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titleObservation of Leonid meteor shower and middle/upper atmosphere with the MU radar in 1998-2001
Author(jpn)中村, 卓司; 渡部, 潤一; 津田, 敏隆; 佐藤, 亨; 上田, 昌良
Author(eng)NAKAMURA, Takuji; WATANABE, Jun-ichi; TSUDA, Toshitaka; SATO, Toru; UEDA, Masayoshi
Author Affiliation(jpn)京都大学; 国立天文台; 京都大学; 京都大学; 日本流星研究会
Author Affiliation(eng)Radio Science Center for Space and Atmosphere, Kyoto University; National Astronomy Observatory; Radio Science Center for Space and Atmosphere, Kyoto University; Graduate School of Informatics, Kyoto University; the Nippon Meteor Sciety
Issue Date2003-03
PublisherInstitute of Space and Astronautical Science
Publication titleThe Institute of Space and Astronautical Science repot. S.P.
Start page129
End page135
Publication date2003-03
AbstractMeteor trail and head echo observations during the Leonid shower periods have beencarried out using the middle and upper atmosphere (MU) radar, Shigaraki, Japan (35N, 136E) since1990 and 1998, respectively. In 1998, 1999 and 2001, peak activities of Leonid meteor showers wereobserved with the same observational set-up. Characteristics of the outburst in the three yearsare displayed. The wind velocity profiles between 80 and 100 km altitudes were simultaneouslydetermined with I km height and 30 minutes time resolutions with underdense meteor echoes.Significant local time variations in the orders of day-to-day, and year-to-year of the wind velocityproflle and wind shear are exhibited, as they would affect significantly the evolution of persistenttrain.
Document TypeDepartmental Bulletin Paper
JAXA Category宇宙科学研究所

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