Meso-Scale Electrodynamic Coupling of the Earth Magnetosphere-Ionosphere System
| العنوان: | Meso-Scale Electrodynamic Coupling of the Earth Magnetosphere-Ionosphere System |
|---|---|
| المؤلفون: | Yiqun Yu, Jinbin Cao, Zuyin Pu, Vania K. Jordanova, Aaron Ridley |
| المصدر: | Space Science Reviews. 218 |
| بيانات النشر: | Springer Science and Business Media LLC, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Space and Planetary Science, Astronomy and Astrophysics |
| الوصف: | Within the fully integrated magnetosphere-ionosphere system, many electrodynamic processes interact with each other. We review recent advances in understanding three major meso-scale coupling processes within the system: the transient field-aligned currents (FACs), mid-latitude plasma convection, and auroral particle precipitation. (1) Transient FACs arise due to disturbances from either dayside or nightside magnetosphere. As the interplanetary shocks suddenly compress the dayside magnetosphere, short-lived FACs are induced at high latitudes with their polarity successively changing. Magnetotail dynamics, such as substorm injections, can also disturb the current structures, leading to the formation of substorm current wedges and ring current disruption. (2) The mid-latitude plasma convection is closely associated with electric fields in the system. Recent studies have unraveled some important features and mechanisms of subauroral fast flows. (3) Charged particles, while drifting around the Earth, often experience precipitating loss down to the upper atmosphere, enhancing the auroral conductivity. Recent studies have been devoted to developing more self-consistent geospace circulation models by including a better representation of the auroral conductance. It is expected that including these new advances in geospace circulation models could promisingly strengthen their forecasting capability in space weather applications. The remaining challenges especially in the global modeling of the circulation system are also discussed. |
| تدمد: | 1572-9672 0038-6308 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::d9b6fd6e842fea5a24c980b4457ff301 https://doi.org/10.1007/s11214-022-00940-0 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........d9b6fd6e842fea5a24c980b4457ff301 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15729672 00386308 |
|---|