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Possible shear instability in the daytime midlatitude sporadic-E observed with InSAR and GPS-TEC
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| Title: | Possible shear instability in the daytime midlatitude sporadic-E observed with InSAR and GPS-TEC |
| Authors: | Maeda, Jun Browse this author →ORCID | | Suzuki, Takato Browse this author | | Furuya, Masato Browse this author →KAKEN DB | | Heki, Kosuke Browse this author →KAKEN DB |
| Issue Date: | 24-May-2016 |
| Abstract: | A coordinated observation of GPS total electron content (TEC) and space-borne interferometric synthetic aperture radar (InSAR) has been conducted to reveal both the large- and small-scale plasma structures of daytime midlatitude sporadic-E (Es). Both observations are used for the direct imaging of the plasma patches. GPS-TEC observations have shown a common frontal shape of Es elongated typically in the east-west (E-W) direction, while an interferogram derived from InSAR observation have revealed the small-scale (fine) structure of Es. Small-scale patches are aligned in the E-W direction which is the same azimuthal direction of dominant large-scale frontal structure. We speculate that the Kelvin-Helmholtz instability with the vertical shear of meridional winds is considered to be the most likely candidate for the generation mechanism of the small-scale plasma patches aligned in the zonal direction. |
| Description: | 日本地球惑星科学連合 2016年大会. P-EM16 大気圏・電離圏セッション. 2016年5月22日-5月26日. 幕張メッセ 国際会議場, 千葉県. |
| Conference Name: | 日本地球惑星科学連合大会 |
| Conference Sequence: | 2016 |
| Conference Place: | 千葉県 |
| Rights: | http://creativecommons.org/licenses/by-nc-sa/2.1/jp/ |
| Type: | conference presentation |
| URI: | http://hdl.handle.net/2115/62086 |
| Appears in Collections: | 附属図書館 (University Library) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 前田 隼
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