气候变化领域集成服务门户(CCPortal): Mesospheric gravity wave activity estimated via airglow imagery, multistatic meteor radar, and SABER data taken during the SIMONe-2018 campaign

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DOI	10.5194/acp-21-13631-2021
	Mesospheric gravity wave activity estimated via airglow imagery, multistatic meteor radar, and SABER data taken during the SIMONe-2018 campaign
	Vargas F.; Chau J.L.; Charuvil Asokan H.; Gerding M.
发表日期	2021
ISSN	1680-7316
起始页码	13631
结束页码	13654
卷号	21 期号:17
英文摘要	We describe in this study the analysis of small and large horizontal-scale gravity waves from datasets composed of images from multiple mesospheric airglow emissions as well as multistatic specular meteor radar (MSMR) winds collected in early November 2018, during the SIMONe-2018 (Spread-spectrum Interferometric Multi-static meteor radar Observing Network) campaign. These ground-based measurements are supported by temperature and neutral density profiles from TIMED/SABER (Thermosphere, Ionosphere, Mesosphere Energetics and Dynamics/Sounding of the Atmosphere using Broadband Emission Radiometry) satellite in orbits near Kühlungsborn, northern Germany (54.1 N, 11.8 E). The scientific goals here include the characterization of gravity waves and their interaction with the mean flow in the mesosphere and lower thermosphere and their relationship to dynamical conditions in the lower and upper atmosphere. We have obtained intrinsic parameters of small- and large-scale gravity waves and characterized their impact in the mesosphere via momentum flux (FM) and momentum flux divergence (FD) estimations. We have verified that a small percentage of the detected wave events is responsible for most of FM measured during the campaign from oscillations seen in the airglow brightness and MSMR winds taken over 45 h during four nights of clear-sky observations. From the analysis of small-scale gravity waves (λh < 725 km) seen in airglow images, we have found FM ranging from 0.04-24.74 m2 s-2 (1.62 ± 2.70 m2 s-2 on average). However, small-scale waves with FM > 3 m2 s-2 (11 % of the events) transport 50 % of the total measured FM. Likewise, wave events of FM > 10 m2 s-2 (2 % of the events) transport 20 % of the total. The examination of large-scale waves (λh > 725 km) seen simultaneously in airglow keograms and MSMR winds revealed amplitudes > 35 %, which translates into FM Combining double low line 21.2-29.6 m2 s-2. In terms of gravity-wave-mean-flow interactions, these large FM waves could cause decelerations of FD Combining double low line 22-41 m s-1 d-1 (small-scale waves) and FD Combining double low line 38-43 m s-1 d-1 (large-scale waves) if breaking or dissipating within short distances in the mesosphere and lower thermosphere region. © 2021 Fabio Vargas et al.
语种	英语
scopus关键词	amplitude; estimation method; gravity wave; mesoscale meteorology; mesosphere; satellite data; satellite imagery; thermosphere
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246585
作者单位	Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States; Leibniz Institute of Atmospheric Physics, University of Rostock, Kühlungsborn, 18225, Germany; Laboratoire de Mécanique des Fluides et d'Acoustique, CNRS, École Centrale de Lyon, Université Claude Bernard Lyon 1, INSA de Lyon, Écully, France
推荐引用方式 GB/T 7714	Vargas F.,Chau J.L.,Charuvil Asokan H.,et al. Mesospheric gravity wave activity estimated via airglow imagery, multistatic meteor radar, and SABER data taken during the SIMONe-2018 campaign[J],2021,21(17).
APA	Vargas F.,Chau J.L.,Charuvil Asokan H.,&Gerding M..(2021).Mesospheric gravity wave activity estimated via airglow imagery, multistatic meteor radar, and SABER data taken during the SIMONe-2018 campaign.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(17).
MLA	Vargas F.,et al."Mesospheric gravity wave activity estimated via airglow imagery, multistatic meteor radar, and SABER data taken during the SIMONe-2018 campaign".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.17(2021).