Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica
We report on the polar mesosphere summer echoes (PMSE) occurrence probability over SANAE (South African National Antarctic Expedition) IV, for the first time. A matching coincidence method is described and implemented for PMSE extraction from SuperDARN (Super Dual Auroral Radar Network) HF radar. Se...
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| Format: | Article |
| Language: | English |
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Springer
2015-01-01
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| Series: | Terrestrial, Atmospheric and Oceanic Sciences |
| Subjects: | |
| Online Access: |
http://tao.cgu.org.tw/pdf/v264p431.pdf
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| _version_ | 1811234177858666496 |
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| author | Olakunle Ogunjobi Venkataraman Sivakumar Judy Ann Elizabeth Stephenson and William Tafon Sivla |
| author_facet | Olakunle Ogunjobi Venkataraman Sivakumar Judy Ann Elizabeth Stephenson and William Tafon Sivla |
| author_sort | Olakunle Ogunjobi |
| collection | DOAJ |
| description | We report on the polar mesosphere summer echoes (PMSE) occurrence probability over SANAE (South African National Antarctic Expedition) IV, for the first time. A matching coincidence method is described and implemented for PMSE extraction from SuperDARN (Super Dual Auroral Radar Network) HF radar. Several SuperDARN-PMSE characteristics are studied during the summer period from years 2005 - 2007. The seasonal and interannual SuperDARN-PMSE variations in relation to the mesospheric neutral winds are studied and presented in this paper. The occurrence probability of SuperDARN-PMSE on the day-to-day scale show, predominantly, diurnal variation, with a broader peak between 12 - 14 LT and distinct minimum of 22 LT. The SuperDARN-PMSE occurrence probability rate is high in the summer solstice. Seasonal variations show a connection between the SuperDARN-PMSE occurrence probability rate and mesospheric temperature from SABER (Sounding of the Atmosphere using Broadband Emission Radiometry). The seasonal trend for both meridional and zonal winds is very stable year-to-year. Analysis of the neutral wind variations indicates the importance of pole-to-pole circulations in SuperDARN-PMSE generation. |
| first_indexed | 2024-04-12T11:32:19Z |
| format | Article |
| id | doaj.art-94db5ad7b03a47039db12dc78da2d78c |
| institution | Directory Open Access Journal |
| issn | 1017-0839 2311-7680 |
| language | English |
| last_indexed | 2024-04-12T11:32:19Z |
| publishDate | 2015-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Terrestrial, Atmospheric and Oceanic Sciences |
| spelling | doaj.art-94db5ad7b03a47039db12dc78da2d78c2022-12-22T03:34:58ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802015-01-0126443110.3319/TAO.2015.03.06.01(AA)1301Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in AntarcticaOlakunle OgunjobiVenkataraman SivakumarJudy Ann Elizabeth Stephensonand William Tafon SivlaWe report on the polar mesosphere summer echoes (PMSE) occurrence probability over SANAE (South African National Antarctic Expedition) IV, for the first time. A matching coincidence method is described and implemented for PMSE extraction from SuperDARN (Super Dual Auroral Radar Network) HF radar. Several SuperDARN-PMSE characteristics are studied during the summer period from years 2005 - 2007. The seasonal and interannual SuperDARN-PMSE variations in relation to the mesospheric neutral winds are studied and presented in this paper. The occurrence probability of SuperDARN-PMSE on the day-to-day scale show, predominantly, diurnal variation, with a broader peak between 12 - 14 LT and distinct minimum of 22 LT. The SuperDARN-PMSE occurrence probability rate is high in the summer solstice. Seasonal variations show a connection between the SuperDARN-PMSE occurrence probability rate and mesospheric temperature from SABER (Sounding of the Atmosphere using Broadband Emission Radiometry). The seasonal trend for both meridional and zonal winds is very stable year-to-year. Analysis of the neutral wind variations indicates the importance of pole-to-pole circulations in SuperDARN-PMSE generation. http://tao.cgu.org.tw/pdf/v264p431.pdf geophysicsgeologyatmospheric sciencespace scienceoceanic sciencehydrology |
| spellingShingle | Olakunle Ogunjobi Venkataraman Sivakumar Judy Ann Elizabeth Stephenson and William Tafon Sivla Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica Terrestrial, Atmospheric and Oceanic Sciences geophysics geology atmospheric science space science oceanic science hydrology |
| title | Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica |
| title_full | Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica |
| title_fullStr | Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica |
| title_full_unstemmed | Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica |
| title_short | Evidence of Polar Mesosphere Summer Echoes Observed by SuperDARN SANAE HF Radar in Antarctica |
| title_sort | evidence of polar mesosphere summer echoes observed by superdarn sanae hf radar in antarctica |
| topic | geophysics geology atmospheric science space science oceanic science hydrology |
| url |
http://tao.cgu.org.tw/pdf/v264p431.pdf
|
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