The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes
Abstract In this paper, we examine the mechanism of middle‐ and low‐latitude sporadic‐E (Es) layer formation. Observations of ionosondes and meteor radars at stations of different latitudes show that Es layer also formed at low‐altitude nonwindshear points, which is distinct from prototypical windsh...
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| Format: | Article |
| Language: | English |
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Wiley
2021-12-01
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| Series: | Space Weather |
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| Online Access: | https://doi.org/10.1029/2021SW002883 |
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| author | Qiong Tang Chen Zhou Huixin Liu Yi Liu Jiaqi Zhao Zhibin Yu Zhengyu Zhao Xueshang Feng |
| author_facet | Qiong Tang Chen Zhou Huixin Liu Yi Liu Jiaqi Zhao Zhibin Yu Zhengyu Zhao Xueshang Feng |
| author_sort | Qiong Tang |
| collection | DOAJ |
| description | Abstract In this paper, we examine the mechanism of middle‐ and low‐latitude sporadic‐E (Es) layer formation. Observations of ionosondes and meteor radars at stations of different latitudes show that Es layer also formed at low‐altitude nonwindshear points, which is distinct from prototypical windshear theory. The theoretical modeling results show that metallic ions can effectively accumulate by the combined effect of the zonal and meridional winds in the mesosphere and the lower thermosphere region. Numerical simulation results also demonstrate that metallic ions can accumulate without wind shear at lower height (90–105 km) as a consequence of the MLT winds leading to the ion drifting downward. We suggest that the turbopause at 90–105 km plays an important role in forming low‐altitude Es layer in the middle‐ and low‐latitude regions. |
| format | Article |
| id | doaj-art-336d182c34f849fe8289eeafc253aa13 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-336d182c34f849fe8289eeafc253aa132025-01-14T16:27:22ZengWileySpace Weather1542-73902021-12-011912n/an/a10.1029/2021SW002883The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low LatitudesQiong Tang0Chen Zhou1Huixin Liu2Yi Liu3Jiaqi Zhao4Zhibin Yu5Zhengyu Zhao6Xueshang Feng7Institute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen ChinaDepartment of Space Physics School of Electronic Information Wuhan University Wuhan ChinaDepartment of Earth and Planetary Science Kyushu University Fukuoka JapanDepartment of Space Physics School of Electronic Information Wuhan University Wuhan ChinaInstitute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen ChinaInstitute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen ChinaInstitute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen ChinaInstitute of Space Science and Applied Technology Harbin Institute of Technology Shenzhen ChinaAbstract In this paper, we examine the mechanism of middle‐ and low‐latitude sporadic‐E (Es) layer formation. Observations of ionosondes and meteor radars at stations of different latitudes show that Es layer also formed at low‐altitude nonwindshear points, which is distinct from prototypical windshear theory. The theoretical modeling results show that metallic ions can effectively accumulate by the combined effect of the zonal and meridional winds in the mesosphere and the lower thermosphere region. Numerical simulation results also demonstrate that metallic ions can accumulate without wind shear at lower height (90–105 km) as a consequence of the MLT winds leading to the ion drifting downward. We suggest that the turbopause at 90–105 km plays an important role in forming low‐altitude Es layer in the middle‐ and low‐latitude regions.https://doi.org/10.1029/2021SW002883Es formationnon‐windshearturbopause |
| spellingShingle | Qiong Tang Chen Zhou Huixin Liu Yi Liu Jiaqi Zhao Zhibin Yu Zhengyu Zhao Xueshang Feng The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes Space Weather Es formation non‐windshear turbopause |
| title | The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes |
| title_full | The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes |
| title_fullStr | The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes |
| title_full_unstemmed | The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes |
| title_short | The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes |
| title_sort | possible role of turbopause on sporadic e layer formation at middle and low latitudes |
| topic | Es formation non‐windshear turbopause |
| url | https://doi.org/10.1029/2021SW002883 |
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