Evidence of X-mode heating suppressing O-mode heating
In this study, we present three experiments carried out at the EISCAT (European Incoherent Scatter Scientific Association) heating facility on October 29 and 30, 2015. The results from the first experiment showed overshoot during the O-mode heating period. The second experiment, which used cold-star...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Science Press
2020-11-01
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| Series: | Earth and Planetary Physics |
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| Online Access: | http://www.eppcgs.org/article/doi/10.26464/epp2020068?pageType=en |
| _version_ | 1811218706738446336 |
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| author | Ting Feng Chen Zhou Xiang Wang MoRan Liu ZhengYu Zhao |
| author_facet | Ting Feng Chen Zhou Xiang Wang MoRan Liu ZhengYu Zhao |
| author_sort | Ting Feng |
| collection | DOAJ |
| description | In this study, we present three experiments carried out at the EISCAT (European Incoherent Scatter Scientific Association) heating facility on October 29 and 30, 2015. The results from the first experiment showed overshoot during the O-mode heating period. The second experiment, which used cold-start X-mode heating, showed the generation of parametric decay instability, whereas overshoot was not observed. The third experiment used power-stepped X-mode heating with noticeable O-mode wave leakage. Parametric decay instability and oscillating two-stream instability were generated at the O-mode reflection height without the overshoot effect, which implies suppression of the thermal parametric instability with X-mode heating. We propose that the electron temperature increased because X-mode heating below the upper hybrid height decreased the growth rate of the thermal parametric instability. |
| first_indexed | 2024-04-12T07:13:53Z |
| format | Article |
| id | doaj.art-6ab2f7641fb64684b94a98086999516a |
| institution | Directory Open Access Journal |
| issn | 2096-3955 |
| language | English |
| last_indexed | 2024-04-12T07:13:53Z |
| publishDate | 2020-11-01 |
| publisher | Science Press |
| record_format | Article |
| series | Earth and Planetary Physics |
| spelling | doaj.art-6ab2f7641fb64684b94a98086999516a2022-12-22T03:42:33ZengScience PressEarth and Planetary Physics2096-39552020-11-014658859710.26464/epp2020068fengting-FEvidence of X-mode heating suppressing O-mode heatingTing Feng0Chen Zhou1Xiang Wang2MoRan Liu3ZhengYu Zhao4Department of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, ChinaDepartment of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, ChinaDepartment of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, ChinaDepartment of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, ChinaDepartment of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, ChinaIn this study, we present three experiments carried out at the EISCAT (European Incoherent Scatter Scientific Association) heating facility on October 29 and 30, 2015. The results from the first experiment showed overshoot during the O-mode heating period. The second experiment, which used cold-start X-mode heating, showed the generation of parametric decay instability, whereas overshoot was not observed. The third experiment used power-stepped X-mode heating with noticeable O-mode wave leakage. Parametric decay instability and oscillating two-stream instability were generated at the O-mode reflection height without the overshoot effect, which implies suppression of the thermal parametric instability with X-mode heating. We propose that the electron temperature increased because X-mode heating below the upper hybrid height decreased the growth rate of the thermal parametric instability.http://www.eppcgs.org/article/doi/10.26464/epp2020068?pageType=enionospheric heatingparametric decay instabilitythermal parametric instabilityovershootsuppression |
| spellingShingle | Ting Feng Chen Zhou Xiang Wang MoRan Liu ZhengYu Zhao Evidence of X-mode heating suppressing O-mode heating Earth and Planetary Physics ionospheric heating parametric decay instability thermal parametric instability overshoot suppression |
| title | Evidence of X-mode heating suppressing O-mode heating |
| title_full | Evidence of X-mode heating suppressing O-mode heating |
| title_fullStr | Evidence of X-mode heating suppressing O-mode heating |
| title_full_unstemmed | Evidence of X-mode heating suppressing O-mode heating |
| title_short | Evidence of X-mode heating suppressing O-mode heating |
| title_sort | evidence of x mode heating suppressing o mode heating |
| topic | ionospheric heating parametric decay instability thermal parametric instability overshoot suppression |
| url | http://www.eppcgs.org/article/doi/10.26464/epp2020068?pageType=en |
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