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中国东北地区红色精灵的母体雷暴分析
作者:
作者单位:

1.中国科学技术大学地球和空间科学学院,合肥230026;2.中国科学院大气物理研究所中层大气和全球环境探测重点实验室,北京100029;3.中国科学院大学,北京100049;4.成都信息工程大学电子工程学院,成都610225

作者简介:

王庸平,男,1989年出生,硕士研究生,主要从事中高层放电现象研究。E-mail: wyp8966@mail.ustc.edu.cn

通讯作者:

陆高鹏,E-mail: gaopenglu@mail.iap.ac.cn

基金项目:

国家重点基础研究发展计划项目 973计划 2013068 41574179 41875006 41622501国家重点基础研究发展计划项目(973计划)2014CB441405,中国科学院“百人计划”项目2013068,国家自然科学基金面上项目41574179、41875006,优秀青年科学基金项目41622501


Analysis of Parent Thunderstorms of Red Sprites in Northeast China
Author:
Affiliation:

1.School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026;2.Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Science, Beijing 100029;3.University of Chinese Academy of Sciences, Beijing 100049;4.College of Electronic Engineering, Chengdu University of Information Technology, Chengdu 610225

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    摘要:

    红色精灵是发生在雷暴云上空的一种瞬态发光事件(Transient Luminous Events,TLEs),它们由地闪回击或与连续电流共同作用产生,这表明了对流层和低电离层之间的直接耦合关系。中国大陆的红色精灵观测研究主要在华北地区开展,为了进一步研究中国中高纬度地区的红色精灵现象,并揭示其与母体雷暴之间的相关性,故2017年夏季在吉林辽源开展了观测实验。本文介绍了利用低光度相机在东北地区捕捉到的26例红色精灵事件,并结合闪电定位、天气雷达等同步观测数据,对红色精灵及其母体雷暴特征进行了分析。结果表明,在26例红色精灵事件中,有17次(约2/3)产生于一次尺度较大的中尺度对流系统(Mesoscale Convective System,MCS),其余(约1/3)的红色精灵事件分别由三次尺度相对较小的中尺度对流系统诱发产生。红色精灵母体闪电均位于对流核心边缘区域,中尺度对流系统对流区后无大面积层状云降水区。此外,吉林辽源及安徽合肥同步记录的电磁场脉冲信号表明上述红色精灵事件均由正地闪回击产生。

    Abstract:

    Red sprites are a type of TLEs (Transient Luminous Events) that occur above energetic thunderstorms. TLEs are produced by cloud-to-ground lightning strokes or interaction with continuous current, and manifest a direct coupling relation between the troposphere and lower ionosphere. In mainland China, red sprites are mainly observed in the north. To further study red sprites in the middle and high latitude areas of China and reveal their relation with parent lightning and thunderstorms, the authors conducted an observation experiment in the suburb of Liaoyuan City, Jilin Province in the summer of 2017. In this paper, the authors introduce red sprite events captured by a low-light video camera system in Northeast China. Combined with lightning locations, weather radar, and other synchronized observation data, the authors analyzed the characteristics of red sprites and their parent thunderstorms. The results show that 17 (about 2/3) of the 26 observed red sprite events occurred over a large-scale MCS (Mesoscale Convective System), and the remainder (about 1/3) were induced by three relatively small-scale MCSs. The sprite-producing lightning strokes were located at the edge of the convective core region, and the authors observed no large-scale stratiform cloud precipitation areas behind the MCS convection regions. Electromagnetic pulse signals recorded simultaneously in Liaoyuan (Jilin Province) and Hefei (Anhui Province) stations indicate that all the observed red sprites were generated by positive cloud-to-ground lightning strokes.

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王庸平,陆高鹏,马明,王子健,黄安晶,张鸿波,祝宝友,刘非凡.中国东北地区红色精灵的母体雷暴分析.大气科学,2019,43(5):1055~1067 WANG Yongping,LU Gaopeng,MA Ming,WANG Zijian,HUANG Anjing,ZHANG Hongbo,ZHU Baoyou,.Analysis of Parent Thunderstorms of Red Sprites in Northeast China.Chinese Journal of Atmospheric Sciences (in Chinese),2019,43(5):1055~1067

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  • 收稿日期:2018-05-29
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  • 在线发布日期: 2019-09-23
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