Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
2003-09-01 |
タイトル |
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タイトル |
A comparison between vertical winds in the lower thermosphere and magnetic field perturbations on the ground |
言語 |
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言語 |
eng |
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 |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00006368 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Ishii,Mamoru
Conde,Mark
Smith,Roger W.
Krynicki,Matthew
Sagawa,Eiichi
Watari,Shin'ichi
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著者所属(英) |
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en |
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Communications Research Laboratory, Independent Administrative Institution/Geophysical Institute, University of Alaska Fairbanks/Geophysical Institute, University of Alaska Fairbanks/Geophysical Institute, University of Alaska Fairbanks/Communications Research Laboratory, Ministry of Posts and Telecommunications, Koganei/Communications Research Laboratory, Ministry of Posts and Telecommunications, Koganei |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Vertical winds in the lower thermosphere are estimated from OI557.7-nm Doppler shifts obtained with a Fabry-Perot interferometer at the Poker Flat Research Range (65.12N, 147.43W in geographic coordinate), Alaska. The temporal variation of vertical winds was compared with the horizontal component of the magnetic field obtained at Poker Flat and two other sites, Gakona (62.12N, 145.14W) and Fort Yukon (66.36N, 145.22W). Two nights of observations were examined and the results were shown here. The results showed that temporal variations of vertical winds were similar to that of magnetic field variation during each substorm. In some cases the results of cross correlation between these two parameters showed that the magnetic field perturbation leads vertical winds in the earlier period of the substorm. The difference increased gradually and reached a maximum at around the center of the recovery phase. From there, the differences decreased. The mechanism for the relation between the two parameters is still unclear, but this result suggests an intimate relation between ionospheric currents and vertical wind in the thermosphere. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11397422 |
書誌情報 |
Advances in polar upper atmosphere research
巻 17,
p. 137-145,
発行日 2003-09
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出版者 |
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出版者 |
National Institute of Polar Research |