Antarctic Clouds and Aerosols (ACA) Action Group
In 2010 SCAR sponsored a workshop on Antarctic clouds hosted by Byrd Polar Centre which proposed an International programme to coordinate the investigation of Antarctic clouds. It was suggested that this programme would have a series of special observing periods in Antarctic when both intensive ground based measurements would be made at the same time as in-situ measurements would be made with instrumented aircraft. It was hoped that such a programme would also include both regional and global modelling to help understand the observations and act as a test bed for new parameterisations of clouds.
As a first step to formation of an international programme the SCAR Action Group on Antarctic Clouds and Aerosols (ACA) was set up. This group’s long term goal is to organise an international large scale campaign to investigate clouds and aerosols in Antarctica.