ИСТИНА

A new magnetohydrodynamic (MHD) classification of the solar wind is presented and discussed. This classification is based on four main MHD parameters: proton speed V, temperature T, density n and dimensionless plasma parameter beta for protons. In the space of these parameters the boundaries for fast (f) and slow (s), hot (h) and cold (c), dense (d) and rarefied (r), magnetized (m) and nonmagnetized (n) wind are set. In total, we obtain 16 solar wind types: fhdm, fhdn, fhrm, etc. We also add a zero type, which corresponds to the solar wind streams, where value of at least one parameter is close to the statistical average. We analyzed 1-minute OMNIWeb data for 23rd and 24th solar cycles and tried to find a correspondence of common and rare types with their sources at the Sun. All of the above types occur due to different solar activity phenomena and appear with various frequency at different phases of the solar cycles. We also propose that there is only a little sense to search localized coronal sources of the solar wind with average properties. It is due to nonlocality of the phenomenon.