Study on the Scope of Small Amplitude of Cloud-to-ground Lightning in Lightning Weather Monitoring
Study on the Scope of Small Amplitude of Cloud-to-ground Lightning in Lightning Weather Monitoring作者机构：Liaoning Lightning Protection Technical Service Center Liaoning Lightning Protection Engineering Co.Ltd.
出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)
年 卷 期：2014年第5卷第3期
页 面：7-10,15页
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070601[理学-气象学] 08[工学] 0706[理学-大气科学] 0713[理学-生态学]
主 题：Lightning location system Quality control Small amplitude Cloud-to-ground lightning Logarithmic normal distribution China
摘 要：Based on lightning location data in Chongqing region during 1999-2008,the frequency of lightning in various amplitude ranges and its annual variations were analyzed ***,with the aid of matlab mathematical software,the distribution of the lightning location data was fitted using logarithmic normal distribution *** results showed that after data of cloud-to-ground lightning with current amplitude from-5 to5 kA were deleted from lightning location data,the statistical characteristics of cloud-to-ground lightning could be reflected ***,lightning with current amplitude from-5 to 5 kA accounted for 1.05%（less than 2%）,which accorded with the detection principle of lightning position indicator（there existed error detection）.Therefore,cloud-to-ground lightning with current amplitude of-5-5 kA in lightning location data of Chongqing region was defined as small amplitude of cloud-to-ground lightning,which could provide scientific references for the processing of lightning location data in Chongqing region as well as analysis and quality control of lightning location data in other regions.
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