Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase
Based on the output data of the magnetogram inversion technique, we analyze the dynamics of the Pedersen ionospheric currents and field-aligned currents (FACs) in the night mesoscale cells of the three main large-scale Iijima and Potemra Regions (R1, R2 and R0) during the expansion phase of the summ...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2019-09-01
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| Series: | Геодинамика и тектонофизика |
| Subjects: | |
| Online Access: | https://www.gt-crust.ru/jour/article/view/894 |
| _version_ | 1797855722387537920 |
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| author | V. V. Mishin S. B. Lunyushkin V. M. Mishin M. A. Kurikalova Yu. V. Penskikh |
| author_facet | V. V. Mishin S. B. Lunyushkin V. M. Mishin M. A. Kurikalova Yu. V. Penskikh |
| author_sort | V. V. Mishin |
| collection | DOAJ |
| description | Based on the output data of the magnetogram inversion technique, we analyze the dynamics of the Pedersen ionospheric currents and field-aligned currents (FACs) in the night mesoscale cells of the three main large-scale Iijima and Potemra Regions (R1, R2 and R0) during the expansion phase of the summer and winter substorms. FACs play a key role in the ionosphere-magnetosphere interaction. The continuity equation for the electric current density contains two types of possible feedback within the electric circuit parts that connect Pedersen currents and FACs in each cell. Pedersen ionospheric conductivity is dominant to Type 1, and the electric field dominates in Type 2 feedback. This paper studies both types of physical feedback in mesoscale cells of downward and upward FACs on the night side of the polar ionosphere from the data of two selected substorms of the summer and winter seasons in the northern hemisphere. |
| first_indexed | 2024-04-09T20:27:41Z |
| format | Article |
| id | doaj.art-71f8f1eb8b4d44bbbe775042a5a29e2a |
| institution | Directory Open Access Journal |
| issn | 2078-502X |
| language | English |
| last_indexed | 2024-04-09T20:27:41Z |
| publishDate | 2019-09-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj.art-71f8f1eb8b4d44bbbe775042a5a29e2a2023-03-30T20:08:04ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2019-09-0110366367210.5800/GT-2019-10-3-0433431Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phaseV. V. Mishin0S. B. Lunyushkin1V. M. Mishin2M. A. Kurikalova3Yu. V. Penskikh4Institute of Solar-Terrestrial Physics, Siberian Branch of RASInstitute of Solar-Terrestrial Physics, Siberian Branch of RASInstitute of Solar-Terrestrial Physics, Siberian Branch of RASInstitute of Solar-Terrestrial Physics, Siberian Branch of RASInstitute of Solar-Terrestrial Physics, Siberian Branch of RASBased on the output data of the magnetogram inversion technique, we analyze the dynamics of the Pedersen ionospheric currents and field-aligned currents (FACs) in the night mesoscale cells of the three main large-scale Iijima and Potemra Regions (R1, R2 and R0) during the expansion phase of the summer and winter substorms. FACs play a key role in the ionosphere-magnetosphere interaction. The continuity equation for the electric current density contains two types of possible feedback within the electric circuit parts that connect Pedersen currents and FACs in each cell. Pedersen ionospheric conductivity is dominant to Type 1, and the electric field dominates in Type 2 feedback. This paper studies both types of physical feedback in mesoscale cells of downward and upward FACs on the night side of the polar ionosphere from the data of two selected substorms of the summer and winter seasons in the northern hemisphere.https://www.gt-crust.ru/jour/article/view/894electric field and ionosphere conductivityfield-aligned currentsfeedbacksubstormmesoscale cells |
| spellingShingle | V. V. Mishin S. B. Lunyushkin V. M. Mishin M. A. Kurikalova Yu. V. Penskikh Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase Геодинамика и тектонофизика electric field and ionosphere conductivity field-aligned currents feedback substorm mesoscale cells |
| title | Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase |
| title_full | Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase |
| title_fullStr | Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase |
| title_full_unstemmed | Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase |
| title_short | Estimation of the contributions of conductance and electric field to the intensity of field-aligned currents in the night polar ionosphere during substorm expansion phase |
| title_sort | estimation of the contributions of conductance and electric field to the intensity of field aligned currents in the night polar ionosphere during substorm expansion phase |
| topic | electric field and ionosphere conductivity field-aligned currents feedback substorm mesoscale cells |
| url | https://www.gt-crust.ru/jour/article/view/894 |
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