Abstract
The atmospheres of the giant planets (Jupiter, Saturn, Uranus, and Neptune) exhibit a rich variety of dynamical phenomena at different spatial and temporal scales that are yet not fully understood. The instrumentation under development for the 10 m GTC telescope will allow us to observe the dynamics of such phenomena at cloud level, and to characterize their temperature and minor constituent distributions. We propose different types of observations for the study of the zonal wind profile, meteorology (vortices, convective storms, and waves) and upper cloud layering and particle properties.