Saturation of zonal flow
¥Different
expressions for random 3-wave (low γ) and
coherent (high γ) regimes
¥Intermediate
range with Uzf ~ V*.
¥Only
weak ZF damping dependence (important γ is at ρk~1).
¥ No oscillatory behaviour. ZF cannot fall
below the crit value because itÕd be
immediately pumped due to renewed instability.
