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For SuperDARN Syowa East (SYE) and Kerguelen (KER) radars that intersect with ZHS, a data set comprised of adjacent range gates from nearest radar beams is used. Digisonde ion drift measurements were projected onto the direction of co-located and concurrent line-of-sight SuperDARN velocities. A comparison of the velocities shows a clear correlation (R = 0.92) between the two data sets. Projected Digisonde velocity was found to be, on average, larger than the line-of-sight SuperDARN radar velocities by a factor of 1.7. Time dependence distributions of Digisonde-SuperDARN SYE radars showed that the larger velocity discrepancies are more located at the dawnside convection cell. 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Comparison of Digisonde derived ion drifts and SuperDARN line-of-sight velocities over Zhongshan Station, Antarctica
https://nipr.repo.nii.ac.jp/records/16910
https://nipr.repo.nii.ac.jp/records/16910b4728059-bcf7-4f0e-9cb2-7a02619ed737
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2022-05-26 | |||||
タイトル | ||||||
タイトル | Comparison of Digisonde derived ion drifts and SuperDARN line-of-sight velocities over Zhongshan Station, Antarctica | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Comparison of Digisonde derived ion drifts and SuperDARN line-of-sight velocities over Zhongshan Station, Antarctica | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Doppler shift | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Plasma flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | SuperDARN HF radar | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Digisonde portable sounder DPS | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Polar ionosphere | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Chen, Xiangcai
× Chen, Xiangcai× Liu, Jianjun× Liu, Ruiyuan× Hu, Hongqiao× Zhang, Beichen× Yukimatu, Akira Sessai |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this study, ion drift velocities measured by Digisonde instruments over Zhongshan Station (ZHS, geog. 69.38°S, 76.38°E), Antarctica, are compared with measurements from Super Dual Auroral Radar Network (SuperDARN) HF radars. For SuperDARN Syowa East (SYE) and Kerguelen (KER) radars that intersect with ZHS, a data set comprised of adjacent range gates from nearest radar beams is used. Digisonde ion drift measurements were projected onto the direction of co-located and concurrent line-of-sight SuperDARN velocities. A comparison of the velocities shows a clear correlation (R = 0.92) between the two data sets. Projected Digisonde velocity was found to be, on average, larger than the line-of-sight SuperDARN radar velocities by a factor of 1.7. Time dependence distributions of Digisonde-SuperDARN SYE radars showed that the larger velocity discrepancies are more located at the dawnside convection cell. Considering the known features of the high-latitude convection patterns at cusp latitude, the statistical results imply the velocity discrepancies are related to the differences in the temporal and spatial evolution of plasma structures. | |||||
書誌情報 |
en : Polar Science 巻 31, p. 100789, 発行日 2022-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polar.2022.100789 | |||||
関連名称 | 10.1016/j.polar.2022.100789 |