The scientific objectives of P2OA cover five topics :
- T1 : Atmospheric Physico-chemistry at large scale, and climatic impact
- T2 : Atmospheric Dynamics, Surface/Atmosphère Interactions, Diurnal cycle of the planetary boundary layer in complex terrain and heterogeneous surface
- T3 : Mountain Meteorology, Influence of local and regional scales on the atmospheric composition
- T4 : Atmospheric Electricity
- T5 : Geochemical cycles in the environment