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

 

Ground-based ozone profiles over central Europe: incorporating anomalous observations into the analysis of stratospheric ozone trends. By L. Bernet et al. in Atmospheric Chemistry and Physics.

Modelling spatially correlated observation errors in variational data assimilation using a diffusion operator on an unstructured mesh. By O. Guillet et al. in the Quarterly Journal of the Royal Meteorological Society.

Recent Weakening in the Stratospheric Planetary Wave Intensity in Early Winter. By D. Hu, Y. Guo, and Z. Guan in the Geophysical Research Letters.

Evaluating the Brewer–Dobson circulation and its responses to ENSO, QBO, and the solar cycle in different reanalyses. By J. Rao et al. in Earth and Planetary Physics.

The climatology of the Brewer–Dobson circulation and the contribution of gravity waves. By K. Sato and S. Hirano in Atmospheric Chemistry and Physics.

Nonlinear latitudinal transfer of wave activity in the winter stratosphere. By R.K. Scott in the Quarterly Journal of the Royal Meteorological Society.

Modification of potential vorticity near the tropopause by non-conservative processes in the ECMWF model. By E. Spreizer et al. in the Journal of the Atmospheric Sciences.

Double cores of the Ozone Low in the vertical direction over the Asian continent in satellite data sets. By Z. Tang et al. in Earth and Planetary Physics.

Latitudinal and topographical variabilities of free atmospheric turbulence from high‐resolution radiosonde datasets. By J. Zhang et al. in the Journal of Geophysical Research: Atmospheres.

A multi‐location joint field observation of the stratosphere and troposphere over the Tibetan Plateau. By JQ Zhang et al. in Earth and Planetary Physics.

Decadal variations in the winter Beaufort High and the stratospheric polar vortex. By M. Zhang, W. Perrie, and Z. Long in the Geophysical Research Letters.