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Development of a low-frequency magnetic lightning mapping system(LFM-LMS)in North China:validation and preliminary results

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Earth and Planetary Physics 2023年第4期7卷 460-470页

作者： Xiao Li GaoPeng Lu FanChao Lyu HongBo Zhang Kainat Qamar rubin jiang School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Key Laboratory of Atmospheric Optics Anhui Institute of Optics and Fine MechanicsHFIPSChinese Academy of SciencesHefei 230031China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science&TechnologyNanjing 210044China Key Laboratory of Transportation Meteorology of China Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210000China Key Laboratory for Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

A low-frequency magnetic lightning mapping system(LFM-LMS)was built during the SHAndong Triggered Lightning Experiment(SHATLE),based on continuous measurements of magnetic field radiation from *** hardware and source-mapping techniques used by the LFM-LMS were introduced;both Monte Carlo simulations and the observation of rocket-triggered lightning examples were employed to examine the location accuracy and detection effectiveness of the *** estimated that the system’s location accuracy about 100−200 m horizontally and~200 m vertically.A natural intra-cloud lightning flash and a rocket-triggered lightning flash,both with intricate structures and discharging processes,were examined using the three-dimensional mapping *** progressing path of negative lightning leaders is usually well-defined,and its propagation speed is estimated to be(0.5−1.4)×10^(6)m/*** summary,the LFM-LMS can reconstruct the three-dimensional morphology of lightning flashes;this technology provides a efficient method for investigating the characteristics of lightning development,as well as the overall electrical strucuture of thunderstorms.

关键词： rocket-triggered lightning low-frequency magnetic field lightning mapping observation location accuracy

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Study of the characteristics of rocket-triggered lightning energetic radiation and its relationships with the discharge parameters

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Science China Earth Sciences 2023年第3期66卷 633-647页

作者： Xiong ZHANG Xiaoqiang LI Yang ZHANG Baofeng CAO Yi ZHENG rubin jiang Peng LI Hongbo ZHANG Weitao LYU State Key Laboratory of NBC Protection for Civilian Beijing 102205China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China

Through the use of the independently developed Thunderstorm Energetic Radiation Observation System(TEROS),observation experiments of rocket-triggered lightning energetic radiation(RLER)were conducted for the first time at the Field Experiment Base on Lightning Sciences,China Meteorological Administration from May 2021 to July 2021.A total of 17 X-ray bursts were detected during all of the 22 leader/return *** this study,the energy,time,and direction characteristics of Xray burst and its relationships with the corresponding discharge parameters,such as the return stroke peak current,half-peak width,rise time,and interstroke time interval,as well as the associated physical processes,are analyzed and *** showed that energetic radiation is ubiquitous in triggered lightning and is closely related to the last downward leader phase before the return *** photon energies were concentrated in tens to hundreds of ke V,and the average duration of RLER was approximately 27μ***,RLER exhibited directional property inconsistent with a vertical downward beam,which may be related to the development orientation of the lightning *** intensity of RLER was positively correlated with the return stroke peak current,indicating that it directly depends on the lightning intensity,but it would be modulated by the lightning channel *** 17 RLER events showed 3 different time distribution patterns,namely,discrete,continuous,and discrete/continuous pulses,of which the discharge parameters were also *** discrete pulse event had the longest duration,a small half-peak width,and a long interstroke time ***,all of these events occurred during the last several leader/return *** continuous pulse event had a short duration and a small peak *** discrete/continuous pulse event had a moderate duration and a large half-peak width and peak *** three distinct time distribution patterns may be determined by

关键词： Rocket-triggered lightning Lightning energetic radiation X-ray burst Channel base current Leader high-field runaway mechanism

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Propagation of positive, negative, and recoil leaders in upward lightning flashes

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Earth and Planetary Physics 2019年第2期3卷 102-110页

作者： XiuShu Qie ShanFeng Yuan HongBo Zhang rubin jiang ZhiJun Wu MingYuan Liu ZhuLing Sun YunJiao Pu JinLiang Li Abhay Srivastava ZiLong Ma GaoPeng Lu Key Laboratory of Middle Atmosphere and Global Environment Observation (LAGEO) Institute of Atmospheric Science Chinese Academy of Sciences Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of information Science & Technology College of Earth and Planetary Science University of Chinese Academy of Sciences Fujian Meteorological Service Center Fujian Meteorological Bureau

