レーザーレーダーによる降雪雲の観測による降雪開始予測の可能性の検討

DOI

書誌事項

タイトル別名
  • Forecasting of Snowfall by Observing the Snow Clouds Using Lidar

抄録

The possibility of short-time forecasting of snowfall by a Mie lidar, which can measure the depolarization ratio, is discusssed. The information which can be obtained by lidar observation on snow clouds are the integrated intensity of backscattered signal, ceiling height, information of wind velocity which is obtained from the short-time variation of signal intensity and the depolarization ratio. Among these, it was found in field studies (Yonezawa) that the time variation of the ceiling height is most useful, to forecast the beginning of snowfall. By combining lidar data which was obtained in Yonezawa and in Tokyo, it was found that the ceiling height began to drop approximately 2 hours before the snow fell when the temperature on the ground was less than 0°C. This implies that snowfall can be predicted about 2 hours in advance.

収録刊行物

詳細情報

  • CRID
    1390001204666865408
  • NII論文ID
    130003638841
  • DOI
    10.11440/rssj1981.5.321
  • ISSN
    18831184
    02897911
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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