A selection of new science articles from the past week of interest to the SPARC community(a SPARC Office choice).
The decrease in mid-stratospheric tropical ozone since 1991. By G.E. Nedoluha et al. in Atmospheric Chemistry and Physics Discussions.
Signatures of the two 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 Discussions.
Increase in upper tropospheric and lower stratospheric aerosol levels and its potential connection with Asian Pollution. By J.-P. Vernier et al. in the Journal of Geophysical Research: Atmospheres.
Climatology and variability of trace gases in extratropical double-tropopause regions from MLS, HIRDLS and ACE-FTS measurements. By M.J. Schwartz et al. in the Journal of Geophysical Research: Atmospheres.
Stratospheric dynamics and midlatitude jets under geoengineering with space mirrors, and sulfate and titania aerosols. By A.J. Ferraro et al. in the Journal of Geophysical Research: Atmospheres.
The diurnal variation in stratospheric ozone from the MACC reanalysis, the ERA-Interim reanalysis, WACCM and Earth observation data: characteristics and intercomparison. By A. Schanz et al. in Atmospheric Chemistry and Physics Discussions.
Lagrangian analysis of microphysical and chemical processes in the Antarctic stratosphere: a case study. By L. Di Liberto et al. in Atmospheric Chemistry and Physics Discussions.
The impact of polar stratospheric ozone loss on Southern Hemisphere stratospheric circulation and climate. By J. Keeble et al. in Atmospheric Chemistry and Physics.
Data assimilation in atmospheric chemistry models: current status and future prospects for coupled chemistry meteorology models. By M. Bocquet et al. in Atmospheric Chemistry and Physics Discussions.
Tracing the second stage of ozone recovery in the Antarctic ozone-hole with a "big data" approach to multivariate regressions. By A.T.J. de Laat et al. in Atmospheric Chemistry and Physics.
Stratospheric volcanic ash emissions from the 13 February 2014 Kelut eruption. By N.I. Kristiansen et al. in Geophysical Research Letters.
Particulate matter, air quality and climate: lessons learned and future needs. By S. Fuzzi et al. in Atmospheric Chemistry and Physics Discussions.