Search academic texts

Information × Registration Number 0215U003261, 0110U000288 , R & D reports Title Mathematical modeling of dynamic processes in near space, based on satellite observations popup.stage_title Head Cheremnykh Oleg, Доктор фізико-математичних наук Registration Date 22-01-2015 Organization Space Research Institute of National Academy of Sciences of Ukraine and State Space Agency of Ukraine popup.description2 It was shown theoretically the possibility of existence of areas on the Sun where there is a loss of stability differential rotation. In these areas the poloidal flow is generated in the form of Taylor vortices. A method to build predictive models of short-term geomagnetic indices based on solar activity. Software to predict geomagnetic activity was developed and tested on historical data and real-time data. The conditions for the implementation of resonant perturbations ULF - range of different polarization, which has been verified by observations from spacecrafts ere formulated. Resonant transverse small-scale perturbations are generated only if the vector of force perturbation directed in a certain way relative to magnetic surfaces. The distribution of medium-scale AGW in the polar regions were studied according to satellite measurements on Dynamic Explorer 2 satellite. On the basis of measurements of the satellite is found that in the polar thermosphere AGW systematically propagated against the wind and showed the tendency twisting azimuth waves around the geomagnetic poles. The methods for satellite data processing of wave processes were developed. In the linear approximation, the expression describing AGW propagation and absorption in Earth's atmosphere have obtained. The location of the absorption layer depends on local atmospheric parameters and spectral parameters of AGW, but not on the initial wave amplitude. Product Description popup.authors Беспалова Анна Вадимівна Крючков Євген Іванович Лєонтьєв Антон Юрійович Лізунов Георгій Вячеславович Ладіков-Роєв Юрій Павлович Логінов Олексій Олексійович Маслова Наталія Василівна П'янкова Олена Володимирівна Парновський Олексій Сергійович Скороход Тетяна Владиславівна Федоренко Алла Костянтинівна Черемних Олег Костянтинович popup.nrat_date 2020-04-02 Close