Science Update: 1-8 May

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

Temperature Variation over East Asia during the lifecycle of weak stratospheric polar vortex. By S.-H. Woo et al. in the Journal of Climate.

Modulation of Antarctic vortex composition by the Quasi-Biennial Oscillation. By S.E. Strahan et al. in Geophysical Research Letters.

Observations of planetary waves in the mesosphere-lower thermosphere during stratospheric warming events. By N.H. Stray et al. in Atmospheric Chemistry and Physics.

Air-Mass Origin in the Tropical Lower Stratosphere: The Influence of Asian Boundary Layer Air. By C. Orbe et al. in Geophysical Research Letters.

Using self-organising maps to explore ozone profile validation results – SCIAMACHY limb compared to ground-based lidar observations. By J.A.E. van Gijsel et al. in Atmospheric Measurement Techniques.

Signatures of the 2-day wave and sudden stratospheric warmings in Arctic water vapour observed by ground-based microwave radiometry. By B. Tschanz and N. Kämpfer in Atmospheric Chemistry and Physics.

An adaptive covariance relaxation method for ensemble data assimilation. By Y. Ying and F. Zhang in the Quarterly Journal of the Royal Meteorological Society.

Influence of isoprene chemical mechanism on modelled changes in tropospheric ozone due to climate and land use over the 21st century. By O.J. Squire et al. in Atmospheric Chemistry and Physics.

Discussion Papers – open for comment

Effect of tropical cyclones on the tropical tropopause parameters observed using COSMIC GPS RO data. By S. Ravindra Babu et al. in Atmospheric Chemistry and Physics Discussions.

Global temperature response to the major volcanic eruptions in multiple reanalysis datasets. By M. Fujiwara et al. in Atmospheric Chemistry and Physics Discussions.