Transitions of zonal flows in a two-layer quasi-geostrophic ocean model

  title={Transitions of zonal flows in a two-layer quasi-geostrophic ocean model},
  author={Mustafa Şeng{\"u}l and Micka{\"e}l D. Chekroun and Henk A. Dijkstra and Shouhong Wang},
We consider a 2-layer quasi-geostrophic ocean model where the upper layer is forced by a steady Kolmogorov wind stress in a periodic channel domain, which allows to mathematically study the nonlinear development of the resulting flow. The model supports a steady parallel shear flow as a response to the wind stress. As the maximal velocity of the shear flow (equivalently the maximal amplitude of the wind forcing) exceeds a critical threshold, the zonal jet destabilizes due to baroclinic… 


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