Seasonal Variation of Pinatubo Volcanic Aerosols in the Stratosphere Observed by Lidar in Fukuoka

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Stratospheric aerosols originating from the June 1991 explosive eruptions of Mt. Pinatubo has been observed at Fukuoka with a Nd:YAG lidar. Sudden increase of the aerosols in the vicinity just above the tropopause in July 1991 was followed by the appearance of extraordinary strong scattering layer around 21-22 km height. The volcanic aerosols stratified in two distinct layers merged into a broad layer when the background wind field changed from the easterlies to the westerlies and the bulk of the aerosols arrived. After having taken its maximum in the first winter the aerosol burden decreased monotonously. Superposed on the decrease we can read the seasonal variations associated with the seasonal variation in the wind field and the tropopause height also after the second year. Height of the center of gravity of the aerosols relative to the height of tropopause have been approaching gradually to a constant value.

収録刊行物

  • Journal of geomagnetism and geoelectricity  

    Journal of geomagnetism and geoelectricity 47(10), 989-998, 1995-10 

    Society of Geomagnetism and Earth, Planetary and Space Sciences

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各種コード

  • NII論文ID(NAID)
    10002027903
  • NII書誌ID(NCID)
    AA00698879
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00221392
  • データ提供元
    CJP書誌  J-STAGE 
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