Long-term measurements of carbon dioxide, water vapor, and energy exchange through the eddy covariance technique from different ecosystems integrated into consistent, quality assured, and fully documented data sets.
The overall scientific goal of ACD is to identify and quantify the natural and anthropogenic processes that regulate the chemical composition of the troposphere and middle atmosphere and to assess future changes caused by human activities.
UK NERC Thematic Research Programme to investigate the chemistry of the lower atmosphere (0 - 12 km) over the oceans. The studies aim to bring about a clearer understanding of natural processes in the remote marine atmosphere, and how these processes are affected by atmospheric pollution originating from the continents.
The impact of subsonic aircraft emissions on tropospheric NOx and ozone budgets has been studied at a preliminary level with models that focus on upper tropospheric chemistry and are acknowledged to be limited with respect to treatment of transport and the tropospheric NOx budget. SONEX aims to improve experimental data in this field.