Satellite (IC-B-1300) data on the electromagnetic structures in the high-latitude ionosphere are presented. One can observe three kinds of vortices, namely vortex chains as well as solitary dipolar and monopolar vortex structures. The theoretical treatment that is carried out in the present paper is in reasonable agreement with the observations.

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From the soddy podzolic soils and typical chernozems of different texture and land use, dry 3-1 mm aggregates were isolated and sieved in water. As a result, water stable aggregates and water unstable particles composing dry 3-1 mm aggregates were obtained. These preparations were ground, and contact angles of wet ting were determined by the static sessile drop method. The angles varied from 11° to 85°. In most cases, the values of the angles for the water stable aggregates significantly exceeded those for the water unstable compo nents. In terms of carbon content in structural units, there was no correlation between these parameters. When analyzing the soil varieties separately, the significant positive correlation between the carbon content and contact angle of aggregates was revealed only for the loamy clayey typical chernozem. Based on the multivariate analysis of variance, the value of contact wetting angle was shown to be determined by the structural units belonging to water stable or water unstable components of macroaggregates and by the land use type. In addition, along with these parameters, the texture has an indirect effect.