Observation of Leonid meteor shower and middle/upper atmosphere with the MU radar in 1998-2001

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概要

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• Meteor 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.

• 宇宙航空研究開発機構の論文

著者

• Masayoshi Ueda

  The Nippon Meteor Sciety

• Takuji NAKAMURA

  Radio Science Center for Space and Atmosphere, Kyoto University

• Jun-ichi WATANABE

  National Astronomy Observatory

• Toshitaka TSUDA

  Radio Science Center for Space and Atmosphere, Kyoto University

• Toru SATO

  Graduate School of Informatics, Kyoto University

• Toshitaka Tsuda

  Radio Science Center For Space And Atomosphere Kyoto University

• Takuji Nakamura

  Radio Science Center For Space And Atomosphere Kyoto University

• Toru Sato

  Department Of Communication And Computer Engineering Graduate School Of Informatics Kyoto University

• Jun-ichi Watanabe

  National Astronomical Observatory

関連論文

• Observation of Leonid meteor shower and middle/upper atmosphere with the MU radar in 1998-2001
• Stimultaneous observation of the faint meteors by the MU radar head echo mode and a high sensitive video camera
• Gas-to-dust ratio and chemical composition in comet 55P / Tempel-Tuttle
• Leonid Radiant Project 2001
• Persistent meteoric trains in a movie of the Leonid storm 2001
• Leonid movie taken with an electric-cooled color CCD camera
• Meteoroid Clusters in Leonids
• UV video spectroscopy of Leonid fireballs and persistent trains

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