As a weather pattern, the Asian monsoon impacts the lives of more than a billion people. With rapid population and economic growth across the monsoon region, it becomes a pressing concern that the convection coupled to surface emissions is playing a significant role in the region’s air quality. The uplift of pollutants also enhances aerosol–cloud interactions that may change the behaviour of the monsoon. The monsoon system is therefore relevant to scales and processes bridging regional air quality, climate change, and global
chemistry-climate interaction and the chemical transport effect of the monsoon system is seen from satellites as an effective transport path for pollutants to enter the stratosphere.
The session will focus on the dynamical, micro-physical, and chemical processes dominating transport, chemical transformations and particle and cloud formation throughout the Upper-Troposphere Lower-Stratosphere above the Asian Monsoon system as well their internal and ozone and climate couplings. Here we especially encourage experimental and modelling (process to global) studies from recent programmes (such as StratoClim, BATAL, OMO). Contributions addressing tropospheric processes within the Atmospheric Composition and Asian Monsoon (ACAM) Programme objectives, such as the coupling to local emission on air quality and aerosols, clouds, interactions with the Asian monsoon are also welcome.