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

Short-term stratospheric ozone fluctuations observed by GROMOS microwave radiometer at Bern. By L. Moreira, K. Hocke, and N. Kämpfer in Earth, Planets and Space.

Intercomparison of AIRS and HIRDLS stratospheric gravity wave observations. By C.I. Meyer et al. in Atmospheric measurement Techiques.

Discussion papers – open for comment

The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): Motivation and experimental design. By C. Timmereck et al. in Geoscientific Model Development.

Interannual variability of the gravity wave drag – vertical coupling and possible climate links. By P. Sacha, J. Miksovsky, and P. Pisoft in Earth System Dynamics.