Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state
Through respectively adding June tide and December tide at the low boundary of the GCITEM-IGGCAS model (Global Coupled Ionosphere–Thermosphere–Electrodynamics Model, Institute of Geology and Geophysics, Chinese Academy of Sciences), we simulate the influence of atmospheric tide on the annual anomali...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Science Press
2020-09-01
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| Series: | Earth and Planetary Physics |
| Subjects: | |
| Online Access: | http://www.eppcgs.org/article/doi/10.26464/epp2020041?pageType=en |
| _version_ | 1811296578398322688 |
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| author | ZhiPeng Ren WeiXing Wan JianGang Xiong Xing Li |
| author_facet | ZhiPeng Ren WeiXing Wan JianGang Xiong Xing Li |
| author_sort | ZhiPeng Ren |
| collection | DOAJ |
| description | Through respectively adding June tide and December tide at the low boundary of the GCITEM-IGGCAS model (Global Coupled Ionosphere–Thermosphere–Electrodynamics Model, Institute of Geology and Geophysics, Chinese Academy of Sciences), we simulate the influence of atmospheric tide on the annual anomalies of the zonal mean state of the ionospheric electron density, and report that the tidal influence varies with latitude, altitude, and solar activity level. Compared with the density driven by the December tide, the June tide mainly increases lower ionospheric electron densities (below roughly the height of 200 km), and decreases electron densities in the higher ionosphere (above the height of 200 km). In the low-latitude ionosphere, tides affect the equatorial ionization anomaly structure (EIA) in the relative difference of electron density, which suggests that tides affect the equatorial vertical E×B plasma drifts. Although the tide-driven annual anomalies do not vary significantly with the solar flux level in the lower ionosphere, in the higher ionosphere the annual anomalies generally decrease with solar activity. |
| first_indexed | 2024-04-13T05:50:27Z |
| format | Article |
| id | doaj.art-8f0263f813eb4fd7a3652a24f19b54f4 |
| institution | Directory Open Access Journal |
| issn | 2096-3955 |
| language | English |
| last_indexed | 2024-04-13T05:50:27Z |
| publishDate | 2020-09-01 |
| publisher | Science Press |
| record_format | Article |
| series | Earth and Planetary Physics |
| spelling | doaj.art-8f0263f813eb4fd7a3652a24f19b54f42022-12-22T02:59:48ZengScience PressEarth and Planetary Physics2096-39552020-09-014542943510.26464/epp2020041renzhipeng-2Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean stateZhiPeng Ren0WeiXing Wan1JianGang Xiong2Xing Li3Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaKey Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaSchool of Space and Environment, Beihang University, Beijing 100083, ChinaThrough respectively adding June tide and December tide at the low boundary of the GCITEM-IGGCAS model (Global Coupled Ionosphere–Thermosphere–Electrodynamics Model, Institute of Geology and Geophysics, Chinese Academy of Sciences), we simulate the influence of atmospheric tide on the annual anomalies of the zonal mean state of the ionospheric electron density, and report that the tidal influence varies with latitude, altitude, and solar activity level. Compared with the density driven by the December tide, the June tide mainly increases lower ionospheric electron densities (below roughly the height of 200 km), and decreases electron densities in the higher ionosphere (above the height of 200 km). In the low-latitude ionosphere, tides affect the equatorial ionization anomaly structure (EIA) in the relative difference of electron density, which suggests that tides affect the equatorial vertical E×B plasma drifts. Although the tide-driven annual anomalies do not vary significantly with the solar flux level in the lower ionosphere, in the higher ionosphere the annual anomalies generally decrease with solar activity.http://www.eppcgs.org/article/doi/10.26464/epp2020041?pageType=enionospheric annual anomaliesatmospheric tideionosphere–atmosphere coupling |
| spellingShingle | ZhiPeng Ren WeiXing Wan JianGang Xiong Xing Li Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state Earth and Planetary Physics ionospheric annual anomalies atmospheric tide ionosphere–atmosphere coupling |
| title | Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| title_full | Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| title_fullStr | Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| title_full_unstemmed | Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| title_short | Influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| title_sort | influence of annual atmospheric tide asymmetry on annual anomalies of the ionospheric mean state |
| topic | ionospheric annual anomalies atmospheric tide ionosphere–atmosphere coupling |
| url | http://www.eppcgs.org/article/doi/10.26464/epp2020041?pageType=en |
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