| 回击电流及热效应与闪电光谱和通道温度的相关性分析 |
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| 引用本文： | 瞿海燕,张廷龙,潘慧玲.回击电流及热效应与闪电光谱和通道温度的相关性分析[J].甘肃气象,2014(1):10-16. |
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| 作者姓名： | 瞿海燕 张廷龙 潘慧玲 |
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| 作者单位： | [1] 中国科学院国家科学图书馆兰州分馆/中国科学院资源环境与科学信息中心,甘肃 兰州730000 [2]中国科学院寒区旱区环境与工程研究所,甘肃 兰州 730000 [3]海南省气象局,海口 570203 [4]甘肃省交通职业技术学院,甘肃 兰州730070 |
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| 基金项目： | 国家自然科学基金面上项目（41375011、41175092）资助 |
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| 摘 要： | 依据在青海地区由无狭缝光栅摄谱仪获得的2次多回击云对地闪电的光谱,结合同步辐射电场变化资料,计算了放电等离子体的温度、光谱总强度以及回击通道的峰值电流和作用积分。对观测结果和这些参数进行对比分析,结果表明:(1)同一次地闪的不同回击过程中,光谱总强度与放电电流的大小呈正相关;(2)相邻2次回击的时间间隔较长时,等离子体通道的温度与电流作用积分基本成正比;当相邻2次回击的时间间隔较短时,通道温度与作用积分不再线性相关。
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| 关 键 词： | 云地闪电 光谱 通道温度 回击电流 作用积分 |
Analysis on Correlation Between Return Stroke Current,Its Thermal Effects and Lightning Spectra,Channel Temperature |
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| QU Haiyan,ZHANG Tinglong,PAN Huiling.Analysis on Correlation Between Return Stroke Current,Its Thermal Effects and Lightning Spectra,Channel Temperature[J].Gansu Meteorology,2014(1):10-16. |
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| Authors: | QU Haiyan ZHANG Tinglong PAN Huiling |
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| Institution: | 1. Lanzhou Branch of the National Science Library/Scientific Information Center for Resources and Environment, Chinese Academy of Sciences, Lanzhou 730000, China; 2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 3. Hainan Meteorogical Bureau, Haikou 570203, China; 4. Gansu Vocational and Technical College of Communications, Lanzhou 730070 ,China) |
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| Abstract: | The spectrum of cloud-to-ground lightning flashes with two-multiple return strokes have been obtained in the Qinghai Plat-eau by using a slitless spectrograph,the channel temperatures,the total intensity of spectrum,the peak value of current and its action in-tegral have been calculated combining the information of synchronous radiated electric field.According to the observation results and anal-ysis on them,the conclusions are as follows：（1 ）The total intensity of spectra has a positive correlation with the discharge current in dif-ferent strokes of one cloud-to -ground lightning.（2）During the lightning process,if the time interval between two adjacent return strokes is relatively long,the temperature and action integral of current are close to positive correlation.Whereas if the time interval be-tween two adjacent return strokes is relatively short,the temperature and action integral had non-linear correlation each other. |
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| Keywords: | cloud-to-ground lightning lightning spectra channel temperature return stroke current action integral |
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