Classification scheme of solar wind streams
A binary classification of solar wind types, according to the three main hydrodynamic parameters (proton speed, density and temperature), is presented. In the space of these parameters one can define borders for solar wind types: fast-hot-dense, fast-hot-rarefied, fast-cold-dense, fast-cold-rarefied, slow-hot-dense, slow-hot-rarefied, slow-cold-dense, and slow-cold-rarefied. These types arise from different manifestations of solar activity and occur at different frequencies at different phases of a solar cycle.
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