Impact of electrical storms of magnetospheric-ionospheric origin on geospheres interaction
Рубрика:
| 1Chernogor, LF 1V.N. Karazin Kharkiv National University, Kharkiv, Ukraine |
| Kinemat. fiz. nebesnyh tel (Online) 2025, 41(4):3-19 |
| https://doi.org/10.15407/kfnt2025.04.003 |
| Язык: Ukrainian |
Аннотация: An urgent task is the quantitative analysis of processes in the electric field — ionospheric current — atmosphere — ionosphere and electric field — atmosphere — lithosphere subsystems caused by a powerful electrical storm. The purpose of the paper is to assess the impact of electrical storms of magnetospheric-ionospheric origin on the interaction of outer and inner geospheres. The role of electrical storms of magnetospheric-ionospheric origin in the interaction of the outer and inner geospheres in the SIMMIAE system is quantitatively assessed. It is established that due to the dissipation of the ionospheric current under the influence of electric field, the atmospheric temperature at altitudes of 120...350 km increases by tens to hundreds of kelvins during the daytime and by units to hundreds of kelvins at night. It is shown that heated atmospheric gas rises upward at a speed varying depending on the altitude within the range of tens to hundreds of meters per second. The characteristic time of ascent of heated atmospheric gas decreases with increasing altitude from 10 min to 4 min during the daytime and from 40 min to 8...9 min at night. The heat flux density is maximum at an altitude of ~150 km and amounts to 20 mW/m2 during the daytime and 0.1...0.2 mW/m2 at night. The maximum power of Joule heat in the atmosphere is ~200 GW during the daytime and 1...2 GW at night. The quantity of Joule heat in the atmosphere reaches 200 TJ during the daytime and 5...6 TJ at night. An electrical storm of magnetospheric-ionospheric origin causes an electrical storm in the lithosphere. The electric field strength in the lithosphere can reach 10...100 μV/m, while the Joule heat power and energy can reach 1...1000 MW and 1...40000 GJ, respectively. It is shown that Joule heating of the atmosphere and lithosphere is a trigger process with respect to the action of the electric field. The trigger coefficient reaches 1010...1011 for the thermosphere and 1012...1013 for the lithosphere. Seven-level classification scales for electrical storms in the atmosphere and lithosphere are proposed. |
| Ключевые слова: electrical storm, geospace storm, geospheres interaction, ionospheric storm, Joule heating, lithospheric storm, trigger effect |
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