Periodic Orbits and Disturbance Growth for Baroclinic Waves

  title={Periodic Orbits and Disturbance Growth for Baroclinic Waves},
  author={Roger Samelson}
The growth of linear disturbances to stable and unstable time-periodic basic states is analyzed in an asymptotic model of weakly nonlinear, baroclinic wave–mean interaction. In this model, an ordinary differential equation for the wave amplitude is coupled to a partial differential equation for the zonal-flow correction. Floquet vectors, the eigenmodes for linear disturbances to the oscillatory basic states, split into wave-dynamical and decaying zonal-flow modes. Singular vectors reflect the… CONTINUE READING