Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data
Accurate modeling of Earth’s ionospheric F-region currents is essential for refining geomagnetic field models and understanding magnetosphere-ionosphere coupling. In this study, we develop averaged models to characterize F-region currents using magnetic data from the MSS-1 (Macau Science Satellite-1...
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| Format: | Article |
| Language: | English |
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Science Press
2025-05-01
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| Series: | Earth and Planetary Physics |
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| Online Access: | http://www.eppcgs.org/article/doi/10.26464/epp2025052?pageType=en |
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| author | JuYuan Xu HongBo Yao Keke Zhang |
| author_facet | JuYuan Xu HongBo Yao Keke Zhang |
| author_sort | JuYuan Xu |
| collection | DOAJ |
| description | Accurate modeling of Earth’s ionospheric F-region currents is essential for refining geomagnetic field models and understanding magnetosphere-ionosphere coupling. In this study, we develop averaged models to characterize F-region currents using magnetic data from the MSS-1 (Macau Science Satellite-1) and Swarm satellite missions. Our approach employs a toroidal field representation, utilizing spherical harmonics to capture spatial variations and Fourier series to represent temporal dynamics. Two models, Model-A and Model-B, derived from distinct datasets, are constructed to represent current patterns at altitudes of 450 km and 512 km, respectively. Our models successfully capture the primary spatial structures and seasonal variations of polar field-aligned currents. Additionally, they accurately reproduce the localized inter-hemispheric field-aligned currents observed in mid and low latitudes during solstices, particularly between 14:00 and 16:00 magnetic local times. These findings enhance our understanding of ionospheric F-region currents and contribute to more precise geomagnetic field modeling. |
| format | Article |
| id | doaj-art-eed25b7ddb5f498280047140492695b0 |
| institution | OA Journals |
| issn | 2096-3955 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Science Press |
| record_format | Article |
| series | Earth and Planetary Physics |
| spelling | doaj-art-eed25b7ddb5f498280047140492695b02025-08-20T02:13:20ZengScience PressEarth and Planetary Physics2096-39552025-05-019373173910.26464/epp2025052S22598-xujuyuan-FIonospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic dataJuYuan Xu0HongBo Yao1Keke Zhang2Macau Institute of Space Technology and Application, Macau University of Science and Technology, Taipa, Macao 999078, ChinaMacau Institute of Space Technology and Application, Macau University of Science and Technology, Taipa, Macao 999078, ChinaMacau Institute of Space Technology and Application, Macau University of Science and Technology, Taipa, Macao 999078, ChinaAccurate modeling of Earth’s ionospheric F-region currents is essential for refining geomagnetic field models and understanding magnetosphere-ionosphere coupling. In this study, we develop averaged models to characterize F-region currents using magnetic data from the MSS-1 (Macau Science Satellite-1) and Swarm satellite missions. Our approach employs a toroidal field representation, utilizing spherical harmonics to capture spatial variations and Fourier series to represent temporal dynamics. Two models, Model-A and Model-B, derived from distinct datasets, are constructed to represent current patterns at altitudes of 450 km and 512 km, respectively. Our models successfully capture the primary spatial structures and seasonal variations of polar field-aligned currents. Additionally, they accurately reproduce the localized inter-hemispheric field-aligned currents observed in mid and low latitudes during solstices, particularly between 14:00 and 16:00 magnetic local times. These findings enhance our understanding of ionospheric F-region currents and contribute to more precise geomagnetic field modeling.http://www.eppcgs.org/article/doi/10.26464/epp2025052?pageType=enmacau science satellite-1swarmfield-aligned currentsgeomagnetism; ionosphere |
| spellingShingle | JuYuan Xu HongBo Yao Keke Zhang Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data Earth and Planetary Physics macau science satellite-1 swarm field-aligned currents geomagnetism; ionosphere |
| title | Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data |
| title_full | Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data |
| title_fullStr | Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data |
| title_full_unstemmed | Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data |
| title_short | Ionospheric F-region currents estimated from Macau Science Satellite-1 and Swarm satellite magnetic data |
| title_sort | ionospheric f region currents estimated from macau science satellite 1 and swarm satellite magnetic data |
| topic | macau science satellite-1 swarm field-aligned currents geomagnetism; ionosphere |
| url | http://www.eppcgs.org/article/doi/10.26464/epp2025052?pageType=en |
| work_keys_str_mv | AT juyuanxu ionosphericfregioncurrentsestimatedfrommacausciencesatellite1andswarmsatellitemagneticdata AT hongboyao ionosphericfregioncurrentsestimatedfrommacausciencesatellite1andswarmsatellitemagneticdata AT kekezhang ionosphericfregioncurrentsestimatedfrommacausciencesatellite1andswarmsatellitemagneticdata |