Influences of the state of ionospheric background on ionospheric heating effects
According to the well-performed ionospheric heating experiments at Arecibo in the low latitudes as well as at Tromsø in the high latitudes, the large-scale modification effects are simulated under an assumption of equivalent conditions, i.e., with the same effective radiative power and the same rati...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2014-01-01
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| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6308 |
| _version_ | 1818254244923310080 |
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| author | Shuji Hao Li Qingliang Che haiqin Yang Jutao Yan Yubo Wu Zhensen Xu Zhenwen |
| author_facet | Shuji Hao Li Qingliang Che haiqin Yang Jutao Yan Yubo Wu Zhensen Xu Zhenwen |
| author_sort | Shuji Hao |
| collection | DOAJ |
| description | According to the well-performed ionospheric heating experiments at Arecibo in the low latitudes as well as at Tromsø in the high latitudes, the large-scale modification effects are simulated under an assumption of equivalent conditions, i.e., with the same effective radiative power and the same ratio of the heating frequency fHF to the critical frequency of ionospheric F region foF2. The findings are extensively exploited to verify the validation of our model by comparison to the experimental results. Further, a detailed study is carried out on the influences of the background electron density gradient as well as the ratio of fHF to foF2 on heating effects. Conclusions are drawn as follows: under certain conditions, a smaller electron density gradient of background ionospheric F region leads to a better ionospheric heating effect; during over-dense heating, the heating effects are enhanced if the ratio of fHF to foF2 increases, which is slightly limited by the resultant elevation of the reflection height. However, there might be a better ratio range with small values of the ratio of fHF to foF2, e.g., [0.5, 0.7] in the current study. Finally, we analyzed how to select heating parameters efficiently under adverse conditions so to obtain relatively effective results. |
| first_indexed | 2024-12-12T16:52:54Z |
| format | Article |
| id | doaj.art-82a2eb8ee7724b7fac9e5e22f6f04168 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-12T16:52:54Z |
| publishDate | 2014-01-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-82a2eb8ee7724b7fac9e5e22f6f041682022-12-22T00:18:18ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2014-01-0156510.4401/ag-63085896Influences of the state of ionospheric background on ionospheric heating effectsShuji Hao0Li Qingliang1Che haiqin2Yang Jutao3Yan Yubo4Wu Zhensen5Xu Zhenwen6Xidian University, Department of Physics, Xi’anChina Research Institute of Radiowave Propagation, QingdaoChina Research Institute of Radiowave Propagation, QingdaoChina Research Institute of Radiowave Propagation, QingdaoChina Research Institute of Radiowave Propagation, QingdaoXidian University, Department of Physics, Xi’anChina Research Institute of Radiowave Propagation, QingdaoAccording to the well-performed ionospheric heating experiments at Arecibo in the low latitudes as well as at Tromsø in the high latitudes, the large-scale modification effects are simulated under an assumption of equivalent conditions, i.e., with the same effective radiative power and the same ratio of the heating frequency fHF to the critical frequency of ionospheric F region foF2. The findings are extensively exploited to verify the validation of our model by comparison to the experimental results. Further, a detailed study is carried out on the influences of the background electron density gradient as well as the ratio of fHF to foF2 on heating effects. Conclusions are drawn as follows: under certain conditions, a smaller electron density gradient of background ionospheric F region leads to a better ionospheric heating effect; during over-dense heating, the heating effects are enhanced if the ratio of fHF to foF2 increases, which is slightly limited by the resultant elevation of the reflection height. However, there might be a better ratio range with small values of the ratio of fHF to foF2, e.g., [0.5, 0.7] in the current study. Finally, we analyzed how to select heating parameters efficiently under adverse conditions so to obtain relatively effective results.http://www.annalsofgeophysics.eu/index.php/annals/article/view/6308Ionospheric heatingIonospheric backgroundHeating effectsHeating parametersElectron density gradient |
| spellingShingle | Shuji Hao Li Qingliang Che haiqin Yang Jutao Yan Yubo Wu Zhensen Xu Zhenwen Influences of the state of ionospheric background on ionospheric heating effects Annals of Geophysics Ionospheric heating Ionospheric background Heating effects Heating parameters Electron density gradient |
| title | Influences of the state of ionospheric background on ionospheric heating effects |
| title_full | Influences of the state of ionospheric background on ionospheric heating effects |
| title_fullStr | Influences of the state of ionospheric background on ionospheric heating effects |
| title_full_unstemmed | Influences of the state of ionospheric background on ionospheric heating effects |
| title_short | Influences of the state of ionospheric background on ionospheric heating effects |
| title_sort | influences of the state of ionospheric background on ionospheric heating effects |
| topic | Ionospheric heating Ionospheric background Heating effects Heating parameters Electron density gradient |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/6308 |
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