gravity wave activity in the UMLT region. By R. Sedlak et al. in Atmospheric Measurement Techniques.