气候变化领域集成服务门户(CCPortal): Analysis of Location Errors of the U.S. National Lightning Detection Network Using Lightning Strikes to Towers

CCPortal

DOI	10.1029/2020JD032530
	Analysis of Location Errors of the U.S. National Lightning Detection Network Using Lightning Strikes to Towers
	Zhu Y.; Lyu W.; Cramer J.; Rakov V.; Bitzer P.; Ding Z.
发表日期	2020
ISSN	2169897X
卷号	125 期号:9
英文摘要	The location accuracy of the U.S. National Lightning Detection Network (NLDN) has been evaluated using as ground-truth rocket-triggered lightning data or video records but only at a few specific locations. In this study, by using the NLDN data for the events attributable to lightning strikes to towers, the location error of the NLDN across the entire contiguous United States was evaluated for the first time. We found that, on average, the NLDN median location error reduced from 198 to 84 m after the 2013 NLDN upgrade. The location error at the periphery of the network is significantly larger than that in its interior. In the coastal regions, there is directional location bias toward the water. Simulation results suggest that the bias is related to the lengthening of field waveform front due to electromagnetic wave propagation over lossy ground coupled with the asymmetrical sensor configuration relative to the strike point (lack of offshore sensors). ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186029
作者单位	Earth Systems Science Center, University of Alabama in Huntsville, Huntsville, AL, United States; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Vaisala, Tucson, AZ, United States; Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, United States; Department of Atmospheric Sciences, University of Alabama in Huntsville, Huntsville, AL, United States
推荐引用方式 GB/T 7714	Zhu Y.,Lyu W.,Cramer J.,et al. Analysis of Location Errors of the U.S. National Lightning Detection Network Using Lightning Strikes to Towers[J],2020,125(9).
APA	Zhu Y.,Lyu W.,Cramer J.,Rakov V.,Bitzer P.,&Ding Z..(2020).Analysis of Location Errors of the U.S. National Lightning Detection Network Using Lightning Strikes to Towers.Journal of Geophysical Research: Atmospheres,125(9).
MLA	Zhu Y.,et al."Analysis of Location Errors of the U.S. National Lightning Detection Network Using Lightning Strikes to Towers".Journal of Geophysical Research: Atmospheres 125.9(2020).