气候变化领域集成服务门户(CCPortal): Evolution of Global Lightning in the Transition From Cold to Warm Phase Preceding Two Super El Niño Events

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DOI	10.1029/2020JD033526
	Evolution of Global Lightning in the Transition From Cold to Warm Phase Preceding Two Super El Niño Events
	Williams E.; Bozóki T.; Sátori G.; Price C.; Steinbach P.; Guha A.; Liu Y.; Beggan C.D.; Neska M.; Boldi R.; Atkinson M.
发表日期	2021
ISSN	2169897X
卷号	126 期号:3
英文摘要	Multistation observations of Schumann resonance (SR) intensity document common behavior in the evolution of continental-scale lightning activity in two super El Niño events, occurring in 1997/98 and 2015/16. The vertical electric field component of SR at Nagycenk, Hungary and the two horizontal magnetic field components in Rhode Island, USA in 1997, and in 2014–2015, the two horizontal magnetic field components at Hornsund, Svalbard and Eskdalemuir, United Kingdom as well as in Boulder Creek, California and Alberta, Canada exhibit considerable increases in SR intensity from some tens of percent up to a few hundred percents in the transition months preceding the two super El Niño events. The UT time distribution of anomalies in SR intensity indicates that in 1997 the lightning activity increases mainly in Southeast Asia, the Maritime Continent and India, i.e. the Asian chimney region. On the other hand, a global response in lightning is indicated by the anomalies in SR intensity in 2014 and 2015. SR-based results are strengthened by comparison to independent lightning observations from the Optical Transient Detector and the World Wide Lightning Location Network, which also exhibit increased lightning activity in the transition months. The increased lightning is attributable to increased instability due to thermodynamic disequilibrium between the surface and the midtroposphere during the transition. The main conclusion is that variations in SR intensity may act as a precursor for the occurrence and magnitude of these extreme climate events, and in keeping with earlier findings, as a precursor to maxima in global surface air temperature. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth-ionosphere cavity; ENSO; extremely low frequency; global lightning activity; lightning; Schumann resonance
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/185518
作者单位	Parsons Laboratory of the Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States; Geodetic and Geophysical Institute, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, Sopron, Hungary; Doctoral School of Environmental Sciences, University of Szeged, Szeged, Hungary; Department of Geophysics, Tel Aviv University, Tel Aviv, Israel; Department of Geophysics and Space Science, Eötvös Loránd University, Budapest, Hungary; MTA-ELTE Research Group for Geology, Geophysics and Space Science, Budapest, Hungary; Centre for Lightning and Thunderstorm Studies, Department of Physics, Tripura University, Agartala, India; British Geological Survey, Riccarton, Edinburgh, United Kingdom; Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland; College of Natural and Health Sciences, Zayed University, Dubai, United Arab Emirates; HeartMath Institute, Boulder Creek, CA, United States
推荐引用方式 GB/T 7714	Williams E.,Bozóki T.,Sátori G.,et al. Evolution of Global Lightning in the Transition From Cold to Warm Phase Preceding Two Super El Niño Events[J],2021,126(3).
APA	Williams E..,Bozóki T..,Sátori G..,Price C..,Steinbach P..,...&Atkinson M..(2021).Evolution of Global Lightning in the Transition From Cold to Warm Phase Preceding Two Super El Niño Events.Journal of Geophysical Research: Atmospheres,126(3).
MLA	Williams E.,et al."Evolution of Global Lightning in the Transition From Cold to Warm Phase Preceding Two Super El Niño Events".Journal of Geophysical Research: Atmospheres 126.3(2021).