| 利用SD型闪电频数识别高原雷雨云和冰雹云 |
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| 引用本文： | 黄彦彬,王振会.利用SD型闪电频数识别高原雷雨云和冰雹云[J].南京气象学院学报,2001,24(2):275-280. |
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| 作者姓名： | 黄彦彬 王振会 |
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| 作者单位： | 南京气象学院电子信息与应用物理系, |
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| 摘 要： | 分析了青海省西宁市和互助县两地的闪电频数资料，结果表明，在青海省人工防雹区山多，地形复杂的情况下，使用SD型闪电计数器可以识别饱点周围40km的雷雨云和冰雹云，当雷暴由山区向平地移动时，5min闪电频数不小于40次，可作为作用的指标，而雷暴从平面向山区移动时，作业指标不小于30次／(5min)，雷暴云闪电频数的升度大于10次（5min)也可以作为识别雷雨云和冰雹云的指标，但时效较短，利用ＳＤ型闪电频数识别高原雷雨云和冰雹云是一种简便，经济实用的手段，有助于没有雷达等观测设备的偏僻山区防雹作业。
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| 关 键 词： | 闪电频率 雷雨云 冰雹云 SD型闪电计数器 人工防雹 作业指标 |
| 修稿时间： | 1999年10月27 |
Identification of thundercloud and hailproducing cloud based on lightning counting data |
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| Huang Yanbin,Wang Zhenhui.Identification of thundercloud and hailproducing cloud based on lightning counting data[J].Journal of Nanjing Institute of Meteorology,2001,24(2):275-280. |
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| Authors: | Huang Yanbin Wang Zhenhui |
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| Abstract: | Lightning counting data obtained at Xining in 1997 and at Huzhu in 1998 with an SD-type counter are analyzed．It is found that the counter can cover an area as large as 40 km in diameter even in the mountainous districts．It is also found that for hail suppression seeding to a thunderstorm lightning flash rate should be ≥40 times/(5 min) if the thunderstorm is moving from a mountain area to a plain area and be ≥30 times/(5 min) if the thunderstorm is moving from a plain area to a mountain area．The rising gradient of flash rate，if larger than 10 times/(5 min)，is also indicative of the opportunity for hail suppression．It is concluded that a simple and economic lightning counter is a very useful device for identifying thundercloud and hail producing cloud and for making a decision on the opportunity of hail suppression especially when a weather radar is not available for hail suppression. |
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| Keywords: | lightning flash rates hail producing cloud thunderstorm cloud |
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