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Vertical structure of the midlatitude winter F region of the ionosphere during postmidnight enhancements in NmF2
Pleiades Publishing Ltd - Tập 49 - Trang 490-496 - 2009
The behavior of the vertical structure of the ionospheric F2 layer, including the variations in the heights of the maximum and bottom of the layer, its half-thickness, and electron content at some fixed heights during postmidnight enhancements in the electron density at the F2 layer maximum (NmF2), has been studied based on the data of the ionospheric vertical sounding, conducted in Alma-Ata (76°5...... hiện toàn bộ
Quá Trình Xoay của Vành Đai Mặt Trời từ Các Quan Sát Phát Xạ Sóng Phát và X-Ray trong Các Chu Kỳ Hoạt Động Của Mặt Trời 22-24 Dịch bởi AI
Pleiades Publishing Ltd - Tập 61 - Trang 1101-1107 - 2022
Các giá trị của dòng phát sóng radio và X-ray của mặt trời trong ba chu kỳ hoạt động gần đây đã được nghiên cứu nhằm xác định sự tồn tại của các dao động bán định kỳ thông qua việc xây dựng một phổ hợp nhất. Các chu kỳ bán định kỳ mà chúng tôi phát hiện chủ yếu là do sự điều chế của các dòng phát sóng radio và X-ray kéo dài bởi sự quay tự thân của Mặt Trời. Chúng tôi đặc biệt chú ý đến việc nghiên...... hiện toàn bộ
#vành đai Mặt Trời #dòng phát sóng radio #X-ray #chu kỳ mặt trời #dao động bán định kỳ
Features of the Spatial Distribution of a Beam of Whistler-Range Radiation Incident on the Nighttime Ionosphere from above
Pleiades Publishing Ltd - Tập 61 - Trang 819-829 - 2021
The problem of numerical calculation of the spatial dependence of a whistler-radiation beam incident on the nighttime ionosphere from above is considered. For the calculations, we used the collocation method to solve the boundary value problem, the matrix algorithm for the approximate solution of wave equations in a smoothly inhomogeneous plane-layered plasma, and the method of fast Fourier transf...... hiện toàn bộ
The Role of Quasi-Transverse Propagation in Observed Polarization of Flare Loop Microwave Radiation
Pleiades Publishing Ltd - Tập 57 - Trang 988-995 - 2018
The ordinary mode of gyrosynchrotron radiation was identified to be predominant in some segments of flare loops in solar flares of July 19, 2012, and October 22, 2014. These events were studied by investigation of the quasi-transverse propagation effect on the observed polarization. The analysis involved reconstruction of the magnetic field topology at the linear force-free approximation based on ...... hiện toàn bộ
Variations in the geomagnetic field strength in the 5th–3rd centuries BC in the eastern Mediterranean (according to narrowly dated ceramics)
Pleiades Publishing Ltd - - 2008
On the Prognostic Efficiency of Topological Descriptors for Magnetograms of Active Regions
Pleiades Publishing Ltd - Tập 57 - Trang 1086-1091 - 2018
Solar flare prediction remains an important practical task of space weather. An increase in the amount and quality of observational data and the development of machine-learning methods has led to an improvement in prediction techniques. Additional information has been retrieved from the vector magnetograms; these have been recently supplemented by traditional line-of-sight (LOS) magnetograms. In t...... hiện toàn bộ
Interaction between the Alfvén wave and turbulent sheet
Pleiades Publishing Ltd - Tập 47 - Trang 570-579 - 2007
The interaction between the Alfvén wave and turbulent sheet (TS) with an anomalous conductivity has been considered. High frequency turbulence causes the appearance of not only anomalous field-aligned plasma conductivity but also cross-field conductivity. Alfvén waves can be partially reflect from TS, be absorbed in this sheet, and pass through TS. When field-aligned conductivity is predominant, t...... hiện toàn bộ
Energetics of the magnetospheric superstorm on November 20, 2003
Pleiades Publishing Ltd - Tập 49 - Trang 961-969 - 2010
The magnetospheric storm on November 20, 2003 was one of two greatest events in 1957–2003. The D
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index reached −472 nT, the polar cap potential drop exceeded 200 kV, the polar cap boundary expanded up to Φ = 60°, the plasma layer density in the synchronous orbit reached 5 cm−3, and the inner edge of the plasma sheet...... hiện toàn bộ
Effect of the Magnetopause and Bow Shock on Characteristics of Plasma Turbulence in the Earth’s Magnetosheath
Pleiades Publishing Ltd - Tập 58 - Trang 718-727 - 2018
The magnetosheath is a natural laboratory for the study of plasma turbulence. The magnetopause and the bow shock prevent freely development of turbulence and modify turbulent cascade. In this paper, the effect of the magnetosheath boundaries on the forms of frequency spectra of ion flux fluctuations is analyzed based on statistics. In addition, variance in the spectrum characteristics are consider...... hiện toàn bộ
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