Modon (fluid dynamics)

In fluid dynamics, "modon" refers to a specific type of coherent structure or wave pattern that can arise in a fluid flow, characterized by its steady, localized circulation. The term is particularly associated with certain phenomena in geophysical fluid dynamics, especially in the context of large-scale ocean and atmospheric flows. Modons are often described as stability and persistence features in two-dimensional flows, where they represent a balanced interaction between a vortex and its associated wind field.