title: Shock modon: a new type of coherent structure in rotating shallow water.
abstract: We show that a new type of coherent structure, a shock modon, exists in a rotating shallow water model at large Rossby numbers. It is a combination of an asymmetric vortex dipole with a stationary hydraulic jump. The structure is long living, despite the energy dissipation by the hydraulic jump, and moving along a circular path. Collisions of shock modons can be elastic, or lead to formation of shock tripoles.
authors.affiliation: Laboratoire de Météorologie Dynamique/IPSL, UPMC-ENS, Paris, France.
authors.forename: Noé
authors.initials: N
authors.lastname: Lahaye
authors.forename: Vladimir
authors.initials: V
authors.lastname: Zeitlin