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Characteristics of thunderstorms and lightning flashes in the Chinese inland plateau
  • 期刊名称:Sciences in Cold and Arid Regions
  • 时间:0
  • 页码:271-277
  • 分类:P427.32[天文地球—大气科学及气象学] V321.227[航空宇航科学与技术—人机与环境工程;航空宇航科学技术]
  • 作者机构:[1]Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
  • 相关基金:supported by National Natural Science Foundation of China (Grant No. 40905001, 40775004); the Main Direction Program of the Knowledge Innovation of Chinese Academy of Sciences (Grant No.KZCX2-YW-206)
  • 相关项目:雷暴云内带电降水粒子的观测研究
中文摘要:

在中国内陆高原的三个不同高度区域的雷雨的电的特征在这份报纸被分析了。结果出现,根据表面的极性电的(E) 地,雷雨能在学习区域被划分成二个范畴:显示出正常 tripole 的电的费用结构(正常类型),并且与 larger-than-usual 显示出特殊 tripole 费用 sturcture 的其它在雷雨的底降低正电荷中心( LPCC )(特殊类型),在当雷雨是架空的时,导致的表面 E 领域被 LPCC 控制的地方。我们发现雷雨的二种类型与高度在特殊类型的雷雨增加的不同区域,和百分比有不同出现。总体上,雷雨的闪光率是相当低的,并且吝啬的价值关于 1-3 fl/min,当时闪光率特殊类型比正常类型的雷雨的稍微大。cloud-to-ground 的统计结果闪光(CG ) 数字显示比率 of+CG 与高度炫耀增加,与价值大约 14.7% 通过 25.4% 。

英文摘要:

The electrical characteristics of thunderstorms in three different altitude regions of the Chinese inland plateau have been analyzed in this paper. The results show, according to the polarity of the surface electric (E) field, that the thunderstorms can be divided into two categories in the study regions: one showing the normal tripole electrical charge structure (normal-type), and the other showing the special tripole charge structure with a larger-than-usual lower positive charge center (LPCC) at the base of thunderstorm (special-type), where the induced surface E field is controlled by the LPCC when a thunderstorm is overhead. We find that the two types of thunderstorms have different occurrences in different regions, and the percentage of special-type thunderstorms increases with the altitude. On the whole, the flash rate of thunderstorms is quite low, and the mean value is about 1-3 fl/min, while the flash rate of special-type is slightly greater than that of the normal-type thunderstorm. The statistical results of cloud-to-ground flash (CG) numbers indicate that the ratio of +CG flash increases with the altitude, with the value about 14.7 percent through 25.4 percent.

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