Observations of mesospheric sporadic sodium layers with the MU radar and sodium lidars
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- Miyagawa Hirohisa
- Radio Atmospheric Science Center, Kyoto University
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- Nakamura Takuji
- Radio Atmospheric Science Center, Kyoto University
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- Tsuda Toshitaka
- Radio Atmospheric Science Center, Kyoto University
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- Abo Makoto
- Graduate School of Electrical Engineering, Tokyo Metropolitan University
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- Nagasawa Chikao
- Graduate School of Electrical Engineering, Tokyo Metropolitan University
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- Kawahara Takuya D.
- Faculty of Engineering, Shinshu University
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- Kobayashi Keiji
- Faculty of Engineering, Shinshu University
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- Kitahara Tsukasa
- Faculty of Engineering, Shinshu University
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- Nomura Akio
- Faculty of Engineering, Shinshu University
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Abstract
The dynamical structure of the atmosphere around the sporadic sodium layer at mid-latitude (-35°N) below 100 km was studied by simultaneous observation with the MU radar at Shigaraki (34.9°N, 136.1°E), and two Na lidars at Shigaraki and in Hachioji (35.6°N, 139.4°E). In the lidar data, fifteen Nas (sporadic sodium layer) events were detected. Wind shear, temperature, and stability indices, at around the time and height of Nas were observed with the MU radar. Strong total wind shear correlated well with Nas, especially when sporadic Es did not accompany. However, no other clear correlations, such as correlations with temperature etc., were found. The result is similar to the report of the lidar observations in Hawaii during the ALOHA-93 campaign (Qian et al., 1998), and suggests a similar generation mechanism between 20°N and 35°N.
Journal
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- Earth, Planets and Space
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Earth, Planets and Space 51 (7-8), 785-797, 1999
Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences
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Details 詳細情報について
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- CRID
- 1390001206510769536
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- NII Article ID
- 10002697985
- 130003956032
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- NII Book ID
- AA11211921
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- ISSN
- 18805981
- 13438832
- http://id.crossref.org/issn/13438832
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- NDL BIB ID
- 4864058
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed