Possible shear instability in the daytime midlatitude sporadic-E observed with InSAR and GPS-TEC

Maeda, Jun; Suzuki, Takato; Furuya, Masato; Heki, Kosuke

Possible shear instability in the daytime midlatitude sporadic-E observed with InSAR and GPS-TEC

Maeda, Jun; Suzuki, Takato; Furuya, Masato et al.

2016

Permalink : https://hdl.handle.net/2115/62086

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アクセス権	open access
URI	https://hdl.handle.net/2115/62086
タイトル	Possible shear instability in the daytime midlatitude sporadic-E observed with InSAR and GPS-TEC
著者	Maeda, Jun ; Suzuki, Takato ; Furuya, Masato ; Heki, Kosuke
ORCID 0000-0002-3755-0386 著者名 Maeda, Jun
著者名 Suzuki, Takato
e-Rad_Researcher 60313045 著者名 Furuya, Masato
e-Rad_Researcher 30280564 著者名 Heki, Kosuke
言語	英語
発行日	2016-05-24
記述	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.
抄録	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.
会議記述	会議名日本地球惑星科学連合大会回次 2016 開催地千葉県開催国 Japan
資源タイプ	会議発表資料
出版タイプ	Not Applicable (or Unknown)
権利情報	Creative Commons Attribution-NonCommercial-ShareAlike 2.1 Japan