Leader propagation is a fundamental issue in lightning physics. The propagation characteristics of positive leaders and negative leaders are summarized and compared based on data from high-speed camera and electromagnetic field in rocket-triggered lightning and tower-initiated lightning discharges; available channel base current data recorded in rocket-triggered lightning are also used. The negative leaders propagate in a stepped fashion accompanied by many branches. The stems ahead of the negative leader tip determine the manner and direction of the leader propagation, and even the branching and winding of the lightning channel. The impulsive current, electromagnetic field, and related optical images suggest that the positive leader may develop in a step-like fashion at its initial stage of triggered lightning. However, the stepping processes of the positive leader are obviously different from those of the negative leader. Tower-initiated lightning revealed that the most conspicuous characteristics of the stepwise positive leader involve the intermittent brush-like corona zone in front of the leader tip and the luminosity enhancement of the channel behind the tip. In rockettriggered lightning flashes, the charge transferred during an individual step for the negative leader was nearly an order greater than for the positive counterpart. The successive streamers ahead of the leader tip are essential for both negative and positive leader propagation, and the stems could be formed from one or more streamers in the previous negative streamer zone with the main leader channel dim. High-resolution observation of tower lightning also revealed a new type of bidirectional recoil leader, with polarity contrary to the traditional one, traversing in negative channels associated with tower-initiated and rocket-triggered lightning.

关键词： lightning propagation negative leader positive leader recoil leader

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A Review of Atmospheric Electricity Research in China from 2019 to 2022

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Advances in Atmospheric Sciences 2023年第8期40卷 1457-1484页

作者： Weitao LYU Dong ZHENG Yang ZHANG Wen YAO rubin jiang Shanfeng YUAN Dongxia LIU Fanchao LYU Baoyou ZHU Gaopeng LU Qilin ZHANG Yongbo TAN Xuejuan WANG Yakun LIU Shaodong CHEN Lyuwen CHEN Qingyong LI Yijun ZHANG State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Laboratory of Lightning Physics and Protection Engineering Chinese Academy of Meteorological SciencesBeijing 100081China Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Transportation Meteorology of China Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210041China Chinese Academy of Sciences Key Laboratory of Geospace Environment School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD) Nanjing University of Information Science&TechnologyNanjing 210044China Department of Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200030China Institute of Tropical and Marine Meteorology China Meteorological AdministrationGuangzhou 510641China Beijing Key Lab of Transportation Data Analysis and Mining Beijing Jiaotong UniversityBeijing 100044China Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China

Atmospheric electricity is composed of a series of electric phenomena in the *** advances in atmospheric electricity research conducted in China have been achieved in recent *** this paper,the research progress on atmospheric electricity achieved in China during 2019-22 is reviewed focusing on the following aspects:(1)lightning detection and location techniques,(2)thunderstorm electricity,(3)lightning forecasting methods and techniques,(4)physical processes of lightning discharge,(5)high energy emissions and effects of thunderstorms on the upper atmosphere,and(6)the effect of aerosol on lightning.

关键词： atmospheric electricity thunderstorm lightning lightning detection lightning physics

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BT-3500 TSV随机风载荷计算及上层建筑降阻优化

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中国造船 2016年第4期57卷 14-22页

作者：谷家扬邓炳林蒋汝斌蒋志勇管义锋江苏科技大学船舶与海洋工程学院镇江212003

以半潜式钻井服务支持平台BT-3500 TSV原型为研究对象,基于降阻提稳理念对平台上层建筑结构形式及布局提出了3种优化方案。基于Fluent软件结合自编UDF程序并考虑NPD风谱的影响,利用简谐波叠加法将风谱由频域转换为时域内的随机脉动风速... 详细信息

