SPARC Science Update: 23-29 January

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

Modulation of the boreal wintertime Madden-Julian Oscillation by the stratospheric Quasi-Biennial Oscillation. By C. Yoo and S.-W. Son in Geophysical Research Letters.

Quantification of relative contribution of Antarctic ozone depletion to increased austral extratropical precipitation during 1979-2013. By K. Bai et al. in the Journal of Geophysical Research: Atmospheres.

A re-evaluated Canadian ozonesonde record: measurements of the vertical distribution of ozone over Canada from 1966 to 2013. By D.W. Tarasick et al. in Atmospheric Measurement Techniques.

High solar cycle spectral variations inconsistent with stratospheric ozone observations. By W.T. Ball et al. in Nature Geoscience.

Comparison of GOME-2/Metop-A ozone profiles with GOMOS, OSIRIS and MLS measurements. By A. Kauppi et al. in Atmospheric Measurement Techniques.

Observed and modelled tropospheric cold anomalies associated with sudden stratospheric warmings. By I. Lehtonen and A.Y. Karpechko in the Journal of Geophysical Research: Atmospheres.

Stratospheric polar vortex splits and displacements in the high-top CMIP5 climate models. By W.J. Seviour et al. in the Journal of Geophysical Research: Atmospheres.

Brewer-Dobson circulation diagnosed from JRA-55. By C. Kobayashi and T. Iwasaki in the Journal of Geophysical Research: Atmospheres.

Discussion papers – open for comment

Upper tropospheric CO and O3 budget during the Asian Summer Monsoon. By B. Barret et al. in Atmospheric Chemistry and Physics Discussions.