东北较高纬度地区夏季闪电与雷暴相关参数的关系研究

doi:10.3969/j.issn.0253-2778.2014.11.004

中国科学技术大学学报 ›› 2014, Vol. 44 ›› Issue (11): 904-912.DOI: 10.3969/j.issn.0253-2778.2014.11.004

东北较高纬度地区夏季闪电与雷暴相关参数的关系研究

高颖颖

1.中国科学技术大学地球与空间科学学院，中国科学院近地空间环境重点实验室，安徽合肥 230026； 2.中国气象科学院灾害天气国家重点实验室，北京 100081

收稿日期:2014-09-30 修回日期:2014-10-27 出版日期:2014-11-30 发布日期:2014-11-30
通讯作者: 马明
作者简介:高颖颖，女，1988年生，硕士. 研究方向：大气探测. E-mail: gyy1013@mail.ustc.edu.cn
基金资助:
公益性行业（气象）科研专项（GYHY201306017），国家重点基础研究发展（973）计划（2014CB441404），中国气象科学院灾害天气国家重点实验室开放课题资助.

Study on the relationship between lightning activities and thunderstorms over the high-latitude regions in Northeast China

GAO Yingying

1.School of Earth and Space Sciences, CAS Key Laboratory of Geospace Environment, University of Science and Technology of China, Hefei 230026, China； 2.State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China

Received:2014-09-30 Revised:2014-10-27 Online:2014-11-30 Published:2014-11-30

摘要/Abstract

摘要： 利用VLF/LF闪电定位系统数据，并结合多普勒雷达以及卫星云图资料，对2009~2010年较高纬度东北地区夏季的闪电与雷暴相关参数的关系进行了研究.结果表明：闪电多发生在雷达回波强度大于40 dBz的区域，雷暴发生闪电时其30 dBz雷达回波最大高度大于6 km；在雷暴的演变过程中，闪电的峰值时间略滞后于30 dBz雷达回波最大高度的峰值；闪电频数和30 dBz雷达回波最大高度存在指数增长关系；闪电主要发生在云顶红外温度在210~240 K的区域，在消散阶段，雷暴云云顶高度降低、红外温度较高.

关键词: 东北地区, 雷暴, 闪电, 30 dBz雷达回波最大高度, 云顶红外温度

Abstract: The relationship between lightning activities and summer thunderstorms in the summer time during 2009~2010 in Northeast China was investigated by utilizing VLF/LF multi-station network lightning data, Doppler radar echo data and NCEP/CPC Global IR cloud-top temperature data. The results show that most of the lightning occurred in regions where the radar echo exceeded 40 dBz, and the maximum height of 30 dBz radar echo of lightning-producing thunderstorms exceeded 6 km. During the evolution of thunderstorms, the peak time of flash rate slightly lagged behind the peak time of the max height of 30 dBz radar echo. The flash rate tended to increase exponentially with the maximum height of 30 dBz radar echo. Lightning was observed to occur in regions with an IR cloud-top temperature of 210~240 K, and it seems that the IR cloud-top temperature of lightning-producing thunderstorms during the dissipation phase was warmer than that during other stages and that the height of cloud top was lower.

Key words: northeast China, thunderstorm, lightning, max height of 30 dBz, IR cloud-top temperature

高颖颖，祝宝友，马明. 东北较高纬度地区夏季闪电与雷暴相关参数的关系研究[J]. 中国科学技术大学学报, 2014, 44(11): 904-912.

GAO Yingying, ZHU Baoyou, MA Ming. Study on the relationship between lightning activities and thunderstorms over the high-latitude regions in Northeast China[J]. Journal of University of Science and Technology of China, 2014, 44(11): 904-912.

[1]	王基鑫，祝宝友，马明，. 中国东南区域闪电活动特征及其与大气环境参数的关系[J]. 中国科学技术大学学报, 2017, 47(5): 403-412.
[2]	李在光，祝宝友，马明. 不同气压下负流光特征的数值模拟[J]. 中国科学技术大学学报, 2015, 45(5): 379-387.

东北较高纬度地区夏季闪电与雷暴相关参数的关系研究

Study on the relationship between lightning activities and thunderstorms over the high-latitude regions in Northeast China

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