以半潜式钻井服务支持平台BT-3500 TSV原型为研究对象,基于降阻提稳理念对平台上层建筑结构形式及布局提出了3种优化方案。基于Fluent软件结合自编UDF程序并考虑NPD风谱的影响,利用简谐波叠加法将风谱由频域转换为时域内的随机脉动风速,引入雷诺平均法求解N-S方程,结合分离涡（DES）湍流模型对半潜式钻井服务支持平台BT-3500 TSV在自存海况下原型和3种优化方案的风力和风倾力矩进行数值计算和对比分析。研究结果表明：平台在0°~120°风向内风力与风倾力矩呈类似正弦函数变化,最大值出现在60°与120°附近;优化方案1在15°以后的风向区域,风力与风倾力矩较原方案减小明显,尤其在90°风向较原方案减小了30%;方案2在50°以后的风向区域优化效果与方案1基本一致;由于受风面积在风力中占主体地位,方案3优化效果较差。

关键词：半潜式钻井服务支持平台随机风载荷降阻优化数值计算

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Understanding the dynamical-microphysical-electrical processes associated with severe thunderstorms over the Beijing metropolitan region

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Science China Earth Sciences 2021年第1期64卷 10-26页

作者： Xiushu QIE Shanfeng YUAN Zhixiong CHEN Dongfeng WANG Dongxia LIU Mengyu SUN Zhuling SUN Abhay SRIVASTAVA Hongbo ZHANG Jingyu LU Hui XIAO Yongheng BI Liang FENG Ye TIAN Yan XU rubin jiang Mingyuan LIU Xian XIAO Shu DUAN Debin SU Chengyun SUN Wenjing XU Yijun ZHANG Gaopeng LU Da-Lin ZHANG Yan YIN Ye YU Key Laboratory of Middle Atmosphere and Global Environment Observation(LAGEO) Institute of A tmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Institute of Urban Meteorology China Meteorological AdministrationBeijing 100089China College of Atmospheric Science Chengdu University of Information TechnologyChengdu 610225China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration Nanjing University of Information Science&TechnologyNanjing 210044China Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China College of Earth and Planetary Science University of Chinese Academy of ScienceBeijing 100049China Meteorological Observation Centre Beijing Meteorological BureauBeijing 100081China jiangxi Weather Modification Nanchang 330096China Department of Atmospheric and Oceanic Sciences&Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Department of Atmospheric and Oceanic Science University of MarylandMaryland 20742USA

The Dynamical-microphysical-electrical Processes in Severe Thunderstorms and Lightning Hazards(STORM973)project conducted coordinated comprehensive field observations of thunderstorms in the Beijing metropolitan region(BMR)during the warm season from 2014 to *** aim of the project was to understand how dynamical,microphysical and electrical processes interact in severe thunderstorms in the BMR,and how to assimilate lightning data in numerical weather prediction models to improve severe thunderstorm *** platforms used in the field campaign included the Beijing Lightning Network(BLNET,consisting of 16 stations),2 X-band dual linear polarimetric Doppler radars,and 4 laser raindrop *** collaboration also made use of the China Meteorological Administration’s mesoscale meteorological observation network in the Beijing-Tianjin-Hebei *** diverse thunderstorm types were documented,it was found that squall lines and multicell storms were the two major categories of severe thunderstorms with frequent lightning activity and extreme rainfall or unexpected local short-duration heavy rainfall resulting in inundations in the central urban area,influenced by the terrain and environmental *** flash density maximums were found in eastern Changping District,central and eastern Shunyi District,and the central urban area of Beijing,suggesting that the urban heat island effect has a crucial role in the intensification of thunderstorms over *** addition,the flash rate associated with super thunderstorms can reach hundreds of flashes per minute in the central city *** super(5%of the total),strong(35%),and weak(60%)thunderstorms contributed about 37%,56%,and 7%to the total flashes in the BMR,*** to the close connection between lightning activity and the thermodynamic and microphysical characteristics of the thunderstorms,the lightning flash rate can be used as an indicator of severe weather events,such as hail

关键词： Lightning 3D location Dual linear polarimetric Doppler radar Severe thunderstorm Lightning data assimilation Hail Short-term heavy precipitation

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Impacts of the annual cycle of background SST in the tropical Pacific on the phase and amplitude of ENSO

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 12-17页

作者： Song jiang Congwen Zhu Ning jiang State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina

