On the radar frequency dependence of polar mesosphere summer echoes
Polar mesosphere summer echoes (PMSEs) are very strong radar echoes in the polar mesopause in local summer. Here we present the frequency dependence of the volume reflectivity and the effect of energetic particle precipitation on modulated PMSEs by using PMSEs observations carried out by European In...
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Online Access: | https://doi.org/10.26464/epp2020061 https://doaj.org/article/cd27271d76de42e8860762185596dc84 |
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ftdoajarticles:oai:doaj.org/article:cd27271d76de42e8860762185596dc84 2023-05-15T16:04:45+02:00 On the radar frequency dependence of polar mesosphere summer echoes ShuCan Ge HaiLong Li Lin Meng MaoYan Wang Tong Xu Safi Ullah Abdur Rauf Abdel Hannachid 2020-11-01T00:00:00Z https://doi.org/10.26464/epp2020061 https://doaj.org/article/cd27271d76de42e8860762185596dc84 EN eng Science Press http://www.eppcgs.org/article/doi/10.26464/epp2020061?pageType=en https://doaj.org/toc/2096-3955 2096-3955 doi:10.26464/epp2020061 https://doaj.org/article/cd27271d76de42e8860762185596dc84 Earth and Planetary Physics, Vol 4, Iss 6, Pp 571-578 (2020) polar mesosphere summer echoes artificial electron heating volume reflectivity energetic particle precipitation Science Q Geophysics. Cosmic physics QC801-809 Environmental sciences GE1-350 article 2020 ftdoajarticles https://doi.org/10.26464/epp2020061 2022-12-30T21:15:28Z Polar mesosphere summer echoes (PMSEs) are very strong radar echoes in the polar mesopause in local summer. Here we present the frequency dependence of the volume reflectivity and the effect of energetic particle precipitation on modulated PMSEs by using PMSEs observations carried out by European Incoherent SCATter (EISCAT) heating equipment simultaneously with very high frequency (VHF) radar and ultra high frequency (UHF) radar on 12 July 2007. According to the experimental observations, the PMSEs occurrence rate at VHF was much higher than that at UHF, and the altitude of the PMSEs maximum observed at VHF was higher than that at UHF. Overlapping regions were observed by VHF radar between high energetic particle precipitation and the PMSEs. In addition, high-frequency heating had a very limited impact on PMSEs when the UHF electron density was enhanced because of energetic particle precipitation. In addition, an updated qualitative method was used to study the relationship between volume reflectivity and frequency. The volume reflectivity was found to be inversely proportional to the fourth power of radar frequency. The theoretical and experimental results provide a definitive data foundation for further analysis and investigation of the physical mechanism of PMSEs. Article in Journal/Newspaper EISCAT Directory of Open Access Journals: DOAJ Articles Earth and Planetary Physics 4 6 1 8 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
polar mesosphere summer echoes artificial electron heating volume reflectivity energetic particle precipitation Science Q Geophysics. Cosmic physics QC801-809 Environmental sciences GE1-350 |
spellingShingle |
polar mesosphere summer echoes artificial electron heating volume reflectivity energetic particle precipitation Science Q Geophysics. Cosmic physics QC801-809 Environmental sciences GE1-350 ShuCan Ge HaiLong Li Lin Meng MaoYan Wang Tong Xu Safi Ullah Abdur Rauf Abdel Hannachid On the radar frequency dependence of polar mesosphere summer echoes |
topic_facet |
polar mesosphere summer echoes artificial electron heating volume reflectivity energetic particle precipitation Science Q Geophysics. Cosmic physics QC801-809 Environmental sciences GE1-350 |
description |
Polar mesosphere summer echoes (PMSEs) are very strong radar echoes in the polar mesopause in local summer. Here we present the frequency dependence of the volume reflectivity and the effect of energetic particle precipitation on modulated PMSEs by using PMSEs observations carried out by European Incoherent SCATter (EISCAT) heating equipment simultaneously with very high frequency (VHF) radar and ultra high frequency (UHF) radar on 12 July 2007. According to the experimental observations, the PMSEs occurrence rate at VHF was much higher than that at UHF, and the altitude of the PMSEs maximum observed at VHF was higher than that at UHF. Overlapping regions were observed by VHF radar between high energetic particle precipitation and the PMSEs. In addition, high-frequency heating had a very limited impact on PMSEs when the UHF electron density was enhanced because of energetic particle precipitation. In addition, an updated qualitative method was used to study the relationship between volume reflectivity and frequency. The volume reflectivity was found to be inversely proportional to the fourth power of radar frequency. The theoretical and experimental results provide a definitive data foundation for further analysis and investigation of the physical mechanism of PMSEs. |
format |
Article in Journal/Newspaper |
author |
ShuCan Ge HaiLong Li Lin Meng MaoYan Wang Tong Xu Safi Ullah Abdur Rauf Abdel Hannachid |
author_facet |
ShuCan Ge HaiLong Li Lin Meng MaoYan Wang Tong Xu Safi Ullah Abdur Rauf Abdel Hannachid |
author_sort |
ShuCan Ge |
title |
On the radar frequency dependence of polar mesosphere summer echoes |
title_short |
On the radar frequency dependence of polar mesosphere summer echoes |
title_full |
On the radar frequency dependence of polar mesosphere summer echoes |
title_fullStr |
On the radar frequency dependence of polar mesosphere summer echoes |
title_full_unstemmed |
On the radar frequency dependence of polar mesosphere summer echoes |
title_sort |
on the radar frequency dependence of polar mesosphere summer echoes |
publisher |
Science Press |
publishDate |
2020 |
url |
https://doi.org/10.26464/epp2020061 https://doaj.org/article/cd27271d76de42e8860762185596dc84 |
genre |
EISCAT |
genre_facet |
EISCAT |
op_source |
Earth and Planetary Physics, Vol 4, Iss 6, Pp 571-578 (2020) |
op_relation |
http://www.eppcgs.org/article/doi/10.26464/epp2020061?pageType=en https://doaj.org/toc/2096-3955 2096-3955 doi:10.26464/epp2020061 https://doaj.org/article/cd27271d76de42e8860762185596dc84 |
op_doi |
https://doi.org/10.26464/epp2020061 |
container_title |
Earth and Planetary Physics |
container_volume |
4 |
container_issue |
6 |
container_start_page |
1 |
op_container_end_page |
8 |
_version_ |
1766400372164788224 |