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

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/62086

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)

Submitter: 前田 隼

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