Geophysical Fluid Dynamics (GFD) is dealing with various aspects of the mathematical descriptions of rotating stratified fluids starting from the physical laws of hydro-thermo-dynamics. Historically, Physicists and Mathematicians originating from various disciplines developed physical and numerical models with increasing complexity, adding to our fundamental understanding of such flows and thereby unifying these fields. Today GFD is a truly interdisciplinary field of its own, which encompasses multiscale flows of planetary atmospheres and oceans, their weather and climate, and the motions of 'the solid Earth'.

In this session we invite contributions expanding our understanding of the complex behavior of geophysical flows, presenting novel techniques that either facilitate a deeper understanding or improve the efficacy of numerical procedures involved, and/or reviewing major advances in a particular aspect of geophysical fluid dynamics. The interdisciplinary character of dynamical and computational aspects of this session encourages an exchange of ideas and contributions across various fields, such as meteorology, oceanography, astrophysics, geological fluid dynamics, applied mathematics, and computational fluid dynamics with applications to ocean and atmosphere.

This year we particularly encourage contributions dealing with multi-scale interactions. This includes advances in the physical or mathematical description of such interactions, advances in the development of geophysical turbulence closure schemes, as well as progress in the development of adaptive numerical algorithms that facilitate the efficacy of multi-scale simulations. Since multi-scale interactions are important also in technical flows we likewise encourage contributions from engineering fluid mechanics for discussions and an exchange of ideas.