Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
2001-09-01 |
タイトル |
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タイトル |
First mesopause temperature measurements using sodium lidar observations in the Antarctic region |
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 |
10.15094/00006328 |
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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) |
Kawahara, Takuya D.
Kitahara, Tsukasa
Kobayashi, Fumitoshi
Tsutsumi, Masaki
Saito, Yasunori
Nomura, Akira
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著者所属(英) |
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en |
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Department of Information Engineering, Shinshu University/Department of Information Engineering, Shinshu University/Department of Information Engineering, Shinshu University/National Institute of Polar Research/Department of Information Engineering, Shinshu University/Department of Information Engineering, Shinshu University |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
The mesopause temperature structure was observed using a sodium temperature lidar system at Syowa Station (69°00' S, 39°35' E), beginning in February 2000. The laser transmitter was newly developed and included two injection-seeded Nd: YAG lasers. Regular observations were performed using the two-frequency technique as demonstrated by C.Y. She et al. (Geophys. Res. Lett., 17, 929, 1990), with a spatial resolution of about 1 km and a temporal resolution of 6 min. The temperature structures of the 85km to 105km region of the upper atmosphere were measured by Na D_2 Doppler profile-fitting as well as the two-frequency technique. Temperatures derived from the two techniques agreed well and were consistent with the MSIS 90 model temperature structure. Night-time temperature variations over a 15-hour period were measured in May 2000. A large temperature fluctuation with an interval of about 4 hours, and an amplitude of 60 K (probably caused by gravity waves) was observed. From the average night temperature profile, the mesopause was determined to be located at 102km, and have a temperature of 180K. These values are similar to winter values observed in the northern hemisphere. |
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 15,
p. 23-31,
発行日 2001-09
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出版者 |
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出版者 |
National Institute of Polar Research |