The dominant annual cycle of sea surface temperature(SST)in the tropical Pacific exhibits an antisymmetric mode,which explains 83.4%total variance,and serves as a background of El Niño-Southern Oscillation(ENSO).However,there is no consensus yet on its anomalous impacts on the phase and amplitude of *** on data during 1982-2022,results show that anomalies of the antisymmetric mode can affect the evolution of ENSO on the interannual scale via Bjerknes feedback,in which the positive(negative)phase of the antisymmetric mode can strengthen El Niño(La Niña)in boreal winter via an earlier(delayed)seasonal cycle transition and larger(smaller)annual *** magnitude of the SST anomalies in the equatorial eastern Pacific can reach more than±0.3◦C,regulated by the changes in the antisymmetric mode based on random sensitivity *** reveal the spatial pattern of the annual cycle associated with the seasonal phase-locking of ENSO evolution and provide new insight into the impact of the annual cycle of background SST on ENSO,which possibly carries important implications for forecasting ENSO.

关键词： Annual cycle SST anomaly Antisymmetric mode ENSO

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人工引雷高能辐射观测及数据分析研究

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原子能科学技术 2019年第2期53卷 373-378页

作者：李小强蒋如斌李鹏张雄郑毅李英男刘伟国民核生化灾害防护国家重点实验室北京102205 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

本文基于NaI(Tl)探测器搭建了人工引雷高能辐射观测系统。观测到了人工引雷产生的X射线爆发现象,4次成功的人工引雷实验中观测到3次X射线爆发信号。分析发现,人工引雷先导梯级过程的脉冲信号与高能辐射的脉冲信号具有一一对应的特征,表... 详细信息

本文基于NaI(Tl)探测器搭建了人工引雷高能辐射观测系统。观测到了人工引雷产生的X射线爆发现象,4次成功的人工引雷实验中观测到3次X射线爆发信号。分析发现,人工引雷先导梯级过程的脉冲信号与高能辐射的脉冲信号具有一一对应的特征,表明先导梯级过程可能是闪电高能辐射的产生根源。

关键词：人工引雷闪电高能辐射 X射线爆发碘化钠探测器

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基于人工引雷技术的外浮顶油罐直接雷击过电压试验研究

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高电压技术 2023年第11期49卷 4782-4789页

作者：刘向科任渝帆蒋如斌孙荆茶张鸿波山东省气象台济南250031 山东省气象防灾减灾重点实验室济南250031 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 成都信息工程大学电子工程学院成都610225

在山东人工引发闪电实验的基础上,对外浮顶油罐模型的直接雷击过电压开展探测研究。利用2021年7月12日一次引雷实验,测量得到了4次回击过程的通道底部电流和同时刻油罐不同位置的电压,分析结果表明:该闪电包含4次负极性回击,实测电流最... 详细信息

在山东人工引发闪电实验的基础上,对外浮顶油罐模型的直接雷击过电压开展探测研究。利用2021年7月12日一次引雷实验,测量得到了4次回击过程的通道底部电流和同时刻油罐不同位置的电压,分析结果表明:该闪电包含4次负极性回击,实测电流最大负极性峰值−34.01 kA,10%~90%上升沿时间为0.11~0.19μs。罐顶和浮顶处电压波形的幅值变化范围及随时间波动的趋势基本一致,电压脉冲信号的持续时间均在4μs左右。罐顶和浮顶的电位差波形呈现3个波谷、4个波峰的特征,周期在1μs左右,电位差幅值变化范围为−21.3 kV~+18.8 kV。整体来看,雷电流强度越大,上升时间越短,罐顶与浮盘的电压峰值及二者间电位差峰值越大,振幅越高。以此为基础计算发现,当雷电直接击中油罐,而浮盘与罐体没有可靠连接时,其之间的电位差将引燃罐内油气。最后提出了一些防护建议措施。

关键词：人工引雷油罐直接雷击感应过电压雷电流电位差

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对科研院所专利工作的思考

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科技管理研究 1999年第3期19卷 34-35页

作者：蒋如冰广州有色金属研究院

本文分析了科研院所专利工作落后的原因，提出了加强科研院所专利工作的意见。

关键词：专利知识产权保护科研院所

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