StratoClim is a collaborative research project funded by the European Commission 7th Framework programme. The main objective of the project is to improve the understanding of key processes in the upper troposphere and stratosphere (UTS) for more reliable projections of climate change and stratospheric ozone. StratoClim focuses on the understanding of the microphysical, chemical, and dynamical processes that determine the composition of the UTS, such as the formation, loss, and redistribution of aerosol, ozone, and water vapour; how these processes are affected by climate change; and how they feed back on global climate.

The issue will include papers coming from all sectors included in the project: in situ and sonde measurement deployment, satellite data products and analysis, mesoscale and transport modelling, and CCM experiments and analysis. We expect a special emphasis on the results from the high-altitude research aircraft campaign in the Asian monsoon area carried out in 2017 deploying an innovative and comprehensive payload. Due to the expected contribution of instrumental manuscripts, the issue will also include AMT submissions.