Abstract

This paper is meant to set the stage for some of the following presentations on kinetic physics, waves and turbulence in the solar wind. Firstly, a summary of some key observations is given, and the nature and possible origin of the fluctuations are discussed. Secondly, emphasis is placed on the kinetic aspects of the dissipation of turbulence and the related heating of the protons. Relevant features of the velocity distributions reflecting the wave-particle interactions are shortly discussed. Then some modern topics of turbulence such as intermittency, multifractals, selfsimilar scaling and observations of the structure function are dealt with. Finally, we address theoretical issues and problems associated with models based on two-scale energy transfer equations that have been proposed to describe the spatial and spectral evolution of MHD turbulence in the inhomogeneous solar wind.

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