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DOI	10.1029/2019JD031087
	Changes to the Appearance of Optical Lightning Flashes Observed From Space According to Thunderstorm Organization and Structure
	Peterson M.; Rudlosky S.; Zhang D.
发表日期	2020
ISSN	2169897X
卷号	125 期号:4
英文摘要	Optical lightning observations from space reveal a wide range of flash structure. Lightning imagers such as the Geostationary Lightning Mapper and Lightning Imaging Sensor measure flash appearance by recording transient changes in cloud top illumination. The spatial and temporal optical energy distributions reported by these instruments depend on the physical structure of the flash and the distribution of hydrometeors within the thundercloud that scatter and absorb the optical emissions. This study explores how flash appearance changes according to the scale and organization of the parent thunderstorms with a focus on mesoscale convective systems. Clouds near the storm edge are frequently illuminated by large optical flashes that remain stationary between groups. These flashes appear large because their emissions can reflect off the exposed surfaces of nearby clouds to reach the satellite. Large stationary flashes also occur in small isolated thunderstorms. Optical flashes that propagate horizontally, meanwhile, are most frequently observed in electrified stratiform regions where extensive layered charge structures promote lateral development. Highly radiant “superbolts” occur in two scenarios: embedded within raining stratiform regions or in nonraining boundary/anvil clouds where optical emissions can take a relatively clear path to the satellite. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	GLM; GOES; lightning; thunderstorm
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/186173
作者单位	ISR-2, Los Alamos National Laboratory, Los Alamos, NM, United States; NESDIS, STAR, SCSB, College Park, MD, United States; Earth System Science Interdisciplinary Center/Cooperative Institute for Climate and Satellites-Maryland, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Peterson M.,Rudlosky S.,Zhang D.. Changes to the Appearance of Optical Lightning Flashes Observed From Space According to Thunderstorm Organization and Structure[J],2020,125(4).
APA	Peterson M.,Rudlosky S.,&Zhang D..(2020).Changes to the Appearance of Optical Lightning Flashes Observed From Space According to Thunderstorm Organization and Structure.Journal of Geophysical Research: Atmospheres,125(4).
MLA	Peterson M.,et al."Changes to the Appearance of Optical Lightning Flashes Observed From Space According to Thunderstorm Organization and Structure".Journal of Geophysical Research: Atmospheres 125.4(2020).