Advances in Atmospheric Sciences

, Volume 21, Issue 1, pp 34–40 | Cite as

Physical mechanism and model of turbulent cascades in a barotropic atmosphere

  • Huang Feng Email author
  • Liu Shikuo 


In a barotropic atmosphere, new Reynolds mean momentum equations including turbulent viscosity, dispersion, and instability are used not only to derive the KdV-Burgers-Kuramoto equation but also to analyze the physical mechanism of the cascades of energy and enstrophy. It shows that it is the effects of dispersion and instability that result in the inverse cascade. Then based on the conservation laws of the energy and enstrophy, a cascade model is put forward and the processes of the cascades are described.

Key words

physical mechanism cascade model turbulence barotropic atmosphere 


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Copyright information

© Advances in Atmospheric Sciences 2004

Authors and Affiliations

  1. 1.School of PhysicsPeking UniversityBeijing

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