南京西安北平三处云之高度

Height of Base of Clouds in China, Determined from Pilot Balloon Ascents

    摘要
  • 摘要: (一)测量云高之方法: 测量云之高度,必须於申乙两处,同时以经纬仪量云所在之方位,及其仰角。甲乙两处相距约须有千五百公尺之遥;两处并须有电话相通,俾观测者得约定时间及指定欲测之云块。两处同时测定之後,则云之高度即可求得。

     

    Abstract: The mean heights of different types of cloud over Nanking, Sian and Peiping, determined from pilot balloon ascents, are tabulated nn Tables 11 and 111.The periods of observation at these stations are 3s follows.

     

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