气候变化领域集成服务门户(CCPortal): Mesospheric anomalous diffusion during noctilucent cloud scenarios

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DOI	10.5194/acp-19-5259-2019
	Mesospheric anomalous diffusion during noctilucent cloud scenarios
	Laskar F.I.; Stober G.; Fiedler J.; Oppenheim M.M.; Chau J.L.; Pallamraju D.; Pedatella N.M.; Tsutsumi M.; Renkwitz T.
发表日期	2019
ISSN	16807316
起始页码	5259
结束页码	5267
卷号	19 期号:7
英文摘要	The Andenes specular meteor radar shows meteor trail diffusion rates increasing on average by about 10% at times and locations where a lidar observes noctilucent clouds (NLCs). This high-latitude effect has been attributed to the presence of charged NLC after exploring possible contributions from thermal tides. To make this claim, the current study evaluates data from three stations at high, middle, and low latitudes for the years 2012 to 2016 to show that NLC influence on the meteor trail diffusion is independent of thermal tides. The observations also show that the meteor trail diffusion enhancement during NLC cover exists only at high latitudes and near the peaks of NLC layers. This paper discusses a number of possible explanations for changes in the regions with NLCs and leans towards the hypothesis that the relative abundance of background electron density plays the leading role. A more accurate model of the meteor trail diffusion around NLC particles would help researchers determine mesospheric temperature and neutral density profiles from meteor radars at high latitudes. © 2019 Author(s).
语种	英语
scopus关键词	air temperature; diffusion; electron density; latitude; lidar; mesosphere; meteor; polar mesospheric cloud
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/144474
作者单位	Leibniz Institute of Atmospheric Physics, Kühlungsborn, Germany; Center for Space Physics, Boston University, Boston, MA, United States; Physical Research Laboratory, Ahmedabad, India; National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States; National Institute of Polar Research, Tokyo, Japan; Department of Polar Science, SOKENDAI (Graduate University for Advanced Studies), Tachikawa, Tokyo, Japan
推荐引用方式 GB/T 7714	Laskar F.I.,Stober G.,Fiedler J.,et al. Mesospheric anomalous diffusion during noctilucent cloud scenarios[J],2019,19(7).
APA	Laskar F.I..,Stober G..,Fiedler J..,Oppenheim M.M..,Chau J.L..,...&Renkwitz T..(2019).Mesospheric anomalous diffusion during noctilucent cloud scenarios.Atmospheric Chemistry and Physics,19(7).
MLA	Laskar F.I.,et al."Mesospheric anomalous diffusion during noctilucent cloud scenarios".Atmospheric Chemistry and Physics 19.7(2019).