Wave interactions in a shallow-water model
1998 (English)In: Nonlinear processes in geophysics, ISSN 1023-5809, E-ISSN 1607-7946, Vol. 5, no 3, 137-144 p.Article in journal (Refereed) Published
By using a Hamiltonian method, non-linear three-wave interaction in a class of systems related to the shallow water model is considered and a general coupling coefficient is presented. In the special case where two inertial waves and one Rossby wave interact resonantly, it is found that even a very small shear of the background velocity can be important in the interaction process. The stability of the system is considered by using a pseudoenergy method. Some implications for the dynamics of atmospheric flows are pointed out.
Place, publisher, year, edition, pages
1998. Vol. 5, no 3, 137-144 p.
Wave interactions, hamiltonian formulation, shallow-water model
Research subject Theoretical Physics
IdentifiersURN: urn:nbn:se:umu:diva-44231DOI: 10.5194/npg-5-137-1998OAI: oai:DiVA.org:umu-44231DiVA: diva2:419457