| 测风气球净举力的计算和误差分析 |
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| 引用本文： | 谢国梁.测风气球净举力的计算和误差分析[J].气象学报,1988,46(1):120-126. |
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| 作者姓名： | 谢国梁 |
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| 作者单位： | 南京大学大气科学系 |
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| 摘 要： | 目前在气象和环保部门测量高空风向风速,常采用光学经纬仪跟踪气球的方法。单经纬仪测风或双经纬仪测风同时测垂直气流,以及气球进云后定低空探空仪的高度,均应采用升速已知的气球。气球上升速度W(m/min)取决于气球净举力大小,可由下式确定:
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| 收稿时间： | 1986/2/17 0:00:00 |
| 修稿时间： | 1986/9/23 0:00:00 |
THE COMPUTATION OF THE NET LIFTING FORCE OF PILOT BALLOON AND ERROR ANALYSIS |
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| Xie Guoliang.THE COMPUTATION OF THE NET LIFTING FORCE OF PILOT BALLOON AND ERROR ANALYSIS[J].Acta Meteorologica Sinica,1988,46(1):120-126. |
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| Authors: | Xie Guoliang |
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| Institution: | Department of Atmospheric Sciences, Nanjing University |
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| Abstract: | The net lifting force of pilot balloon has been computed by approximation method in this paper. A new table for this force is given based on the computations.The error of the lifting velocity caused by the net lifting force has also been computed.The results indicate that: in the old table which was currently used in the meteorological station, the error of lifting velocity does not follow a normal distribution, its maximum value was as high as 3.22m/min; the new table we suggested, the error is normaly distributed, its maximum and mean values are reduced to 1.36m/min and 0.05m/min respectively. |
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