Multipoint study of waves and nonlinear structures in the solar wind

Multipoint measurements at various points of the heliosphere are used for a statistical study of waves and nonlinear structures in the solar wind. Analysis of data from different locations in the heliosphere, that are connected by the solar wind flow, enable the identification of the origin of these waves and structures. Analysis of data in the region close to the Sun shows that this is the probable generation region of magnetic holes. Observation of the nonlinear disturbances as they propagate to 1 AU supports earlier suggestions by C.T. Russell that the region between Venus and the Earth is the shock incubator.