Conservation laws of wave action and potential enstrophy for Rossby waves in a stratified atmosphere
- Straus, D. M.
- Dec 1, 1983.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available. and Free-to-read Unrestricted online access
- The evolution of wave energy, enstrophy, and wave motion for atmospheric Rossby waves in a variable mean flow are discussed from a theoretical and pedagogic standpoint. In the absence of mean flow gradients, the wave energy density satisfies a local conservation law, with the appropriate flow velocity being the group velocity. In the presence of mean flow variations, wave energy is not conserved, but wave action is, provided the mean flow is independent of longitude. Wave enstrophy is conserved for arbitrary variations of the mean flow. Connections with Eliassen-Palm flux are also discussed.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19840023768., Accession ID: 84N31838., NAS 1.15:86058., and NASA-TM-86058.
- No Copyright.
View MARC record | catkey: 15707081