Alfven intermittent turbulence driven by temporal chaos

The temporal evolution of Alfven intermittent turbulence in cosmic plasmas is studied. The chaotic dynamics of a driven-dissipative Alfven system is d etermined by numerically solving the derivative nonlinear Schrodinger equat ion in the low-dimensional limit. Two types of Alfven intermittent turbulen ce are identified: Pomeau-Manneville intermittency and crisis-induced inter mittency. The significance of this theory for Alfvenic intermittent turbule nce observed in the solar wind is discussed.