Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2022-05-26 |
タイトル |
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タイトル |
Comparison of Digisonde derived ion drifts and SuperDARN line-of-sight velocities over Zhongshan Station, Antarctica |
タイトル |
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言語 |
en |
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タイトル |
Comparison of Digisonde derived ion drifts and SuperDARN line-of-sight velocities over Zhongshan Station, Antarctica |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Doppler shift |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Plasma flow |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
SuperDARN HF radar |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Digisonde portable sounder DPS |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Polar ionosphere |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
著者 |
Chen, Xiangcai
Liu, Jianjun
Liu, Ruiyuan
Hu, Hongqiao
Zhang, Beichen
Yukimatu, Akira Sessai
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抄録 |
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内容記述タイプ |
Abstract |
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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 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
18739652 |
DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.polar.2022.100789 |
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関連名称 |
10.1016/j.polar.2022.100789 |