气候变化领域集成服务门户(CCPortal): Atmospheric Gravity Waves Observed in the Nightglow Following the 21 August 2017 Total Solar Eclipse

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DOI	10.1029/2020GL088924
	Atmospheric Gravity Waves Observed in the Nightglow Following the 21 August 2017 Total Solar Eclipse
	Paulino I.; Figueiredo C.A.O.B.; Rodrigues F.S.; Buriti R.A.; Wrasse C.M.; Paulino A.R.; Barros D.; Takahashi H.; Batista I.S.; Medeiros A.F.; Batista P.P.; Abdu M.A.; de Paula E.R.; Denardini C.M.; Lima L.M.; Cueva R.Y.C.; Makela J.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	Nighttime airglow images observed at the low-latitude site of São João do Cariri (7.4°S, 36.5°W) showed the presence of a medium-scale atmospheric gravity wave (AGW) associated with the 21 August 2017 total solar eclipse. The AGW had a horizontal wavelength of ∼1,618 km, observed period of ∼152 min, and propagation direction of ∼200° clockwise from the north. The spectral characteristics of this wave are in good agreement with theoretical predictions for waves generated by eclipses. Additionally, the wave was reverse ray-traced, and the results show its path crossing the Moon's shadow of the total solar eclipse in the tropical North Atlantic ocean at stratospheric altitudes. Investigation about potential driving sources for this wave indicates the total solar eclipse as the most likely candidate. The optical measurements were part of an observational campaign carried out to detect the impact of the August 21 eclipse in the atmosphere at low latitudes. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Optical data processing; Atmospheric gravity waves; Driving source; Low latitudes; North Atlantic Ocean; Optical measurement; Propagation direction; Spectral characteristics; Total solar eclipse; Gravity waves; gravity wave; nightglow; solar eclipse; stratosphere; wave generation; wavelength; Atlantic Ocean; Atlantic Ocean (North); Brazil; Cariri; Ceara; Paraiba; Sao Joao do Cariri
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169778
作者单位	Unidade Acadêmica de Física, Universidade Federal de Campina Grande, Campina Grande, Brazil; Instituto Nacional de Pesquisas Espaciais, São José dos Campos, Brazil; W. B. Hanson Center for Space Sciences, University of Texas at Dallas, Richardson, TX, United States; Departamento de Física, Universidade Estadual da Paraíba, Campina Grande, Brazil; Departamento de Física, Universidade Estadual do Maranhão, São Luís, Brazil; Department of Electrical and Computing Engineering, University of Illinois, Urbana-Champaign, IL, United States
推荐引用方式 GB/T 7714	Paulino I.,Figueiredo C.A.O.B.,Rodrigues F.S.,et al. Atmospheric Gravity Waves Observed in the Nightglow Following the 21 August 2017 Total Solar Eclipse[J],2020,47(17).
APA	Paulino I..,Figueiredo C.A.O.B..,Rodrigues F.S..,Buriti R.A..,Wrasse C.M..,...&Makela J.J..(2020).Atmospheric Gravity Waves Observed in the Nightglow Following the 21 August 2017 Total Solar Eclipse.Geophysical Research Letters,47(17).
MLA	Paulino I.,et al."Atmospheric Gravity Waves Observed in the Nightglow Following the 21 August 2017 Total Solar Eclipse".Geophysical Research Letters 47.17(2020).