Observations of mesospheric sporadic sodium layers with the MU radar and sodium lidars

• Miyagawa Hirohisa

  Radio Atmospheric Science Center, Kyoto University

• Nakamura Takuji

  Radio Atmospheric Science Center, Kyoto University

• Tsuda Toshitaka

  Radio Atmospheric Science Center, Kyoto University

• Abo Makoto

  Graduate School of Electrical Engineering, Tokyo Metropolitan University

• Nagasawa Chikao

  Graduate School of Electrical Engineering, Tokyo Metropolitan University

• Kawahara Takuya D.

  Faculty of Engineering, Shinshu University

• Kobayashi Keiji

  Faculty of Engineering, Shinshu University

• Kitahara Tsukasa

  Faculty of Engineering, Shinshu University

• Nomura Akio

  Faculty of Engineering, Shinshu University

抄録

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.

収録刊行物

• Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ

  Ｅａｒｔｈ，　Ｐｌａｎｅｔｓ　ａｎｄ　Ｓｐａｃｅ 51 (7-8), 785-797, 1999

  地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会

キーワード

• Space and Planetary Science
• Geology

詳細情報

• CRID: 1390001206510769536
• NII論文ID: 10002697985
• NII論文ID: 130003956032
• NII書誌ID: AA11211921
• DOI: 10.1186/bf03353237
• ISSN: 18805981
• ISSN: 13438832
• ISSN: http://id.crossref.org/issn/13438832
• NDL書誌ID: 4864058
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4864058
• Web Site: https://link.springer.com/content/pdf/10.1186/BF03353237.pdf
• Web Site: https://link.springer.com/article/10.1186/BF03353237/fulltext.html
• Web Site: http://link.springer.com/content/pdf/10.1186/BF03353237
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
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