【摘 要】
：
根据多回击闪电的特征要素,建立多回击闪电判别指标,对2013－2015 年福建地区ADTD 资料中多回击闪电的分布规律及特征参数进行统计分析.结果 表明,福建地区多回击闪电占比为30.58％,平均回击而正极性多回击最多包含4 次回击过程.负极性多回击平均回击电流为10.09KA,正极性多回击平均回击电流为35.72KA,正极性多回击闪电的首次回击和继后回击平均电流强度分别为45.03 和26.81
【机 构】
：
福建省气象灾害防御技术中心,福州 350001 福建省气象台,福州,350001
论文部分内容阅读
根据多回击闪电的特征要素,建立多回击闪电判别指标,对2013－2015 年福建地区ADTD 资料中多回击闪电的分布规律及特征参数进行统计分析.结果 表明,福建地区多回击闪电占比为30.58％,平均回击而正极性多回击最多包含4 次回击过程.负极性多回击平均回击电流为10.09KA,正极性多回击平均回击电流为35.72KA,正极性多回击闪电的首次回击和继后回击平均电流强度分别为45.03 和26.81kA,最大电流强度分别为163.13 和149.21kA,负极性多回击闪电的首次回击和继后回击平均电流强度分别为-11.52和-9.23kA,最大电流强度分别为-103.71 和-96.12kA,首次回击的强度多数大于继后回击的强度.回击间隔分布呈现准正态分布特征,其中60-90ms 之间的次数最多,算术平均值为135.36ms,最小为2.18ms.正、负多回击次数的日峰值分别出现在17 时和16 时,5-9 月多回击地闪处于高发期.
其他文献
漆酶作为-种绿色环保的多酚氧化酶类，对有机芳香化合物(尤其酚类)及衍生物均具有良好的降解效果，在生物质利用、工业废水的处理、污染环境的生物修复以及在食品和动物营养等领域应用方面具有优势和潜力。本文就自然界酚类化合物的来源及去除方法进行简单总结，旨在为进一步合理利用酚类化合物奠定基础。
A polyvinyl alcohol-degrading enzyme producing strain of a Janthinobacterium sp.,which can use polyvinyl alcohol as sole carbon source,was isolated from Daihai.Morphological characteristics and 16S rD
本试验采用平板分离技术，从磐安地区红花芍药(Paeonia lactiflorHong hua)植物病叶中分离获得1株病原菌，通过对病原菌分子水平鉴定和病原菌菌落形态及显微结构的观察，结果表明病原菌为总状毛霉(Mucor racemosus)，红花芍药为该真菌新的寄主植物。
A Gram-stain negative,non-sporogenous,non-motile,aerobic coccobacilli,designated BRTC-lT,was isolated from the larval gut of Omphisa fuscidentalis,which was collected from Xishuangbanna Dai Autonomous
In order to clone active catalase gene from bacteria,we introduced a method of shotgun integrating specific sceen from Escherichia coli DH 5α.Genome DNA was extracted from E.coli DH5 and partially dig
A Gram-stain-negative and rod-shaped bacterium,named as strain XMTR2C3T,was isolated from a common limpet,Patelloida saccharian lanx (Reeve) on the intertidal rocks in Xiamen,China.The colony of this
A novel n-hexadecane-degrading bacterium,designated strain LAM1007T was isolated from oil-contaminated soil collected from Daqing oil field at Heilongjiang Province of China.Cells of strain LAM1007T w
A coccus-shaped,non-spore-forming actinobacterium,designated strain 4Q3S-3T,was isolated from a surface-sterilized bark of the mangrove plant Kandelia candel collected from Cotai Ecological Zones in M
A Gram-stain-negative,aerobic bacterial strain,designated Y21 T,was isolated from surface lake water in Xiamen,Fujian Province of China Growth was observed at temperatures from 4 to 37 ℃,at salinities
A yellow-pigmented bacterial strain,designated 9NM-10T,was isolated from an abandoned lead-zinc mine in Meizhou,Guangdong Province,China.The cells were strictly aerobic,oxidase-and catalase-positive a