气候变化领域集成服务门户(CCPortal): A Global LIS/OTD Climatology of Lightning Flash Extent Density

CCPortal

DOI	10.1029/2020JD033885
	A Global LIS/OTD Climatology of Lightning Flash Extent Density
	Peterson M.; Mach D.; Buechler D.
发表日期	2021
ISSN	2169897X
卷号	126 期号:8
英文摘要	Previous lightning climatologies derived from Lightning Imaging Sensor (LIS) and Optical Transient Detector (OTD) total lightning measurements have quantified lightning frequency as a Flash Rate Density (FRD). This approach assumes that lightning flashes can be represented as points and quantifies the frequency of lightning centered in each grid cell. However, lightning has a finite extent that can reach hundreds of kilometers. A new climatology based on Flash Extent Density (FED) is constructed for LIS (including ISS-LIS) and OTD that accounts for the horizontal dimension of lightning. The FED climatology documents the frequency that an observer can expect lightning to be visible overhead—regardless of where the flash began or ended. This new FED climatology confirms and elaborates on the previous global LIS/OTD FRD and Americas-only Geostationary Lightning Mapper (GLM) findings. The FED climatology maintains Lake Maracaibo as the global lightning hotspot with an average of 389 flashes/day but designates Karabre in the Democratic Republic of the Congo as the global thunderstorm duty (percent of the total viewtime where lightning is observed) hotspot at 7.29%. Meanwhile, Kuala Lumpur is the national capital city with the most lightning, and its airport (KUL) is the top major airport affected by lightning (in terms of duty). The FED seasonal cycle and month-to-month changes in the “center of lightning” for the three continental chimney regions are also discussed. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	climatology; lightning; LIS; OTD; satellite; thunderstorms
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/185289
作者单位	ISR-2, Los Alamos National Laboratory, Los Alamos, NM, United States; Science and Technology Institute, Universities Space Research Association, Huntsville, AL, United States; Earth System Science Center, University of Alabama in Huntsville, Huntsville, AL, United States
推荐引用方式 GB/T 7714	Peterson M.,Mach D.,Buechler D.. A Global LIS/OTD Climatology of Lightning Flash Extent Density[J],2021,126(8).
APA	Peterson M.,Mach D.,&Buechler D..(2021).A Global LIS/OTD Climatology of Lightning Flash Extent Density.Journal of Geophysical Research: Atmospheres,126(8).
MLA	Peterson M.,et al."A Global LIS/OTD Climatology of Lightning Flash Extent Density".Journal of Geophysical Research: Atmospheres 126.8(2021).