气候变化领域集成服务门户(CCPortal): A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition

CCPortal

DOI	10.3390/rs13193883
	A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition
	Wang, Yanhui; Min, Yingchang; Liu, Yali; Zhao, Guo
通讯作者	Wang, YH (通讯作者)，Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat China Meteorol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change ILCEC, Nanjing 210044, Peoples R China. ; Wang, YH (通讯作者)，Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China. ; Wang, YH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm Resources, Publ Tech Serv Ctr, Lanzhou 730000, Peoples R China.
发表日期	2021
EISSN	2072-4292
卷号	13 期号:19
英文摘要	To improve the accuracy of pulse matching and the mapping quality of lightning discharges, the Pearson correlation method combined with empirical mode decomposition (EMD) is introduced for discharge electric field pulse matching. This paper uses the new method to locate the lightning channels of an intra-cloud (IC) lightning flash and a cloud-to-ground (CG) lightning flash and analyzes the location results for the two lightning flashes. The results show that this method has a good performance in lightning location. Compared with the pulse-peak feature matching method, the positioning results of the new method are significantly improved, which is mainly due to the much larger number of positioning points (matched pulses). The number of located radiation sources has increased by nearly a factor of seven, which can significantly improve the continuity of the lightning channel and clearly distinguish the developmental characteristics. In the CG flash, there were three negative recoil streamers in the positive leader channel. After the three negative recoil streamers were finished, taking approximately 1 ms, 12 ms, and 2 ms, respectively, the negative leader channel underwent a K-process. The three negative recoil streamers are not connected to the K-processes in the negative leader channel. We think that the three negative recoil streamers may have triggered the three K-processes, respectively.
关键词	TIME-OF-ARRIVAL ELECTRICAL STRUCTURE CHARGE STRUCTURE THUNDERSTORMS DISCHARGE SYSTEM
英文关键词	lightning 3D location; EMD; Pearson correlation; pulse matching; negative recoil streamer
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000707333200001
来源期刊	REMOTE SENSING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254929
作者单位	[Wang, Yanhui; Min, Yingchang; Liu, Yali] Nanjing Univ Informat Sci & Technol, Key Lab Aerosol Cloud Precipitat China Meteorol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change ILCEC, Nanjing 210044, Peoples R China; [Wang, Yanhui; Min, Yingchang; Liu, Yali] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China; [Wang, Yanhui; Zhao, Guo] Chinese Acad Sci, Northwest Inst Ecoenvironm Resources, Publ Tech Serv Ctr, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yanhui,Min, Yingchang,Liu, Yali,et al. A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition[J]. 中国科学院西北生态环境资源研究院,2021,13(19).
APA	Wang, Yanhui,Min, Yingchang,Liu, Yali,&Zhao, Guo.(2021).A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition.REMOTE SENSING,13(19).
MLA	Wang, Yanhui,et al."A New Approach of 3D Lightning Location Based on Pearson Correlation Combined with Empirical Mode Decomposition".REMOTE SENSING 13.19(2021).