radiatively and S/T exchanges) still imperfectly described in existing models. This will be valuable to improve knowledge about the processes occurring in the upper troposphere/ lower stratosphere (UT/LS), and the model treatment of near tropopause chemistry and transport.
Radiative and S/T exchanges remain poorly understood within existing frameworks. This knowledge will be essential for refining our grasp of the UT/LS region's dynamics, including the handling of chemical reactions and transport mechanisms near the tropopause.