Science Update: 16-22 May

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

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.

Stratospheric influence on tropospheric jet streams, storm tracks, and surface weather. By J. Kidston et al. in Nature Geoscience.

Polar processing in a split vortex: Arctic ozone loss in early winter 2012/2013. By G.L. Manney et al. in Atmospheric Chemistry and Physics.

Big grains go far: understanding the discrepancy between tephrochronology and satellite infrared measurements of volcanic ash. By J.A. Stevenson et al. in Atmospheric Measurement Techniques.

Sensitivity of Tropical Tropospheric Composition to Lightning NOx Production as Determined by the NASA GEOS-Replay Model. By C.E. Liaskos et al. in the Journal of Geophysical Research: Atmospheres.

Aircraft measurements of BrO, IO, glyoxal, NO2, H2O, O2–O2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements. By R. Volkamer et al. in Atmospheric Measurement Techniques.

Round-robin evaluation of nadir ozone profile retrievals: methodology and application to MetOp-A GOME-2. By A. Keppens et al. in Atmospheric Measurement Techniques.

The Melting Arctic and Mid-latitude Weather Patterns: Are They Connected? By J. Overland et al. in the Journal of Climate.

TTL cooling and drying during the January 2013 Stratospheric Sudden Warming. By S. Evan et al. in the Quarterly Journal of the Royal Meteorological Society.

Evaluation of a regional air quality model using satellite column NO2: treatment of observation errors and model boundary conditions and emissions. By R.J. Pope et al. in Atmospheric Chemistry and Physics.

A hiatus in the stratosphere? By A.J. Ferraro et al. in Nature Climate Change.

Quasi-biennial oscillation of the tropical stratospheric aerosol layer. By R. Hommel et al. in Atmospheric Chemistry and Physics.

Discussion Papers – Open for comment

The impact of volcanic aerosols on stratospheric ozone and the Northern Hemisphere polar vortex: separating radiative from chemical effects under different climate conditions. By S. Muthers et al. in Atmospheric Chemistry and Physics Discussions.