SPARC Science Update: 24-30 September

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

Heterogeneous kinetics of H2O, HNO3 and HCl on HNO3 hydrates (α-NAT, β-NAT, NAD) in the range 175–200 K. By R. Iannarelli and M.J. Rossi in Atmospheric Chemistry and Physics.

Contrasting Upper and Lower Atmospheric Metrics of Tropical Expansion in the Southern Hemisphere. By A. Solomon et al. in the Journal of Geophysical Research: Atmospheres.

The Stratospheric Water and Ozone Satellite Homogenized (SWOOSH) database: a long-term database for climate studies. By S.M. Davis et al. Earth System Science Data.

Future Arctic ozone recovery: the importance of chemistry and dynamics. By E.M. Bednarz et al. in Atmospheric Chemistry and Physics.

Influence of topography on temperature variations in the tropical tropopause layer. By H. Kubokawa et al in the Journal of Geophysical Research: Atmospheres.

Evidence of horizontal and vertical transport of water in the Southern Hemisphere tropical tropopause layer (TTL) from high-resolution balloon observations. By S.M. Khaykin et al. in Atmospheric Chemistry and Physics.

A mechanism to explain the variations of tropopause and tropopause inversion layer in the Arctic region during a sudden stratospheric warming in 2009. By R. Wang et al. in the Journal of Geophysical Research: Atmospheres.

Discussion papers – open for comment

Variability and evolution of mid-latitude stratospheric aerosol budget from 22 years of ground-based lidar and satellite observations. By S.M. Khaykin et al. in Atmospheric Chemistry and Physics Discussions.

AirCore-HR: A high resolution column sampling to enhance the vertical description of CH4 and CO2. By O. Membrive et al. in Atmospheric Measurement Techniques Discussions.

A Sudden Stratospheric Warming Compendium. By A.H. Butler et al. in Earth System Science Data Discussions.